Troubleshooting Guide © Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services.
Contents Introduction ··································································································································································· 1 Troubleshooting ACL ···················································································································································· 1 ACL application failure with an error message ············································································································· 1 Symptom ···································································································································································· 1 Solution ······································································································································································ 1 ACL application failure without an error message ········································································································ 1 Symptom ···································································································································································· 1 ...
Troubleshooting flowchart ···································································································································· 24 Solution ··································································································································································· 24 Related commands ················································································································································ 26 ...
Introduction This document provides troubleshooting information for HP 5500 EI and 5500 SI switches. This document is not specific to any software versions. 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 classifiers in a QoS policy to the hardware.
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: Verify that the QoS policy is configured correctly: Use one of the following commands to check the QoS policy for configuration errors, depending on the policy application destination:...
Verify that the ACL is configured correctly: Execute the display acl command. If the ACL is configured incorrectly, reconfigure it. If the problem persists, contact HP Support. ACL used in a packet filter To resolve the problem when the ACL is used in a packet filter: Verify that the packet filter is configured correctly: Execute the display packet-filter command.
Modify IRF port bindings or Resolved? or physical IRF connections reconnect physical ports correct? Bring up the IRF links/activate IRF links up? Resolved? IRF port configuration Upgrade software to the same Same software version? Resolved? version in the fabric Contact HP Support...
Solution To resolve the problem: Verify that the number of member devices does not exceed the upper limit (nine for a 5500-EI IRF fabric and four for a 5500-SI IRF fabric). If you are adding a new member device to an existing IRF fabric, use the display irf command to identify the number of member devices already in the IRF fabric.
However, the synchronization might fail when the gap between the software versions is too large. For more information, see the release notes. If the problem persists, contact HP Support. Related commands This section lists the commands that you might use for troubleshooting IRF.
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.
More than 8 member ports? Set no more than 8 member ports Resolved? Contact HP Support Solution To resolve the problem: Verify that all physical connections are correct. You can verify the physical connections against your network plan.
This ensures that all member ports you assign to the aggregation group can become Selected. If the problem persists, contact HP Support. Related commands This section lists the commands that you might use for troubleshooting Ethernet link aggregation.
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 resolve the problem: Verify that the physical connection of the port is correct:...
Unplug and then plug in the network cable of the port. Verify that the port is up. Verify that the port is not shut down: Execute the display interface brief command. Determine whether ADM appears in the second column of the output for the port. If ADM appears, use the undo shutdown command to bring up the port.
If the problem persists, contact HP 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. Displays key parameters of the transceiver module installed in an display transceiver interface interface.
Troubleshooting other problems High CPU usage Symptom The display cpu-usage command shows that the CPU usage is high. Troubleshooting flowchart Figure 5 Troubleshooting high CPU usage Solution To resolve the problem: Locate the tasks that are using CPU resources. Use the display cpu-usage task [ slot slot-id ] command in hidden view to display CPU usage information.
Examine whether the network topology is stable. If the network topology is not stable, the device has to use a lot of CPU resources to update its MAC address entries frequently. If the problem persists, contact HP Support. Related commands This section lists the commands that you might use for troubleshooting high CPU usage.
To resolve the problem: Verify that no error packets have been received on the local port: Execute the display interface command and check for error packets. <HP>display interface GigabitEthernet1/0/36 GigabitEthernet1/0/36 current state: UP IP Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: 000f-e200-002b ……...
If they are inconsistent, modify the configurations of the local port. If the problem persists, contact HP Support. Verify that packets are not mistakenly filtered out by ACLs: Examine the ACL and QoS policy configuration for packet filtering on the port, on the VLAN of the port, or globally.
Execute the display stp brief command to determine whether STP sets the state of the port to discarding. When the port is in discarding state, it cannot forward traffic. HP recommends disabling STP on the port, or configuring the port as an edge port if the port is connected to a terminal device.
If the problem persists, contact HP Support. Related commands This section lists the commands that you might use for troubleshooting Layer 2 packet loss failure.
Verify that the route entries are correct by using the display ip routing-table command: If incorrect route entries exist, troubleshoot the protocol that learns the route entries. If route entries are correct but the problem persists, contact HP Support. Related commands...
Power supplied correctly by Resolved? interfaces correctly PoE interfaces? Contact HP Support Solution To resolve the problem: Execute the following commands to display power supply information: Execute the display poe device command in any view to display PSE information. Check the faulty field to identify PSE problems.
The output shows that the PSE has problems. Execute the poe update command to upgrade the PSE processing software in service. <Sysname> system-view [Sysname] poe update full ver_3_9_0_release.bin pse 4 This command will fully update firmware on the specific PSE(s), Continue? [Y/N]:y System is downloading firmware into the hardware.
PoE interface, execute the poe max-power command to configure the maximum power with higher-wattage supply. If the problem persists, contact HP Support. Related commands This section lists the commands that you might use for troubleshooting PoE.