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WO2011023071A1 - 带宽信息通知方法、业务处理方法、网络节点及通信系统 - Google Patents

带宽信息通知方法、业务处理方法、网络节点及通信系统 Download PDF

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Publication number
WO2011023071A1
WO2011023071A1 PCT/CN2010/076044 CN2010076044W WO2011023071A1 WO 2011023071 A1 WO2011023071 A1 WO 2011023071A1 CN 2010076044 W CN2010076044 W CN 2010076044W WO 2011023071 A1 WO2011023071 A1 WO 2011023071A1
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WO
WIPO (PCT)
Prior art keywords
service
bandwidth information
link
allocated
network node
Prior art date
Application number
PCT/CN2010/076044
Other languages
English (en)
French (fr)
Inventor
�龙昊
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to BR112012004573A priority Critical patent/BR112012004573A2/pt
Priority to RU2012112542/07A priority patent/RU2509447C2/ru
Priority to AU2010289133A priority patent/AU2010289133A1/en
Priority to CA2772432A priority patent/CA2772432A1/en
Priority to JP2012527190A priority patent/JP2013503583A/ja
Priority to EP10811231.9A priority patent/EP2475131B1/en
Publication of WO2011023071A1 publication Critical patent/WO2011023071A1/zh
Priority to US13/407,056 priority patent/US20120155263A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/20—Traffic policing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/12—Avoiding congestion; Recovering from congestion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/26—Flow control; Congestion control using explicit feedback to the source, e.g. choke packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/12—Avoiding congestion; Recovering from congestion
    • H04L47/129—Avoiding congestion; Recovering from congestion at the destination endpoint, e.g. reservation of terminal resources or buffer space

Definitions

  • bandwidth information notification method The bandwidth information notification method, the service processing method, the network node, and the communication system.
  • the application is filed on August 31, 2009, and the application number is 200910172870.6, and the invention name is "bandwidth information notification method, service processing method, network node, and communication system.
  • the priority of the Chinese application the entire contents of which are incorporated herein by reference.
  • the present invention relates to the field of communications technologies, and in particular, to a bandwidth information notification method, a service processing method, a network node, and a communication system.
  • IP Internet Protocol
  • TDM Time Division Multiplexing
  • SDH Synchronous Digital Hierarchy/Multi-Service Transport Platform
  • microwaves are widely used in carrier networks.
  • SDH microwaves and Pseudochronous Digital Hierarchy (PDH) microwaves are used.
  • packet microwaves are correspondingly It has begun to replace SDH/PDH microwave equipment and has gained a lot of applications in the market in recent years.
  • the packet microwave refers to the packet device using a microwave interface.
  • Adaptive Modulation (AM) causes the bandwidth to change as well, and the changed bandwidth is determined.
  • the transport network usually requires a strong operational management (OAM) capability, but the current PTN 0AM functionality is just a few general operations.
  • the inventors found that: Since the current PTN 0AM function is only a general operation, the bandwidth information allocated to the service connection after the adaptive modulation of the microwave link cannot be notified to the microwave link.
  • the endpoint of the service connection is such that the endpoint of the service connection still controls the traffic flow with the bandwidth before the adaptive modulation, resulting in traffic congestion.
  • the embodiment of the present invention provides a bandwidth information notification method, a service processing method, a network node, and a communication system, so that an endpoint connected to a service where the microwave link is located can obtain a bandwidth allocated for the service connection when the microwave link is in the current bandwidth information of the link. information.
  • the embodiment of the invention provides a bandwidth information notification method, including:
  • the link is allocated to the service where the link is located when the current bandwidth information of the link is determined. Connected service bandwidth information;
  • the embodiment of the invention further provides a service processing method, including:
  • the allocated service bandwidth information is determined by the network node connected by the link according to the correspondence between the link bandwidth information and the service bandwidth information of the service connection, and the allocated service bandwidth The information is the service bandwidth information that the link is allocated to the service connection when the current bandwidth information of the link is;
  • the embodiment of the invention further provides a network node, including:
  • An acquiring unit configured to acquire current link information of a link of the link
  • a determining unit configured to compare the service bandwidth information of the service according to the link bandwidth information Correspondingly, when the current bandwidth information of the link acquired by the acquiring unit is determined, the link is allocated to the service bandwidth information of the service connection where the link is located;
  • a sending unit configured to send, by using the service connection, the service bandwidth information determined by the determining unit to the service connection, to enable the endpoint of the service connection to be based on the allocated service bandwidth Information is used to adjust business strategies.
  • the embodiment of the invention further provides a network node, including:
  • a receiving unit configured to receive service bandwidth information allocated for the service connection;
  • the allocated service bandwidth information is determined by a network node connected by the link according to a correspondence between the link bandwidth information and the service bandwidth information of the service connection, where
  • the allocated service bandwidth information is service bandwidth information that the link is allocated to the service connection when the current bandwidth information of the link is used;
  • a determining unit configured to determine, according to a correspondence between the preset service bandwidth information and the service policy, a service policy corresponding to the service bandwidth information that is received by the receiving unit for the service connection;
  • a processing unit configured to perform service processing according to the service policy determined by the determining unit.
  • the embodiment of the present invention further provides a communication system, which includes the network node provided by the embodiment of the present invention.
  • the network node connected to the microwave link in this embodiment can obtain the current bandwidth information of the link of the microwave link, and determine the current bandwidth information of the link according to the correspondence between the link bandwidth information and the service bandwidth information.
  • the microwave link is allocated to the service bandwidth information of the service connection where the microwave link is located, the allocated service bandwidth information is sent to the endpoint of the service connection, so that the endpoint of the service connection can perform the service according to the allocated service bandwidth information.
  • the policy is adjusted so that the bandwidth of the microwave link can meet the requirements of the service and avoid service congestion.
  • Embodiment 1 is a flowchart of Embodiment 1 of a method for notifying a bandwidth information according to an embodiment of the present invention
  • Embodiment 2 is a flowchart of Embodiment 2 of a method for notifying a bandwidth information according to an embodiment of the present invention
  • Embodiment 3 is a flowchart of Embodiment 3 of a method for notifying a bandwidth information according to an embodiment of the present invention
  • FIG. 4 is a flowchart of an embodiment of a service processing method according to an embodiment of the present invention.
  • FIG. 5 is a topological diagram of an end-to-end connection in Embodiment 5 of a method for notifying a bandwidth information according to Embodiment 4 of the present invention
  • Embodiment 6 is a topological diagram of an end-to-end connection in Embodiment 6 of a bandwidth information notification method according to an embodiment of the present invention
  • FIG. 7 is a structural diagram of Embodiment 1 of a network node according to an embodiment of the present invention.
  • FIG. 8 is a structural diagram of Embodiment 2 of a network node according to an embodiment of the present invention.
  • FIG. 9 is a structural diagram of Embodiment 3 of a network node according to an embodiment of the present invention.
  • FIG. 10 is a structural diagram of Embodiment 4 of a network node according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of the first embodiment of the method for communicating the bandwidth information.
  • the embodiment describes the processing flow of the network node connected by the microwave link, including:
  • the link current bandwidth information of the microwave link can be obtained by the adaptive modulation module of the network node.
  • An embodiment of the present invention can actively acquire a link of a microwave link by using the following manner.
  • Bandwidth information Detects the current modulation mode of the microwave link and obtains the bandwidth information of the microwave link in the current modulation mode.
  • the bandwidth information of the microwave link in the current modulation mode is the current bandwidth information of the link of the microwave link.
  • the acquired bandwidth information may be bandwidth level indication information or modulation mode information or the like.
  • the optimal modulation mode of the ⁇ wave link is 64 Quadrature Amplitude Modulation (QAM) modulation mode, where the link bandwidth is 1 Gbps; when the modulation mode is 16 QAM modulation mode, the link is The bandwidth is 0. 6 Gbps; in the 64 QAM modulation mode, the bandwidth level indication information may be 1 Gbps; in the 16 QAM modulation mode, the bandwidth level indication information may be 0. 6 Gbps; in the 64 QAM modulation mode, the modulation mode information may be It is a 64QAM modulation mode; in the 16 QAM modulation mode, the modulation mode information can be a 16QAM modulation mode.
  • QAM Quadrature Amplitude Modulation
  • the bandwidth level indication information may not be a specific bandwidth value, but a number representing a bandwidth value, such as 7 represents 1 Gbps, and 5 represents 0. 6 Gbps, etc., in the 64 QAM modulation mode.
  • the bandwidth level indication information may be 7; in the 16 QAM modulation mode, the bandwidth level indication information may be 5; which specific number represents which bandwidth value can be configured as needed.
  • a microwave link is a segment of a multi-segment link through which a service connection passes, that is, a link between at least two network nodes of the service connection is a microwave link.
  • the service connection can be an Ethernet connection, such as a virtual local area network (VLAN: Vi rtua l Loca l Area Network) connection, carrier backbone bridging - traffic engineering Ethernet switching path ( PBB- TE ESP : Provider Backbone Br idge Traff ic Engineer ing Ethernet Swi tch Path ) connection; the service connection may be a Label Switched Path (LSP) connection, specifically a multi-protocol label A non-Ethernet connection such as a MPLS LSP (Multi Protocol Label Switch Labeled Path) connection.
  • LSP Label Switched Path
  • a microwave link can carry one or more service connections, and each service connection occupies all or part of the link bandwidth of the microwave link.
  • the connected network node of the microwave link maintains the service bandwidth information allocated to each service connection.
  • the correspondence between the preset link bandwidth information and the service bandwidth information may be determined. Determine the service bandwidth information that the microwave link is assigned to each service connection.
  • the service bandwidth information may be sent by the network node connected by the microwave link through a bandwidth notification message, and the bandwidth notification message may be an AIS: Alarm Indication Signal/Suppression message or an APS (Automatic Protection Switching) message or a new message.
  • Operational Administration (0AM: Operations, Administration, and Maintenance) message.
  • the service bandwidth information allocated to the service connection may be sent to the endpoint of the service connection where the microwave link is located by using the AIS message, where the existing AIS message cannot carry the allocated service bandwidth. Information, so the existing AIS message can be extended to enable the extended AIS message to carry the allocated service bandwidth information.
