Configuring FR congestion management for an FR PVC
The device determines whether congestion has occurred based on the percentage of the current FR PVC queue length to the total interface queue length. If the percentage exceeds the set congestion threshold, the device considers that congestion has occurred and takes action on packets (for example, drops packets), to alleviate the condition.
When you configure FR congestion management for an FR PVC, follow these guidelines:
With FR congestion management enabled, an FR interface performs only FIFO queuing or PVC PQ.
With FR congestion management enabled, an FR PVC performs only FIFO queuing.
To use congestion management on an FR PVC, make sure that FRTS has been enabled on the main interface of the FR PVC.
To configure FR congestion management for an FR PVC:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter FR class view. | fr class class-name | N/A |
3. Enable FR congestion management for FR PVCs. | congestion-threshold { de | ecn } queue-percentage | By default, FR congestion management is disabled for FR PVCs. |