Adding composite operation to an IP rule
Procedure
To add or delete composite operations to or from an IP rule, use the [no]
composite-operation command followed by the name of the composite operation
you want to add or delete, in the context of the rule.
For an example, see
Composite operation example on page 577.
Composite operation example
The following commands create a new composite operation called “dscp5” and assign the new
composite operation to rule 3 in QoS list 402. If the packet matches a rule, the Branch Gateway
changes the value of the DSCP field in the packet to 5.
Gxxx-001# ip qos-list 402
Gxxx-001(QoS 402)# composite-operation 12
Gxxx-001(QoS 402/cot 12)# name dscp5
Done!
Gxxx-001(QoS 402/cot 12)# dscp 5
Done!
Gxxx-001(QoS 402/cot 12)# cos no-change
Done!
Gxxx-001(QoS 402/cot 12)# exit
Gxxx-001(QoS 402)# ip-rule 3
Gxxx-001(QoS 402/rule 3)# composite-operation dscp5
Done!
DSCP table
DSCP is a standards-defined method for determining packet priority through an interface,
either into or out of a router.
There are three ways you can use the DSCP field:
Classifier: Select a packet based on the contents of some portions of the packet header and
apply behavioral policies based on service characteristic defined by the DSCP value
Marker: Set the DSCP field based on the traffic profile, as determined by the defined rules
Metering: Check compliance to traffic profile using filtering functions
A DSCP value can be mapped to a Class of Service (CoS). Then, for a CoS, rules can be
applied to determine priority behavior for packets meeting the criteria for the entire CoS.
Policy lists
Administering Avaya G430 Branch Gateway October 2013 577
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