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Cisco AVVID Network Infrastructure Enterprise Quality of Service Design
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Chapter 4 QoS in an AVVID-Enabled Wide-Area Network
QoS Recommendations for WAN Aggregation Routers
illustrates a MQC policy applied to a slow-speed (512 kbps) Frame Relay link connecting
to a distributed-platform.
Example 4-10 Distributed-Platform Slow-Speed Frame Relay Link
ip cef distributed
!
...
!
policy-map dTS-512kbps
class class-default
shape average 504000 4032 0
This command sets the dTS shaper.
queue-limit 427
This command increases the queue limit.
service-policy WAN-EDGE
This command applies the LLQ/CBWFQ policies within the dTS
!
policy.
...
!
interface Serial1/0/1
bandwidth 1536
no ip address
encapsulation frame-relay
no fair-queue
!
interface Serial1/0/1.50 point-to-point
description FR Link to BRANCH#50
bandwidth 512
ip address 10.200.50.1 255.255.255.252
frame-relay interface-dlci 150
class dTS-TO-FRTS-512kbps
This command binds the FR map-class to the DLCI.
frame-relay ip rtp header-compression
This command enables cRTP.
!
...
!
map-class frame-relay dTS-TO-FRTS-512kbps
no frame-relay adaptive-shaping
service-policy output dTS-512kbps
This command applies the dTS policy to the FR map-class.
frame-relay fragment 640
This command enables FR.12.
High-Speed ATM Links
Class-based policies are only recommended on ATM hardware that supports per-VC traffic-shaping (for
example, ATM Enhanced Port Adaptors [PA-A3] for the Cisco 7200/7500 routers and OC3 Network
Modules for Cisco 3600 routers).
illustrates how MQC policies can be applied directly to
ATM PVCs.
Example 4-11 High-Speed ATM Links
ip cef
In distributed platforms, use ip cef distributed.
!
...
!
interface ATM4/0
description Parent ATM Link
bandwidth 3000
no ip address
no atm ilmi-keepalive
!