Huawei MA5600 Series FAQ: MA5603T

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2014年7月8日星期二

How to configure the system clock for Huawei MA5600 series

Here we describes how to configure the system clock to restrict the clock frequency and phase of each node on a network within the preset tolerance scope. This prevents transmission performance deterioration caused by poor timing at both the transmit and receive ends in the digital transmission system. This configuration also works for Huawei MA5603T and Huawei MA5608T.

Background Information

On a digital network comprising the MA5600 series and other devices, the primary problem is clock synchronization. To ensure that the system uses a unified clock standard, you must specify the clock signals from a certain port as the system clock source.

Procedure

1. Run the clock source command to configure the system clock source.

Specify the clock signals extracted from a certain port as the system clock source.

2. Run the clock priority command to configure the priority of the clock source.

Example

To obtain two clock sources from ports 0/5/0 and 0/5/1 of the SHEB board as clock source 0 and clock source 2 of the system, configure clock source 2 with the highest priority, and configure clock source 0 with the second highest priority, do as follows:

huawei(config)#clock source 0 0/5/0

huawei(config)#clock source 2 0/5/1

huawei(config)#clock priority sdh 2/0

2014年7月4日星期五

Introduction of Huawei MA5603T Service Shelf

The MA5603T shelf has seven slots and is installed in the cabinet through the mounting brackets. This topic provides the appearance and composition of the MA5603T shelf.

Figure 1 shows the appearance and composition of the MA5603T shelf.

Figure 1 Appearance and composition of the MA5603T shelf

Function of MA5603T shelf

The Huawei MA5603T shelf provides different functions through different service boards. This topic provides information about the functions of the MA5603T shelf.

The MA5603T shelf is 5 U high. It provides seven slots for various boards. Through the configured boards, the MA5603T shelf provides ADSL2+, SHDSL, and VDSL2 services.

The service signals are transmitted upstream through the SCU board or interface board in the MA5603T shelf. The SCU board communicates and exchanges data with the service boards thorough backplane.

Ports of the MA5603T shelf

Below we provide information about the functions of the external ports of the MA5603T and describes the connections of the external ports of the MA5603T.

Table 1 describes the ports of the MA5603T shelf.

Configuration of the MA5603T shelf

The MA5603 shelf provides 6 slots for service boards and 1 slot for control board. This topic provides the supported service types and related slots.

The MA5603 shelf provides seven slots, numbered 1-7.

Figure 1 shows the layout of the MA5603 shelf, and Table 2 lists the boards in the MA5603 shelf.

Figure 1 Layout of the MA5603 shelf

Table 2 Boards in the MA5603 shelf

Specifications of the MA5603 shelf

Table 3 lists the specifications of the MA5603 shelf.

More related topic:

Introduction of Huawei MA5600 Service Shelf(1)

Introduction of Huawei MA5600 Service Shelf (2)

The three types of N66 cabinet for Huawei MA5600

How to choose the N66 cabinet for Huawei MA5600

Huawei MA5600 Series Boards Description

2014年6月12日星期四

How to Load the Version of the Standby Control Board of the MA5600

Question

How to load the version of the standby control board of the MA5600 if the active control board functions properly?

Answer

If one of the control boards of the MA5600 is faulty, the faulty control board needs to be

replaced. In replacement, the following scenarios may occur:

l For H801SCUN, there is no need to check the versions of control boards on the live network or the version of the substitute control board. This is because the H801SCUN supports duplicating of all information to the standby control board. No manual operation is required.

l For H801SCUB, H801SCUF, or H801SCUL,

– When the version of the original control board is earlier than V800R008C01, automatic

information duplication to the standby control board is supported if the version of the

substitute control board is V800R006C02 or later. No manual operation is required.

– When the version of the original control board is V800R008C01 or later, automatic

information duplication to the standby control board is supported if the version of the

substitute control board is V800R008C01 or later. No manual operation is required.

