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H3C s5800 series Troubleshooting Manual

Summary of s5800 series

  • Page 1

    H3c s5820x & s5800 switch series troubleshooting guide copyright © 2014 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...

  • Page 2

    I contents introduction ··································································································································································· 1 troubleshooting acl ··························································································...

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    Ii troubleshooting flowchart ···································································································································· 23 solution ······························································································································...

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    1 introduction this document is not specific to any software version or device model. Troubleshooting acl this section provides troubleshooting information for common problems with acls. Acl application failure with an error message symptom the system fails to apply a packet filter or acl-based clas...

  • Page 5

    2 troubleshooting flowchart figure 1 troubleshooting an acl application failure solution 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 correctly: a. Use on...

  • Page 6

    3 − if they are configured incorrectly, reconfigure them. − if they are configured correctly, go to step 2. 2. Verify that the acl is configured correctly. Execute the display acl command to check whether the acl is configured correctly. { if the acl is configured incorrectly, reconfigure it. { if t...

  • Page 7

    4 troubleshooting irf this section provides troubleshooting information for common problems with irf. Irf fabric establishment failure symptom an irf fabric cannot be established..

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    5 troubleshooting flowchart figure 2 troubleshooting irf fabric establishment failure no yes no yes no yes end irf fabric setup failed no no yes yes contact h3c support no yes resolved? No yes yes no yes no yes remove excess member chassis yes no all member ids are unique? Modify bindings or reconne...

  • Page 9

    6 solution to resolve the problem: 1. Verify that the number of member chassis does not exceed the upper limit (nine). If you are adding new chassis to an existing irf fabric, use the display irf command to identify the number of member chassis already in the chassis. 2. Verify that the member id of...

  • Page 10

    7 note: typically the irf auto-update enable command can automatically synchronize a member chassis with the software version of the master chassis. However, the synchronization might fail when the gap between the software versions is large. 7. If the problem persists, contact h3c support. Related c...

  • Page 11

    8 troubleshooting ethernet link aggregation this section provides troubleshooting information for common problems with ethernet link aggregation. Link aggregation failure symptom link aggregation does not operate correctly..

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    9 troubleshooting flowchart figure 3 troubleshooting link aggregation failure 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: are all physical connections ...

  • Page 13

    10 a. Execute the display interface command to display the status of the member ports. B. If the member ports are down, follow the solution in " link up failure on a port " to troubleshoot the problem. 3. Verify that the member ports have the same attribute configurations and class-two configuration...

  • Page 14

    13 troubleshooting ports this section provides troubleshooting information for common problems with ports. Link up failure on a port symptom a port cannot go up when the port is connected to another port. Troubleshooting flowchart figure 4 troubleshooting link up failure on a port solution to resolv...

  • Page 15

    14 1. Verify that the physical connection of the port is correct: a. Unplug and then plug in the network cable of the port. B. Verify that the port is up. 2. Verify that the port is not shut down: a. Execute the display interface brief command. B. Check whether adm appears in the second column of th...

  • Page 16

    15 %apr 26 12:40:25:531 2000 60cpwr ifnet/4/link updown: gigabitethernet1/0/2: link status is down loop internal succeeded! 7. If the problem persists, contact h3c support. Related commands this section lists the commands that you might use for troubleshooting ports. Command description display devi...

  • Page 17

    16 troubleshooting other problems layer 2 forwarding failure symptom layer 2 packet loss occurs between two devices on the same network segment and in the same vlan. Troubleshooting flowchart figure 5 troubleshooting layer 2 packet loss failure incoming error packets? No yes yes locate the reasons o...

  • Page 18

    17 solution to solve the problem: 1. Verify that no error packets have been received on the local port: a. Execute the display interface command and check for error packets. Display interface gigabitethernet1/0/36 gigabitethernet1/0/36 current state: up ip packet frame type: pktfmt_ethnt_2, hardware...

  • Page 19

    18 ipv6 source binding command. If ip source guard is configured but the packets match no entry, further troubleshoot the problem based on the way the binding entries are created. − portal authentication—when portal authentication is configured, the port discards the packets of unauthenticated users...

  • Page 20

    19 blackhole mac address 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 display the rate limit configuration on the port. If rate limit is config...

  • Page 21

    20 command description display mac-address blackhole displays blackhole mac address entries. Display qos lr interface displays the rate limit configuration and statistics on a specified interface or all the interfaces. Display qos queue-statistics interface displays traffic statistics collected for ...

  • Page 22

    21 2. Verify that arp entries are correct by using the display arp command: { if incorrect arp entries exist, execute the debugging arp packet command to locate the problem. { if the switch learns no arp entries, you can execute the arp static command to configure static arp entries. { if arp entrie...

  • Page 23

    22 troubleshooting flowchart figure 7 troubleshooting sfp+ port failure solution to resolve the problem: 1. Verify that the optical fibers and transceiver modules on the two ends match and are not faulty by replacing them with correct and matching optical fibers and transceiver modules. 2. Execute t...

  • Page 24

    23 commands description display irf configuration displays basic irf settings, including the current member id, new member id, and physical ports bound to the irf ports on each irf member device. The new member ids take effect at reboot. Poe power supply anomaly symptom the poe device cannot supply ...

  • Page 25

    24 for the s5800-60c-pwr, use the poe power according to the poe power supply scheme. For information about the power supply compatibility, see h3c s5800-60c-pwr ethernet switch hot swappable power module ordering guide. 2. Execute the following commands to display power supply information: a. Execu...

  • Page 26

    25 if the current power, average power, and peak power of the pse are close to or reach the maximum power of the pse, use poe power with higher-wattage supply. If the pse pd-policy mode field displays disable, execute the poe legacy enable pse command to enable nonstandard pd detection by the pse. E...