Super Dual Band User Manual
Super Dual Band User Manual
Super Dual Band User Manual
V100R011C00
Issue 01
Date 2018-04-30
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Contents
1 Feature Description....................................................................................................................... 1
1.1 Introduction.................................................................................................................................................................... 2
1.2 System Configuration..................................................................................................................................................... 3
1.2.1 System Configuration (the Master Device Is an RTN 905 1E/2E/2F)........................................................................ 4
1.2.2 System Configuration (the Master Device Is an RTN 950/950A)...............................................................................6
1.2.3 System Configuration (the Master Device Is an RTN 980).........................................................................................9
1.2.4 System Configuration (the Master Device Is an RTN 380H)....................................................................................11
1.3 Typical Applications.....................................................................................................................................................12
1.3.1 Tail Node Application................................................................................................................................................12
1.3.2 Aggregation Transmission Application..................................................................................................................... 13
1.3.3 Back-to-Back Application......................................................................................................................................... 13
1.3.4 Large-Capacity Aggregation Upstream Application................................................................................................. 14
1.3.5 Optical Fiber Supplementing and Aggregation Application..................................................................................... 14
1.3.6 Hybrid Application with Third-Party Equipment......................................................................................................15
1.4 Feature Enhancement................................................................................................................................................... 15
1.4.1 Super Dual Band Relay............................................................................................................................................. 15
1.4.2 Dual-Band Antenna................................................................................................................................................... 17
1.5 Principles...................................................................................................................................................................... 18
1.5.1 Principles (Master Device Is an RTN 905 1E/2E/2F)............................................................................................... 18
1.5.2 Principles (Master Device Is an RTN 950/950A)......................................................................................................19
1.5.3 Principles (Master Device Is an RTN 980)................................................................................................................20
1.5.4 Principles (Master Device Is an RTN 380H).............................................................................................................21
1.5.5 Super EPLA............................................................................................................................................................... 22
1.6 Switching Conditions................................................................................................................................................... 25
1.7 Specifications................................................................................................................................................................26
1.8 Availability................................................................................................................................................................... 34
1.9 Feature Updates............................................................................................................................................................ 36
1.10 Feature Dependencies and Limitations.......................................................................................................................38
1.11 Planning Guidelines....................................................................................................................................................48
1.12 FAQs........................................................................................................................................................................... 48
2 Deployment Instructions........................................................................................................... 49
2.1 General Deployment Process........................................................................................................................................49
2.2 Configuration Process (Master Device Is an RTN IDU 900)....................................................................................... 52
3 Maintenance Instructions.......................................................................................................... 75
3.1 RMON Performance.....................................................................................................................................................75
3.2 Troubleshooting (the Master Device Is an RTN IDU 900).......................................................................................... 82
3.3 Troubleshooting (the Master Device Is an RTN 380H)................................................................................................84
3.4 Alarm Reference...........................................................................................................................................................85
3.4.1 PLA_CFG_MISMATCH...........................................................................................................................................85
3.4.2 PLA_DOWN............................................................................................................................................................. 89
3.4.3 PLA_MEMBER_DOWN_EXT................................................................................................................................ 90
3.4.4 PLA_PKT_ERR........................................................................................................................................................ 93
1 Feature Description
1.1 Introduction
This section defines Super Dual Band and describes its purpose.
1.2 System Configuration
This section describes the typical system configurations of the Super Dual Band solution.
1.3 Typical Applications
This section describes five typical applications supported by Super Dual Band.
1.4 Feature Enhancement
This section describes the enhancement to Super Dual Band.
1.5 Principles
This section describes the principles of Super Dual Band.
1.6 Switching Conditions
Either a link fault or a hardware fault will trigger Super enhanced physical link aggregation
(EPLA) switching.
1.7 Specifications
This section lists Super Dual Band specifications.
1.8 Availability
This section lists the hardware requirements that must be met to implement Super Dual Band.
1.9 Feature Updates
This section provides a history of Super Dual Band updates.
1.10 Feature Dependencies and Limitations
This section describes the dependencies and limitations of Super Dual Band.
1.11 Planning Guidelines
This section provides guidelines for planning Super Dual Band.
1.12 FAQs
1.1 Introduction
This section defines Super Dual Band and describes its purpose.
Definition
In the LTE era, traffic to be backhauled exponentially increases, posing great challenges on
LTE backhaul networks:
l Spectrum resources of common frequency bands are becoming insufficient and their
transmission bandwidth is limited, making capacity expansion increasingly difficult.
l Limited transmission distances of E-band microwave cannot meet medium-distance
backhaul requirements of macro base stations.
To tackle the challenges, Huawei launches the Super Dual Band solution, which delivers the
innovative cross-band link aggregation technology. By integrating physical link aggregation,
adaptive modulation (AM), and quality of service (QoS), this solution binds common-band
microwave (6-42 GHz) and E-band microwave (71-76 GHz and 81-86 GHz) to achieve large-
bandwidth and long-distance transmission.
Figure 1-1 Super Dual Band solution(the master device is an RTN 900)
Figure 1-2 Super Dual Band solution (the master device is an RTN 300)
Purpose
To meet LTE broadband backhaul requirements, Super Dual Band leverages the following
advantages of common-band microwave and E-band microwave:
l E-band microwave provides flexible large bandwidth. The air interface throughput
reaches 10 Gbit/s.
l Common-band microwave provides resistance against rain fade and ensures high
availability. Therefore, the availability requirement on E-band links can be reduced to
99.9% so that E-band microwave can achieve a transmission distance of up to over 10
km. With Super Dual Band Relay, a three-fold transmission distance can be achieved.
l The physical link aggregation, AM, and QoS technologies together guarantee 99.999%
availability of core services.
Super Dual Band is the optimal solution for large-bandwidth and long-distance backhaul of
wireless traffic. See Table 1-1.
Table 1-1 Comparison of Super Dual Band, common band, and E-band
NOTE
l The RTN 905 2E is used as an example to describe the typical configuration. The configuration method is
similar when the RTN 905 1E is used.
l When one of two ports on the logical board GE5 or GE6 needs to be equipped with a 2.5 GE optical
module, the other must also be equipped with a 2.5 GE optical module.
l When configuring a Super EPLA group, configure the IF port as the main port for the group.
l When the RTN 950/950A provides the Super Dual Band solution based on the EM6D board, it supports
Mode A Access and therefore can interconnect with the RTN 905 1E/2E.
When the RTN 905 1E serves as the master device, it supports only one Super EPLA group.
One Super EPLA group contains a maximum of three member links, and its maximum
bandwidth is 2.5 Gbit/s. A single NE supports a maximum of three member links, and its
maximum bandwidth is 2.5 Gbit/s.
When the RTN 905 2E serves as the master device, it supports a maximum of two Super
EPLA groups. One Super EPLA group contains a maximum of four member links, and its
maximum bandwidth is 2.5 Gbit/s. A single NE supports a maximum of six member links,
and its maximum bandwidth is 2.5 Gbit/s.
NOTE
l The RTN 905 2F supports only Mode A and therefore cannot interconnect with the RTN 905 1E/2E.
l When configuring a Super EPLA group, set the IF port or the service port on the logical board EM10 as
the master port for the group.
