1 rate limiting modes, 2 per-flow rate limiting, Rate limiting modes -14 – Riverstone Networks WICT1-12 User Manual

Page 576: Per-flow rate limiting -14

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26-14 Riverstone Networks RS Switch Router User Guide Release 8.0

Limiting Traffic Rate

QoS Configuration

Note

You can configure a maximum of 24 port and aggregate rate limiting policies per
RS line card.

26.10.1

Rate Limiting Modes

Per-flow and flow-aggregate rate limiting is enabled on the RS by default. If you need to create aggregate or input
port-level rate limiting policies, you must enable the aggregate rate limiting mode on each affected line card. If you
enable aggregate rate limiting mode on a line card, you will not be able to apply new per-flow or flow-aggregate rate
limiting policies to interfaces on that line card.

The rate limiting mode can be changed only if there are no existing rate limiting policies. For example, before you can
enable aggregate rate limiting on a line card, you need to delete any existing per-flow or flow-aggregate rate limiting
policies on that line card.

To enable aggregate or port-level rate limiting on a line card, enter the following command in Configure mode:

Note

To change the rate limiting on the line card back to per-flow or flow-aggregate,
negate the above command.

26.10.2

Per-Flow Rate Limiting

Use a per-flow rate limiting policy if an individual traffic flow needs to be limited to a particular rate. A single per-flow
rate limiting policy can have multiple ACLs to define different traffic profiles and traffic rate limitations. When there
are multiple traffic profiles, a sequence number is used to identify the order in which the profiles are applied.

Note

Per-flow rate limiting is enabled on the RS by default. If you enable aggregate rate
limiting on a particular line card, you cannot apply per-flow rate limiting policies
for ports on that line card.

Note

You cannot use non-IP ACLs for per-flow rate limit policies.

Enable aggregate rate limiting mode
on an RS line card.

system enable aggregate-rate-limiting slot

QXPEHU!

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