From: Darrin K. Pierce (darrin@dkpierce.com)
Date: Sat Feb 24 2007 - 18:07:10 ART
Are there any differences / advantages of using traditional FRTS over
MQC-Based FRTS?
Does the MQC-based FRTS support Link Fragmentation and Interleaving? The
Cisco DocCD "MQC-Based Frame Relay Traffic Shaping" section doesn't mention
LFI at all!
- I thought if Shaping was applied, that nullified interleaving (at least
that is what the doc CD states in "Frame Relay Queuing and Fragmentation
at the Interface"
A few examples from 12.4 "Configuring Frame Relay", "Frame Relay Queuing and
Fragmentation at the Interface" and "MQC-Based Frame Relay Traffic Shaping"
are included below.
Darrin
- Standard FRTS Fragmentation
Router(config)# map-class frame-relay DATA
Router(config-map-class)# frame-relay fragment 80 switched
Router(config-map-class)# frame-relay cir 64000
Router(config-map-class)# frame-relay bc 640
!
Router(config)# interface serial0/0
Router(config-if)# encapsulation frame-relay
Router(config-if)# frame-relay traffic-shaping
Router(config-if)# frame-relay interface-dlci 20
Router(config-fr-dlci)# class data
- With Link Fragmentation & Interleaving at the Interface
Router(config)# policy-map LLQ
Router(config-pmap)# class VOICE
Router(config-pmap-c)# priority 64
!
Router(config)# interface Serial0/0
Router(config-if)# encapsulation frame-relay
Router(config-if)# service-policy output LLQ
Router(config-if)# frame-relay fragment 80 end-to-end
- CBWFQ and Fragmentation with FRTS via MQC
Router(config)# policy-map LLQ
Router(config-pmap)# class VOICE
Router(config-pmap-c)# priority 32
!
Router(config)# policy-map SHAPE
Router(config-pmap)# class class-default
Router(config-pmap-c)# shape average 64000
Router(config-pmap-c)# shape adaptive 32000
Router(config-pmap-c)# service-policy LLQ
!
Router(config)# map-class frame-relay SHAPE-FR
Router(config-map-class)# frame-relay fragment 80
Router(config-map-class)# service-policy output SHAPE
!
Router(config)# interface Serial0/0
Router(config-if)# encapsulation frame-relay
Router(config)# interface Serial0/0.1 point-to-point
Router(config-subif)# frame-relay interface-dlci 100
Router(config-fr-dlci)# class SHAPE-FR
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