  • the service bandwidth information allocated to the service connection may also be sent to the endpoint of the service connection where the ⁇ wave link is located through the APS message, where the existing APS message cannot carry the assignment.
  • the service bandwidth information can be extended to the existing APS message, so that the extended APS message can carry the allocated service bandwidth information.
  • the allocated service bandwidth information may also be sent by using a new 0AM message, and the new 0AM message may be a newly defined 0AM message, or may be extended after other existing 0AM messages. Message.
  • the network node connected by the microwave link in this embodiment can acquire the chain of the microwave link.
  • the current bandwidth information of the path, and according to the correspondence between the link bandwidth information and the service bandwidth information, when determining the current bandwidth information of the link, the service bandwidth information of the service connection where the microwave link is allocated to the microwave link will be
  • the allocated service bandwidth information is sent to the endpoint of the service connection, so that the service connection endpoint can adjust the service policy according to the allocated service bandwidth information, so that the bandwidth of the microwave link can meet the service requirement and avoid service congestion.
  • FIG. 2 is a flowchart of a second embodiment of a bandwidth information notification method.
  • the embodiment describes a processing flow of a network node connected by a microwave link, including:
  • the link optimal bandwidth information is the bandwidth information of the microwave link in the optimal modulation mode.
  • the network node connected to the microwave link in this embodiment can obtain the current bandwidth information of the link of the microwave link, and determine the current bandwidth information of the link according to the correspondence between the link bandwidth information and the service bandwidth information.
  • the microwave link is allocated to the service bandwidth information of the service connection where the microwave link is located, the allocated service bandwidth information is sent to the service connection endpoint, so that the service connection endpoint can perform the service policy according to the allocated service bandwidth information. Adjusted so that the bandwidth of the microwave link can meet the needs of the service and avoid service congestion.
  • the connected network node only allocates and transmits the current bandwidth information of the link when the current bandwidth information of the link of the microwave link is lower than the link optimal bandwidth information, and the microwave link is allocated to the microwave link.
  • the service bandwidth information of the service connection so if the current bandwidth information of the link of the microwave link is the link optimal bandwidth information, the transmission of the allocated service bandwidth information to the endpoint of the service connection where the microwave link is located may be stopped.
  • the endpoints of the service connection can reduce the processing capacity of the network node connected to the microwave link, and ensure that the microwave link resources are fully utilized.
  • FIG. 3 is a flowchart of a third embodiment of a bandwidth information notification method.
  • the embodiment describes a processing procedure of a network node connected by a microwave link, including:
  • the service optimal bandwidth information is the service bandwidth information allocated by the microwave link for the service connection when the optimal link bandwidth information is used.
  • the network node connected to the link can obtain the current bandwidth information of the link of the link, and determine the current bandwidth information of the link according to the correspondence between the link bandwidth information and the service bandwidth information.
  • the microwave link is allocated to the service bandwidth information of the service connection where the microwave link is located, the allocated service bandwidth information is sent to the service connection endpoint, so that the service connection is The service provider can adjust the service policy according to the allocated service bandwidth information, so that the bandwidth of the microwave link can meet the requirements of the service and avoid service congestion.
  • the service bandwidth information allocated by the microwave link to the service connection is lower than the service optimal.
  • the allocated service bandwidth information is sent only when the bandwidth information is available. Therefore, if the service bandwidth information allocated to the service connection of the service link is the service optimal bandwidth information when the current bandwidth information of the link is connected, the allocated service bandwidth information may be stopped from being sent to the endpoint of the service connection where the microwave link is located.
  • the network node processing capacity of the microwave link connection can be reduced, and the microwave link resources can be fully utilized.
  • FIG. 4 illustrates a flow of an embodiment of a service processing method, which describes a processing flow of an endpoint of a service connection in which a microwave link is located, including:
  • the allocated service bandwidth information is determined by a network node connected by a microwave link according to a correspondence between link bandwidth information and service bandwidth information, where the allocated service bandwidth is The information is the service bandwidth information that the microwave link is assigned to the service connection when the current bandwidth information of the link is.
  • the allocated service bandwidth information may be periodically or aperiodically terminated by the network node connected by the microwave link when the link current bandwidth information of the microwave link is lower than the link optimal bandwidth information. Send it.
  • the service policy corresponding to the allocated service bandwidth information is determined according to the correspondence between the preset service bandwidth information and the service policy.
  • the corresponding relationship between the service bandwidth information and the service policy may be preset, so that after receiving the service bandwidth information allocated for the service connection, the service policy corresponding to the allocated service bandwidth information may be determined.
  • the service policy may be a QoS (Qua ration of Service) policy, an access control policy, or a service switching policy.
  • the correspondence between the service bandwidth information and the QoS policy may be preset, so that after the allocated service bandwidth information is received, the allocated and allocated The QoS policy corresponding to the service bandwidth information, and then the service processing according to the determined QoS policy.
  • the endpoint of the service connection may preset a correspondence between the service bandwidth information and the service buffer waterline. For example, when the bandwidth of the microwave link is large, a large service buffer may be set in the microwave chain. When the bandwidth of the road is small, a smaller traffic buffer can be set.
  • the service connection endpoint adjusts the watermark to the location corresponding to the bandwidth indicated by the allocated service bandwidth information, thereby adjusting the size of the service buffer to implement the QoS policy. Adjustment.
  • the correspondence between the service bandwidth information and the service switching policy may be preset, so that after receiving the allocated service bandwidth information, the service switching corresponding to the allocated service bandwidth information may be determined.
  • the policy then switches the service to the protection path according to the determined service switching policy. According to different service switching policies, the service may be partially or completely switched to the protection path.
  • the multiple different allocated service bandwidth information may correspond to multiple different bandwidths, and the allocated service bandwidth with the smallest bandwidth may be selected. information.
  • the service processing may be performed according to the QoS policy corresponding to the allocated service bandwidth information, or the access control policy corresponding to the service bandwidth information, or the service switching policy corresponding to the service bandwidth information.
  • the endpoint of the service connection in which the microwave link is located can receive the service bandwidth information that is sent by the network node connected to the microwave link and is allocated for the service connection, and adjust the service policy according to the allocated service bandwidth information, thereby Enable the bandwidth of the microwave link to meet the requirements of the service and avoid service congestion.
  • the network node connected to the microwave link transmits the service connection connection to the service connection endpoint only when the current bandwidth information of the link of the microwave link is lower than the link optimal bandwidth information.
  • Service bandwidth information so if the endpoint of the service connection where the microwave link is located does not receive the allocated service bandwidth information within the preset time, the chain of the microwave link can be considered.
  • the current bandwidth information of the path is the optimal bandwidth information of the link, that is, the allocated service bandwidth information is the optimal bandwidth information of the service, which can reduce the processing capacity of the network node connected by the microwave link, thereby using normal service policies for service processing and ensuring the microwave chain.
  • Road resources are fully utilized.
  • the normal service policy may be a normal QoS policy, a normal access control policy, or a normal service switching policy. When the service policy is a normal service switching policy, the service is switched from the protection path to the working path.
  • the network node connected to the microwave link when the service bandwidth information of the service link that is allocated to the service connection is lower than the service optimal bandwidth information when the current link information of the link is connected, the network node connected to the microwave link will send the service to the service.
  • the connected endpoint sends the allocated service bandwidth information. Therefore, if the endpoint of the service connection where the microwave link is located does not receive the allocated service bandwidth information within the preset time, the microwave link can be considered as the link current bandwidth information.
  • the service bandwidth information allocated to the service connection is the service optimal bandwidth information, so that the normal service policy is used for service processing, which can reduce the processing capacity of the network node connected by the microwave link, and ensure that the microwave link resources are fully utilized.
  • the normal service policy may be a normal QoS policy, a normal access control policy, or a normal service switching policy. When the service policy is a normal service switching policy, the service is switched from the protection path to the working path.
  • FIG. 5 illustrates a topology of a network connection in the fourth embodiment of the bandwidth information notification method.
  • the first service connection 501 passes.
  • the microwave link 503 between the network node C and the network node D is adopted.
  • the optimal bandwidth of the link is 1 Gbps
  • the optimal bandwidths allocated to the first service connection 501 and the second service connection 502 are 500 Mbps and 300 Mbps, respectively.
  • the modulation mode is reduced to the 16QAM modulation mode
  • the link bandwidth of the microwave link 503 is reduced to 0.6 Gbps.
  • the microwave link is determined according to the correspondence between the link bandwidth information and the service bandwidth information.
  • the first service bandwidth allocated to the first service connection 501 by the 503 is 200 Mbps
  • the second service bandwidth allocated by the microwave link 503 to the second service connection 502 is 150 Mbps.
  • the network node C and the network node D send the first AIS message on the first service connection 501 when the bandwidth allocated by the microwave link 503 to the first service connection 501 and the second service connection 502 is lower than the service optimal bandwidth.
  • a service bandwidth information, where the second AIS message carries the second bandwidth information that the microwave link is assigned to the second service connection 502 in the current modulation mode.
  • the network node C may send a first AIS message to the network node A and/or the network node F, and the network node C may send a second AIS message to the network node G and/or the network node F; the network node D may go to the network Node A and/or network node F sends a first AIS message, and network node D can send a second AIS message to network node G and/or network node F.
  • the network node connected by the microwave link may carry the first service bandwidth information and the second service bandwidth information through the AIS message, and may also carry the first service bandwidth information and the other information through other specific types of messages.
  • Two service bandwidth information, such as APS messages or new 0AM messages, AIS messages and other specific types of messages are uniformly understood as bandwidth notification messages.
  • the processing of the first service connection 501 is described as an example.
  • the process of processing the second service connection 502 is similar to the process of the first service connection 501, and details are not described herein.
  • the extension carries a link bandwidth type length value (l ink bandwidth TLV: 1 ink bandwidth Type-Length-Va lue ) object, and the 1 ink bandwidth TLV object carries the microwave link in the current bandwidth information of the link.
  • the first service bandwidth information that is allocated to the first service connection 501, where the first service bandwidth information may be a specific bandwidth value, or may be a band Wide level indication.
  • the service policy adjustment may be performed according to the allocated first service bandwidth information.