When the RTN 905 2F serves as the master device, it supports a maximum of two Super
EPLA groups. One Super EPLA group contains a maximum of eight member links, and its
maximum bandwidth is 20 Gbit/s. A single NE supports a maximum of twelve member links,
and its maximum bandwidth is 20 Gbit/s.
Figure 1-5 Typical configuration of the Super Dual Band solution (EM6D board)
NOTE
The RTN 950 is used as an example to describe the typical configuration. The configuration method is similar
when the RTN 950A is used.
When the RTN 950/950A serves as the master device, a single NE supports a maximum of
three EM6D boards. An EM6D board supports a maximum of two Super EPLA groups. One
Super EPLA group contains a maximum of eight members, and its maximum bandwidth is 10
Gbit/s. An EM6D board supports a maximum of eight members, and the NE provides a
maximum bandwidth of 3 x 10 Gbit/s.
NOTE
l On an EM6D board, the port that connects to an E-band link must be configured as the master port
in a Super EPLA group.
l Service ports in Super EPLA groups can only be ports on EM6D boards.
l When the RTN 950/950A provides the Super Dual Band solution based on the EM6D board, it
supports Mode A Access and therefore can interconnect with the RTN 905 1E/2E.
Figure 1-6 Typical configuration of the Super Dual Band solution (CSHUF or EX1 board)
When the master device is the RTN 950 housing the CSHUF board, it supports a maximum of
four Super EPLA groups. One Super EPLA group contains a maximum of ten member links,
and its maximum bandwidth is 20 Gbit/s. A single NE supports a maximum of sixteen
member links, and its maximum bandwidth is 30 Gbit/s.
NOTE
When the CSHUF board is used, the EM6D board cannot be configured.
When the RTN 980 serves as the master device, it supports a maximum of four Super EPLA
groups. One Super EPLA group contains a maximum of sixteen member links, and its
maximum bandwidth is 10 Gbit/s. A single NE supports a maximum of sixteen member links,
and its maximum bandwidth is 20 Gbit/s.
NOTE
l When configuring a Super EPLA group, an IF port or an Ethernet port connecting to an E-band link
can function as the main port.
l When the RTN 380H is the slave device, the COMBO port must be preferentially configured as a cascade
port.
l When the slave device is an RTN 310, RTN 320 or RTN 380H, level-2 cascading is not supported. When
the slave device is a third-party common-band device, the RTN 380H (as the master device) can cascade
another RTN 310, RTN 320 or RTN 380H.
Figure 1-8 Typical configuration of the full-outdoor Super Dual Band solution
Figure 1-9 Typical configuration of the Super Dual Band solution that supports hybrid
application with third-party devices
When the RTN 380H serves as the master device, it supports only one Super EPLA group.
One Super EPLA group contains a maximum of four member links, and its maximum
bandwidth is 10 Gbit/s. A single NE supports a maximum of four member links, and its
maximum bandwidth is 10 Gbit/s.
l Supports a maximum of three E-band relay hops, which triples the Super Dual Band
transmission distance.
l Supports bidirectional bandwidth notification. If the air-interface bandwidth of a relay
microwave link fluctuates, the bandwidth fluctuation will be bidirectionally reported to
the master devices of Super Dual Band at the two ends of the microwave link in real time
to guarantee real-time control and service QoS assurance for end-to-end traffic in the
microwave link of Super Dual Band.
l Supports multiple E-band relay hops but with the same E-band device type (that is, either
RTN 380 or RTN 380H).
l Supports AM and hitless switchover between multiple E-band trunk links.
The dual-band antenna of Super Dual Band has the following highlights:
l Reduced tower space and wind load, reduced infrastructure investments
With rapid network expansion, tower resources are becoming increasingly scarce. Using
only one dual-band antenna reduces not only tower wind load but also tower space lease
fees required for antenna installation. These benefits are especially apparent when the
traditional microwave evolves towards the SDB microwave. During the evolution,
legacy tower resources can be reused, greatly reducing maintenance costs.
l Easy installation and commissioning, shortened time to market
Only one dual-band antenna is required, simplifying antenna deployment and saving
50%+ installation time. Dual-band antennas are aligned based on the common band and
then E-band, greatly reducing antenna alignment difficulties.
l Reduced antennas and TCO
Only one antenna is required, greatly simplifying the E2E antenna delivery process
(including packaging, transportation, installation, and commissioning).
l Flexible application scenarios
The dual-band antenna uses two independent feed ports. Each port allows sufficient
space to install components such as the combiner and OMT, achieving flexible
combination of the RF configuration modes of the common-band and E-band in various
scenarios.
1.5 Principles
This section describes the principles of Super Dual Band.
The E-band link in the Super Dual Band solution where the master device is the RTN 905
1E/2E requires the RTN 380, not the RTN 380H. This solution has the following
characteristics:
l The RTN 905 1E supports one Super Dual Band group consisting of one common-band
link and one E-band link. The maximum capacity is 2.5 Gbit/s.
l The RTN 905 2E supports a maximum of two Super Dual Band groups. Either group
contains only one E-band link and provides a maximum capacity of 2.5 Gbit/s. The
maximum system capacity is also 2.5 Gbit/s.
l Super Dual Band services can be received/transmitted through ports GE1 to GE6 and
support Layer 2 switching.
The E-band link in the Super Dual Band solution where the master device is the RTN 905 2F
requires the RTN 380 and RTN 380H. This solution has the following characteristics:
l The RTN 905 2F supports a maximum of two Super Dual Band groups. Either group
provides a maximum capacity of 20 Gbit/s. The maximum system capacity is also 20
Gbit/s.
l Super Dual Band services can be received/transmitted through ports GE1 to GE10 and
support Layer 2 switching.
The following figure shows the signal flow for the Super Dual Band solution where the
master device is the RTN 905 1E/2E/2F.
Figure 1-21 Signal flow for the Super Dual Band (RTN 905 1E/2E/2F) solution
Figure 1-22 Signal flow for the Super Dual Band (EM6D) solution
l A single NE supports four Super EPLA groups with a maximum of 16 links. The
maximum capacity of each group is 20 Gbit/s, and the maximum system capacity is 30
Gbit/s.
l RTN 380/380Hs supporting E-band links are connected to CSHUF or EX1 boards.
l Services transmitted through Super Dual Band can be accessed from any Ethernet
service ports or forwarded by other microwave links. Such services support Layer 2
switching.
The following figure shows the signal flow for the Super Dual Band solution where the
master device is the RTN 950 (CSHUF).
Figure 1-23 Signal flow for the Super Dual Band (CSHUF) solution
Figure 1-24 Signal flow for the Super Dual Band (RTN 980) solution
Figure 1-25 Signal flow for the full-outdoor Super Dual Band solution
l It supports one Super Dual Band group consisting of a maximum of 4 member links. The
maximum capacity of Super Dual Band is 10 Gbit/s.
l The master/slave device relationship of a Super Dual Band group is fixed, and device
switching is not supported.
l Services are accessed only from the master device RTN 380H, and a maximum of four
channels of services are supported.
l The RTN 380H and third-party common-band equipment are cascaded through the GE
optical port or GE electrical port, and only single-port cascading is supported.
l An XPIC group can be configured between common-band member links or E-band
member links of a Super Dual Band group on Huawei microwave devices. PLA/XPIC
can be configured on the third-party common-band device.