– When the version of the original control board is V800R008C01 or later, a patch is

required for the substitute control board to support automatic information duplication

to the standby control board if the version of the substitute control board is earlier than

– V800R006C02: SPC124 or a later patch

– V800R007C00: SPC307 or a later patch

– V800R007C01: SPC307 or a later patch

– When the version of the substitute control board is earlier than V800R006C02.

automatic information duplication to the standby control board is not supported.

Therefore, manually upgrade the substitute control board to the version of the control

board on the live network for information synchronization.

More Topic for Huawei MA5600 Series:

Huawei ONT Classification

The basic configuration of OLT

Huawei SmartAX MA5600T-Global First All-in-one Access Platform

MA5680T Vs MA5683T : A Distinct Comparison

2014年6月11日星期三

Can Multicast Packets Be Carried in the PPPoE Mode on the MA5600T/MA5603T

Question

In what conditions can multicast packets be carried in the PPPoE mode on the Huawei GPON MA5600T/

MA5603T?

Answer

The prerequisite is that the multicast server supports PPPoE-encapsulated multicast streams. In addition, the MA5600T/MA5603T needs to be configured with parameters by performing the following operations:

Step 1 Run the igmp mode snooping command to set the IGMP mode of the MA5600T/MA5603T to snooping.

Step 2 Run the igmp report-proxy disable command to disable proxy of the IGMP report message of the MA5600T/MA5603T.

Step 3 If the upper-layer device cannot identify the IGMP over PPPoE packet, run the igmp echo enable command to enable the IG Default Configuration e standard Ethernet packet. Then multicast server sends the Ethernet packet to the upper-layer device.

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MA5680T Vs MA5683T : A Distinct Comparison

2014年6月10日星期二

How to Collect Traffic and Rate Statistics an ONT on the MA5600T/MA5603T

Question

On the MA5600T/MA5603T of different commercial versions, how to collect traffic and rate statistics of an ONT?

Answer

The following table lists the statistics collection modes and query commands supported by different commercial versions of the MA5600T/MA5603T.

Statistics Collection Mode	Query Command	Version
Packets count of a VLAN	display statistics vlan vlanid [ label innervlanid] V800R005C33B	V800R005C33B 118 V800R006C02S PC100 V800R007C00 V800R007C01 V800R008C01 V800R008C02 V800R008C03
Volume of traffic streams	display statistics service-port index	V800R005C33B 118 V800R006C02S PC100 V800R007C00 V800R007C01 V800R008C01 V800R008C02 V800R008C03
Huawei GPON traffic	display ont traffic portid ontid [ ontportid ]	V800R006C02S PC100 V800R007C00 V800R007C01 V800R008C01 V800R008C02 V800R008C03
Packets count of an ONT	display statistics ont portid ontid	V800R006C02S PC100 V800R007C00 V800R007C01
Traffic and packets count of an ONT	display statistics ont frameid/slotid portid ont-id	V800R008C01 V800R008C02 V800R008C03
Traffic of a PON port	display port traffic portid	V800R007C00 V800R007C01 V800R008C01 V800R008C02 V800R008C03

2014年4月23日星期三

ONU Frequently Goes Online and Offline(2) - Unmatched Optical Fiber Connectors

SmartAX MA5600T/MA5603T Multi-service Access Module Troubleshooting: ONU Frequently Goes Online and Offline: TC-C6311 An ONT Frequently Goes Online and Offline Because of Unmatched Optical Fiber Connectors

This topic describes how to troubleshoot the fault when the deployed ONT frequently goes online and offline because the optical fiber connectors do not match.

Fault Description

When an ONT is installed in the deployment, the optical path attenuation is -23 dBm, which is within the normal attenuation range. After the optical fibers are connected, the LED of the PON port blinks. In addition, the ONT fails to register with the OLT normally, and the ONT goes online and offline frequently.

Alarm Information

The up and down alarms about the ONT (OT928) are generated on the OLT.

Cause Analysis

l The optical path attenuation is very large.

l The optical fiber connectors are not clean or not connected properly.