  • a specific implementation manner may be: configuring, on the network node A and the network node F, a correspondence between the first service bandwidth information of the first service connection 501 and the QoS policy of the first service connection, when the network node A And when the network node F receives the first service bandwidth information of the first service connection 501, the QoS policy corresponding to the first service bandwidth information is enabled, so that the network node A and the network node F are at the entrance of the first service connection 501. Control the service to avoid congestion when the service passes through the microwave link.
  • Another specific implementation manner may be: configuring the correspondence between the first service bandwidth information of the first service connection 501 and the service switching policy on the network node A and the network node F, when the network node A and the network node F receive When the first service bandwidth information is allocated to the first service connection 501, the service switching policy corresponding to the first service bandwidth information is enabled, and part or all of the services are switched to the protection path.
  • the network node C and the network node D stop transmitting the first AIS message.
  • the service process can be performed using the normal service policy.
  • the network node connected to the microwave link in this embodiment can obtain the current bandwidth information of the link of the microwave link, and determine the current bandwidth information of the link according to the correspondence between the link bandwidth information and the service bandwidth information.
  • the microwave link is allocated to the service bandwidth information of the service connection where the microwave link is located, and the allocated service bandwidth information is sent to the service connection endpoint, so that the service connection endpoint can perform the service according to the allocated service bandwidth information.
  • the policy is adjusted so that the bandwidth of the microwave link can meet the requirements of the service and avoid service congestion.
  • the microwave link 503 if the microwave link 503 The modulation mode is reduced to the 16QAM modulation mode, and the link bandwidth of the microwave link 503 is reduced to 0.6 Gbps. According to the correspondence between the link bandwidth information and the service bandwidth information, it is determined that the microwave link 503 is allocated to the first service connection.
  • the first service bandwidth of the 501 is 500 Mbps
  • the second service bandwidth allocated by the microwave link 503 to the second service connection 502 is 50 Mbps, that is, the first service bandwidth allocated for the first service connection 501 is still the optimal bandwidth of the service.
  • the network node C may not send the first AIS message to the network node A and/or the network node F, nor may the network node D send the first AIS message to the network node A and/or the network node F.
  • the fifth embodiment of the bandwidth information notification method provided by the embodiment of the present invention is described by taking the scenario described in FIG. 5 as an example.
  • the first service connection 501 passes through the network node A, the network node, and the network node (the network).
  • Node D, network node E and network node F, second service connection 502 through network node, network node 11, network node ⁇ network node (, network node D, network node E and network node F, wherein network node C and network
  • the link between the nodes D is the microwave link 503, the network node A and the network node F are the endpoints of the first service connection 501, and the network node G and the network node F are the endpoints of the second service connection 502.
  • the connection 501 and the second service connection 502 may specifically be LSPs.
  • the network node (the microwave link 503 between the network nodes D adopts the 64QAM modulation mode, the link optimal bandwidth is 1 Gbps, and the service allocated to the first service connection 501 and the second service connection 502 is optimal.
  • the bandwidth is 500 Mbps and 300 Mbps respectively.
  • the network node C and the network node D acquire the current bandwidth information of the link of the microwave link 503 in real time, and periodically pass the first service connection 501 to the network node A and/or the network node F according to the normal period.
  • Sending a first bandwidth notification message where the first bandwidth notification message carries the first service bandwidth information that is allocated to the first service connection 501 when the microwave link is in the current bandwidth information of the link; and periodically connects through the second service according to the normal period.
  • 502 sends a second bandwidth notification message to the network node G and/or the network node F, where the second bandwidth notification message carries the second service bandwidth information that is allocated to the second service connection 502 when the microwave link is in the current bandwidth information of the link.
  • a l ink bandwidth TLV object may be carried, and a microwave link is allocated in the l ink bandwidth TLV object.
  • the service bandwidth information may be a specific bandwidth value or a bandwidth level indication.
  • the modulation of the microwave link 503 is reduced to the 16QAM modulation mode, and the link bandwidth of the microwave link 503 is reduced to 0.6 Gbps, according to the correspondence between the link bandwidth information and the service bandwidth information.
  • determining the microwave link 503 is allocated to a first service connection 501 is a first service bandwidth 200Mbps
  • microwave link 503 is allocated to a second service connection 502 is a second service bandwidth 150Mbps 0
  • the processing of the second service connection 502 is described as an example.
  • the process of processing the first service connection 501 is similar to the process of the second service connection 502, and details are not described herein.
  • the network node C and the network node D use the faster frequency to the network node G and on the second service connection 502 when the second service bandwidth of the microwave link 503 that is currently allocated to the second service connection 502 is lower than the service optimal bandwidth.
  • / or the network node F sends a few frames of the second bandwidth notification message to advertise the service bandwidth change as soon as possible, and then sends the second bandwidth notification message in the normal cycle. For example, when the second bandwidth notification message is normally sent in a period of 1 second, and the second service bandwidth is changed, the second bandwidth notification message of the first three frames is sent in a period of 10 milliseconds, and the subsequent second bandwidth notification message is restored to It is sent in a cycle of 1 second.
  • the network node G and/or the network node F receives the allocated service bandwidth information, and the allocated service bandwidth information is the second service bandwidth information that is allocated to the second service connection 502 when the microwave link is in the current bandwidth information of the link.
  • the node G and/or the network node F can perform service policy adjustment according to the second service bandwidth information.
  • a specific implementation manner may be: configuring a correspondence between the second service bandwidth information and the service connection QoS policy on the network node G and the network node F, when the network node G and the network node F receive the microwave link
  • the QoS policy corresponding to the second service bandwidth information is enabled, thereby controlling service access at the service connection entrance (network node G and network node F) In order to avoid congestion when the service passes through the microwave link.
  • Another specific implementation manner may be that the second node is configured on the network node A and the network node F. Corresponding relationship between the service bandwidth information and the service switching policy.
  • the network node A and the network node F receive the second service bandwidth information of the microwave link in the current modulation mode, the service corresponding to the second service bandwidth information is enabled.
  • the switching policy converts some or all of the services to the protection path.
  • the network node connected to the microwave link in this embodiment can obtain the current bandwidth information of the link of the microwave link, and determine the current bandwidth information of the link according to the correspondence between the link bandwidth information and the service bandwidth information.
  • the radio link is allocated to the service bandwidth information of the service connection where the microwave link is located, and the allocated service bandwidth information is sent to the service connection endpoint, so that the service connection endpoint can perform the service bandwidth information according to the allocated service bandwidth information.
  • the service policy is adjusted so that the bandwidth of the microwave link can meet the requirements of the service and avoid service congestion.
  • the sixth embodiment of the bandwidth information notification method provided by the embodiment of the present invention is as follows. As shown in FIG. 6, there are three end-to-end service connections, which are the first service connection 601 and the second.
  • the first service connection 601 passes through the network node A, the network node 13, the network node C and the network node D, and the third service connection passes through the network node A, the network node ⁇ the network node 11, the network node I and the network node J, wherein the network node
  • the link between A and the network node B is a microwave link 604, the first service connection 601 and the third service connection 603 pass through the microwave link 604; the second service connection 602 passes through the network node A, the network node E, and the network node F. , network node G and network node D.
  • the microwave link 604 adopts a 64QAM modulation mode, the bandwidth is 1 Gbps, and the service bandwidths allocated to the first service connection 601 and the third service connection 603 are 400 Mbps and 300 Mbps, respectively.
  • the rain mode is as follows, the modulation mode is reduced to the 16QAM modulation mode, and the bandwidth is reduced to 0.6 Gbps. According to the correspondence between the link bandwidth information and the service bandwidth information, it is determined that the microwave link 604 is allocated to the first service.
  • a first connector 601 is service bandwidth 200Mbps
  • microwave link 604 is allocated to the third service connection 603 is a second service bandwidth 160Mbps 0 following a first service connection to a second service connection 602 and 601 will be specifically described using as an example APS To make bandwidth notifications.
  • the network node A knows that the service bandwidth allocated to the first service connection 601 is lower than the service optimal bandwidth
  • the network node A carries the current microwave link to be allocated to the first service in the APS message sent by the protection path 602.
  • the first service bandwidth information of the connection 601. If there is another microwave link on the second service connection 602, the second service bandwidth information that the other microwave link is allocated to the second service connection 602 may also be carried in the APS message.
  • the network node A may also use the current first service bandwidth information of the first service connection 601 and/or the second service bandwidth information of the second service connection 602, based on the previously configured switching rules.
  • the traffic from the network node A to the network node D in the bearer of the first service connection 601 is completely or partially switched to the second service connection 602.
  • the bandwidth information may be a specific bandwidth value or a bandwidth level indication.
  • the configured switching rule reverses all or part of the traffic from the network node D to the network node A in the bearer of the first service connection 601 to the second service connection 602.
  • the service bandwidth information that is allocated in the APS message is not included in the service bandwidth of the service connection, and may also be in the APS message that is periodically sent.
  • the network node connected to the microwave link in this embodiment can obtain the current bandwidth information of the link of the microwave link, and determine the current bandwidth information of the link according to the correspondence between the link bandwidth information and the service bandwidth information.
  • the microwave link is allocated to the service bandwidth information of the service connection where the microwave link is located, and the allocated service bandwidth information is sent to the service connection endpoint, so that the service connection endpoint can perform the service according to the allocated service bandwidth information.
  • the policy is adjusted so that the bandwidth of the microwave link can meet the requirements of the service and avoid service congestion.
  • FIG. 7 illustrates the structure of Embodiment 1 of the network node, including:
  • the obtaining unit 701 is configured to obtain current link information of a link of the microwave link.
  • the current bandwidth information of the link for obtaining the microwave link may be detected or periodically detected in real time.
  • the obtaining unit 701 may include: a modulation mode detecting unit 7011, configured to detect a current modulation mode of the microwave link; and a bandwidth information acquiring unit
  • the determining unit 702 is configured to determine, according to the correspondence between the link bandwidth information and the service bandwidth information, when the current bandwidth information of the link acquired by the obtaining unit 701, the microwave link is allocated to the service where the microwave link is located. Connected service bandwidth information;
  • the sending unit 703 is configured to send the service bandwidth information determined by the determining unit 702 to the service connection by using the service connection, so that the service connected endpoint performs the service policy adjustment according to the allocated service bandwidth information.
  • the network node can obtain the current bandwidth information of the link of the microwave link, and determine the current bandwidth information of the link according to the correspondence between the link bandwidth information and the service bandwidth information.
