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Cisco AVVID Network Infrastructure Enterprise Quality of Service Design
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Chapter 6 QoS with MPLS in an AVVID-Enabled Network
Implementing MPLS VPN QoS
address-family vpnv4
neighbor 172.16.255.2 activate
neighbor 172.16.255.2 send-community both
no auto-summary
exit-address-family
!
route-map RESTRICT-SOO permit 120
match ip address acl-any
set local-preference 120
set extcommunity soo 10:400
!
ip classless
P Routers
The MPLS P-to-PE links were discussed in the
section. For P-to-P links, again a
differentiation must be made for frame versus cell modes of operation.
·
For frame mode, all of the modular QoS CLI functions are available to police and queue traffic based
on the EXP bits.
·
For cell mode, the label virtual circuits have been created at the edge and all label virtual circuits
are mapped through the MPLS backbone prior to the actual flow of data.
shows the configuration of a P router. The commands to implement QoS are highlighted in
bold.
Example 6-3
P Router Configuration
ip subnet-zero
no ip domain-lookup
mpls traffic-eng auto-bw timers
!
!
interface Loopback0
ip address 172.16.255.2 255.255.255.255
no ip directed-broadcast
!
interface POS0/0
ip address 172.16.0.2 255.255.255.252
no ip directed-broadcast
encapsulation ppp
tag-switching ip
crc 16
clock source internal
!
interface POS0/1
ip address 172.16.192.1 255.255.255.252
ip router isis
no ip directed-broadcast
encapsulation ppp
tag-switching ip
crc 16
tx-cos P-EDGE-OUT
!