Frame Relay Qos; Frame Relay Dlci Classification; Frame Relay De Classification; Frame Relay De Marking - Cisco ASR 9000 Series Service Configuration Manual
Aggregation services router modular quality
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Also See for ASR 9000 Series:
- Command reference manual (1138 pages) ,
- Routing configuration manual (702 pages) ,
- Reference manual (696 pages)
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Frame Relay QoS
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A QoS policy can be applied only to a PVC under a Frame Relay subinterface; it cannot be applied
Note
directly to a Frame Relay subinterface.
Frame Relay DLCI Classification
This configuration allows users to match on the Frame Relay DLCI value of packets encapsulated in
Frame Relay. Packets that are not Frame Relay encapsulated do not match this configuration.
class-map foo
The list of DLCI values can contain ranges as well as individual values, as in this example:
class-map foo
DLCI matching is supported only on main interfaces.
Note
Frame Relay DE Classification
This configuration allows the user to match Frame Relay packets that have the discard eligible (DE) bit
set in the Frame Relay header:
class-map fr_class
match fr-de 1
To match Frame Relay DE bit 0, use this configuration:
class-map match-not-fr-de
match not fr-de 1
DE bit classification is not supported on Layer 3 interfaces.
Note
Frame Relay DE Marking
In this example, the fr-de bit is set when traffic exceeds the policing committed information rate, so the
downward system (when experiencing congestion) discards traffic with the fr-de bit set to 1.
policy-map fr_de_marking
class class-default
police rate percent 50
conform-action transmit
exceed-action set fr-de 1
!
!
end-policy-map
DE bit marking is not supported on Layer 3 interfaces.
Note
Cisco ASR 9000 Series Aggregation Services Router Modular Quality of Service Configuration Guide
QC-164
Frame Relay DE marking
match frame-relay list of dlci-values
match frame-relay dlci 1-100 150 200-300
Modular QoS Deployment Scenarios on Cisco ASR 9000 Series Routers
OL-23108-02
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