  • the service bandwidth information that is allocated to the service connection where the microwave link is located, and the allocated service bandwidth information is sent to the endpoint of the service connection, so that the service connection endpoint can perform service policy adjustment according to the allocated service bandwidth information, thereby making the microwave.
  • the bandwidth of the link can meet the needs of the service and avoid traffic congestion.
  • Figure 8 depicts the structure of the second embodiment of the network node, including:
  • the obtaining unit 801 is configured to obtain current link information of a link of the microwave link.
  • the link determining unit 802 is configured to determine whether the current bandwidth information of the link acquired by the acquiring unit 801 is Below the link optimal bandwidth information;
  • the determining unit 803 is configured to determine, according to the correspondence between the link bandwidth information and the service bandwidth information, that the link determining unit 802 determines that the link current bandwidth information is lower than the link optimal bandwidth information, and obtains the acquired by the acquiring unit 801.
  • the microwave link is allocated to the service bandwidth information of the service connection where the microwave link is located.
  • the sending unit 804 is configured to send the service bandwidth information determined by the determining unit 803 to the service connection by using the service connection, so that the service connected endpoint performs the service policy adjustment according to the allocated service bandwidth information.
  • the determining unit 803 when the link determining unit 802 determines that the current bandwidth information of the link acquired by the obtaining unit 801 is the link optimal bandwidth information, the determining unit 803 does not determine the microwave chain when the current bandwidth information of the link is obtained.
  • the traffic is allocated to the service bandwidth information of the service connection where the microwave link is located, so that the sending unit 804 stops sending the allocated service bandwidth information to the endpoint of the service connection where the microwave link is located, so that the service connection endpoint is used.
  • the normal business strategy is for business processing.
  • the network node can obtain the current bandwidth information of the link of the microwave link, and determine the current bandwidth information of the link according to the correspondence between the link bandwidth information and the service bandwidth information.
  • the service bandwidth information that is allocated to the service connection where the microwave link is located, and the allocated service bandwidth information is sent to the endpoint of the service connection, so that the service connection endpoint can perform service policy adjustment according to the allocated service bandwidth information, thereby making the microwave.
  • the bandwidth of the link can meet the needs of the service and avoid traffic congestion.
  • Figure 9 depicts the structure of the third embodiment of the network node, including:
  • the obtaining unit 901 is configured to acquire current link information of a link of the microwave link.
  • the determining unit 902 is configured to determine, according to the correspondence between the link bandwidth information and the service bandwidth information, when the current bandwidth information of the link acquired by the obtaining unit 901, the microwave link is allocated to the service where the microwave link is located. Connected service bandwidth information;
  • the service determining unit 903 is configured to determine, by the determining unit 902, whether the service bandwidth information allocated for the service connection is lower than the service optimal bandwidth information;
  • the sending unit 904 is configured to: when the service determining unit 903 determines that the allocated service bandwidth information is lower than the service optimal bandwidth information, send the allocated service bandwidth information to the service connected endpoint by using the service connection.
  • the sending unit 904 stops sending to the endpoint of the service connection where the microwave link is located.
  • the service bandwidth information is allocated so that the endpoints of the service connection use the normal service policy for service processing.
  • the network node can obtain the current bandwidth information of the link of the microwave link, and determine the current bandwidth information of the link according to the correspondence between the link bandwidth information and the service bandwidth information.
  • the service bandwidth information that is allocated to the service connection where the microwave link is located, and the allocated service bandwidth information is sent to the endpoint of the service connection, so that the endpoint of the service connection can perform the service policy adjustment according to the allocated service bandwidth information, thereby
  • the bandwidth of the microwave link can meet the needs of the service and avoid service congestion.
