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Troubleshooting flowchart
Figure 20 Troubleshooting protocol flapping
Solution
To resolve the issue:
1.
Verify that Layer 2 is operating correctly, as described in "
."
2.
Verify that Layer 3 is operating correctly, as described in "
."
3.
Check for software-related packet loss.
[Sysname-probe] debug rxtx softcar show slot 1
ID Type RcvPps PpsMax Rcv_All DisPkt_All Pps Dyn Swi Hash AC
Lmax
0 ROOT 0 0 0 0 3000 S On SMAC 0
1 ISIS 0 0 0 0 2000 D On SMAC 8
2 ESIS 0 0 0 0 600 S On SMAC 8
3 CLNP 0 0 0 0 1000 S On SMAC 8
4 VRRP 0 0 0 0 2000 S On SMAC 8
5 UNKNOWN_IPV4MC 0 0 0 0 600 S On SMAC 8
6 UNKNOWN_IPV6MC 0 0 0 0 600 S On SMAC 8
7 IPV4_MC_RIP 0 0 0 0 1000 D On SMAC 8
8 IPV4_BC_RIP 0 0 0 0 1000 D On SMAC 8
...
The
DisPkt_All
column shows the number of lost packets, the
Rcv_All
column shows the
number of received packets, and the
RcvPps
column shows the packet receiving rate. If packet
loss occurs, contact related information and go to step
4.
If the issue persists, contact Hewlett Packard Enterprise Support.
Layer 2 packet loss occurs?
Layer 3 packet loss occurs?
Troubleshoot the
problem
Resolved?
Troubleshoot the
problem
Contact the support
Layer 3 protocol flapping
Yes
No
No
Yes
Resolved?
Yes
Yes
No
No
End
Software-related
packet loss occurs?
No
Yes
Collect diagnostic
information
