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fly
New Member

link bandwidth and WRED on GSR

hi ALL,

      random-detect command as below

random-detect precedence 3 1498 packets 9690 packets 1.

    i have a router ,customer request as below:

    important business data :   ip precedence 4  bandwidth 30%

    Wred request:if traffic reach to 80% bandwidth of link c , drop  traffic until 100% drop all

    internet traffic:                    ip precedence 1  bandwisth  20%

    Wred request:if taffic reach to 30% bandwidth of link, drop traffic until 100% drop all

   

     how can i config wred on gsr to complete customer request, link bandwidth is 2.5G

     how can i determine queue size of wred!

    thank you!

Tom

1 REPLY
Super Bronze

link bandwidth and WRED on GSR

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Posting

Unfamilar with GSR, but if its WRED works like other Cisco device WRED, WRED doesn't engage until you hit 100% link bandwidth, i.e. packets need to enqueue.  When it does, it would be extremely difficult to configure WRED drops on current percentage utilization.

To drop all traffic of certain types at certain bandwidth utilization could be accomplished with a policer, but these seems rather severe unless the link is congested.

If traffic was flowing on on one port and egress on another, you might "clock" the different traffic type usages with a policer and then use a single WRED to drop over rate traffic when egress is congested.

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