Cisco ASR 9000 Series Service Configuration Guide

Configuring Modular QoS Service Packet Classification and Marking on Cisco ASR 9000 Series Routers
How to Configure Modular QoS Packet Classification and Marking on Cisco ASR 9000 Series Routers
QC-31
Cisco ASR 9000 Series Aggregation Services Router Modular Quality of Service Configuration Guide
OL-23108-02
Step 4
set precedence number
Example:
RP/0/RSP0/CPU0:router(config-pmap-c)# set
precedence 1
• Sets the precedence value in the IP header.
Step 5
set dscp dscp-value
Example:
RP/0/RSP0/CPU0:router(config-pmap-c)# set dscp
5
• Marks a packet by setting the DSCP in the ToS byte.
Step 6
set qos-group qos-group-value
Example:
RP/0/RSP0/CPU0:router(config-pmap-c)# set
qos-group 31
Sets the QoS group identifiers on IPv4 or MPLS packets.
The set qos-group command is supported only on an
ingress policy.
Step 7
set cos [inner] cos-value
Example:
RP/0/RSP0/CPU0:router(config-pmap-c)# set cos 7
Sets the specific IEEE 802.1Q Layer 2 CoS value of an
outgoing packet. Values are from 0 to7.
Sets the Layer 2 CoS value of an outgoing packet.
• This command should be used by a router if a user
wants to mark a packet that is being sent to a switch.
Switches can leverage Layer 2 header information,
including a CoS value marking.
• For Layer 2 interfaces, the set cos command:
– Is rejected on ingress or egress policies on a main
interface.
– Is accepted but ignored on ingress policies on a
subinterface.
– Is supported on egress policies on a subinterface.
• For Layer 3 interfaces, the set cos command:
– Is ignored on ingress policies on a main interface.
– Is rejected on ingress policies on a subinterface.
– Is supported on egress policies on main interfaces
and subinterfaces.
Step 8
set mpls experimental {imposition | topmost}
exp-value
Example:
RP/0/RSP0/CPU0:router(config-pmap-c)# set mpls
experimental imposition 3
Sets the experimental value of the MPLS packet top-most or
imposition labels.
• imposition can be used only in service policies that are
attached in the ingress policy.
Step 9
set discard-class discard-class-value
Example:
RP/0//CPU0:router(config-pmap-c)# set
discard-class 3
Sets the discard class on IP Version 4 (IPv4) or
Multiprotocol Label Switching (MPLS) packets.
• This command can be used only in service policies that
are attached in the ingress policy.
Command or Action Purpose

Cisco ASR 9000 Series Specifications

General

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