Figure 1-26 Signal flow for the Super Dual Band solution of hybrid application with third-
party common-band equipment
NOTE
In this example, the principles of the Super Dual Band solution using EM6D boards are described.
Link Aggregation
Super Dual Band aggregates common-band and E-band links as a Super enhanced physical
link aggregation (EPLA) group, as shown in Figure 1-27.
l A Super EPLA group is configured on an EM6D board. Link 1 is the master link. Links
2 and 3 are slave links.
l A Super EPLA group is configured on an RTN 380/RTN 380H.
common-band links and therefore are not affected by any E-band link
bandwidth changes.
n If high-priority service traffic is higher than 90% of the total guaranteed
capacity provided by all common-band links, the system automatically
switches from the MODE B mode to the MODE A mode. After the high-
priority service traffic becomes lower than 70% of the total guaranteed
capacity provided by all common-band links, the system automatically
switches back to the MODE B mode after 1 minute.
n If common-band links have idle resources, they can transmit some low-priority
services.
n If common-band links are faulty, high-priority services are switched to E-band
links. In this case, high-priority services are transiently interrupted.
3. The EM6D board transmits services destined for the E-band link directly to the RTN
380. The EM6D board transmits services destined for common-band links to the
backplane, which then forwards the services to the corresponding IF boards.
4. The RTN 380 and IF boards/ODUs transparently transmit services to the peer end.
In the receive direction:
1. The master and slave links transmit the received Ethernet service signals to the EM6D
board.
2. The EM6D board combines the received Ethernet service signals into one channel and
transmits them to the service access port.
Traffic Adjustment
IF boards and the RTN 380 report their available air-interface capacities to the EM6D board.
The EM6D board then adjusts traffic distributed to links accordingly.
Protection Switching
Each member in a Super EPLA group checks the link and hardware status in real time.
Switching occurs upon detection of a link or hardware fault.
After a link in a Super EPLA group fails, the EM6D board stops transmitting services to the
failed link and transmits services only to functional links. In this case, the Super EPLA group
provides lower Ethernet bandwidth because one link is unavailable.
As shown in Figure 1-28 and Figure 1-29, after link 3 fails, the EM6D board does not
transmit traffic to link 3 but only to links 1 and 2.
After link 3 recovers, the EM6D board automatically restarts to distribute traffic on all the
three links.
NOTE
Super EPLA protects only Ethernet service signals and does not protect TDM services.
Table 1-2 Conditions for Super EPLA switching (Master Device Is an RTN IDU 900)
Switching Type Switching Condition
Table 1-3 Conditions for Super EPLA switching (Master Device Is an RTN 380H)
Switching Type Switching Condition
1.7 Specifications
This section lists Super Dual Band specifications.
Table 1-4 Super Dual Band specifications (the master device is an RTN IDU 900)
Item Specifications
Item Specifications
Maximum 16 8 8 16 3 4 8
number of
members in a
Super EPLA
group
Item Specifications
Dynamic Supported
adjustment
of Super
EPLA group
bandwidth
according to
Ethernet
bandwidth
on
microwave
links
Item Specifications
Threshold Not BE, AF1, AF2, AF3, AF4, EF, Not supported Not
distinguishin supporte CS6, and CS7d support
g high- d ed
priority and
low-priority
services in a
Super EPLA
group
Item Specifications
l a: The number of supported Super EPLA groups is restricted by the following factors:
– When the Super Dual Band solution is provided based on the EM6D board, the
number of Super EPLA groups supported by the RTN 950/950A is independent of
EPLA/EPLA+ groups.
– When the Super Dual Band solution is provided based on the CSHUF or EX1 (used
with CSHUF) board, the Super EPLA group of the RTN 950 shares EPLA group
resources with the EPLA/EPLA+ group of the RTN 950 (the PLA ID ranges from 1
to 9).
– If the maximum bandwidth of a single Super EPLA group is greater than 15
Gbit/s, a maximum of one EPLA/Super Dual Band group can be configured.
– If the maximum bandwidth of a single Super EPLA group is greater than 10
Gbit/s but smaller than or equal to 15 Gbit/s, a maximum of two EPLA/Super
Dual Band groups can be configured.
– If the maximum bandwidth of a single Super EPLA group is greater than and
equal to 5 Gbit/s but smaller than or equal to 10 Gbit/s, a maximum of three
EPLA/Super Dual Band groups can be configured.
– If the maximum bandwidth of a single Super EPLA group is smaller than or
equal to 5 Gbit/s, a maximum of four EPLA/Super Dual Band groups can be
configured.
– When the SCC board is CSHNU, EPLA, enhanced N+1 protection, and Super Dual
Band share EPLA group resources. When the PLA ID falls within the range of 1-20
or 21–40, at most any two of EPLA, enhanced N+1 protection, and Super Dual
Band can be configured.
l b: Super Dual Band is implemented based on EM6D boards:
– A single NE can house a maximum of three EM6D boards.
– An EM6D board supports a maximum of two Super EPLA groups. Each Super
EPLA group contains a maximum of eight members, and its maximum bandwidth is
10 Gbit/s. An EM6D board supports a maximum of eight members, and its
maximum total bandwidth is 10 Gbit/s.
l c: The Super EPLA scheduling modes are described as follows:
– In MODE A mode, high-priority and low-priority services are distributed to
common-band and E-band links based on their link bandwidths, implementing inter-
frequency AM. Before E-band links are completely unavailable, services within
available bandwidth are switched to common-band links in hitless mode.
– In MODE B mode, E-band link bandwidth changes do not affect the transmission of
high-priority services, ensuring hitless transmission of high-priority services. In this
mode, high-priority services are transmitted on common-band links.
– The MODE A Access mode is specific only to the RTN 905 1E/2E, and its service
scheduling mode is similar to MODE A.
Item Specifications
Table 1-5 Super Dual Band specifications (the master device is an RTN 380H)
Item Specifications
Maximum number of 1
Super EPLA groups
Maximum number of 4g
members in a Super
EPLA group
Maximum number of 4
members in all Super
EPLA groups
Item Specifications
Working mode l When the slave device is an RTN 320, the IS3/IS6 mode is
supported.
l When the slave device is an RTN 380H (using MXXI5), the
enhanced and common modes are supported.
l f: When the slave device is an RTN 380H, the COMBO port must be preferentially used
as the cascade port.
l g: The maximum number of members in a Super EPLA group is limited as follows:
– When the slave device is an RTN 310, RTN 320 or RTN 380H, two-level cascading
is not supported.
– When the slave device is a third-party common-band device, RTN 380H or RTN 320
can be cascaded to the master device RTN 380H.
l h: The Super EPLA scheduling modes are described as follows:
– In MODE A mode, high-priority and low-priority services are distributed to
common-band and E-band links based on their link bandwidths, implementing inter-
frequency AM. Before E-band links are completely unavailable, services within
available bandwidth are switched to common-band links in hitless mode.
1.8 Availability
This section lists the hardware requirements that must be met to implement Super Dual Band.
