i faced strange issue really regarding implementing end to end QoS on cisco routers,i have the following network scenario:
1-headquarter network with main policy router and databse and appliction servers
2-100 remote branch that r using application from headquarter.
3-we have brnches that are connected to the headquarter with VSAT connection
4-we have GRE tunneling running between all the brnches and headquarter with 128K fofr each tunnel..
5.the problem i am facing is in the brnches that uses VSAT connection to the headquarter,the appliction performance is really slow in all these branches
6.i tried to solve the problem using QoS since the 128 link for each branch is used also for mail access and inertnet.
the problem i am facing is that i tried to implement end to end QoS for the application that remote branches uses coz they said its running slow..but with no real improvment for the performance!!i tried CBWFQ,LLQ,MQC,i implemented qos pre-classify command coz i have tunnels but i didnt get any enhacement,can anybody help me in this case?what is the proper configuration.