Related Commands; Protocol Flapping; Symptom; Troubleshooting Flowchart - HP 5920 series Troubleshooting Manual

If the output interfaces are not the same, execute the reset command to clear the route entries.
Then the switch can learn route entries again.
4. If the problem persists, contact HP Support.

Related commands

This section lists the commands that you might use for troubleshooting Layer 3 forwarding failure.
Command
debugging arp packet
display arp
display ip routing-table
display mac-address
display fib

Protocol flapping

Symptom

The switch cannot send or receive protocol packets.

Troubleshooting flowchart

Figure 16 Troubleshooting protocol flapping
Description
Enables ARP packet debugging.
Displays ARP entries.
Displays brief information about active routes in the routing
table.
Display MAC address entries
Display FIB entries
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