Feature Updates
Version Description
l RTN 950/RTN 950A Super Dual Band is first available in RTN 950/RTN 950A
(serving as the master V100R008C10 and RTN 380 V100R006C00.
device): V100R008C10
or later
l RTN 380 (serving as the
slave device):
V100R006C00
Version Description
l RTN 980/RTN 905 l The RTN 980 supports Super Dual Band through the
1E/RTN 905 2E (serving CSHNU board or EX1 board (used with CSHNU).
as the master device): l The RTN 905 1E/2E supports Super Dual Band through
V100R009C10 a software upgrade.
l RTN 380H (serving as l When the RTN 900 serves as the master device, the RTN
the slave device): 380H (using MXUI5) supports Super Dual Band.
V100R007C10
l Super Dual Band Relay is supported.
l Common-band links are enhanced to be supported by
the ISU2, ISX2, and IFU2 boards.
l Super Dual Band is enhanced to support 1+1 protection.
l RTN 950/RTN 950A/ l When the RTN 900 serves as the master device, the RTN
RTN980/RTN 905 380H (using MXXI5) supports Super Dual Band.
1E/RTN 905 2E (serving l When the RTN 950/RTN 950A/RTN 980 serves as the
as the master device): master device, Super Dual Band is enhanced to support
V100R010C00 1588v2.
l RTN 380H (serving as
the slave device):
V100R008C00
l RTN 380H (serving as l The full-outdoor Super Dual Band scenario where the
the master device): master device is an RTN 380H is supported.
V100R008C00 l The Super Dual Band scenario where the master device
l RTN 320 (serving as the RTN 380H interconnects with a third-party common-
slave device): band device is supported.
V100R008C00 l Dual-band antennas are supported.
l RTN 950/RTN 905 2F l The RTN 950 is enhanced to support Super Dual Band
(serving as the master through the CSHUF or EX1 (used with CSHUF) board.
device): V100R011C00 In this case, the slave device must be the RTN 380
(using MXUF4) or the RTN 380H.
l The RTN 905 2F is enhanced to support Super Dual
Band through the logical board EM10, In this case, the
slave device must be the RTN 380 (using MXUF4) or
the RTN 380H.
l Common-band links are enhanced to be supported by
the ISM8 boards.
l The EM6D board is enhanced to support Mode A
Access.
l RTN 380H (serving as When the RTN 380H is the master device, the RTN 310 can
the master device): serve as the slave device to support Super Dual Band.
V100R009C00
l RTN 310 (serving as the
slave device):
V100R009C00
Self-limitations
Service type Only the Native E-LAN and E-Line services are supported. The services
can be accessed from Ethernet ports or transferred from IF ports.
CSHUF board When the RTN 950 uses the CSHUF board, the EM6D board cannot be
used and the EX1 board can be inserted only in slot 1/2/3/5.
EM6D board l Only the Native E-LAN and E-Line services are supported.
l You cannot directly configure a service from a service access port on
an EM6D board to another Ethernet board. Instead, you can use a
fiber jumper to connect the service access port on the EM6D board
and a port on another Ethernet board and configure an E-Line service
from the service access port to the master port in the Super EPLA
group on the EM6D board.
l An EM6D board must be housed in left-side slot 1/3/5.
l When the RTN 950/950A provides the Super Dual Band solution
based on the EM6D board, it supports Mode A Access and therefore
can interconnect with the RTN 905 1E/2E.
Item Description
E-band link l The E-band device can be an RTN 380 or RTN 380H. A Super EPLA
group can support either the RTN 380 or RTN 380H but cannot
support both.
l Ethernet ports connecting an EM6D and an RTN 380/380H must be of
the same type.
l After the RTN 380/RTN 380H is connected to the EM6D board, the
Ethernet and IF ports on the RTN 380/RTN 380H can no longer be
configured with services.
l An RTN 380/380H supports only one Super EPLA group.
l One RTN 380/380H can be connected to an EM6D board through a
maximum of two Ethernet links. In addition, the RTN 380H must use
COMBO ports for connecting to the EM6D board.
l If a Super EPLA group is configured on an RTN 380/380H, the
inband DCN function must be disabled on its IF port.
l Air-interface Ethernet bandwidth of the RTN 380:
– The maximum air-interface Ethernet bandwidth for the GE
Ethernet port is 650 Mbit/s.
– The maximum air-interface Ethernet bandwidth for the 2.5 GE
Ethernet port is 1650 Mbit/s.
– The maximum air-interface Ethernet bandwidth for all Ethernet
ports on the RTN 380 is 3350 Mbit/s.
l Air-interface Ethernet bandwidth of the RTN 380H:
– The maximum air-interface Ethernet bandwidth for the GE
Ethernet port is 650 Mbit/s.
– The maximum air-interface Ethernet bandwidth for the 2.5 GE
Ethernet port is 1650 Mbit/s.
– The maximum air-interface Ethernet bandwidth for the 10 GE
Ethernet port is 6750 Mbit/s.
– The maximum air-interface Ethernet bandwidth for all Ethernet
ports on the RTN 380H is 8250 Mbit/s.
Item Description
Service On an EM6D board or an RTN 380/380H, each port has two service
channel ID channel IDs, for example, 1(PORT-1)-1 and 1(PORT-1)-2. The service
channel IDs are reserved for further expansion of Super Dual Band. In
the current version, configure the service channel ID consistently for
corresponding ports on the EM6D boards and RTN 380/380H containing
a Super Dual Band link. You are advised to set the service channel ID to
1.
Reserved air- During link planning, 512 kbit/s Ethernet bandwidth must be reserved for
interface each Super EPLA link to function as the protocol channel. Otherwise, the
Ethernet Super EPLA group cannot work stably.
bandwidth
Super Dual l An E-band link supports a maximum of three hops of relay links or a
Band Relay maximum of two E-band relay sites.
l The types of devices on an E-band trunk link must be the same, and
the sequence numbers of cascade ports between back-to-back NEs
must be consistent.
l Super Dual Band Relay supports two or more E-band relay hops.
Each relay hop must contain devices of the same type and have the
same number of air-interface hops.
l If Super Dual Band Relay is deployed, E-band links do not support
62.5 MHz channel bandwidth, and common-band links using IFU2
boards do not support 7 MHz bandwidth.
l Relay sites for E-band links do not support service access.
Service type The Native E-LAN, Native E-Line, MPLS, and L3VPN services are
supported. The services can be accessed from Ethernet ports or
transferred from IF ports.
Item Description
E-band link l The E-band device can be an RTN 380 or RTN 380H. A Super EPLA
group can support either the RTN 380 or RTN 380H but cannot
support both.
l Ethernet ports connecting a system control board and an RTN
380/380H must be of the same type.
l After the RTN 380/RTN 380H is connected to the CSHNU board, the
Ethernet and IF ports on the RTN 380/RTN 380H can no longer be
configured with services.
l An RTN 380/380H supports only one Super EPLA group.
l One RTN 380/380H can be connected to a system control board
(supporting Super Dual Band) through a maximum of two Ethernet
links. In addition, the RTN 380H must use COMBO ports for
connecting to the system control board.
l If a Super EPLA group is configured on an RTN 380/380H, the
inband DCN function must be disabled on its IF port.
l Air-interface Ethernet bandwidth of the RTN 380:
– The maximum air-interface Ethernet bandwidth for the GE
Ethernet port is 650 Mbit/s.
– The maximum air-interface Ethernet bandwidth for the 2.5 GE
Ethernet port is 1650 Mbit/s.
