I need to get some low volume, interactive data, prioritized on frame relay PVCs across our network. I have followed the CBWFQ examples from cisco.com, but my test packets are still showing latency over 1 second. My lab set up has a corporate connected gateway router linked via FE to testrouter 50. TR51 has a T1 frame relay loop to another router acting as a frame relay switch. The other side of the FR switch has a 56k link to testrouter51. I am sourcing test pings from my desktop PC, that are marked as AF43, and leave at a rate of 1/second, when the response comes back in time. I am using a Smartbits to generate some default class traffic at a rate of about 56Kbps only in the 'outbound' direction, toward TR51, as this emulates a file copy from corporate to remote sites, that is causing the AF43 traffic to suffer. Here is the relevant config on the TR50 device:
class-map match-all rtu-data
match ip dscp af43
!
policy-map frame-56
class rtu-data
priority percent 20
class network-mgt-data
bandwidth percent 5
class class-default
random-detect dscp-based
fair-queue
!
interface Serial0/2/0
no ip address
encapsulation frame-relay
load-interval 30
no fair-queue
service-module t1 clock source internal
frame-relay traffic-shaping
!
interface Serial0/2/0.501 point-to-point
bandwidth 56
ip address 10.41.111.50 255.255.255.0
snmp trap link-status
frame-relay class frame-56
frame-relay interface-dlci 501
class frame-56
!
map-class frame-relay frame-56
frame-relay cir 56000
frame-relay bc 300
frame-relay be 0
frame-relay mincir 56000
service-policy output frame-56
!
Thanks in advance for any suggestions you have !
