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H3C S5560-EI Switch Series Troubleshooting

Guide

Copyright © 2015 Hangzhou 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 Hangzhou H3C Technologies Co., Ltd.
The information in this document is subject to change without notice.

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Summary of Contents for S5560-EI series

Page 1: ...zhou 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 Hangzhou H3C Technologies Co Ltd T...

Page 2: ...bleshooting flowchart 8 Solution 8 Fan tray failure 9 Symptom 9 Troubleshooting flowchart 9 Solution 9 Related commands 10 Troubleshooting ACL 11 ACL application failure with an error message 11 Sympt...

Page 3: ...example CRC errors on a port 32 Symptom 32 Troubleshooting flowchart 32 Solution 32 Failure to receive packets 34 Symptom 34 Troubleshooting flowchart 34 Solution 35 Failure to send packets 36 Sympto...

Page 4: ...iii Solution 50 Related commands 51 Protocol flapping 51 Symptom 51 Troubleshooting flowchart 51 Solution 52 Fan failure 52 Symptom 52 Troubleshooting flowchart 53 Solution 53 Related commands 54...

Page 5: ...LEDs Measures you have taken such as reconfiguration cable swapping and reboot Output from the commands executed during the troubleshooting process To ensure safety wear an ESD preventive wrist strap...

Page 6: ...Hardware entries Collecting common log messages 1 Save the common log messages from the log buffer to a log file By default the log file is saved in the logfile directory of the Flash memory on each m...

Page 7: ...free 3 Transfer the files to the desired destination by using FTP TFTP or USB Details not shown Collecting operating statistics You can collect operating statistics by saving the statistics to a file...

Page 8: ...26 01 UTC Tue 01 01 2015 display version H3C Comware Software Version 7 1 045 ESS 1107 Copyright c 2004 2014 Hangzhou H3C Tech Co Ltd All rights reserved H3C S5560 54C PWR EI uptime is 0 weeks 0 days...

Page 9: ...nformation for common hardware problems NOTE This section describes how to troubleshoot unexpected switch reboot power module failure and fan tray failure To troubleshoot ports see Troubleshooting por...

Page 10: ...you cannot access the CLI go to step 2 2 Verify that the system software image on the switch is correct Log in to the switch through the console port and restart the switch If the system reports that...

Page 11: ...ode Current A Voltage V Power W 1 Normal 2 Absent If the power module is in Absent state go to step 2 If the power module is in Fault state go to step 3 2 Remove and reinstall the power module to make...

Page 12: ...al state If the power module remains in Fault state go to step c c Install the power module into an empty power module slot Then execute the display power command to verify that the power module has c...

Page 13: ...lot Then execute the display power command to verify that the power module has changed to Normal state in the new slot If the power module remains in Absent state go to step 4 3 Remove and install the...

Page 14: ...rature continues to rise put your hand at the air outlet vents to feel if air is being expelled out of the air outlet b If no air is being expelled out of the air outlet vents remove and reinstall the...

Page 15: ...o displays the Reason Not enough hardware resource message Troubleshooting flowchart Figure 5 Troubleshooting an ACL application failure Solution To resolve the problem 1 Execute the display qos acl r...

Page 16: ...tion Choose a solution depending on the module that uses the ACL ACL used in a QoS policy To resolve the problem when the ACL is used in a QoS policy 1 Verify that the QoS policy is configured correct...

Page 17: ...it If the ACL is configured correctly go to step 3 3 If the problem persists contact H3C Support ACL used in a packet filter To resolve the problem when the ACL is used in a packet filter 1 Verify th...

Page 18: ...to interfaces Figure 8 Traffic path a Configure a QoS policy according to the traffic characteristics This example uses destination IP address 2 2 2 2 Sysname system view System View return to User V...

Page 19: ...itEthernet 1 0 1 of Device B Sysname GigabitEthernet1 0 1 display qos policy interface gigabitethernet 1 0 1 Interface GigabitEthernet1 0 1 Direction Inbound Direction Inbound Policy count Classifier...

