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Service Ingress QoS Policy Commands
Service Ingress QoS Policy Commands
sap-ingress
Syntax
[no] sap-ingress policy-id [create]
Context
config>qos
Description
This command is used to create or edit the ingress policy. The ingress policy defines the Service Level
Agreement (SLA) enforcement service packets receive as they ingress a SAP. SLA enforcement is
accomplished through the definition of meters/queues (depends on the support available on a platform) that
have Forwarding Class (FC), Committed Information Rate (CIR), Peak Information Rate (PIR), Committed
Burst Size (CBS), and Maximum Burst Size (MBS) characteristics. The simplest policy defines a single
queue/meter that all ingress traffic flows through. Complex policies have multiple meters/queues combined
with classification entries that indicate which meter/queue a packet will flow though.
Policies in effect are templates that can be applied to multiple services as long as the scope of the policy is
template. Meters defined in the policy are not instantiated until a policy is applied to a service SAP.
Depending on the support available on different 7210 platforms, SAP ingress policies can be defined with
either Dot1p as the match criteria or IP DSCP as the match criteria or IP headers as the match criteria or
MAC headers or both as the match criteria. On 7210 SAS-D, E, and K user has an option to use Dot1p, IP
DSCP, IPv4/IPv6 criteria and MAC criteria.
Only one service ingress policy can be provisioned. The SAP ingress policy with policy-id 1 is a system-
defined policy applied to services when no other policy is explicitly specified. The system SAP ingress
policy can be modified but not deleted. The no sap-ingress command restores the factory default settings
when used on policy-id 1. The default SAP Ingress policy for different platforms are listed above "Default
SAP Ingress Policy on page 224.
Any changes made to the existing policy, using any of the sub-commands are applied immediately to all
services where this policy is applied. For this reason, when many changes are required on a policy, it is
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.
NOTES:
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On 7210 SAS-D, E, before associating a SAP ingress policy with a SAP, resources must
be allocated using the CLI command config> system> resource-profile>ingress-internal-
tcam> qos-sap-ingress-resource. Please read the Service Ingress Qos Policies Chapter
above and the 7210 Basic Systems Guide for more information about this CLI command
and resource allocation.
On 7210 SAS-D, E, SAP ingress policy with only a single criteria can be associated with
the SAP.
On 7210 SAS-K, SAP ingress policy with multiple criteria can be associated with the
SAP. The system defines a match-order to match against the classification rules specified
in the policy. Please see the QoS overview section to know more about the match order.
7210 SAS D, E, K OS Quality of Service Guide
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