Huawei V200R001C01 - Xdsl Troubleshooting

Internet protocol processing : disabled
Link layer protocol is PPP, loopback is detected
LCP closed
The Vendor PN is HFBR-57E0P
The Vendor Name is AVAGO
Port BW: 155M, Transceiver max BW: 155M, Transceiver Mode: MultiMode
WaveLength: 1310nm, Transmission Distance: 2000m
Physical layer is Packet Over SDH
Scramble enabled, clock master, CRC-32, loopback: local
Flag J0 "NetEngine "
Flag J1 "NetEngine "
Flag C2 22(0x16)
SDH alarm:
section layer: none
line layer: none
path layer: none
SDH error:
section layer: B1 22
line layer: B2 94 REI 145
path layer: B3 44 REI 86
Statistics last cleared:never
Last 300 seconds input rate 56 bits/sec, 0 packets/sec
Last 300 seconds output rate 56 bits/sec, 0 packets/sec
Input: 40530 packets, 890400 bytes
Input error: 0 shortpacket, 0 longpacket, 2 CRC, 0 lostpacket
Output: 36512 packets, 946612 bytes
Output error: 0 lostpackets
Output error: 0 overrunpackets, 0 underrunpackets
l If loopback is detected is displayed, it indicates that a loop occurs on the link. You need
to locate the cause of the loop and eliminate the loop.
l If no loop occurs but the fault persists, go to Step 5.
Step 5 Check that the link delay is tolerant.
Use a tester to test the link delay. On a Huawei router, the transmission of a PPP packet times
out in 3 seconds, and the timeout period is configurable. The link delay must be smaller than the
timeout period.
l If the link delay is too long, replace or maintain the relevant device.
l If the link delay is tolerant but the fault persists, go to Step 6.
Step 6 Collect the following information and contact Huawei technical support personnel.
l Results of the preceding troubleshooting procedure
l Configuration files, log files, and alarm files of the devices
----End
Relevant Alarms and Logs
Relevant Alarms
None.
Relevant Logs
None.
5.8 xDSL Troubleshooting
This chapter describes how to locate and troubleshoot common xDSL faults with examples.
Huawei AR2200-S Series Enterprise Routers
Troubleshooting 5 WAN
Issue 01 (2012-01-06) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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