Queue Sharing and Redirection
394 Quality of Service Guide
Figure 19: Ingress QoS Control on VPRN Bindings
An ingress queue group must be configured and applied to the ingress network FP where the
traffic is received for the VPRN. All traffic received on that FP for any binding in the VPRN
(either automatically or statically configured) which is redirected to a policer in the FP queue
group (using fp-redirect-group in the network QoS policy) will be controlled by that policer.
As a result, the traffic from all such bindings is treated as a single entity (per forwarding class)
with regard to ingress QoS control. Any fp-redirect-group multicast-policer, broadcast-
policer or unknown-policer commands in the network QoS policy are ignored for this traffic
(IP multicast traffic would use the ingress network queues or queue group related to the
network interface).
Ingress classification is based on the configuration of the ingress section of the specified
network QoS policy, noting that the dot1p and exp classification is based on the outer
Ethernet header and MPLS label whereas the DSCP applies to the outer IP header if the tunnel
encapsulation is GRE, or the DSCP in the first IP header in the payload if ler-use-dscp is
enabled in the ingress section of the referenced network QoS policy.
Ingress bandwidth control does not take into account the outer Ethernet header, the MPLS
labels/control word or GRE headers, or the FCS of the incoming frame.
The following command configures the association of the network QoS policy and the FP
queue group and instance within the network ingress of a VPRN:
configure
vprn
network
ingress
qos <network-policy-id> fp-redirect-group <queue-group-name>
instance <instance-id>
When this command is configured, it overrides the QoS applied to the related network
interfaces for unicast traffic arriving on bindings in that VPRN. The IP and IPv6 criteria
statements are not supported in the applied network QoS policy
al_0647
MPLS/IP
auto-bind or spoke-sdp bindings
Ingress QoS Control
VPRN
VPRN
VPRN
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