Frame-Relay Traffic Shaping --- Help

[rafaelgarcia]

Hi,

I have a 1760 router dropping packets on its serial interface. By TAC I need to configure QoS on the frame-relay circuit even though my CIR and access rate is 1.5M. They stated that I need to do so since I have voice running on my T1. I have never reached 1.5M on my T1.

I would like to here your feedback about this.

Also I would like to know how to configure the access list related to the class-map. Can somebody provide me with some sample configurations?

I appreciate your help.

[globalnettech]

Hello Rafael,

you might want to try Frame Relay Traffic Shaping first. Your configuration for this would look as following:

interface Serial0

encapsulation frame-relay

frame-relay traffic-shaping

frame-relay class SHAPE

!

map-class frame-relay SHAPE

frame-relay cir 1536000

frame-relay bc 153600

If this does not render the desired result, try the following QoS policy for voice traffic:

interface Serial0

service-policy output VOIP

!

class-map voice

match access-group 101

!

policy-map VOIP

class voice

priority percent 50

!

access-list 101 permit tcp any any eq 1720

access-list 101 permit udp any range 16384 32767

Can you try this and see if it makes a difference for you ?

Regards,

GNT