Network QoS Policy Commands
Page 156 7210 SAS D, E, K OS Quality of Service Guide
Network QoS Policy Commands
network
Syntax [no] network network-policy-id [create]
[no] network network-policy-id
Context config>qos
Description
This command creates or edits a QoS network policy. The network policy defines the treatment
packets receive as they ingress and egress the access uplink port and network IP interface in
network mode of operation.
The QoS network policy consists of an ingress and egress component. The ingress component of
the policy defines how Dot1p bits are mapped to internal forwarding class and profile state. The
forwarding class and profile state define the Per Hop Behavior (PHB) or the QoS treatment
through the 7210 SAS. The mapping on each network interface defaults to the mappings defined in
the default network QoS policy until an explicit policy is defined for the network interface. It also
defines the rate-limiting parameters for the traffic mapped to each forwarding classes. On 7210
SAS-D and 7210 SAS-E, Traffic mapped to each forwarding class can be rate limited using
separate meters for each uni-cast and multipoint traffic. On 7210 SAS-K, traffic mapped to each
forwarding class can be rate limited using same or separate queue for unicast and multipoint
traffic.
The egress component of the network qos policy defines the forwarding class and profile to packet
header priority bits (for example: Dot1p bits).
The network policy-id 1 cannot be modified or deleted. It defines the default Dot1p-to-FC
mapping and default meters for unicast traffic and optional multipoint meters for BUM traffic on
the, ingress. For the egress, it defines eight forwarding classes which represent individual queues
and the packet marking behavior.
If a new network policy is created (for instance, policy-id 2), only the default action, default
meters for unicast and multipoint traffic and egress forwarding class parameters are identical to the
default policy. A new network policy does not contain the default Dot1p-to-FC mapping for
network QoS policy. The default network policy can be copied (use the copy command) to create a
new network policy that includes the default ingress Dot1p to FC mapping (as appropriate). You
can modify parameters or use the no modifier to remove an object from the configuration.
Any changes made to an existing policy, using any of the sub-commands, will be applied
immediately to all access uplink ports where this policy is applied. For this reason, when many
changes are required on a policy, it is highly recommended that the policy be copied to a work area
policy-id. That work-in-progress policy can be modified until complete and then written over the
original policy-id. Use the config qos copy command to maintain policies in this manner.
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