Riverstone Networks WICT1-12 - Manual (Page 577)

Riverstone Networks RS Switch Router User Guide Release 8.0 26-15
QoS Configuration Limiting Traffic Rate
To define a per-flow rate limit policy and apply the policy to an interface, enter the following commands in Configure
mode:
26.10.3 Software-Based Flow-Aggregate Rate Limiting
Use a flow-aggregate rate limiting policy if an aggregation of flows needs to be limited to a particular rate. For
example, you can use aggregate rate limiting to rate limit traffic to or from a particular subnet. You do not need to
enable aggregate rate limiting mode on the line card (see
Section 26.10.1, "Rate Limiting Modes" ) to use
flow-aggregate rate limiting.
Note You cannot use non-IP ACLs for flow-aggregate rate limit policies.
To define a flow-aggregate rate limit policy use the following commands in the Configure mode:
26.10.4 Port Rate Limiting
Use a port rate limiting policy if incoming or outgoing traffic on a particular port needs to be rate limited. Unlike other
types of rate limiting policies, you do not specify an ACL when defining this type of policy. Port rate limiting policies
do not need to be applied to an interface and take effect when they are created.
To configure port rate limiting policies for input ports, you must first enable the aggregate rate limiting mode on the
line card (see
Section 26.10.1, "Rate Limiting Modes" ). You do not need to enable the aggregate rate limiting mode to
configure a policy to limit outgoing traffic on a port. You can configure port-level rate limiting policies on output ports
in either per-flow or aggregate rate limiting mode.
Define a per-flow rate limit policy.
rate-limit
<name>
input acl
<acl list>
rate
<rate-limit>
exceed-action drop-packets | set-priority-low |
set-priority-medium | set-priority-high
[
sequence
<number>]
Apply a per-flow rate limit profile to
an interface.
rate-limit
<name>
apply interface
<interface>
| all
Define a software-based
flow-aggregate rate limit policy.
rate-limit
<name>
flow-aggregate acl
<acl list>
rate
<rate-limit>
exceed-action drop-packets | set-priority-low |
set-priority-medium | set-priority-high sequence
<number>
min-bandwidth
<bandwidth>
distribute-among
<flows>
Apply a flow-aggregate rate limit
policy to an interface.
rate-limit
<name>
apply interface
<interface>
| all