  • Figure 10 depicts the structure of the fourth embodiment of the network node, including:
  • the receiving unit 1001 is configured to receive service bandwidth information allocated for the service connection, where the allocated service bandwidth information is determined by the network node connected by the microwave link according to the correspondence between the link bandwidth information and the service bandwidth information, where the allocated The service bandwidth information is the service bandwidth information that the microwave link is assigned to the service connection when the current bandwidth information of the link is used;
  • the determining unit 1002 is configured to determine, according to the correspondence between the preset service bandwidth information and the service policy, the service policy corresponding to the service bandwidth information that is received by the receiving unit 1001 for the service connection;
  • the processing unit 1003 is configured to perform service processing according to the service policy determined by the determining unit 1002.
  • the network node in the embodiment can receive the service bandwidth information that is sent by the network node connected to the microwave link and allocate the service bandwidth for the service connection, and adjust the service policy according to the allocated service bandwidth information, so that the bandwidth of the microwave link can be satisfied.
  • the embodiment of the present invention further provides a communication system, which includes the embodiment provided by the embodiment of the present invention.
  • Network node which includes the embodiment provided by the embodiment of the present invention.
  • the content is based on the same concept as the method embodiment of the present invention.
  • the description in the method embodiment of the present invention and details are not described herein again.
  • the storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), or a Random Acces s Memory (RAM).

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Description

带宽信息通知方法、 业务处理方法、 网络节点及通信系统 本申请要求了 2009年 8月 31 日提交的， 申请号为 200910172870.6, 发 明名称为 "带宽信息通知方法、 业务处理方法、 网络节点及通信系统，， 的中 国申请的优先权， 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域， 具体涉及带宽信息通知方法、 业务处理方法、 网络节点及通信系统。
背景技术
由于网际十办议（IP: Internet Protocol )业务的迅速增长， IP业务逐渐 取代时分复用 （TDM: Time Division Multiplexing )业务成为主流的业务类 型，网络流量也飞速增长。而传统的同步数字序列（ SDH: Synchronous Digital Hierarchy ) /多业务传输平台 (MSTP: Multi-Service Transport Platform) 设备无法很好地利用分组业务的统计复用特性， 另一方面也无法满足日益严 峻的带宽需求， SDH 设备开始被分组传输网络 （PTN: Packet Transport Network)设备所取代。
同时， 微波在运营商网络中有很广泛的应用， 目前应用较多的是 SDH微 波和伪同步数字序列 （PDH: Plesiochronous Digital Hierarchy )微波， 随 着 PTN设备取代 SDH设备， 而分组微波也相应地开始取代 SDH/PDH微波设备， 近些年来在市场上获得了大量应用。 其中， 分組微波是指分組设备使用微波 接口。 自适应调制 （AM: Adaptive Modulation), 从而导致带宽也发生变化， 而且 变化后的带宽是确定的。 传送网络通常需要很强的操作管理维护 （0AM: Operation, Administration and Management ) 能力, 但是目前的 PTN 0AM 功能只是一些通用性的操作。 在对现有技术的研究中， 发明人发现： 由于目前的 PTN 0AM功能只是一 些通用性的操作， 因此在微波链路进行自适应调制后分配给业务连接的带宽 信息不能通知给微波链路所处的业务连接的端点， 使业务连接的端点仍然以 自适应调制前的带宽进行业务流量控制， 导致业务拥塞。
发明内容
本发明实施例提供了带宽信息通知方法、 业务处理方法、 网络节点及通 信系统 , 使微波链路所处的业务连接的端点可以获得微波链路在链路当前带 宽信息时为业务连接分配的带宽信息。
本发明实施例提供了一种带宽信息通知方法， 包括：
获取链路的链路当前带宽信息；
根据链路带宽信息与经过所述链路的业务连接的业务带宽信息之间的对 应关系， 确定在所述链路当前带宽信息时， 所述链路被分配给所述链路所处 的业务连接的业务带宽信息；
通过所述业务连接向所述业务连接的端点发送分配的业务带宽信息， 以 使所述业务连接的端点根据所述分配的业务带宽信息进行业务策略调整。
本发明实施例还提供了一种业务处理方法， 包括：
接收为业务连接分配的业务带宽信息； 所述分配的业务带宽信息是由链 路连接的网络节点根据链路带宽信息与业务连接的业务带宽信息之间的对应 关系确定， 所述分配的业务带宽信息是在链路当前带宽信息时所述链路被分 配给所述业务连接的业务带宽信息；
才艮据预置的业务带宽信息与业务策略之间的对应关系， 确定所述分配的 业务带宽信息对应的业务策略；
根据确定的业务策略进行业务处理。
本发明实施例还提供了一种网络节点， 包括：
获取单元， 用于获取链路的链路当前带宽信息；
确定单元， 用于根据链路带宽信息与业务连接的业务带宽信息之间的对 应关系， 确定在所述获取单元获取的链路当前带宽信息时， 所述链路被分配 给所述链路所处的业务连接的业务带宽信息；
发送单元， 用于通过所述业务连接向所述业务连接的端点发送所述确定 单元确定的为所述业务连接分配的业务带宽信息， 以使所述业务连接的端点 根据所述分配的业务带宽信息进行业务策略调整。
本发明实施例还提供了一种网络节点， 包括：
接收单元， 用于接收为业务连接分配的业务带宽信息； 所述分配的业务 带宽信息是由链路连接的网络节点根据链路带宽信息与业务连接的业务带宽 信息之间的对应关系确定， 所述分配的业务带宽信息是在链路当前带宽信息 时所述链路被分配给所述业务连接的业务带宽信息；
确定单元， 用于根据预置的业务带宽信息与业务策略之间的对应关系， 确定所述接收单元接收的为所述业务连接分配的业务带宽信息对应的业务策 略；
处理单元， 用于4 据所述确定单元确定的业务策略进行业务处理。
本发明实施例还提供了一种通信系统 , 包括本发明实施例提供的网络节 点。
从上可知， 本实施例中微波链路连接的网络节点可以获取微波链路的链 路当前带宽信息， 并根据链路带宽信息与业务带宽信息之间的对应关系， 确 定在链路当前带宽信息时， 微波链路被分配给微波链路所处的业务连接的业 务带宽信息， 将分配的业务带宽信息发送给业务连接的端点， 使该业务连接 的端点可以根据该分配的业务带宽信息进行业务策略调整， 从而使微波链路 的带宽能够满足业务的需求， 避免出现业务拥塞。
附图说明
为了更清楚地说明本发明实施例的技术方案， 下面将对实施例描述中所 需要使用的附图作简单地介绍， 显而易见地， 下面描述中的附图仅仅是本发 明的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳动性的 前提下， 还可以根据这些附图获得其它的附图。
图 1为本发明实施例中带宽信息通知方法实施例一的流程图；
图 2为本发明实施例中带宽信息通知方法实施例二的流程图；
图 3为本发明实施例中带宽信息通知方法实施例三的流程图；
图 4为本发明实施例中业务处理方法实施例的流程图；
图 5 为本发明实施例中带宽信息通知方法实施例四和带宽信息通知方法 实施例五中端到端连接的拓朴图；
图 6 为本发明实施例中带宽信息通知方法实施例六中端到端连接的拓朴 图；
图 7为本发明实施例中网络节点实施例一的结构图；
图 8为本发明实施例中网络节点实施例二的结构图；
图 9为本发明实施例中网络节点实施例三的结构图；
图 10为本发明实施例中网络节点实施例四的结构图。
具体实施方式
下面将结合本发明实施例中的附图 , 对本发明实施例中的技术方案进行 清楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而 不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有作 出创造性劳动前提下所获得的所有其它实施例， 都属于本发明保护的范围。
先描述本发明实施例提供的带宽信息通知方法， 图 1 描述了带宽信息通 知方法实施例一的流程， 该实施例描述的是微波链路连接的网络节点的处理 流程， 包括：
101、 获取微波链路的链路当前带宽信息。 息， 例如可以由网络节点的自适应调制模块获取微波链路的链路当前带宽信 息。
本发明的一个实施例可以通过如下方式主动的获取微波链路的链路当前 带宽信息： 检测微波链路的当前调制方式， 获取微波链路在当前调制方式下 的带宽信息， 微波链路在当前调制方式下的带宽信息即为微波链路的链路当 前带宽信息。
由于微波链路在不同调制方式下的带宽不同， 并且微波链路在各个调制 方式下的带宽是确定的， 因此在确定了微波链路的当前调制方式时就可以获 取到相应的带宽信息。 获取的带宽信息可以是带宽等级指示信息或调制模式 信息等。