Page 20: ...S and ACL resource usage display qos policy control plane Displays information about the QoS policies applied to the specified control plane display qos policy global Displays information about global...

Page 21: ...17 Troubleshooting IRF This section provides troubleshooting information for common problems with IRF IRF fabric establishment failure Symptom An IRF fabric cannot be established...

Page 22: ...es You cannot add the device to the IRF fabric or complete IRF merge Yes No Member ID unique Modify IRF port bindings or reconnect physical interfaces Number of members fewer than the upper limit IRF...

Page 23: ...the IRF port bindings d If there are binding errors or connection inconsistencies reconfigure the IRF port bindings or reconnect the physical IRF ports 4 Verify that the IRF links are 10 Gbps or 40 Gb...

Page 24: ...tact H3C Support Related commands This section lists the commands that you might use for troubleshooting IRF Command Description display interface Displays interface information Use this command to ve...

Page 25: ...tion This section provides troubleshooting information for common problems with Ethernet link aggregation Link aggregation failure Symptom Some member ports fail to be placed in Selected state and lin...

Page 26: ...ilure Solution To resolve the problem 1 Verify that all physical connections are correct You can verify the physical connections against your network plan 2 Verify that all member ports are up a Execu...

Page 27: ...y and attribute configurations as the peer port of the reference port 6 Verify that the number of member ports in the aggregation group does not exceed the configured maximum number of Selected ports...

Page 28: ...24 Commands Description link aggregation selected port maximum Configure the maximum number of Selected ports allowed in an aggregation group...

Page 29: ...Troubleshooting ports This section provides troubleshooting information for common port problems Fiber port remains in down state Symptom A fiber port SFP port SFP port or QSFP port remains in down st...

Page 30: ...d duplex mode of the local port match the speed and duplex mode of the peer port a Execute the display interface brief command to examine whether the speed and duplex mode of the port match the speed...

Page 31: ...splay the alarms present on the transceiver module The device displays None if no error occurs The device displays alarms if the transceiver module fails or the type of the transceiver module does not...

Page 32: ...her the speed and duplex mode of the port match the speed and duplex mode of the peer port The switch does not support the half duplex mode If the switch and its peer operate in half duplex mode after...

Page 33: ...gabitEthernet1 0 25 This transceiver is NOT sold by H3C H3C therefore shall NOT guarantee the normal function of the device or assume the maintenance responsibility thereof Troubleshooting flowchart F...

Page 34: ...bitEthernet2 0 25 transceiver device a0 register information 0000 03 04 07 00 00 00 02 00 0008 00 00 00 03 0d 00 64 00 0010 00 00 00 00 48 69 73 65 0018 6e 73 65 20 20 20 20 20 0020 20 20 20 20 00 00...

Page 35: ...the transceiver module is an H3C transceiver module If it is not replace it with an H3C transceiver module 2 Execute the display transceiver interface command to save the transceiver module informatio...

Page 36: ...the problem 1 Examine the error frame statistics and identify the error frame type a Optional Use the reset counter interface command in user view to clear the packet statistics of the port This comm...

Page 37: ...module is not within the correct range replace the transceiver module with a transceiver module of the same model that is operating correctly 3 Verify that the port configurations are correct a Execu...

Page 38: ...traffic processing capability of the local device and the peer device 6 If you determine that the configurations the peer port and the link are correct but the problem persists perform the following...

Page 39: ...utput from the display interface command is accumulating you can determine that the port can receive packets d If the port is configured with STP use the display stp brief command to verify that the p...

Page 40: ...is up but it cannot send packets Troubleshooting flowchart Figure 17 Troubleshooting the failure to send packets Solution To resolve the problem 1 Examine the packet statistics of the port a Optional...

Page 41: ...or disable STP on the port if it is directly connected to a terminal f If the port is assigned to an aggregation group use the display link aggregation summary command to verify that the status of the...

