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H3C S5830 Series, Troubleshooting Manual

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H3C S5830 Series Troubleshooting Manual Download Page 16

13 

Troubleshooting flowchart 

Figure 3

 

Troubleshooting link up failure on a port 

 

 

Solution 

To resolve the problem: 

1.

 

Verify that the speed and duplex mode of the local port match the speed and duplex mode of the 
peer port: 

Speed/duplex

match on local and peer 

port?

Network cable correct?

Configure matching 

speed/duplex

Resolved?

Replace network 

cable

Contact H3C Support

A port failed to go up

No

Yes

No

Yes

Resolved?

No

Yes

Yes

No

End

Local port

operating correctly?

Replace local port

Resolved?

No

Yes

Yes

No

Peer port

operating correctly?

Replace peer port

Resolved?

No

Yes

Yes

No

Summary of Contents for S5830 Series

Page 1: ...hou 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 Th...

Page 2: ...management 10 Temperature alarming 11 Symptom 11 Troubleshooting flowchart 11 Solution 11 Related commands 12 Troubleshooting ports 12 10 100 1000Base T copper port fails to go up 12 Symptom 12 Troub...

Page 3: ...lure 34 Symptom 34 Troubleshooting flowchart 35 Solution 35 Related commands 36 Troubleshooting QoS and ACL 37 ACL application failure for unsupported ACL rules 37 Symptom 37 Troubleshooting flowchart...

Page 4: ...nto a diag file in the flash memory If the free space of the flash memory is larger than 10 MB H3C recommends that you enter y to save diagnostic information into a diag file After you enter y the fol...

Page 5: ...rminal or Telnet window If you are using the console port the information collection process takes about 20 minutes If you are using Telnet the information collection process takes about 3 minutes Aft...

Page 6: ...ory usage of the device exceed 60 display memory slot OK NOK Not related If the memory usage exceeds 60 execute the display memory command to view memory usage and troubleshoot the module that occupie...

Page 7: ...sceiver module or pigtail fiber or clean the connector of the transceiver module Trunk port configurations Is the undo port trunk permit vlan 1 command configured on the trunk port display current int...

Page 8: ...mmunicate with the Cisco device running PVST Verify that STP calculation on each device is correct OK NOK Not related To avoid communication between the H3C device running MSTP STP RSTP and the Cisco...

Page 9: ...Does severe route flapping occur Use the display ip routing table statistics command to examine the number of added and deleted routes OK NOK Not related If route flapping occurs locate the flapping r...

Page 10: ...and temperature alarms see Troubleshooting system management and Troubleshooting ports Unexpected switch reboot Symptom The switch reboots unexpectedly when it is operating Troubleshooting flowchart F...

Page 11: ...memory is automatically set to the current system software image during the BootWare loading process 3 If the problem persists contact H3C Support Operating power supply failure Symptom A trap is gen...

Page 12: ...o to step 3 2 A newly installed power supply might run into Absent state when it is not securely installed a Remove and reinstall the power supply to make sure the power supply is installed securely T...

Page 13: ...om the air outlet If there is no air being exhausted from the air outlet remove and reinstall the fan tray Then execute the display fan command to verify that the fan tray has changed to Normal state...

Page 14: ...dissipation measures If the device temperature is too high go to step 2 2 Use the display fan command to verify that the fan tray is operating correctly If the system displays Fault see H3C S5830 Swi...

Page 15: ...ing the current temperature and the temperature alarm thresholds display fan Displays the operating status of all fan trays on the switch temperature limit Sets temperature alarm thresholds Troublesho...

Page 16: ...nd duplex mode of the peer port Speed duplex match on local and peer port Network cable correct Configure matching speed duplex Resolved Replace network cable Contact H3C Support A port failed to go u...

Page 17: ...plex mode for the port 2 Replace the network cable with a new one to verify that the network cable is in good condition 3 Replace the local port with a new one to verify that the local port is operati...

Page 18: ...tching speed duplex Resolved Configure matching speed duplex A port failed to go up No Yes No Yes Resolved No Yes Yes No Transceiver module correct Replace transceiver module Resolved No Yes Yes No Fi...

Page 19: ...type of the transceiver module does not match the port type b Use an optical power meter to verify that the Tx power and Rx power of the transceiver module are stable and are within the correct range...

Page 20: ...17 10 Gigabit SFP fiber port fails to go up Symptom A 10 Gigabit SFP fiber port cannot go up...

Page 21: ...igure matching speed duplex Resolved Configure matching speed duplex A port failed to go up No Yes No Yes Resolved No Yes Yes No Transceiver module cable correct Replace transceiver module cable Resol...

