H3C s5800 series Troubleshooting Manual Download Page 16 | Manualshive

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H3C s5800 series Troubleshooting Manual Download Page 16

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%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 device

Displays device information.

display interface brief

Displays brief interface information.

display transceiver interface

Displays key parameters of the transceiver module
installed in an interface.

loopback internal

Enables loopback testing on an Ethernet interface.

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Summary of Contents for s5800 series

Page 1: ...ngzhou 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...

Page 2: ...n 8 Link aggregation failure 8 Symptom 8 Troubleshooting flowchart 9 Solution 9 Related commands 10 Troubleshooting ports 13 Link up failure on a port 13 Symptom 13 Troubleshooting flowchart 13 Soluti...

Page 3: ...ii Troubleshooting flowchart 23 Solution 23 Related commands 25...

Page 4: ...enough hardware resource message Solution To resolve this problem 1 Execute the display acl resource command and then check the Remaining field for ACL resources insufficiency If this field displays...

Page 5: ...n policy Global display qos policy global Control plane display qos policy control plane slot slot number b If the QoS policy does not contain a class behavior association associate the traffic behavi...

Page 6: ...re are any configuration errors reconfigure the ACL 3 If the problem persists contact H3C Support Related commands This section lists the commands that you might use for troubleshooting ACLs Command D...

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...

Page 8: ...ings or reconnect physical ports IRF fabric size allowed Physical IRF connections consistent with IRF port bindings No Resolved IRF links up Bring up physical ports activate IRF port configuration Res...

Page 9: ...RF port bindings or reconnect the physical IRF ports 4 Verify that IRF links are 10 Gbps a Verify that the transceiver modules or cables for IRF connection are labeled with 10Gbps or SFP b Replace a t...

Page 10: ...to verify that each IRF port has at least one physical port in up state display irf Displays IRF fabric information including the member ID role priority bridge MAC address and description of each IRF...

Page 11: ...ooting Ethernet link aggregation This section provides troubleshooting information for common problems with Ethernet link aggregation Link aggregation failure Symptom Link aggregation does not operate...

Page 12: ...urations class two configurations same as the reference port Set attribute configurations class two configurations same as the reference port No Yes Set no more than 8 member ports Yes No More than 8...

Page 13: ...the configurations of the peer member ports b Configure the peer member ports to make sure the peer ports have the same attribute configurations and class two configurations as the peer port of the re...

Page 14: ...o resolve the problem Physically connected Shut down Check the port connection undo shutdown No Yes Yes No Cable is correct or transceiver module matches wavelength Replace the cable or fiber No Yes S...

Page 15: ...l use the display transceiver interface command to display the transceiver module information Sysname display transceiver interface ten gigabitethernet 1 1 1 Ten GigabitEthernet1 1 1 transceiver infor...

Page 16: ...nds This section lists the commands that you might use for troubleshooting ports Command Description display device Displays device information display interface brief Displays brief interface informa...

Page 17: ...ing error packets No Yes Yes Locate the reasons of the failure End No Yes Layer 2 packet loss Packets filtered by ACLs or QoS policies Locate the reasons and solve the failure Port blocked No Yes Port...

Page 18: ...failure To test and solve such a failure replace the transceiver module fiber or twisted pair with a good one Inconsistent configurations Verify that the configurations such as speed and duplex mode o...

Page 19: ...he display link aggregation verbose command to identify the port status When the port is an Unselected port it cannot forward traffic Locate the reasons why the port is in Unselected state For example...

Page 20: ...ts contact H3C Support Related commands This section lists the commands that you might use for troubleshooting Layer 2 packet loss failure Command Description display interface Displays Ethernet inter...

Page 21: ...ollected for an interface on a per queue basis Layer 3 forwarding failure Symptom Packet loss occurs when the switch forwards packets to a different network Troubleshooting flowchart Figure 6 Troubles...

Page 22: ...ncorrect route entries exist troubleshoot the protocol that learns the route entries If route entries are correct but the problem persists contact H3C Support Related commands This section lists the c...

Page 23: ...between the SFP port and the IRF port and re plug in the SFP module to the SFP port If the SFP port is not bound to an IRF port perform step 1 3 If the problem persists run the display diagnostic info...

Page 24: ...ical 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 power correctly Troubleshooting flowc...

Page 25: ...Update firmware on the specific PSE s successfully The output shows that the PSE processing software has been upgraded c Execute the display poe device command again to display PSE information and ch...

Page 26: ...Class 0 Port Detection Status disabled Port Power Mode signal Port Current Power 0 mW Port Average Power 0 mW Port Peak Power 0 mW Port Max Power 30000 mW Port Current 0 mA Port Voltage 0 0 V Port PD...

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