– The maximum air-interface Ethernet bandwidth for all Ethernet
ports on the RTN 380 is 3350 Mbit/s.
l Air-interface Ethernet bandwidth of the RTN 380H:
– The maximum air-interface Ethernet bandwidth for the GE
Ethernet port is 650 Mbit/s.
– The maximum air-interface Ethernet bandwidth for the 2.5 GE
Ethernet port is 1650 Mbit/s.
– The maximum air-interface Ethernet bandwidth for the 10 GE
Ethernet port is 6750 Mbit/s.
– The maximum air-interface Ethernet bandwidth for all Ethernet
ports on the RTN 380H is 8250 Mbit/s.
Item Description
Service On a CSHNU board or an RTN 380/380H, each port has two service
channel ID channel IDs, for example, 1(PORT-1)-1 and 1(PORT-1)-2. The service
channel IDs are reserved for further expansion of Super Dual Band. In
the current version, configure the service channel ID consistently for
corresponding ports on the CSHNU boards and RTN 380/380H
containing a Super Dual Band link. You are advised to set the service
channel ID to 1.
Reserved air- During link planning, 512 kbit/s Ethernet bandwidth must be reserved for
interface each Super EPLA link to function as the protocol channel. Otherwise, the
Ethernet Super EPLA group cannot work stably.
bandwidth
Super Dual l An E-band link supports a maximum of three hops of relay links or a
Band Relay maximum of two E-band relay sites.
l If two ports between NEs cascaded in back-to-back mode are
connected using cascade cables, the port with the large port ID is
connected using one cable and the port with the small port ID is
connected using another cable. For example, if cascade ports of NE1
are ports 1 and 3 and cascade ports of NE2 are ports 2 and 5, port 1 is
connected to port 2 and port 3 is connected to port 5.
l Super Dual Band Relay supports two or more E-band relay hops.
Each relay hop must contain devices of the same type and have the
same number of air-interface hops.
l If Super Dual Band Relay is deployed, E-band links do not support
62.5 MHz channel bandwidth, and common-band links using IFU2
boards do not support 7 MHz bandwidth.
l Relay sites for E-band links do not support service access.
Item Description
Service type Only the Native E-LAN and E-Line services are supported. The services
can be accessed from Ethernet ports or transferred from IF ports.
E-band link l When master device is RTN 905 1E/2E, the E-band devices can be
RTN 380s.When master device is RTN 905 2F, the E-band devices
can be RTN 380s or RTN 380Hs.
l Ethernet ports connecting an IDU and an RTN 380/RTN 380H must
be of the same type.
l After the RTN 380/RTN 380H is connected to the IDU, the Ethernet
and IF ports on the RTN 380/RTN 380H can no longer be configured
with services.
l An RTN 380/RTN 380H supports only one Super EPLA group.
l One RTN 380/RTN 380H can be connected to an IDU through a
maximum of two Ethernet links.
l The inband DCN function must be disabled on IF ports.
l Air-interface Ethernet bandwidth of the RTN 380:
– The maximum air-interface Ethernet bandwidth for the GE
Ethernet port is 650 Mbit/s.
– The maximum air-interface Ethernet bandwidth for the 2.5 GE
Ethernet port is 1650 Mbit/s.
– The maximum air-interface Ethernet bandwidth for all Ethernet
ports on the RTN 380 is 3350 Mbit/s.
l Air-interface Ethernet bandwidth of the RTN 380H:
– The maximum air-interface Ethernet bandwidth for the GE
Ethernet port is 650 Mbit/s.
– The maximum air-interface Ethernet bandwidth for the 2.5 GE
Ethernet port is 1650 Mbit/s.
– The maximum air-interface Ethernet bandwidth for the 10 GE
Ethernet port is 6750 Mbit/s.
– The maximum air-interface Ethernet bandwidth for all Ethernet
ports on the RTN 380H is 8250 Mbit/s.
Item Description
Service On an IDU or an RTN 380, each port has two service channel IDs, for
channel ID example, 1(PORT-1)-1 and 1(PORT-1)-2. The service channel IDs are
reserved for further expansion of Super Dual Band. In the current
version, configure the service channel ID consistently for corresponding
ports on the EM6D boards and RTN 380 containing a Super Dual Band
link. You are advised to set the service channel ID to 1.
Reserved air- During link planning, 512 kbit/s Ethernet bandwidth must be reserved for
interface each Super EPLA link to function as the protocol channel. Otherwise, the
Ethernet Super EPLA group cannot work stably.
bandwidth
Super Dual l An E-band link supports a maximum of three hops of relay links or a
Band Relay maximum of two E-band relay sites.
l The types of devices on an E-band trunk link must be the same, and
the sequence numbers of cascade ports between back-to-back NEs
must be consistent.
l Super Dual Band Relay supports two or more E-band relay hops.
Each relay hop must contain devices of the same type and have the
same number of air-interface hops.
l If Super Dual Band Relay is deployed, E-band links do not support
62.5 MHz channel bandwidth.
l Relay sites for E-band links do not support service access.
Cascade port l The cascade port can be a GE optical port or a GE electrical port.
When the slave device is an RTN 380H, the COMBO port must be
preferentially used as the cascade port.
l RTN 320 supports only one cascade port for RTN 380H cascading.
l When the slave NE uses the 1GE port to connect to an RTN 380H, the
port negotiation mode is Auto.
l When the slave NE uses the 2.5 GE or 10 GE port for interconnection
with an RTN 380H, you are advised to disable the unidirectional
operation capability of the port.
Item Description
Service type l Native E-Line, Native E-LAN, and MPLS services are supported. The
services can only be accessed from Ethernet ports.
l When the slave device is a third-party common-band device, only
E2E transparent transmission services can be configured on the third-
party common-band device.
End-to-end l When the slave device is a third-party common-band device, the end-
delay to-end delay of third-party common-band device must be smaller than
900us.
Cascading l When the slave device is an RTN 310, RTN 320 or RTN 380H, two-
mode level cascading is not supported.
Interconnectio l In the Super Dual Band solution using the combination of RTN 380H
n and a third-party common-band device, te DCN VLAN and
bandwidth of the third-party device must be configured on the port
that connects the RTN 380H to the third-party common-band device.
– This configuration must be performed based on the 256-byte
throughput that maps to the minimum modulation scheme of the
third-party device. If the throughput cannot be obtained, this
configuration must be performed based on the minimum value in
the third-party throughput range.
NOTE
The air-interface bandwidth must be higher than 20M.
– The DCN VLAN must be different from the service VLAN and
cannot be set to 0, 1, 2, 4094, or 4095.
l Super EPLA groups must be symmetrically deployed at two ends. To
be specific, the cable rate between common-band links and E-band
links must be consistently planned at two ends. Ports at both ends of a
cable or link must be configured as follows: The large port ID of one
end maps to the large port ID of the other end, and the small port ID
of one end maps to the small port ID of the other end. For example, if
port IDs at one end are ports 2 and 4 and port IDs at the other end are
ports 3 and 5, port 2 is connected to port 3 and port 4 is connected to
port 5.
l Channelized VLANs at the two ends of each member link in a Super
EPLA group must be the same.
l When the RTN 320 serves as the slave device, you are advised to use
the 2.5 GE port when the air-interface bandwidth of microwave links
is larger than 500 Mbit/s.
