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Learn how to install, configure, and operate the Vyatta Network Operating System (Vyatta NOS) and Orchestrator, which help drive our virtual networking and physical platforms portfolio.

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QoS configuration examples

Configure the WRED algorithm on an individual queue when queue-limit is defined in bytes

An example of how to configure the WRED algorithm thresholds in bytes, and then configure a profile queue to randomly drop packets when the queue is active.
  1. Configure a DSCP group. This group may contain multiple DSCP.
    user@system# set resources group dscp-group group-1 dscp 0
  2. Determine which profile queue you will configure with the WRED algorithm. Then assign this profile queue to a traffic class.
    user@system# set policy qos name policy-2 shaper profile profile-2 queue 0 traffic-class 0
  3. Map the DSCP group that you defined earlier — group-1 — to queue 0.
    user@system# set policy qos name policy-2 shaper profile profile-2 map dscp-group group-1 to 0
  4. Configure the filter-weight attribute for the WRED algorithm for queue 0. This attribute is common to all DSCP groups on this queue.
    user@system# set policy qos name policy-2 shaper profile profile-2 queue 0 wred-map-bytes filter-weight 5
  5. Configure the mark-probability attribute of the WRED algorithm for DSCP group group-1.
    user@system# set policy qos name policy-2 shaper profile profile-2 queue 0 wred-map-bytes dscp-group group-1 mark-probability 32
  6. Configure the min-threshold attribute, in bytes, for DSCP group group-1.
    user@system# set policy qos name policy-2 shaper profile profile-2 queue 0 wred-map-bytes dscp-group group-1 min-threshold 10000
  7. Configure the max-threshold attribute, in bytes, of the WRED algorithm for DSCP group group-1.
    user@system# set policy qos name policy-2 shaper profile profile-2 queue 0 wred-map-bytes dscp-group group-1 max-threshold 50000
You have configured the WRED algorithm in bytes on queue 0 of profile profile-2 of policy policy-2.
vRouter
VNF
UfiSpace S9700-53DX
UfiSpace S9500-30XS
Physical uCPEs
Distributed Services Platform

Last updated: May 19, 2022

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