3Com MSR 50, MSR 30 manual Wred ip-precedence, 1831

1831

This command can be used only after the wred command has been used to enable WRED drop mode based on DSCP.

The configuration of wred dscp will be deleted if the configuration of qos wred is deleted.

The configuration of drop parameter gets invalid if the configuration of the queue af command or the queue wfq command is cancelled.

Related commands: qos policy, traffic behavior, classifier behavior.

Examples # Set the queue lower-limit to 20, upper-limit to 40 and discard probability to 15 for the packet whose DSCP is 3.

<Sysname> system-view

[Sysname] traffic behavior database [Sysname-behavior-database] queue wfq

[Sysname-behavior-database] wred dscp

[Sysname-behavior-database] wred dscp 3 low-limit 20 high-limit 40 d iscard-probability 15

wred ip-precedence

Syntax wred ip-precedence precedence low-limit low-limithigh-limit high-limit[ discard-probability discard-prob]

undo wred ip-precedence precedence

View Traffic behavior view

Parameters precedence: IP precedence, in the range 0 to 7.

low-limitlow-limit: Specifies the lower threshold, in the range 1 to 1024 (in terms of the number of packets). The system default is 10.

high-limithigh-limit: Specifies the upper threshold, in the range 1 to 1024 (in terms of the number of packets). The system default is 30.

discard-probabilitydiscard-prob: Specifies the denominator for drop probability, in the range 1 to 255. The system default is 10.

Description Use the wred ip-precedencecommand to set precedence lower-limit,

upper-limit and drop probability denominator of WRED.

Use the undo wred ip-precedencecommand to delete the configuration.

The wred ip-precedencecommand can be used only after the wred command is used to enable IP precedence-based WRED drop mode.

The configuration of wred ip-precedencewill be deleted when wred configuration is deleted.