Ingress Pw Shaping Using Spoke-Sdp Forwarding Class-Based Redirection - Alcatel-Lucent 7950 Quality Of Service Manual

Network IP Interface Forwarding Class-Based Redirection

Ingress PW Shaping Using Spoke-SDP Forwarding Class-Based Redirection

Feature Configuration
The user applies a network QoS policy to the ingress context of a spoke-SDP
mapping of a Forwarding Class (FC) to a policer defined in a queue-group template which is
instantiated on the ingress Forwarding Plane (FP) where the PW packets are received.
config>service>vprn>interface>spoke-sdp>ingress>qos network-policy-id fp-redirect-group
queue-group-name instance instance-id
Let us refer to a queue-group containing policers as a policer queue-group. The user must
instantiate this queue-group by applying the following command:
config>card>fp>ingress>network>queue-group queue-group-name instance instance-id
The policers are instantiated at ingress FP, one instance per destination tap, and are used to service
packets of this spoke-SDP which are received on any port on the FP to support a network IP
interface on LAG and on any network IP interface to support ECMP on the network IP interface
and LSP reroutes to a different network IP interface on the same FP.
In the ingress context of the network QoS policy, the user defines the mapping of a FC to a
policer-id and instructs the code to redirect the mapping to the policer of the same ID in some
queue-group:
config>qos>network>ingress>fc>fp-redirect-group policer policer-id
config>qos>network>ingress>fc>fp-redirect-group broadcast-policer policer-id
config>qos>network>ingress>fc>fp-redirect-group unknown-policer policer-id
config>qos>network>ingress>fc>fp-redirect-group mcast-policer policer-id
The user can redirect the unicast, broadcast, unknown, and multicast packets of a FC to different
policers to allow for different policing rates for these packet types (broadcast and unknown are
only applicable to VPLS services). However, the queue-group is explicitly named only at the time
the network QoS policy is applied to the spoke-SDP as shown above with the example of the
VPRN service.
When the FC of a PW is redirected to use a policer in the named queue-group, the policer feeds the
existing per-FP ingress shared queues referred to as policer-output-queues. These queues are
shared by both access and network policers configured on the same ingress FP. The shared queue
parameters are configurable using the following command:
1. This feature applies to both spoke-SDP and mesh-SDP. Spoke-SDP is used throughout for ease of
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7950 XRS Quality of Service Guide
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to redirect the