Page 22: ...he local port cannot go up replace the local port with a new one to verify that the local port is operating correctly 4 Verify that the transceiver module is operating correctly a Execute the display...

Page 23: ...ersists execute the display diagnostic information command to save the diagnostic information and contact H3C Support H3C display diagnostic information Save or display diagnostic information Y save N...

Page 24: ...solve 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...

Page 25: ...rt and the link medium are operating correctly a Plug the link medium into another port that is operating correctly and determine whether the same problem occurs b If the problem still occurs verify t...

Page 26: ...ne whether the ports at both ends are always up and use the display interface command to determine whether the number of incoming packets is accumulating At the same time examine the outgoing packet s...

Page 27: ...k aggregation summary command to verify that the status of the port is Selected g If the status of the port is Unselected the port cannot send or receive data packets h Determine why the port becomes...

Page 28: ...ommand in user view to clear the packet statistics of the port This command resets the values of each statistical field to 0 so that you can view the statistics changes more easily b Determine whether...

Page 29: ...status of the port is Unselected the port cannot send or receive data packets h Determine why the port becomes Unselected for example the attribute configurations of the port are different from the re...

Page 30: ...he current transceiver module alarms display transceiver diagnosis interface Displays the present measured values of the digital diagnosis parameters for transceiver modules display transceiver interf...

Page 31: ...ute the display irf command to view member IDs No Yes No Yes No Yes End IRF setup failure No No Yes Yes Contact H3C Support No Yes Resolved No Yes Yes No Yes No Yes You cannot add devices to the fabri...

Page 32: ...ical port bound to the IRF port If the field displays DOWN Administratively execute the undo shutdown command to bring up the port If the field displays DOWN verify that the transceiver modules or cab...

Page 33: ...link down event execute the display interface command to check port statistics for CRC errors c If the port is an SFP port execute the display transceiver diagnosis command to verify that the transmit...

Page 34: ...agnostic information and provide it to H3C Support H3C display diagnostic information Save or display diagnostic information Y save N display Y N Y BFD MAD failure Symptom BFD MAD fails to detect an I...

Page 35: ...32 Troubleshooting flowchart Figure 11 Troubleshooting the BFD MAD failure Solution To resolve the problem...

Page 36: ...display interface command to verify that the interface does not have the following IP addresses IP address assigned by using the ip address command VRRP virtual IP address 4 Verify that the BFD MAD V...

Page 37: ...remove the issue 8 If the problem persists contact H3C Support Execute the display diagnostic information command save the diagnostic information and provide it to H3C Support H3C display diagnostic...

Page 38: ...s for MAD If the intermediate device does not support extended LACPDUs for MAD replace the intermediate device or use BFD MAD for split detection 2 Verify that each member device has a link in the lin...

Page 39: ...ction causes IRF split a Execute the display irf command to identify the domain ID of each IRF fabric b If the IRF fabrics use the same domain ID execute the irf domain command to change the domain ID...

Page 40: ...rap data in the trap buffer display version Displays system version information display vlan Displays VLAN information Troubleshooting QoS and ACL This section provides troubleshooting information for...

Page 41: ...blem persists contact H3C Support Execute the display diagnostic information command save the diagnostic information and provide it to H3C Support H3C display diagnostic information Save or display di...

Page 42: ...es to be applied is no more than the number of remaining resources Execute the display acl resource command to display the ACL resource usage In IRF mode if the ACL is applied globally for example to...

Page 43: ...ffic a If the number of ACL rules to be applied is greater than the number of remaining ACL resources delete unnecessary ACL rules b Apply the ACLs 2 If the problem persists contact H3C Support Execut...

Page 44: ...t the applied ACL rules overlap For example the output shows that rule 0 in ACL 3100 and rule 0 in ACL 3009 overlap They both can match traffic sourced from 2 2 2 1 ACL number 3100 rule 0 permit ip so...

Page 45: ...ormation and provide it to H3C Support H3C display diagnostic information Save or display diagnostic information Y save N display Y N Y Packet loss or forwarding failure Symptom The network experience...

Page 46: ...l adv 3000 geliACL quit H3C traffic classifier count H3C classifier count if match acl 3000 H3C classifier count quit H3C traffic behavior count H3C behavior count accounting H3C behavior count quit H...

Page 47: ...00 4 Compare the traffic statistics on the two interfaces Packet loss or forwarding fault exists between Device B and Device C Related commands This section lists the commands that you might use for t...

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