3com 3031 Instruccion De Instalación

C

HAPTER

 72: MPLS Q

O

S

■

Configure QoS policy on the ingress interface Ethernet1/1/0 on the PE1 and set 
EXP domain value according to the DSCP attribute of MPLS packets.

■

On the Router P, identify streams according to their EXP domain value and 
configure stream-specific CBQs: EXP1 streams with 10% bandwidth, EXP2 
streams with 20% bandwidth, EXP3 streams with 30% bandwidth and EXP4 
streams with 40% bandwidth; delay guarantee is available for EXP4 streams.

Figure 254   Networking for MPLS QoS configuration

1 Configure PE1

a Define four classes, match them respectively with the MPLS packets with DSCP 

being AF11, AF21, AF31 and EF in the same VPN.

[PE1]traffic classifier af11

[PE1-classifier-af11]if-match dscp af11

[PE1-classifier-af11]traffic classifier af21

[PE1-classifier-af21]if-match dscp af21

[PE1-classifier-af21]traffic classifier af31

[PE1-classifier-af31]if-match dscp af31

[PE1-classifier-af31]traffic classifier efclass

[PE1-classifier-efclass]if-match dscp ef

[PE1-classifier-efclass]quit

b Define four traffic behaviors and configure EXP domain value for their MPLS 

packets.

[PE1]traffic behavior exp1

[PE1-behavior-exp1]remark mpls-exp 1

[PE1-behavior-exp1]traffic behavior exp2

[PE1-behavior-exp2]remark mpls-exp 2

[PE1-behavior-exp2]traffic behavior exp3

[PE1-behavior-exp3]remark mpls-exp 3

[PE1-behavior-exp3]traffic behavior exp4

CE2

CE1

VPN 1

PE1

10.1.1.1

PE2

30.1.1.1

Ethernet1/1/0

168.1.1.1/24

Ethernet1/0/0

168.1.1.2/24

Ethernet2/1/0

168.2.1.1/24

Ethernet2/0/0

168.2.1.2/24

10.1.0.0/16

P

Serial1/0/0

172.1.1.2/24

Serial1/0/0

172.1.1.1/24

Serial2/0/0

172.2.1.2/24

Serial2/0/0

172.2.1.1/24

VPN 1

11.1.0.0/16

LoopBack0

202.100.1.1/32

AS65410

LoopBack0

202.100.1.2/32

AS100

AS65420