Name: Cisco ASR 9000 Series
Brand: Cisco
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Modular QoS Deployment Scenarios on Cisco ASR 9000 Series Routers

MPLS QoS

QC-179

Cisco ASR 9000 Series Aggregation Services Router Modular Quality of Service Configuration Guide

OL-23108-02

interface GigabitEthernet0/0/0/1

service-policy output policy3

Pipe Mode: Egress PE Example

This example shows the configuration of the egress PE for the MPLS DiffServ pipe mode. The egress

LSR does not copy the EXP bits to the precedence bits of the outgoing IP packet. The scheduling of the

packets on the egress interface is done indirectly on the EXP bits using the set qos-group and match

qos-group commands.

!Ingress interface:

class-map exp2

match mpls experimental topmost 2

class-map exp4

match mpls experimental topmost 4

policy-map policy2

class exp2

set qos-group 2

class exp4

set qos-group 4

interface GigabitEthernet0/0/0/2

service-policy input policy2

!Egress interface:

class-map qos2

match qos-group 2

class-map qos4

match qos-group 4

policy-map policy3

class qos2

bandwidth percent 20

random-detect default

class qos4

bandwidth percent 20

random-detect default

interface GigabitEthernet0/0/0/1

service-policy output policy3

Short Pipe Mode: Egress PE Example

This example shows the configuration of the egress PE for the MPLS DiffServ short pipe mode. The

egress LSR forwards the packet based on the precedence or differentiated services code point (DSCP)

bits of the IP packet after removing the labels. The egress LSR does not copy the EXP bits to the

precedence bits of the outgoing IP packet.

! Configuration is not needed for ingress interface

!Egress interface:

class-map prec4

match precedence 4

policy-map policy3

class prec4

bandwidth percent 40

Series	ASR 9000
Category	Network Router
Modular Design	Yes
Redundancy	Yes (Hardware and Software)
Operating System	Cisco IOS XR
Interfaces/Ports	10G, 40G, 100G, 400G Ethernet
Expansion Slots	Varies by model
Routing Protocol	BGP, OSPF, IS-IS, EIGRP
Management	CLI, SNMP, NETCONF
Power Supply	Redundant
Port Density	Varies by model
Power Supply Options	AC, DC
Memory	Varies by model
Storage	Varies by model
Dimensions	Varies by model
Weight	Varies by model

Cisco ASR 9000 Series Service Configuration Guide

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Cisco ASR 9000 Series Specifications

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