Reserved air- During link planning, 512 kbit/s Ethernet bandwidth must be reserved for
interface each Super EPLA link to function as the protocol channel. Otherwise, the
Ethernet Super EPLA group cannot work stably.
bandwidth
Item Description
Dependencies and Limitations Between Super Dual Band and Other Features
Table 1-10 Dependencies and limitations between super dual band and other features (the
master device is an RTN IDU 900)
Feature Description
Inband data l All common-band links in a Super EPLA group must use the same
communicatio inband DCN protocol.
n network l Air interfaces of E-band member links cannot use inband DCN.
(DCN)
RMON l Super EPLA groups support RMON statistics by group. Bytes are
count for RMON statistics by group.
l Super EPLA groups support RMON statistics by group. Segments are
count for RMON statistics by port.
1+1 protection l The Super Dual Band for the RTN 980 is compatible with 1+1
between active protection between active and standby system control, switching, and
and standby timing boards, but also with no protection for Ethernet ports on the
system control, boards.
switching, and l If 1+1 protection is configured between active and standby system
timing boards control, switching, and timing boards, it is recommended that the E-
band devices use two Ethernet links to connect Ethernet ports on the
active and standby system control, switching, and timing boards,
thereby minimizing hardware fault impacts.
1+1 l 1+1 SD couples only with the following modes of Super Dual Band:
HSB/FD/SD – MODE A mode (RTN 950/950A/980/905 2F)
– MODE A Access mode (RTN 950/RTN950A/905 1E/2E)
l The main ports in 1+1 HSB/FD/SD protection groups of RTN
950/RTN 950A are allowed to form an EPLA/EPLA+ group, but a
1+1 IF protection group must be created prior to the EPLA/EPLA+
group. In this case, a main port is calculated as two EPLA/EPLA+
members.
l The main ports in 1+1 HSB/FD/SD protection groups of RTN
950/RTN 950A are allowed to form an EPLA/EPLA+ group, but a
1+1 IF protection group must be created prior to the EPLA/EPLA+
group. In this case, a main port is calculated as two EPLA/EPLA+
members.
l Only the same type of IF board can be used in 1+1 protection and
Super Dual Band coupling scenarios.
Feature Description
HQoS l When the master device is RTN 905 1E/2E, Super Dual Band groups
do not support coupling with HQoS.
l When the master device is RTN 950/950A/980, Super Dual Band
groups do not support coupling with HQoS if Mode B applies.
CES l When the master device is RTN 905 1E/2E/2F, RTN 950 or RTN
950A, Super Dual Band groups do not support coupling with CES.
l When the master device is 980, Super Dual Band groups do not
support coupling with CES if Mode B applies.
MPLS When the master device is RTN 905 1E/2E/2F, RTN 950 or RTN 950A,
Super Dual Band groups do not support coupling with MPLS.
L3VPN When the master device is RTN 905 1E/2E/2F, RTN 950 or RTN 950A,
Super Dual Band groups do not support coupling with L3VPN or
protocols.
1588 V2 When the master device is RTN 905 1E/2E, RTN 950(CSHUF), Super
Dual Band groups do not support coupling with 1588 V2.
Table 1-11 Dependencies and limitations between super dual band and other features (the
master device is an RTN 380H)
Feature Description
Inband data l In-band DCN must be enabled on the master device but not on the
communicatio slave device.
n network
(DCN)
XPIC l In the full-outdoor Super Dual Band solution, an XPIC group can be
configured between common-band member links or E-band member
links of a Super Dual Band group. An XPIC group cannot be
configured between the member links of different frequency bands.
l In the Super Dual Band solution of hybrid networking with a third-
party common-band device, an XPIC group can be configured
between common-band member links or E-band member links of a
Super Dual Band group on Huawei microwave devices. An XPIC
group cannot be configured between the member links of different
frequency bands. XPIC can be configured on the third-party common-
band device.
PLA In the Super Dual Band solution of hybrid networking with a third-party
common-band device, PLA can be configured on the third-party
common-band device.
RMON l Super EPLA groups support RMON statistics by group. Bytes are
count for RMON statistics by group.
l Super EPLA groups support RMON statistics by group. Segments are
count for RMON statistics by port.
1.12 FAQs
This section answers FAQs about Super Dual Band.
None
2 Deployment Instructions
This section provides instructions on how to configure and commission Super Dual Band.
Figure 2-1 Flowchart for deploying Super Dual Band (the master device is an RTN IDU 900)
Figure 2-2 Flowchart for deploying Super Dual Band (the master device is an RTN 380H)
Table 2-1 General deployment process (the master device is an RTN IDU 900)
Step Operation Remarks
Table 2-2 General deployment process (the master device is an RTN 380H)
Step Operation Remarks
The flowchart for configuring Super Dual Band on the RTN 900 and RTN 300 is provided as
follows.
Table 2-3 Process of configuring Super Dual Band on the RTN 900
Step Operation Remarks
Table 2-4 Process of configuring Super Dual Band on the RTN 300
Step Operation Remarks
NOTE
The configuration procedure of a third-party device is similar to that of the slave device RTN 300.
Table 2-5 Process of configuring Super Dual Band on the RTN 380H
Step Operation Remarks
Table 2-6 Process of configuring Super Dual Band on the RTN 310/RTN 320/RTN 380H
Step Operation Remarks
NOTE
This section uses the RTN 950/950A as an example to describe the configuration of Super Dual Band.
NOTE
This section describes the configuration of Super Dual Band. In this example, the RTN 950/950A provides
Super Dual Band based on the EM6D board.
Figure 2-5 shows the networking consisting of 2+0 common-band links and a 1+0 E-band
link.
l Port 1 on the EM6D board receives/transmits an Ethernet service carrying VLAN ID
100, and Port 2 on the board receives/transmits an Ethernet service carrying VLAN ID
200.
l Links 1 and 2 are common-band links, and Link 3 is an E-band link.
l Two 2.5GE ports on the EM6D board connect to the RTN 380 for increasing the link
capacity.
Data Preparation
Parameter Value in This Example Planning Principle
SFP type Port 3 and Port 4 on the l For an EM6D board, the
EM6D board: 2.5GE port default logical types are
10GE optical ports for
Ports 1 and 2, GE optical
ports for Ports 3 to 4, and
GE electrical ports for
Ports 5 to 6. If actually
used SFP modules
provide other types of
Ports 1 to 4, delete the
default GE optical ports
and add actual ports on
the NMS.
l EM6D boards and RTN
380 must interconnect
through the same type of
ports. If port types at
both the local and remote
ends need to be changed,
change the port type at
the remote end and then
at the local end.
Super EPLA group l PLA type: S-EPLA On an EM6D board, the port
l Scheduling mode: that connects to an E-band
MODE B link must be configured as
the master port in a Super
l Master port: 5- EPLA group.
