For my diploma thesis I need to measure some readings regarding VoIP traffic over a frame relay connection.
I have managed to get a local university to let me work in their cisco lab, but I will have only one day to get the job done (monday) and I will not get much support from the guys there.
I am a little familiar with switch config and of course with routing but not so much with the CISCO specific stuff.
At the lab aviable are:
routers: 2500, 2600 and 3600 and switches: 2900 and 2950.
The object of the test is to check what effects it has to insert a FR link into a connection in terms of end2end quality of VoIP traffic (MOS). (e.g. none ), header compression,...?
What I need is just a simple frame relay connection to route my stuff over.
I will have two endpoints on the two sides and a network simulator in between inserting delay and jitter and whatever.
So please don't be mad if I ask some newbie questions, but I don't have much knowledge about CISCO config and I've only got this one shot, so I need to get it right the first time
So please could you walk the steps through with me:
1) which of the routers should I use? (shouldn't make much of a difference, should it?)
2) use one of the serials for config and connect the other to the other router
3) Now please let's walk the config together:
Following the example in the "Configuring Frame Relay"-guide wcdfrely.pdf:
Configuration for Router 1
interface serial 0
ip address 18.104.22.168 255.255.255.0
frame-relay map ip 22.214.171.124 43
Configuration for Router 2
interface serial 0
ip address 126.96.36.199 255.255.255.0
frame-relay map ip 188.8.131.52 43
Is that all? Shouldn't I have to config an IP-Interface as well for the Ethernet-port?
Do I have to setup map-classes?
Do I have to define routes?
Or does it just act transparent?
Then I could go on and play with the frame fragmentation of the non-voip-traffic (vOIP pakets are not supposed to be fragmented, but how does the router know a packet is voip?)
Router(config)# map-class frame-relay map-class-name
Router(config-map-class)# frame-relay fragment fragment_size
Or I could play with IP header compression or traffic shaping and so on.
Allright, I think that's it. If I missed anything, please notify me. Well, monday's gonna be the big day ;-)
Thanks for your help and greetings,