例如， ί波链路的最优调制方式是 64 正交幅度调制 （QAM: Quadrature Ampl i tude Modulat ion )调制方式， 该调制方式下链路带宽是 lGbps ; 调制方 式为 16QAM调制方式时， 链路带宽是 0. 6Gbps ; 则在 64 QAM调制方式时， 带 宽等级指示信息可以是 lGbps ; 在 16 QAM调制方式时， 带宽等级指示信息可 以是 0. 6Gbps ; 在 64 QAM调制方式时， 调制模式信息可以是 64QAM调制方式； 在 16 QAM调制方式时， 调制模式信息可以是 16QAM调制方式。 其中， 在本发 明的一个实施例中， 带宽等级指示信息还可以不是具体的带宽值， 而是代表 带宽值的数字， 如 7代表 lGbps , 5代表 0. 6Gbps等， 则在 64 QAM调制方式 时， 带宽等级指示信息可以是 7; 在 16 QAM调制方式时， 带宽等级指示信息 可以是 5; 具体哪个数字代表哪个带宽值可以根据需要进行配置。
102、 根据链路带宽信息与业务带宽信息之间的对应关系， 确定在所述链 路当前带宽信息时， 所述微波链路被分配给所述微波链路所处的业务连接的 业务带宽信息。
微波链路是业务连接经过的多段链路的其中一段， 即该业务连接有至少 两个网络节点之间的链路是微波链路。 该业务连接可以是以太网连接， 如虚 拟局域网 （VLAN: Vi rtua l Loca l Area Network )连接、 运营商骨干桥接- 流量工程以太网交换路径 （ PBB- TE ESP : Provider Backbone Br idge Traff ic Engineer ing Ethernet Swi tch Path )连接等； 该业务连接可以是 标签交换路径（LSP: Label Swi tched Path )连接， 具体地可以是多协议标 签交换标 i己交换路径 （MPLS LSP: Multi Protocol Label Switch Label Switched Path)连接等非以太网连接。
一个微波链路上可以承载一条或多条业务连接， 每条业务连接会占用微 波链路的全部或部分链路带宽。 微波链路的所连接的网络节点维护分配给各 条业务连接的业务带宽信息， 当微波链路的带宽发生变化时， 可以根据预先 设定的链路带宽信息与业务带宽信息之间的对应关系， 确定微波链路被分配 给各条业务连接的业务带宽信息。
103、 通过所述业务连接向所述业务连接的端点发送分配的业务带宽信 息， 以使业务连接的端点根据所述分配的业务带宽信息进行业务策略调整。
业务带宽信息可以由微波链路连接的网络节点通过带宽通知消息发送， 带宽通知消 息可以是告警指示抑制 （ AIS： Alarm Indication Signal/Suppression ) 消息或自动保护倒换 ( APS: Automatic Protection Switching ) 消息或新的操作管理维护 ( 0AM: Operations, Administration, and Maintenance ) 消息。
在本发明的一个实施例中， 可以通过 AIS 消息向微波链路所处的业务连 接的端点发送分配给该业务连接的业务带宽信息， 其中， 由于现有的 AIS 消 息并不能携带分配的业务带宽信息， 因此可以对现有的 AIS 消息进行扩展， 使扩展后的 AIS消息能够携带分配的业务带宽信息。
在本发明的另一个实施例中， 也可以通过 APS 消息向 ί波链路所处的业 务连接的端点发送分配给该业务连接的业务带宽信息， 其中， 由于现有的 APS 消息并不能携带分配的业务带宽信息， 因此可以对现有的 APS消息进行扩展， 使扩展后的 APS消息能够携带分配的业务带宽信息。
在本发明的另一个实施例中， 也可以通过新的 0AM消息发送分配的业务 带宽信息， 该新的 0AM消息可以是新定义的 0AM消息， 也可以是对其它现有 的 0AM消息进行扩展后的消息。
从上可知， 本实施例中微波链路连接的网络节点可以获取微波链路的链 路当前带宽信息， 并根据链路带宽信息与业务带宽信息之间的对应关系， 确 定在链路当前带宽信息时 , 微波链路被分配给微波链路所处的业务连接的业 务带宽信息， 将分配的业务带宽信息发送给业务连接的端点， 使业务连接的 端点可以根据该分配的业务带宽信息进行业务策略调整， 从而使微波链路的 带宽能够满足业务的需求， 避免出现业务拥塞。
图 2描述了带宽信息通知方法实施例二的流程， 该实施例描述的是微波 链路连接的网络节点的处理流程， 包括：
201、 获取微波链路的链路当前带宽信息。
具体可以参照 101执行。
202、 判断所述链路当前带宽信息是否低于链路最优带宽信息； 如果是， 进入 203; 如果否， 进入 201。
链路最优带宽信息是微波链路在最优调制方式下的带宽信息。
203、 根据链路带宽信息与业务带宽信息之间的对应关系， 确定在所述链 路当前带宽信息时 , 所述微波链路被分配给所述微波链路所处的业务连接的 业务带宽信息。
具体可以参照 102执行。
204、 通过所述业务连接向所述业务连接的端点发送分配的业务带宽信 息， 以使业务连接的端点根据所述分配的业务带宽信息进行业务策略调整。
具体可以参照 103执行。
从上可知， 本实施例中微波链路连接的网络节点可以获取微波链路的链 路当前带宽信息， 并根据链路带宽信息与业务带宽信息之间的对应关系， 确 定在链路当前带宽信息时 , 微波链路被分配给微波链路所处的业务连接的业 务带宽信息， 将分配的业务带宽信息发送给业务连接的端点， 使业务连接的 端点可以根据该分配的业务带宽信息进行业务策略调整， 从而使微波链路的 带宽能够满足业务的需求， 避免出现业务拥塞。
在本发明实施例提供的带宽信息通知方法实施例二中， 由于微波链路连 接的网络节点仅在获取到微波链路的链路当前带宽信息低于链路最优带宽信 息时， 才会确定并发送在链路当前带宽信息时， 微波链路被分配给微波链路 所处的业务连接的业务带宽信息， 因此如果微波链路的链路当前带宽信息为 链路最优带宽信息 , 则可以停止向微波链路所处的业务连接的端点发送分配 的业务带宽信息， 以使业务连接的端点使用正常业务策略进行业务处理， 可 以减少微波链路连接的网络节点处理量， 确保微波链路资源得到充分的利用。
图 3描述了带宽信息通知方法实施例三的流程， 该实施例描述的是微波 链路连接的网络节点的处理流程， 包括：
301、 获取微波链路的链路当前带宽信息。
具体可以参照 101执行。
302、 根据链路带宽信息与业务带宽信息之间的对应关系， 确定在所述链 路当前带宽信息时 , 所述微波链路被分配给所述微波链路所处的业务连接的 业务带宽信息。
具体可以参照 102执行。
303、 判断分配的业务带宽信息是否低于业务最优带宽信息； 如果是， 进 入 304; 如果否， 进入 301。
业务最优带宽信息是在最优链路带宽信息时， 微波链路为业务连接分配 的业务带宽信息。
304、 通过所述业务连接向所述业务连接的端点发送所述分配的业务带宽 信息， 以使所述业务连接的端点根据所述分配的业务带宽信息进行业务策略 调整。
具体可以参照 103执行。
从上可知， 本实施例中 波链路连接的网络节点可以获取 波链路的链 路当前带宽信息， 并根据链路带宽信息与业务带宽信息之间的对应关系， 确 定在链路当前带宽信息时， 微波链路被分配给微波链路所处的业务连接的业 务带宽信息， 将分配的业务带宽信息发送给业务连接的端点， 使业务连接的 端点可以根据该分配的业务带宽信息进行业务策略调整， 从而使微波链路的 带宽能够满足业务的需求， 避免出现业务拥塞。
在本发明实施例提供的带宽信息通知方法实施例三中， 由于微波链路连 接的网络节点仅在链路当前带宽信息时 , 微波链路被分配给业务连接的业务 带宽信息低于业务最优带宽信息时， 才会发送分配的业务带宽信息。 因此如 果在链路当前带宽信息时， 微波链路被分配给业务连接的业务带宽信息为业 务最优带宽信息， 则可以停止向微波链路所处的业务连接的端点发送分配的 业务带宽信息， 以使业务连接的端点使用正常业务策略进行业务处理， 可以 减少微波链路连接的网络节点处理量， 确保微波链路资源得到充分的利用。
图 4描述了业务处理方法实施例的流程， 该实施例描述的是微波链路所 处的业务连接的端点的处理流程， 包括：
401、 接收为业务连接分配的业务带宽信息； 所述分配的业务带宽信息是 由微波链路连接的网络节点根据链路带宽信息与业务带宽信息之间的对应关 系确定 , 所述分配的业务带宽信息是在链路当前带宽信息时所述微波链路被 分配给所述业务连接的业务带宽信息。
在本发明的一个实施例中 , 分配的业务带宽信息可以由微波链路连接的 网络节点在微波链路的链路当前带宽信息低于链路最优带宽信息时， 周期性 地或非周期性地发送。
402、 才艮据预置的业务带宽信息与业务策略之间的对应关系， 确定所述分 配的业务带宽信息对应的业务策略。
其中， 可以预置业务带宽信息与业务策略之间的对应关系， 从而在接收 了为业务连接分配的业务带宽信息后， 就可以确定分配的业务带宽信息对应 的业务策略。 业务策略具体可以是月良务质量（QoS: Qua l i ty of Service )策 略、 或接入控制策略、 或业务倒换策略等。
例如， 在本发明的一个实施例中， 可以预置业务带宽信息与 QoS策略之 间的对应关系， 从而在接收了分配的业务带宽信息后， 就可以确定与分配的 业务带宽信息对应的 QoS策略， 进而根据确定的 QoS策略进行业务处理。 具 体地， 业务连接的端点可以预置业务带宽信息与业务緩冲区水线之间的对应 关系， 例如， 微波链路的带宽较大时， 可以设置较大的业务緩冲区， 在微波 链路的带宽较小时， 可以设置较小的业务緩冲区。 则业务连接的端点在接收 了分配的业务带宽信息后， 将水线调整到该分配的业务带宽信息所表示的带 宽大小对应的位置， 从而对业务緩冲区的大小进行调整， 实现 QoS 策略的调 整。
在本发明的另一个实施例中， 可以预置业务带宽信息与业务倒换策略之 间的对应关系， 从而在接收了分配的业务带宽信息后， 就可以确定与分配的 业务带宽信息对应的业务倒换策略， 进而根据确定的业务倒换策略将业务倒 换到保护路径， 其中根据业务倒换策略的不同， 可能会将业务部分或全部切 换到保护路径。
值得说明的是， 如果接收到多个不同的分配的业务带宽信息， 该多个不 同的分配的业务带宽信息会对应多个不同的带宽， 此时可以选择其中对应的 带宽最小的分配的业务带宽信息。
403、 根据确定的业务策略进行业务处理。
具体地， 可以根据分配的业务带宽信息对应的 QoS策略、 或业务带宽信 息对应的接入控制策略、 或业务带宽信息对应的业务倒换策略进行业务处理。
从上可知， 本实施例中微波链路所处的业务连接的端点可以接收微波链 路连接的网络节点发送的为业务连接分配的业务带宽信息， 根据分配的业务 带宽信息进行业务策略调整， 从而使微波链路的带宽能够满足业务的需求， 避免出现业务拥塞。
在本发明的一个实施例中 , 由于微波链路连接的网络节点仅在微波链路 的链路当前带宽信息低于链接最优带宽信息时， 才会向业务连接的端点并发 送为业务连接分配的业务带宽信息， 因此如果微波链路所处的业务连接的端 点在预置时间内没有接收到分配的业务带宽信息， 则可以认为微波链路的链 路当前带宽信息为链路最优带宽信息， 即分配的业务带宽信息为业务最优带 宽信息， 可以减少微波链路连接的网络节点处理量， 从而使用正常的业务策 略进行业务处理， 确保微波链路资源得到充分利用。 其中， 正常业务策略可 以是正常的 QoS策略、 或正常的接入控制策略、 或正常的业务倒换策略等， 在业务策略为正常的业务倒换策略时， 会将业务从保护路径切换回工作路径。
在本发明的另一个实施例中 , 由于微波链路在链路当前带宽信息时被分 配给业务连接的业务带宽信息低于业务最优带宽信息时， 微波链路连接的网 络节点才会向业务连接的端点并发送分配的业务带宽信息， 因此如果微波链 路所处的业务连接的端点在预置时间内没有接收到分配的业务带宽信息， 则 可以认为微波链路在链路当前带宽信息时被分配给业务连接的业务带宽信息 为业务最优带宽信息， 从而使用正常的业务策略进行业务处理， 可以减少微 波链路连接的网络节点处理量， 确保微波链路资源得到充分利用。 其中， 正 常业务策略可以是正常的 QoS 策略、 或正常的接入控制策略、 或正常的业务 倒换策略等， 在业务策略为正常的业务倒换策略时， 会将业务从保护路径切 换回工作路径。
