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User Manual - Configuration Guide (Volume 3)
Versatile Routing Platform
Chapter 3
Congestion Management
3-18
Quidway(config-if-Tunnel1)# tunnel destination 192.168.1.2
3.4 Troubleshooting of Congestion Management
The common fault of congestion management configuration is that the expected goal of
the user can not be fulfilled when the configuration is completed. The fault is usually
caused by the incorrect policy of flow classification configured by the user. To solve the
problem, enable the information debugging and locate the fault according to the
debugging information displayed on the screen.
z Display PQ debugging information
Quidway#debug priority-queue
Quidway(config)#logging on
Quidway(config)#log console debug
When packets are sent by the interface configured with PQ policy, all information about
queue selection will be shown on the screen.
z Display CQ debugging information
Quidway# debug custom-queue
Quidway(config)# logging on
Quidway(config)#log console debug
When packets are sent by the interface configured with CQ policy, all information about
queue selection will be shown on the screen.
z Display WFQ debugging information
Quidway# debug fair-queue
Quidway(config)# logging on
Quidway(config)# logging console debug
When packets are sent by the interface configured with WFQ policy, all information
about queue selection will be shown on the screen.