I am trying to prioritize voice traffic between 3 sites and everything I try only seems to make things worse for both data and voice, can somebody point me in the right diretion?
Each site has a Full T1 with a 768 CIR.
The main site has two DLCI's one to each remote site. Each remote site only has a single DLCI back to the main site.
On all 3 routers I have added this:
class-map match-all voice-signaling
match dscp af41
class-map match-all voice-traffic
match dscp ef
Each routers S1/0 interface is:
no ip address
no ip mroute-cache
On both sub interfaces on the main site router and the sub interface on each remote site I have:
bandwidth 768 (not sure if I should be using 384 or not since I physically only have 1 T1 at the main site connected to the 2 remote sites???)
for each frame-relay interface-dlci xx command I have:
finally each router has:
map-class frame-relay VOIPovFR
no frame-relay adaptive-shaping
frame-relay cir 768000
frame-relay bc 640
frame-relay be 0
frame-relay mincir 768000
service-policy output voice-policy
if I do a show policy-map interface command I do show packets in the voice signaling and traffic priority queue so know the data is being put in the correct queue it's just that the time to copy a file from site to site has doubled (assuming that's related to not using any of the burst area of the T1 now by using the 768 CIR instead of teh old 1544) and voice sounds OK one minute and terrible the next...
I got all these commands from the Cisco article "VOIP over Frame-Relay with Quality of Service..."
Finally, this is an Avaya phone system