NEC IP8800/S2400 Manuale Utente

3.   

Troubleshooting Functional Failures in Operation

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1. Log in to the system.
2. Check the "discard packets" statistical information of the output interface using the show qos queueing 

command.

3. If the statistical information identified in step 2 is incremented, packets are discarded through discarding control 

and shaper of QoS control.

4. Review to see if discard control and shaper have been set up appropriately for the system operation.

1. Log in to the system.
2. Specify port list in the show shaper command and check the "discard_pkt" statistical information on user queue 

of the input and output interfaces used for communication.

3. Specify interfaces in the show qos queuing command and check the "discard_pkt" statistical information on the 

port transmission/reception queue of the input and output interfaces used for communication.

4. Specify interfaces in the show qos queuing command and check the "discard_pkt" statistical information on the 

distribution transmission/reception queue of the input and output interfaces used for communication.

5. If the statistical information identified in step 2 to 4 is incremented, packets are discarded through discarding 

control of QoS control.

6. Review to see if discard control and shaper have been set up appropriately for the system operation.