Configuring Modular QoS Congestion Management on Cisco ASR 9000 Series Routers
How to Configure QoS Congestion Management on Cisco ASR 9000 Series Routers
QC-58
Cisco ASR 9000 Series Aggregation Services Router Modular Quality of Service Configuration Guide
OL-23108-02
SUMMARY STEPS
1. configure
2. policy-map policy-name
3. class class-name
4. police rate {value [units] | percent percentage} [burst burst-size [burst-units]] [peak-burst
peak-burst [burst-units]] [peak-rate value [units]]
5. exceed-action action
6. exit
7. priority [level priority-level]
8. exit
9. exit
10. interface type interface-path-id
11. service-policy {input | output} policy-map
12. end
or
commit
13. show policy-map interface type interface-path-id [input | output]
DETAILED STEPS
Command or Action Purpose
Step 1
configure
Example:
RP/0/RSP0/CPU0:router# configure
Enters global configuration mode.
Step 2
policy-map
policy-name
Example:
RP/0/RSP0/CPU0:router(config)# policy-map voice
Enters policy map configuration mode.
• Creates or modifies a policy map that can be attached to
one or more interfaces to specify a service policy.
Step 3
class
class-name
Example:
RP/0/RSP0/CPU0:router(config-pmap)# class voice
Enters policy map class configuration mode.
• Specifies the name of the class whose policy you want
to create or change.
Step 4
police rate {
value
[
units
] | percent
percentage
} [burst
burst-size
[
burst-units
]]
[peak-burst
peak-burst
[
burst-units
]]
[peak-rate
value
[
units
]]
Example:
RP/0/RSP0/CPU0:router(config-pmap-c)# police
rate 250
Configures traffic policing and enters policy map police
configuration mode.
• In this example, the low-latency queue is restricted to
250 kbps to protect low-priority traffic from starvation
and to release bandwidth.
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