Alcatel-Lucent 7950 Quality Of Service Manual page 330

Extensible routing system
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Network IP Interface Forwarding Class-Based Redirection
5. The instantiated FP policer queue-group can be used by PW packets received on a
6. When a PW FC is redirected to use a policer in a named policer queue-group and the
7. When a PW FC is redirected to use a policer in a named policer queue-group and the
8. When a PW FC is redirected to use a policer in a named policer queue-group and the
9. If a network QoS policy is applied to the ingress context of a PW, any PW FC, which is
10. If no network QoS policy is applied to the ingress context of the PW, then all packets of
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network IP interface configured on both Ethernet ports and POS ports of that IOM3/
IMM.
queue-group name does not exist, the association is failed at the time the user associates
the ingress context of a spoke-SDP to the named queue-group. In such a case, the PW
packet feeds directly the ingress network shared queue for that FC defined in the
network-queue policy applied to the ingress of the MDA/FP.
queue-group name exists but the policer-id is not defined in the queue-group template,
the association is failed at the time the user associates the ingress context of a spoke-SDP
to the named queue-group. In such a case, the PW packet feeds directly the ingress
network shared queue for that FC defined in the network-queue policy applied to the
ingress of the MDA/FP.
queue-group name exists and the policer-id is defined in the queue-group template, it is
not required to check that an instance of that queue-group exists in all ingress FPs which
have network IP interfaces. The handling of this is dealt with in the data path as follows:
a. When a PW packet for that FC is received and an instance of the referenced
queue-group name exists on that FP, the packet is processed by the policer and is
then feed the per-FP ingress shared queues referred to as policer-output-queues.
b. When a PW packet for that FC is received and an instance of the referenced
queue-group name does not exist on that FP, the PW packets are fed directly into
the corresponding ingress network shared queue for that FC defined in the
network-queue policy applied to the ingress of the MDA/FP.
not explicitly redirected in the network QoS policy, has the corresponding packets feed
directly the ingress network shared queue for that FC defined in the network-queue
policy applied to the ingress of the MDA/FP.
a. This behavior is the same regardless if the ingress network IP interface from
which the PW packet is received is redirected or not to a policer queue-group.
the PW feed:
a. the ingress network shared queue for the packet FC defined in the network-queue
policy applied to the ingress of the MDA/FP. This is the default behavior.
b. a queue-group policer followed by the per-FP ingress shared queues referred to
as policer-output-queues if the ingress context of the network IP interface from
which the packet is received is redirected to a queue-group. The only exceptions
to this behavior are for packets received from a IES/VPRN spoke interface and
from a R-VPLS spoke-SDP, which is forwarded to the R-VPLS IP interface. In
7950 XRS Quality of Service Guide

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