OS10 Enterprise Edition User Guide Release 10.4.0E(R3)


Shaping traffic

You can configure to shape the rate of egress traffic. When you enable rate shaping, the system buffers all traffic exceeding the specified rate till buffer memory is exhausted. The rate shaping mechanism uses all buffers reserved for an interface or queue and then shared buffer memory, till it reaches the configured threshold.

Configure traffic shaping

  1. Enter the policy-map type as queuing and configure a policy-map name in CONFIGURATION mode.
    policy-map type queuing 
  2. Enter a class name to apply to the shape rate in POLICY-MAP-QUEUEING mode—up to 32 characters.
  3. (Optional) If you need rate shaping on a specific queue, match the corresponding qos-group in the class-map. If you do not configure the match qos-group command, rate shaping applies to all queues.
    match qos-group 
  4. Enter a minimum and maximum shape rate value in POLICY-MAP-QUEUEING-CLASS mode.
    shape {min {kbps | mbps | pps}
                                        min-value} {max {kbps | mbps | pps}
    • 0 to 40000000—kilobits per second kilobits per second—kbps
    • 0 to 40000 — megabits per second—mbps
    • 1 to 268000000 — in packets per second (pps)

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