如下以具体的实例描述本发明实施例中带宽信息通知方法实施例四： 图 5 描述了带宽信息通知方法实施例四中一个网络连接的拓朴， 如图 5 所示， 第一业务连接 501经过网络节点 A、 网络节点^ 网络节点（、 网络节 点 D、 网络节点 E和网络节点 F, 第二业务连接 502经过网络节点 G、 网络节 点 H、 网络节点^ 网络节点（、 网络节点 D、 网络节点 E和网络节点 F, 其中 网络节点 C和网络节点 D之间的链路为微波链路 503 ,网络节点 A和网络节点 F是第一业务连接 50 的端点， 网络节点 G和网络节点 F是第二业务连接 502 的端点 , 在一些实施例中 , 网络节点 C和网络节点 D之间的链路为微波链路， 但是本发明的原理可用于任何类型的通信链路， 例如是带宽可能发生变化的 卫星链路、 无源光网络链路、 数字用户线链路等。
假设在正常情况下， 网络节点 C、 网络节点 D之间的微波链路 503采用 64QAM调制方式， 链路最优带宽是 lGbps , 分配给第一业务连接 501和第二业 务连接 502的业务最优带宽分别是 500Mbps和 300Mbps。 当环境发生变化， 如 下雨等， 调制方式降为 16QAM调制方式， 微波链路 503 的链路带宽降低为 0. 6Gbps , 根据链路带宽信息与业务带宽信息之间的对应关系， 确定微波链路 503被分配给第一业务连接 501的第一业务带宽是 200Mbps , 微波链路 503被 分配给第二业务连接 502的第二业务带宽是 150Mbps。
网络节点 C和网络节点 D在微波链路 503当前被分配给第一业务连接 501 和第二业务连接 502的带宽低于业务最优带宽时， 在第一业务连接 501上发 送第一 AIS消息， 在第二业务连接 502上发送第二 AIS消息； 第一 AIS消息 和第二 AIS消息通过扩展， 其中第一 AIS消息携带了微波链路在当前调制方 式下被分配给第一业务连接 501的第一业务带宽信息， 第二 AIS消息携带了 微波链路在当前调制方式下被分配给第二业务连接 502 的第二带宽信息。 具 体地， 网络节点 C可以向网络节点 A和 /或网络节点 F发送第一 AI S消息， 网 络节点 C可以向网络节点 G和 /或网络节点 F发送第二 A I S消息； 网络节点 D 可以向网络节点 A和 /或网络节点 F发送第一 AIS消息， 网络节点 D可以向网 络节点 G和 /或网络节点 F发送第二 AIS消息。
值得说明的是， 本发明实施例中微波链路连接的网络节点可以通过 AIS 消息携带第一业务带宽信息和第二业务带宽信息， 也可以通过其它具体类型 的消息携带第一业务带宽信息和第二业务带宽信息， 如 APS 消息或新的 0AM 消息， AIS消息和其它具体类型的消息都统一被理解为带宽通知消息。
如下以对第一业务连接 501进行处理为例进行描述，对第二业务连接 502 进行处理的过程与对第一业务连接 501的处理过程类似， 不再赘述。
在第一 AIS 消息中扩展携带一个链接带宽类型长度值（l ink bandwidth TLV: 1 ink bandwidth Type-Length-Va lue )对象, 在 1 ink bandwidth TLV 对象中携带微波链路在链路当前带宽信息时被分配给第一业务连接 501 的第 一业务带宽信息， 第一业务带宽信息可以是具体的带宽值， 也可以是一种带 宽等级指示。
当网络节点 A和网络节点 F接收到微波链路在链路当前带宽信息时被分 配给第一业务连接 501 的第一业务带宽信息后， 可以根据分配的第一业务带 宽信息进行业务策略调整。
一种具体的实现方式可以是， 在网络节点 A和网络节点 F上配置好分配 第一业务连接 501的第一业务带宽信息与第一业务连接的 QoS策略之间的对 应关系， 当网络节点 A和网络节点 F接收到第一业务连接 501的第一业务带 宽信息时， 就启用与第一业务带宽信息对应的 QoS 策略， 从而在第一业务连 接 501的入口处（网络节点 A和网络节点 F )控制业务， 以此避免业务在经过 微波链路时出现拥塞情况。
另一种具体的实现方式可以是， 在网络节点 A和网络节点 F上配置第一 业务连接 501 的第一业务带宽信息与业务倒换策略之间的对应关系， 当网络 节点 A和网络节点 F接收到为第一业务连接 501分配的第一业务带宽信息时， 就启用与第一业务带宽信息对应的业务倒换策略， 将部分或全部业务倒换到 保护路径。
当环境好转， 微波链路恢复最优调制方式时， 网络节点 C和网络节点 D 停止发送第一 AIS消息。
网络节点 A和网络节点 F在预置时间内没有收到携带第一业务带宽信息 的 AIS消息时， 可以使用正常业务策略进行业务处理。
从上可知， 本实施例中微波链路连接的网络节点可以获取微波链路的链 路当前带宽信息， 并根据链路带宽信息与业务带宽信息之间的对应关系， 确 定在链路当前带宽信息时 , 微波链路被分配给微波链路所处的业务连接的业 务带宽信息， 并将分配的业务带宽信息发送给业务连接的端点， 使业务连接 的端点可以根据该分配的业务带宽信息进行业务策略调整， 从而使微波链路 的带宽能够满足业务的需求， 避免出现业务拥塞。
在本发明实施例提供的带宽信息通知方法实施例四中 ,如果微波链路 503 的调制方式降为 16QAM调制方式， 微波链路 503的链路带宽降低为 0. 6Gbps , 根据链路带宽信息与业务带宽信息之间的对应关系， 确定微波链路 503被分 配给第一业务连接 501的第一业务带宽是 500Mbps ,微波链路 503被分配给第 二业务连接 502的第二业务带宽是 50Mbps , 即为第一业务连接 501分配的第 一业务带宽仍然为业务最优带宽， 则网络节点 C可以不向网络节点 A和 /或网 络节点 F发送第一 AIS消息， 网络节点 D也可以不向网络节点 A和 /或网络节 点 F发送第一 AIS消息。
继续以图 5 所描述的场景为例来描述本发明实施例提供的带宽信息通知 方法实施例五，如图 5所示， 第一业务连接 501经过网络节点 A、 网络节点^ 网络节点（、 网络节点 D、 网络节点 E和网络节点 F, 第二业务连接 502经过 网络节点。、 网络节点11、 网络节点^ 网络节点（、 网络节点 D、 网络节点 E 和网络节点 F , 其中网络节点 C和网络节点 D之间的链路为微波链路 503 , 网 络节点 A和网络节点 F是第一业务连接 501的端点，网络节点 G和网络节点 F 是第二业务连接 502的端点。 其中， 第一业务连接 501和第二业务连接 502 具体可以是 LSP。
假设在正常情况下， 网络节点（、 网络节点 D之间的微波链路 503采用 64QAM调制方式， 链路最优带宽是 lGbps , 分配给第一业务连接 501和第二业 务连接 502的业务最优带宽分别是 500Mbps和 300Mbps。网络节点 C和网络节 点 D实时获取微波链路 503的链路当前带宽信息， 并按照正常周期周期性的 通过第一业务连接 501向网络节点 A和 /或网络节点 F发送第一带宽通知消息， 第一带宽通知消息携带了微波链路在链路当前带宽信息时被分配给第一业务 连接 501的第一业务带宽信息；按照正常周期周期性的通过第二业务连接 502 向网络节点 G和 /或网络节点 F发送第二带宽通知消息， 第二带宽通知消息携 带了微波链路在链路当前带宽信息时被分配给第二业务连接 502 的第二业务 带宽信息。 在带宽通知消息中， 可以携带一个 l ink bandwidth TLV对象， 在 l ink bandwidth TLV对象中携带微波链路被分配给对应的业务连接的业务带 宽信息。 业务带宽信息可以是具体的带宽值， 也可以是一种带宽等级指示。 当环境发生变化， 如下雨等， 微波链路 503的调制方式降为 16QAM调制 方式，微波链路 503的链路带宽降低为 0. 6Gbps ,根据链路带宽信息与业务带 宽信息之间的对应关系， 确定微波链路 503被分配给第一业务连接 501的第 一业务带宽是 200Mbps ,微波链路 503被分配给第二业务连接 502的第二业务 带宽是 150Mbps 0
如下以对第二业务连接 502进行处理为例进行描述，对第一业务连接 501 进行处理的过程与对第二业务连接 502的处理过程类似， 不再赘述。
网络节点 C和网络节点 D在微波链路 503当前被分配给第二业务连接 502 的第二业务带宽低于业务最优带宽时， 在第二业务连接 502 上使用较快频率 向网络节点 G和 /或网络节点 F发送几帧第二带宽通知消息， 以实现业务带宽 变化的尽快通告， 后续则以正常周期发送第二带宽通知消息。 例如， 正常时 第二带宽通知消息以 1 秒为周期发送， 而第二业务带宽发生变化时， 前三帧 第二带宽通知消息以 10毫秒为周期发送， 后续的第二带宽通知消息则恢复为 以 1秒为周期发送。
网络节点 G和 /或网络节点 F接收到分配的业务带宽信息， 该分配的业务 带宽信息是微波链路在链路当前带宽信息时被分配给第二业务连接 502 的第 二业务带宽信息， 网络节点 G和 /或网络节点 F可以根据第二业务带宽信息进 行业务策略调整。
一种具体的实现方式可以是， 在网络节点 G和网络节点 F上配置好第二 业务带宽信息与业务连接 QoS策略之间的对应关系， 当网络节点 G和网络节 点 F接收到微波链路在当前调制方式下被分配给对应业务连接的第二业务带 宽信息时， 就启用与第二业务带宽信息对应的 QoS 策略， 从而在业务连接入 口处 (网络节点 G和网络节点 F )控制业务接入， 以此避免业务在经过微波链 路时出现拥塞情况。
另一种具体的实现方式可以是， 在网络节点 A和网络节点 F上配置第二 业务带宽信息与业务倒换策略之间的对应关系， 当网络节点 A和网络节点 F 接收到微波链路在当前调制方式下的第二业务带宽信息时， 就启用与第二业 务带宽信息对应的业务倒换策略， 将部分或全部业务倒换到保护路径。
从上可知， 本实施例中微波链路连接的网络节点可以获取微波链路的链 路当前带宽信息， 并根据链路带宽信息与业务带宽信息之间的对应关系， 确 定在链路当前带宽信息时 , 微波链路被分配给微波链路所处的业务连接的业 务带宽信息， 并将分配的业务带宽信息发送给业务连接的端点， 使该业务连 接的端点可以根据该分配的业务带宽信息进行业务策略调整， 从而使微波链 路的带宽能够满足业务的需求， 避免出现业务拥塞。
如下以图 6 所描述的场景为例来描述本发明实施例提供的带宽信息通知 方法实施例六， 如图 6 所示， 有三个端到端的业务连接， 分别是第一业务连 接 601、 第二业务连接 602和第三业务连接 603, 其中第一业务连接 601和第 二业务连接 602为一对保护组， 第一业务连接 601为工作路径， 第二业务连 接 602为保护路径。 第一业务连接 601经过网络节点 A、 网络节点13、 网络节 点 C和网络节点 D, 第三业务连接经过网络节点 A、 网络节点^ 网络节点11、 网络节点 I和网络节点 J , 其中， 网络节点 A和网络节点 B之间的链路为微波 链路 604 , 第一业务连接 601和第三业务连接 603经过微波链路 604; 第二业 务连接 602经过网络节点 A、 网络节点 E、 网络节点 F、 网络节点 G和网络节 点 D。
假设在正常情况下， 微波链路 604采用 64QAM调制方式， 带宽是 lGbps , 被分配给第一业务连接 601和第三业务连接 603的业务带宽分别是 400Mbps 和 300Mbps。 当环境发生变化， 如下雨等， 调制方式降为 16QAM调制方式， 带 宽降低为 0. 6Gbps ,根据链路带宽信息与业务带宽信息之间的对应关系， 确定 微波链路 604被分配给第一业务连接 601的第一业务带宽是 200Mbps ,微波链 路 604被分配给第三业务连接 603的第二业务带宽是 160Mbps 0下面以第一业 务连接 601和第二业务连接 602为例来具体说明利用 APS来进行带宽通知。 具体地， 当网络节点 A获知分配给第一业务连接 601的业务带宽低于业 务最优带宽时， 网络节点 A在通过保护路径 602发送的 APS消息中携带当前 微波链路被分配给第一业务连接 601 的第一业务带宽信息。 如果第二业务连 接 602上也有另一微波链路， 还可以在 APS消息中携带该另一微波链路被分 配给第二业务连接 602的第二业务带宽信息。 网络节点 A除了发送 APS消息 之外， 还可以根据目前第一业务连接 601当前的第一业务带宽信息和 /或第二 业务连接 602 当前的第二业务带宽信息， 基于事先配置的倒换规则， 将第一 业务连接 601的承载中从网络节点 A到网络节点 D方向的流量全部或部分倒 换至第二业务连接 602。 带宽信息可以是具体的带宽值， 也可以是一种带宽等 级指示。
