Related Commands; Protocol Flapping; Symptom; Troubleshooting Flowchart - H3C S5560-EI Series Troubleshooting Manual

4. If the problem persists, contact H3C 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 22 Troubleshooting protocol flapping
Layer 3 protocol flapping
Layer 2 packet loss occurs?
Layer 3 packet loss occurs?
Software-related
packet loss occurs?
Contact the support
Yes
No
Yes
No
Yes
No
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
Troubleshoot the
problem
Troubleshoot the
problem
Collect diagnostic
information
51
Yes
Resolved?
No
Yes
Resolved?
No
End