From: Ken Young (CiscoKid@ns.sympatico.ca)
Date: Sun Aug 12 2007 - 21:53:20 ART
Can anyone confirm my assumption about the following configuration?
- CIR = 64 kbps, miniCIR= 32 kbps.
- A nested LLQ policy which guarantees 32 kbps of low latency bandwidth for
voice (or 'ef' traffic).
*IF* a BECN is received on the PVC; this router will slow its shaping rate
to miniCIR of 32 kbps, because we have a llq configured for 32 kbps of
voice, during a period of congestion it is 'theatrically' possible that ONLY
voice traffic would be transmitted if the voice Q was pushing the full 32
kbps worth of voice traffic.
Am I interrupting that correctly?
class-map voice
match ip dscp ef
!
policy-map llq
class voice
priority 32
!
policy-map shape_policy_map
class class-default
shape average 64000
shape adaptive 32000
service-policy llq
!
map-class frame-relay shape_map_class
frame-relay fragment 80
service-policy output shape_policy_map
!
interface serial0/0
encapsulation frame-relay
!
interface serial0/0.601 point-to-point
ip address 192.168.1.1 255.255.255.0
frame-relay interface-dlci 601
class shape_map_class
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