EM6D-3(Port-3)-1
l Slave ports: 5-
EM6D-4(Port-4)-1, 1-
ISV3, and 2-ISV3
l Other parameters: default
values
Procedure
Step 1 Optical port type
On Port 3, for example:
1. Delete the default GE port.
l On an EM6D board or an RTN 380, each port has two service channel IDs, for example, 1(PORT-1)-1
and 1(PORT-1)-2. The service channel IDs are reserved for further expansion of Super Dual Band
functions. In the current version, configure the service channel ID consistently for all ports on the EM6D
boards and RTN 380s consisting of a Super Dual Band link. It is advised to set the service channel ID to
1.
l When Scheduling Mode is Mode B, In hitless mode, E-band link bandwidth changes do not affect the
transmission of high-priority services. In this mode, high-priority services are transmitted on common-
band links, and low-priority services are transmitted on E-band links. However, if high-priority services
exceed the common-band link bandwidth upon a burst, the excessive traffic cannot be transmitted by E-
band links and is discarded.
l When Scheduling Mode is Mode A, In common mode, high-priority and low-priority services are
distributed to common-band and E-band links based on their link bandwidths, implementing inter-
frequency AM.
l When Scheduling Mode is Mode B, This threshold can be specified for a Super EPLA group in hitless
mode. Only an SP queue can be configured with a PHB. Services in this SP queue and other queues with
higher-priorities are high-priority services.
----End
Data Preparation
Parameter Value in This Example Planning Principle
Optical port type COMBO and GE(o) ports: l The default logical types
2.5GE ports are GE optical ports for
COMBO and GE(o)
ports, GE electrical ports
for other ports. If
actually used SFP
modules provide other
types of COMBO and
GE(o) ports, delete the
default GE optical ports
and add actual ports on
the NMS.
l EM6D boards and RTN
380 must interconnect
through the same type of
ports. If port types at
both the local and remote
ends need to be changed,
change the port type at
the remote end and then
at the local end.
Procedure
Step 1 Delete E-LAN services.
Step 4 Configure the COMBO and GE(o) ports as 2.5GE optical ports.
----End
Data Preparation
Parameter Value in This Example Planning Principle
Procedure
Step 1 Enable the inband DCN.
l Each port of the RTN 380H and RTN 320 has two service channel IDs, for example, 1(PORT-1)-1 and
1(PORT-1)-2. The service channel IDs are reserved for subsequent expansion of the Super Dual Band
function. Currently, all RTN 380H and RTN 320 ports of one Super Dual Band link hop must use the
same service channel ID. You are advised to set the service channel ID to 1.
----End
Data Preparation
Parameter Value in This Example Planning Principle
Optical port type COMBO port of the RTN l On the NMS, the
320: 2.5GE port COMBO and GE3(o)
ports of the RTN 320 are
GE optical ports by
default, and other ports
are GE electrical ports by
default. If the actually
used SFP modules of the
COMBO and GE3(o)
ports provide other types
of ports, delete the
default GE optical ports
and add actual ports on
the NMS.
l The port types of the
RTN 380H and RTN 320
must be the same. If they
are different, change the
port type at the remote
end first, and then
change the port type at
the local end.
Procedure
Step 1 Disable the inband DCN function on an IF port.
Step 3 Configure the COMBO port of the RTN 320 as a 2.5GE optical port.
1. Delete the default GE port.
----End
3 Maintenance Instructions
NOTE
Users can monitor RMON performance statistics collected by Super EPLA group only on the U2000.
Table 3-2 RMON performance events (Super EPLA group port: ISU2/ISX2/ISV3/ISM6/
EM6D/CSHNU/CSHP)
Table 3-3 RMON performance events (Super EPLA group port: IFU2)
Table 3-4 RMON performance events (Super EPLA group port: RTN 380/RTN 380H)
Performance Event Description
NOTICE
Fault point 6, that is, a fault on a Super EPLA processing board, interrupts all services. The
other fault points trigger protection switching and interrupt some services.
In this example, the RTN 950 and RTN 380 are used. Fault points of other devices are similar.
NOTE
l If a fault causes a failure of a Super EPLA group or a member in a Super EPLA group,
PLA_MEMBER_DOWN_EXT and PLA_DOWN alarms are reported.
l For details about how to handle alarms reported on fault points, see Maintenance Guide of the RTN
900 and RTN 380/RTN 380H.
NOTICE
In this example, the RTN 380H and RTN 320 are used. Fault points of other devices are
similar.
NOTE
l If a fault causes a failure of a Super EPLA group or a member in a Super EPLA group,
PLA_MEMBER_DOWN_EXT and PLA_DOWN alarms are reported.
l For details about how to handle alarms reported on fault points, see Maintenance Guide of the RTN
380H and RTN 320.
3.4.1 PLA_CFG_MISMATCH
Description
The PLA_CFG_MISMATCH alarm indicates that physical link aggregation (PLA)
configurations are inconsistent at two ends of a microwave link.
Attribute
Alarm Severity Alarm Type
Critical Service alarm
Parameters
When you view an alarm on the network management system, select the alarm. In the Alarm
Details field display the related parameters of the alarm. The alarm parameters are in the
following format: Alarm Parameters (hex): parameter1 parameter2...parameterN. For details
about each parameter, refer to the following table.
Name Meaning
Name Meaning
Name Meaning
l 0x80: Under the current or guaranteed capacities of members in an
EPLA or SDB group coupled with 1+1 protection, the air-interface
Ethernet bandwidth is smaller than the CC packet bandwidth.
NOTE
If the value of Parameter 4 is 0x06-0x0D, 0x01 or 0x02, the enhanced compression configurations for
each queue, Layer 2 header compression configuration and Layer 3 header compression configuration in
the PLA protection group may not take effect.
Possible Causes
l Cause 1: The PLA group is configured on the local NE, but not configured on the peer
NE.
l Cause 2: Frame header compression is enabled for only one NE.
l Cause 3: The number of member links in the PLA group is different at both ends.
l Cause 4: Local member ports and peer member ports do not belong to the same PLA
group.
l Cause 5: Enhanced compression is enabled for only one NE.
l Cause 6: The Super EPLA configurations are inconsistent at the two ends of the
microwave link.
l Cause 7: The CC enabling status is different on two ends of the microwave link.
l Cause 8: Under the current or guaranteed capacity of the microwave link, the air-
interface Ethernet bandwidth is smaller than the CC packet bandwidth.
Procedure
Step 1 Cause 1: The PLA group is configured on the local NE, but not configured on the peer NE.
1. Configure the PLA group on the peer NE by referring to Creating a PLA/EPLA/EPLA+/
Super EPLA Group.
Step 2 Cause 2: Frame header compression is enabled for only one NE.
1. Determine the port that needs to be re-configured. For details, see Querying the Status of
a PLA/EPLA/EPLA+/Super EPLA Group and the network plan.
2. Enable or disable frame header compression on the port to ensure configuration
consistency at both ends. For details, see Configuring Ethernet Frame Header
Compression over Air Interfaces.
Step 3 Cause 3: The number of member links in the PLA group is different at both ends.
1. Set the number of member links consistently at both ends by referring to Creating a
PLA/EPLA/EPLA+/Super EPLA Group.
Step 4 Cause 4: Local member ports and peer member ports do not belong to the same PLA group.
1. Check whether PLA configurations of the interconnected IF boards comply with the
network plan. For details, see Creating a PLA/EPLA/EPLA+/Super EPLA Group.
Option Description
If... Then...
The configurations do not comply Re-configure the PLA group according to the
with the network plan network plan.
The configurations comply with Verify the IF cable connections between the IF
the network plan boards and ODUs to make sure the radio links
are correctly established.
