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H3C MSR Routers 
Troubleshooting Guide 

 

H3C MSR 810 routers (centralized devices) 
H3C MSR 2600 routers (centralized devices) 
H3C MSR 3600 routers (centralized devices) 
H3C MSR 5600 routers (distributed devices) 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Document version: 6W100-20200112  
 

Copyright © 2020 New H3C Technologies Co., Ltd. All rights reserved. 
No part of this manual may be reproduced or transmitted in any form or by any means without prior written consent of New 
H3C Technologies Co., Ltd. 
Except for the trademarks of New H3C Technologies Co., Ltd., any trademarks that may be mentioned in this document are 
the property of their respective owners. 
The information in this document is subject to change without notice. 

Summary of Contents for MSR Series

Page 1: ...Copyright 2020 New H3C Technologies Co Ltd All rights reserved No part of this manual may be reproduced or transmitted in any form or by any means without prior written consent of New H3C Technologie...

Page 2: ...ooting E1 and T1 interfaces 10 Common E1 and T1 interface issue troubleshooting methods 10 Troubleshooting the hardware 10 Troubleshooting the cables 10 Troubleshooting the configuration 11 Troublesho...

Page 3: ...ng information Physical evidence of failure Photos of the hardware Status of the card power and fan status LEDs Steps you have taken such as reconfiguration cable swapping and rebooting Output from th...

Page 4: ...re full Collecting common log messages Collecting common log messages on a standalone centralized device Save common log messages from the log buffer to a log file By default the log file is saved in...

Page 5: ...save The contents in the log file buffer have been saved to the file cfa0 logfile logfile8 log 2 Identify the log file on each MPU Display the log file on the active MPU in standalone mode or global a...

Page 6: ...ysname diagnostic logfile save The contents in the diagnostic log file buffer have been saved to the file cfa0 diagfile diagfile18 log 2 Identify the log file on each member device Display the log fil...

Page 7: ...on by using FTP TFTP or USB Details not shown Collecting operating statistics You can collect operating statistics by saving the statistics to a file or displaying the statistics on the screen When yo...

Page 8: ...al enter n at the prompt Save or display diagnostic information Y save N display Y N n display alarm No alarm information display boot loader Software images on slot 0 Current software images cfa0 MSR...

Page 9: ...lex mode of the local end match the speed and duplex mode of the peer end Verify that the cable and interface are operating correctly by viewing the packet statistics of the interface Verify that the...

Page 10: ...xecute the display hardware internal module interface name interface number statistics command in probe view to collect the interface statistics Execute the display hardware internal module interface...

Page 11: ...4 Contact H3C Support Related commands This section lists the commands that you might use for troubleshooting Ethernet interfaces Command Description display interface Displays Ethernet interface inf...

Page 12: ...loopback local command on the E1 T1 interface or execute the fe1 ft1 loopback local command on the E1 F T1 F interface b Identify whether the interface comes up physically and identify whether the log...

Page 13: ...need to compensate the signal or connect an external CSU The router provides the cable command to set the attenuation or length for the transmission line of an interface This command configures the w...

Page 14: ...the master clock and both local and peer E1 interfaces use the slave clock mode Figure 1 Clock scheme when the transmission network provides a clock When the transmission network does not provide a cl...

Page 15: ...cable is as thick and short as possible Do not use aluminum cables Make sure both ends of the grounding cable have good electric contact and have antiseptic and antirust processing Do not use other de...

Page 16: ...wer supply you can use the PE wire of the AC power supply for grounding as shown in Figure 4 Make sure the PE wire of the AC power supply is well grounded in the electric distribution room or the AC p...

Page 17: ...el tube into the earth to serve as a grounding conductor The cross section of the angle iron must be no smaller than L W H 50 50 5 mm and the thickness of the steel tube must be no smaller than 3 5mm...

Page 18: ...rounding cables of these devices to the grounding strip of the cabinet for common grounding If the interconnected devices are placed in the same equipment room and not far from each other you can join...

Page 19: ...ice Purpose Verify that the line between Router1 and transmission device 1 is normal Looping point 4 Method Form a leftwards loop on transmission device 2 Purpose Verify that the transmission network...

Page 20: ...es sec 0 bits sec 0 00 packets sec Last 300 seconds output rate 0 00 bytes sec 0 bits sec 0 00 packets sec Input 12 packets 156 bytes 0 broadcasts 0 multicasts 0 errors 0 runts 0 giants 0 CRC 0 align...

Page 21: ...nd the link layer protocol comes up and go down Solution To resolve this issue 1 Troubleshoot the hardware 2 Troubleshoot the cables 3 Troubleshoot the configuration 4 Troubleshoot the clocks 5 Troubl...

Page 22: ...provides troubleshooting information for common problems with IPsec Failure to negotiate IPsec SAs through IKE Symptom Network diagram 168 201 0 0 10 1 1 1 10 1 1 2 168 68 2 200 MSR G1 MSR G2 MSR G1 a...

Page 23: ...ply packet from the peer the second packet for negotiation Nov 7 09 23 09 516 2014 ROUTER IKE 7 DEBUG ICOOKIE 0xb8a20d7c014806fa Nov 7 09 23 09 566 2014 ROUTER IKE 7 DEBUG RCOOKIE 0x67a9145eb46c41d9 N...

Page 24: ...gotiation failed Nov 7 09 23 24 973 2014 ROUTER IKE 7 DEBUG exchange setup R 9c16530 Nov 7 09 23 25 024 2014 ROUTER IKE 7 DEBUG exchange check checking for required INFO Nov 7 09 23 25 124 2014 ROUTER...

Page 25: ...03 05 983 2014 ROUTER IKE 7 Packet Received packet from 10 1 1 1 source port 500 destination port 500 The device received the first packet for phase 2 negotiation Nov 6 17 03 05 984 2014 ROUTER IKE 7...

Page 26: ...figured and make sure the ACL rules on one device are the mirror images of the rules on the peer device For example on IPsec peers A and B if the ACL rule in the IPsec policy on device B is b a the AC...

Page 27: ...standard PPPoE network the MSR router acts as a PPPoE server and the CAMS server acts as an authentication server Client authentication failed The client carries an incorrect username not assigned by...

Page 28: ...outer has no problems 2 Troubleshoot the dialup mode of the small home router A small home router typically uses the automatic dialup method At first the router uses the normal dialup mode If the dial...

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