当网络节点 D接收到网络节点 A发送的 APS消息后， 根据 APS消息携带 的第一业务连接 601当前的第一业务带宽信息和 /或第二业务连接 602当前的 第二业务带宽信息， 基于事先配置的倒换规则， 将第一业务连接 601 的承载 中从网络节点 D 到网络节点 A 方向的流量全部或部分倒换至第二业务连接 602。
值得说明的是， 在具体实施中， 并不一定分配给业务连接的业务带宽低 于业务最优带宽时才在 APS 消息中携带分配的业务带宽信息， 也可以在周期 性发送的 APS消息中一直携带工作路径和保护路径的业务带宽信息。
从上可知， 本实施例中微波链路连接的网络节点可以获取微波链路的链 路当前带宽信息， 并根据链路带宽信息与业务带宽信息之间的对应关系， 确 定在链路当前带宽信息时 , 微波链路被分配给微波链路所处的业务连接的业 务带宽信息， 并将分配的业务带宽信息发送给业务连接的端点， 使业务连接 的端点可以根据该分配的业务带宽信息进行业务策略调整， 从而使微波链路 的带宽能够满足业务的需求， 避免出现业务拥塞。
需要说明的是， 对于前述的各方法实施例， 为了简单描述， 故将其都 表述为一系列的动作组合， 但是本领域技术人员应该知悉， 本发明并不受 所描述的动作顺序的限制， 因为依据本发明， 某些步驟可以采用其它顺序 或者同时进行。 其次， 本领域技术人员也应该知悉， 说明书中所描述的实 施例均属于优选实施例，所涉及的动作和模块并不一定是本发明所必须的。
如下介绍本发明实施例提供的网络节点， 图 7描述了网络节点实施例一 的结构， 包括：
获取单元 701 , 用于获取微波链路的链路当前带宽信息；
其中， 可以实时检测或周期性检测获取微波链路的链路当前带宽信息。 如图 7所示， 在本发明的一个实施例中， 获取单元 701可以包括： 调制 方式检测单元 7011 , 用于检测微波链路的当前调制方式； 带宽信息获取单元
7012, 用于获取微波链路在调制方式检测单元 7011检测的当前调制方式下的 带宽信息。
确定单元 702 , 用于根据链路带宽信息与业务带宽信息之间的对应关系， 确定在获取单元 701 获取的链路当前带宽信息时， 该微波链路被分配给该微 波链路所处的业务连接的业务带宽信息；
发送单元 703,用于通过业务连接向业务连接的端点发送确定单元 702确 定的为该业务连接分配的业务带宽信息， 以使业务连接的端点根据分配的业 务带宽信息进行业务策略调整。
从上可知， 本实施例中网络节点可以获取微波链路的链路当前带宽信息， 并根据链路带宽信息与业务带宽信息之间的对应关系， 确定在链路当前带宽 信息时， 微波链路被分配给微波链路所处的业务连接的业务带宽信息， 将分 配的业务带宽信息发送给业务连接的端点， 使业务连接的端点可以根据该分 配的业务带宽信息进行业务策略调整， 从而使微波链路的带宽能够满足业务 的需求， 避免出现业务拥塞。
图 8描述了网络节点实施例二的结构， 包括：
获取单元 801 , 用于获取微波链路的链路当前带宽信息；
链路判断单元 802 ,用于判断获取单元 801获取的链路当前带宽信息是否 低于链路最优带宽信息；
确定单元 803 ,用于在链路判断单元 802判断链路当前带宽信息低于链路 最优带宽信息时， 根据链路带宽信息与业务带宽信息之间的对应关系， 确定 在获取单元 801 获取的链路当前带宽信息时， 该微波链路被分配给该微波链 路所处的业务连接的业务带宽信息。
发送单元 804 ,用于通过业务连接向业务连接的端点发送确定单元 803确 定的为该业务连接分配的业务带宽信息， 以使业务连接的端点根据分配的业 务带宽信息进行业务策略调整。
在本发明的一个实施例中， 在链路判断单元 802判断获取单元 801获取 的链路当前带宽信息为链路最优带宽信息时， 确定单元 803 不会确定在链路 当前带宽信息时微波链路被分配给该微波链路所处的业务连接的业务带宽信 息， 从而使发送单元 804停止向微波链路所处的业务连接的端点发送分配的 业务带宽信息， 以使该业务连接的端点使用正常业务策略进行业务处理。
从上可知， 本实施例中网络节点可以获取微波链路的链路当前带宽信息， 并根据链路带宽信息与业务带宽信息之间的对应关系， 确定在链路当前带宽 信息时， 微波链路被分配给微波链路所处的业务连接的业务带宽信息， 将分 配的业务带宽信息发送给业务连接的端点， 使业务连接的端点可以根据该分 配的业务带宽信息进行业务策略调整， 从而使微波链路的带宽能够满足业务 的需求， 避免出现业务拥塞。
图 9描述了网络节点实施例三的结构， 包括：
获取单元 901 , 用于获取微波链路的链路当前带宽信息；
确定单元 902 , 用于根据链路带宽信息与业务带宽信息之间的对应关系， 确定在获取单元 901 获取的链路当前带宽信息时， 该微波链路被分配给该微 波链路所处的业务连接的业务带宽信息；
业务判断单元 903,用于判断确定单元 902确定的为该业务连接分配的业 务带宽信息是否低于业务最优带宽信息； 发送单元 904 ,用于在业务判断单元 903判断该分配的业务带宽信息低于 业务最优带宽信息时， 通过业务连接向业务连接的端点发送该分配的业务带 宽信息。
在本发明的一个实施例中， 在业务判断单元 903判断确定单元 902确定 的分配的业务带宽信息为业务最优带宽信息时， 发送单元 904会停止向微波 链路所处的业务连接的端点发送分配的业务带宽信息， 以使该业务连接的端 点使用正常业务策略进行业务处理。
从上可知， 本实施例中网络节点可以获取微波链路的链路当前带宽信息， 并根据链路带宽信息与业务带宽信息之间的对应关系， 确定在链路当前带宽 信息时， 微波链路被分配给微波链路所处的业务连接的业务带宽信息， 将分 配的业务带宽信息发送给业务连接的端点， 使该业务连接的端点可以根据该 分配的业务带宽信息进行业务策略调整， 从而使微波链路的带宽能够满足业 务的需求， 避免出现业务拥塞。
图 10描述了网络节点实施例四的结构， 包括：
接收单元 1001 , 用于接收为业务连接分配的业务带宽信息； 该分配的业 务带宽信息是由微波链路连接的网络节点根据链路带宽信息与业务带宽信息 之间的对应关系确定， 该分配的业务带宽信息是在链路当前带宽信息时微波 链路被分配给业务连接的业务带宽信息；
确定单元 1002 , 用于才艮据预置的业务带宽信息与业务策略之间的对应关 系， 确定接收单元 1001接收的为该业务连接分配的业务带宽信息对应的业务 策略；
处理单元 1003, 用于根据确定单元 1002确定的业务策略进行业务处理。 从上可知， 本实施例中网络节点可以接收微波链路连接的网络节点发送 的为业务连接分配的业务带宽信息， 根据分配的业务带宽信息进行业务策略 调整， 从而使微波链路的带宽能够满足业务的需求， 避免出现业务拥塞。
本发明实施例还提供了通信系统 , 该通信系统包括本发明实施例提供的 网络节点。
上述装置和系统内的各模块之间的信息交互、 执行过程等内容， 由于与 本发明方法实施例基于同一构思， 具体内容可参见本发明方法实施例中的叙 述， 此处不再赘述。
本领域普通 ^支术人员可以理解实现上述实施例方法中的全部或部分流 程， 是可以通过计算机程序来指令相关的硬件来完成， 所述的程序可存储于 一计算机可读取存储介质中， 该程序在执行时， 可包括如上述各方法的实施 例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体（ Read-On ly Memory, ROM )或随机存储记忆体 ( Random Acces s Memory, RAM )等。
以上对本发明实施例所提供的带宽信息通知方法、 业务处理方法、 网络 节点及通信系统进行了详细介绍 , 以上实施例的说明只是用于帮助理解本发 明的方法及其思想； 同时， 对于本领域的一般技术人员， 依据本发明的思想， 在具体实施方式及应用范围上均会有改变之处， 综上所述， 本说明书内容不 应理解为对本发明的限制。

Claims

权利 要求 书
1、 一种带宽信息通知方法， 其特征在于， 包括：
获取链路的链路当前带宽信息；
根据链路带宽信息与经过所述链路的业务连接的业务带宽信息之间的对应 关系， 确定在所述链路当前带宽信息时， 所述链路被分配给所述链路所处的业 务连接的业务带宽信息；
通过所述业务连接向所述业务连接的端点发送分配的业务带宽信息， 以使 所述业务连接的端点根据所述分配的业务带宽信息进行业务策略调整。
2、 如权利要求 1所述的带宽信息通知方法， 其特征在于， 所述链路为微波 链路， 所述获取链路的链路当前带宽信息的步骤包括：
检测所述微波链路的当前调制方式， 获取所述微波链路在所述当前调制方 式下的带宽信息。
3、 如权利要求 1或 2所述的带宽信息通知方法， 其特征在于， 确定所述分 配的业务带宽信息前， 该方法进一步包括：
判断所述链路当前带宽信息低于链路最优带宽信息。
4、 如权利要求 1或 2所述的带宽信息通知方法， 其特征在于， 发送所述分 配的业务带宽信息前， 该方法进一步包括：
判断所述分配的业务带宽信息低于业务最优带宽信息。
5、 一种业务处理方法， 其特征在于， 包括：
接收为业务连接分配的业务带宽信息； 所述分配的业务带宽信息是由链路 连接的网络节点根据链路带宽信息与业务连接的业务带宽信息之间的对应关系 确定 , 所述分配的业务带宽信息是在链路当前带宽信息时所述链路被分配给所 述业务连接的业务带宽信息；
才艮据预置的业务带宽信息与业务策略之间的对应关系， 确定所述分配的业 务带宽信息对应的业务策略；
根据确定的业务策略进行业务处理。
6、 一种网络节点， 其特征在于， 包括：
获取单元， 用于获取链路的链路当前带宽信息； 确定单元， 用于根据链路带宽信息与业务连接的业务带宽信息之间的对应 关系， 确定在所述获取单元获取的链路当前带宽信息时， 所述链路被分配给所 述链路所处的业务连接的业务带宽信息；
发送单元， 用于通过所述业务连接向所述业务连接的端点发送所述确定单 元确定的为所述业务连接分配的业务带宽信息， 以使所述业务连接的端点根据 所述分配的业务带宽信息进行业务策略调整。
7、 如权利要求 6所述的网络节点， 其特征在于， 所述链路为微波链路， 所 述获取单元包括：
调制方式检测单元， 用于检测所述微波链路的当前调制方式； 的当前调制方式下的带宽信息。
8、 如权利要求 6或 7所述的网络节点， 其特征在于， 还包括：
链路判断单元， 用于判断所述获取单元获取的链路当前带宽信息是否低于 链路最优带宽信息；
所述确定单元， 用于在所述链路判断单元判断所述链路当前带宽信息低于 链路最优带宽信息时， 根据链路带宽信息与业务带宽信息之间的对应关系， 确 定在所述获取单元获取的链路当前带宽信息时 , 所述链路被分配给所述链路所 处的业务连接的业务带宽信息。
9、 如权利要求 6或 7所述的网络节点， 其特征在于， 还包括：
业务判断单元， 用于判断所述确定单元确定的为所述业务连接分配的业务 带宽信息是否低于业务最优带宽信息；
所述发送单元， 用于在所述业务判断单元判断所述分配的业务带宽信息低 于业务最优带宽信息时， 通过所述业务连接向所述业务连接的端点发送所述分 配的业务带宽信息。
10、 一种网络节点， 其特征在于， 包括：
接收单元， 用于接收为业务连接分配的业务带宽信息； 所述分配的业务带 宽信息是由链路连接的网络节点根据链路带宽信息与业务连接的业务带宽信息 之间的对应关系确定， 所述分配的业务带宽信息是在链路当前带宽信息时所述 链路被分配给所述业务连接的业务带宽信息； 确定单元， 用于才艮据预置的业务带宽信息与业务策略之间的对应关系， 确 定所述接收单元接收的为所述业务连接分配的业务带宽信息对应的业务策略； 处理单元， 用于4 据所述确定单元确定的业务策略进行业务处理。
11、 一种通信系统， 其特征在于， 包括如权利要求 6至 10任一所述的网络 节点。
PCT/CN2010/076044 2009-08-31 2010-08-17 带宽信息通知方法、业务处理方法、网络节点及通信系统 WO2011023071A1 (zh)

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