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Troubleshooting flowchart
Figure 22 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 "
."
Execute the
debug rxtx softcar show 1
command in en_diag view to check for
software-related packet loss.
[Sysname-probe]debug rxtx softcar show slot 2
ID Type RcvPps Rcv_All DisPkt_All Pps Dyn Swi Hash ACLmax
0 ROOT 0 0 0 300 S On SMAC 0
1 ISIS 0 0 0 200 D On SMAC 8
2 ESIS 0 0 0 100 S On SMAC 8
3 CLNP 0 0 0 100 S On SMAC 8
4 VRRP 0 0 0 1024 S On SMAC 8
5 UNKNOWN_IPV4MC 0 0 0 100 S On SMAC 8
6 UNKNOWN_IPV6MC 0 0 0 100 S On SMAC 8
7 IPV4_MC_RIP 0 0 0 150 D On SMAC 8
8 IPV4_BC_RIP 0 0 0 150 D On SMAC 8
9 MCAST_NTP 0 0 0 100 S On SMAC 8
10 BCAST_NTP 0 0 0 100 S On SMAC 8
11 IPV4_MC_OSPF_5 0 0 0 100 S On SMAC 8
12 IPV4_MC_OSPF_6 0 0 0 100 S On SMAC 8
13 IPV4_UC_OSPF 0 0 0 200 S On SMAC 8
14 IPV4_MC_PIM 0 0 0 100 S On SMAC 8
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