Troubleshooting guide

3. Troubleshooting Functional Failures During Operation
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Figure 3-3 Analysis flowchart
Table 3-24 Failure analysis method for multicast forwarding
No. Items to check and
commands
Action
1 If multicast forwarding is not
performed, use the show
logging operation command
to check whether a failure has
occurred.
Check the following:
- Check whether log information about a physical fault has been
recorded.
2 Make sure filtering and QoS
control are configured
correctly.
Certain packets might have been discarded by filtering, or packets
might have been discarded by the shaper of QoS control. Make sure
that the setting conditions for filtering and QoS control in the
configuration are correct, and that the shaper is used appropriately in
the system configuration.
For details about the procedure, see
3.13.1 Checking the filtering and
QoS control configuration information.