Procedure

Step 1 Use an optical power meter to measure the optical path attenuation. It is found that the optical path attenuation is -23 dBm, which is within the normal range of the optical path attenuation.

Step 2 It is suspected that the poor quality of optical signals is caused by the dirty optical fiber connectors of the ONT (OT928). Clean the optical fiber connectors, and remove and then insert the optical fiber connectors again. The fault, however, persists.

Step 3 Replace the ONT with another ONT (OT928) to conduct a test. The fault, however, persists, which indicates that the hardware of the ONT (OT928) is normal.

Step 4 Check the fiber patch cord of the ONT (OT928). It is found that the connector of the fiber patch cord does not match the optical fiber connector of the ONT. Though the connector of the fiber patch cord is square, the color is different. After verification, the optical fiber connectors used in the ONT (OT928) are green, square, and SC/APC.

NOTE

The BOM is 14130252, and the name is Patch Cord, SC/APC-FC/PC, Singlemode-G.652, 3mm, 3m.

Step 5 Replace the fiber patch cord with a correct fiber patch cord (SC/APC-FC/PC). As a result, the LED of the PON port is stable, and the ONT can register with the OLT normally.

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Suggestion and Conclusion

Currently, the type of the fiber patch cord used in the ONT (OT928) is seldom used in China, but is mostly used abroad. Therefore, note that you should use the correct fiber patch cord.

The greatest difference between green and blue fiber patch cords is as follows: The

interconnection section between the fiber patch cord with green connectors and the OT928 is oblique. The interconnection section between the fiber patch cord with blue connectors and the ONT is plane, which can result in 3-6 dBm optical attenuation.

2014年4月22日星期二

ONU Frequently Goes Online and Offline(1) - Unstable Voltage

SmartAX MA5600T/MA5603T Multi-service Access Module Troubleshooting: ONU Frequently Goes Online and Offline:

The ONU frequently going online and offline failure is a fault in which an ONU connected to a PON port of an OLT frequently goes online and offline and therefore the OLT reports a large number of ONU LOS and ONU signal recovery alarms.

There are several reasons if the ONU frequently goes online and offline, we will tell the detailed on this blog.

1 TC-C6007 An ONU Goes Online and Offline Repeatedly Because of

Unstable Voltage

This topic describes how to troubleshoot the fault when an ONU goes online and offline

repeatedly and alarms that the ONU goes online and offline repeatedly are generated on the OLT because of unstable voltage.

Fault Description

An ONU connected to an OLT in an office goes online and offline repeatedly and irregularly.

Alarm Information

Alarms that the ONU goes online and offline repeatedly are generated on the OLT.

Cause Analysis

l The optical fiber attenuation is very large.

l The hardware of the ONU is faulty.

l The boards on the OLT are faulty.

Procedure

Step 1 Other ONUs connected to the PON port are normal, which indicates that the PON board of the OLT is normal.

Step 2 Use an optical power meter to test the optical fiber attenuation on the ONU side. It is found that the optical fiber attenuation is -20 dB, which is normal. This indicates that the line is normal.

Step 3 Replace the ONU with another ONU. The fault, however, persists, which indicates that the hardware of the ONU is normal.

Step 4 The ONU on which the fault occurs is located in a remote mountain area. Therefore, it is suspected that the fault is caused by the surroundings. Log in to the ONU in the telnet mode, and then run the display alarm list all command to carefully view the alarms. It is found that the ONU resets in peak hours from 7:00 a.m. to 8:00 p.m. in four consecutive days. Therefore, it can be preliminarily determined that the fault is caused by the voltage.

Step 5 Use a multimeter to test the voltage on site. It is found that the ONU resets repeatedly due to unstable voltage. Replace the ONU with another ONU with the DC module. As a result, the fault is rectified.

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Suggestion and Conclusion

The ONUs of Huawei support AC power supply and DC power supply. If an ONU uses the AC power supply, the ONU resets repeatedly when the voltage is unstable. If the voltage is abnormal and the normal voltage cannot be guaranteed, it is recommended that you use an ONU with the DC module.