Step 6 Cause 6: The Super EPLA configurations are inconsistent at the two ends of the microwave
link.
1. If the NE reports the parameters 0x0E to 0x14, the Super EPLA configurations are
inconsistent at the two ends. Modify the Super EPLA configurations to ensure consistent
configurations at the two ends. For details, see Creating a Super EPLA Group.
Step 7 Cause 7: The CC enabling status is different on two ends of the microwave link.
1. Set the CC enabling status consistently at two ends of the microwave link.
Step 8 Cause 8: Under the current or guaranteed capacity of the microwave link, the air-interface
Ethernet bandwidth is smaller than the CC packet bandwidth.
1. Set the air-interface Ethernet bandwidth to a value larger than 512 (kbit/s) under the
current or guaranteed capacity.
Step 9 Check whether the alarm is cleared. If the alarm persists, contact Huawei technical support
engineers to handle the alarm.
----End
Related Information
None
3.4.2 PLA_DOWN
Description
The PLA_DOWN alarm indicates that a PLA group is faulty. This alarm is reported when the
number of active member links in a PLA group is 0 or smaller than the preset minimum
number of active member links.
NOTE
Attribute
Alarm Severity Alarm Type
Major Service alarm
Parameters
Name Meaning
Possible Causes
The number of active member links in the PLA group is 0 or smaller than the preset minimum
number of active member links.
Procedure
Step 1 Check whether the specified minimum number of active links is consistent with the network
plan. If not, re-configure the minimum number of active links. For details, see querying PLA
group status.
----End
Related Information
None
3.4.3 PLA_MEMBER_DOWN_EXT
Description
The PLA_MEMBER_DOWN_EXT alarm is reported when a member link of a Super EPLA
group is faulty.
Attribute
Alarm Severity Alarm Type
Minor QoS alarm
Parameters
Name Meaning
Parameter 1 and Indicate the ID of the Super EPLA group. For example, 0x00 0x08
Parameter 2 indicates that the protection group ID is 8. For details, see
Parameter Examples.
Parameter 3 to Indicate the NE ID. For example, 0x00 0x09 0xac 0x02 indicates
Parameter 6 that the NE ID is 9-44034. That is, parameters 3 and 4 indicate the
extended ID, and parameters 5 and 6 indicate the basic ID.
Parameter 7 and Indicate the slot ID of the board. For example, 0x00 0x01 indicates
Parameter 8 that the slot ID is 1.
Parameter 9 Indicates the slot ID of the subboard. The parameter takes a fixed
value of 0xff.
Parameter 10 and
Indicate the port ID. For example, 0x00 0x05 indicates port 5.
Parameter 11
Parameter 12 and
Indicate the path ID. For example, 0x00 0x01 indicates path 1.
Parameter 13
Parameter 14 Indicate the fault cause.
l 0x00: indicates connectivity loss.
l 0x01: indicates a remote fault.
Possible Causes
l Cause 1: The general-band microwave link in the super EPLA group at the local end is
faulty.
l Cause 2: An IF board in the super EPLA group at the local end is faulty.
l Cause 3: The E-band microwave link in the super EPLA group at the local end is faulty.
l Cause 4: The E-band device in the super EPLA group at the local end is faulty.
l Cause 5: The cascaded NE is faulty.
l Cause 6: The cascade port is faulty.
l Cause 7: Loss of connectivity occurs on a member link of the Super EPLA group.
l Cause 8: Remote defect indication exists on a member link of the Super EPLA group.
Procedure
Step 1 Cause 1: The general-band microwave link in the super EPLA group at the local end is faulty.
1. Determine the faulty IF board and microwave link based on the ID of the Super EPLA
group. For details, see querying the status of a Super EPLA group.
2. Check whether a member link of the Super EPLA group reports MW_LOF, MW_LIM,
MW_RDI, R_LOC, or R_LOF alarms. If any of the preceding alarms is reported, clear
it.
Step 2 Cause 2: An IF board in the super EPLA group at the local end is faulty.
1. Determine the faulty IF board based on the ID of the Super EPLA group. For details, see
querying the status of a Super EPLA group.
2. Check whether any IF board in the Super EPLA group reports HARD_BAD,
BD_STATUS, VOLT_LOS, WRG_BD_TYPE, or RADIO_MUTE alarms. If any of the
preceding hardware-related alarms is reported, clear it.
Step 3 Cause 3: The E-band microwave link in the super EPLA group at the local end is faulty.
1. If the NMS can access the RTN 380, troubleshoot the E-band link fault by following
instructions in "Troubleshooting Microwave Link Faults of the OptiX RTN 380
Maintenance and Fault Management.
2. If the NMS cannot access the RTN 380, troubleshoot the fault by referring to the
troubleshooting steps for Cause 4.
Step 4 Cause 4: The E-band device in the super EPLA group at the local end is faulty.
1. Check whether an ETH_LOS alarm is reported at the local end. If yes, clear the alarm
immediately. If the RTN 380 is faulty, rectify the fault by following instructions in the
OptiX RTN 380 Maintenance and Fault Management.
Step 7 Cause 7: Loss of connectivity occurs on a member link of the Super EPLA group.
1. Check for and clear the MW_LOF alarm on the local NE.
Step 8 Cause 8: Remote defect indication exists on a member link of the Super EPLA group.
1. Check for and clear the MW_RDI alarm on the local NE.
----End
Related Information
l Parameters 3 to 6 (0x00 0x09 0xac 0x02) indicate that the NE ID is 9-44034. That is,
parameters 3 and 4 indicate the extended ID, and parameters 5 and 6 indicate the basic
ID.
l Parameters 7 and 8 (0x00 0x01) indicate that the slot ID is 1.
l Parameter 9 takes a fixed value of 0xff.
l Parameters 10 and 11 (0x00 0x05) indicate that the port ID is 5.
l Parameters 12 and 13 (0x00 0x01) indicate that the path ID is 1.
l Parameter 14 (0x00) indicates that the fault cause is loss of connectivity.
3.4.4 PLA_PKT_ERR
Description
The PLA_PKT_ERR alarm indicates that packet reassembly fails in the receive direction.
Attribute
Parameters
When you view an alarm on the network management system, select the alarm. In the Alarm
Details field display the related parameters of the alarm. The alarm parameters are in the
following format: Alarm Parameters (hex): parameter1 parameter2...parameterN. For details
about each parameter, refer to the following table.
Name Meaning
Parameters 1 and 2 Indicate the ID of the PLA group.
Possible Causes
Cause 1: The clock tracing relationship is incorrectly configured for the active and standby
NEs.
Cause 2: A member link in the PLA group is faulty.
Cause 3: The local or cascaded NE has a hardware fault.
Procedure
Step 1 Check whether the clock tracing relationship is correctly configured for the active and standby
NEs. If the clock tracing relationship is incorrect, configure the clock sources again. If the
clock tracing relationship is correct, go to the next step.
Step 2 Check for MW_LOF, MW_LIM, MW_RDI, and R_LOF alarms on links in the PLA group
and clear them if any. If no such alarm is reported, go to the next step.
Step 3 Check for the HARD_BAD alarm on the local and cascaded NEs. If the local or cascaded NE
reports the HARD_BAD alarm, replace the alarmed board by following instructions in
Replacing the System Control, Switching and Timing Board.
----End
Related Information
None