Page 42: ...link aggregation summary Displays the summary information for all aggregation groups display logbuffer Displays the state of the log buffer and the log information in the log buffer display stp brief...

Page 43: ...ing high CPU utilization Solution To resolve the problem 1 Execute the display cpu usage command multiple times to display CPU usage information Details not shown 2 Identify the job with a high CPU ut...

Page 44: ...erage CPU usage values of jobs during the last 5 second 1 minute and 5 minute intervals Typically the average CPU usage of a job is approximately 5 3 Display the job s stack The following example was...

Page 45: ...do_exit 0x0 0x818 ffffffff 0xffffffff Sysname probe 4 Use the display diagnostic information command to collect diagnostic information 5 Save the information displayed in the previous steps 6 Contact...

Page 46: ...350 360 1024 8 15 4 24 24 kmalloc 1024 0 0 656 0 12 2 0 0 MFW_FsCache 0 0 80 0 46 1 0 0 PBR_INSTANCENODE_cachep 0 0 160 4 21 1 0 0 kioctx 0 0 168 0 23 1 0 0 IPCIM_ENTRY_IPV4_cachep More Each value lin...

Page 47: ...splays the CPU usage statistics for jobs display system internal kernel memory pool Displays memory block usage statistics follow job job id Displays the stack of a job Troubleshooting other problems...

Page 48: ...e been received on the local port Execute the display interface command and check for error packets Sysname probe display interface GigabitEthernet 1 0 17 GigabitEthernet1 0 17 Current state UP Line p...

Page 49: ...overruns 0 aborts ignored parity errors Output total 0 packets 0 bytes 0 unicasts 0 broadcasts 0 multicasts 0 pauses Output normal 0 packets bytes 0 unicasts 0 broadcasts 0 multicasts 0 pauses Output...

Page 50: ...ge10 no no 0x4b 3 up GE1 0 13 0 14 ge13 no no 0x4c 3 down GE1 0 14 0 13 ge12 no no 0x4d 3 down GE1 0 15 0 16 ge15 no no 0x4e 3 down GE1 0 16 0 15 ge14 no no 0x4f 3 up GE1 0 17 0 18 ge17 no no 0x50 3...

Page 51: ...he way the binding entries are created Determine whether the port is configured with the portal authentication If portal authentication is configured packets of users that fail to pass the portal auth...

Page 52: ...entry delete the entry To delete the blackhole MAC address entry execute the undo mac address blackhole mac address vlan vlan id command Rate limit Execute the display qos lr interface command to disp...

Page 53: ...plays information about 802 1X display mac forced forwarding vlan Displays the MFF configuration information for a VLAN display link aggregation verbose Displays detailed information about the aggrega...

Page 54: ...the arp static command to configure static ARP entries b Execute the display mac address command to verify that the output interfaces in the MAC address entries and ARP entries are the same If the ou...

Page 55: ...e routes in the routing table display mac address Display MAC address entries display fib Display FIB entries Protocol flapping Symptom The switch cannot send or receive protocol packets Troubleshooti...

Page 56: ...0 S On SMAC 8 4 VRRP 0 0 0 1024 S On SMAC 8 5 UNKNOWN_IPV4MC 0 0 0 100 S On SMAC 8 6 UNKNOWN_IPV6MC 0 0 0 100 S On SMAC 8 7 IPV4_MC_RIP 0 0 0 150 D On SMAC 8 8 IPV4_BC_RIP 0 0 0 150 D On SMAC 8 9 MCAS...

Page 57: ...nDirectionFault Wind Direction Port to Power Prefer Wind Direction Power to Port FAN 2 State FanDirectionFault Wind Direction Port to Power Prefer Wind Direction Power to Port b If the airflow directi...

Page 58: ...orrectly check whether the fans are damaged If the fan status is fault replace the fan tray 3 If the problem persists contact H3C Support Related commands This section lists the commands that you migh...

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