R2511-HP MSR Router Series ACL and QoS Command Reference(V5)

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normal-limit: Normal queue length in the number of packets, in the range of 1 to 1024. This argument is
60 by default.
bottom-limit: Bottom queue length in the number of packets, in the range of 1 to 1024. This argument is
80 by default.
Usage guidelines
With FR traffic policing enabled on an interface, only FIFO queuing or PVC PQ is available.
PVC PQ is a new queuing mechanism for FR classes. Similar to PQ, PVC PQ includes four queue types:
top, middle, normal, bottom, in the descending priority order. The queue to which a DLCI is assigned is
configured in an FR class. When congestion occurs on an interface, packets from different DLCIs are
assigned to different PVC PQ queues. When packets in the four queues are scheduled, packets are
scheduled in the descending order of queue priority.
Examples
# Apply PVC PQ to Serial 2/0.
<Sysname> system-view
[Sysname] interface serial 2/0
[Sysname-Serial2/0] fr pvc-pq
Related commands
pvc-pq
fr traffic-policing
Use fr traffic-policing to enable FR traffic policing.
Use undo fr traffic-policing to disable FR traffic policing.
Syntax
fr traffic-policing
undo fr traffic-policing
Views
FR interface view, MFR interface view
Default command level
2: System level
Usage guidelines
FR traffic policing is applicable only to the ingress interfaces on the DCE side of an FR network.
Before enabling traffic policing for the incoming interfaces, make sure that FR switching is enabled on the
DCE by using the fr switching command. For more information about the fr switching command, see
Layer 2—WAN Command Reference.
Examples
# Enable traffic policing on Serial 2/0.
<Sysname> system-view
[Sysname] interface serial 2/0
[Sysname-Serial2/0] fr traffic-policing