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New Member

FR over ATM


we have a distribution layer with 7206 routers.

on this router we do ip-routing and fr-switching.

now we have to upgrade the link to these 7206 to atm.

i don´t want to encapsulate the fr-pvc in an ip-tunnel.

is there a possibility on the 7206 routers to configure fr-pvc direct over atm pvc ?

if yes - can u please give me an url on cco (could not find one)

if it is possible on 7206 router - is it also possible on 3640, 3660 ??

second question:

if i would encapsulate the fr-pvc in ip-tunnels - how can i guarantee qos (cir,..) in the tunnel - this would mean i have to configure a individual tunnel for every fr-pvc ????

i have about 100 of them on the 7206 :-(

so in my opinion it would be the best to configure fr-pvc over atm

thanks for answer and greetings from austria !

Cisco Employee

Re: FR over ATM

Hello -

I'm pretty sure I don't understand your dilemma, but I'll take a shot at it. ;)

If the problem is with the switched PVCs you can do FRF.8 on the 7200 and just switch the FR PVC to an ATM PVC:

This way there is no re-encapsulation of FR into ATM. (Though I know of no standard that would allow FR encapsulated into ATM.)

I hope this answers your questions.



New Member

Re: FR over ATM

hi clay,

thanks for your answer - even one(two) things:

a.) what is the difference between frf5 and frf8 ???

b.) if i transport e.g. 50 fr-pvc over atm - am i able to configure such things as cir, be,.. for every fr-pvc in the atm-pvc ??

in other words:

if i transport 50 fr-pvc over atm must i configure 50 atm-pvc (one atm_pvc for one fr_pvc)

or is it possible to configure one "pipe" and transport all fr-pvc over this

one pipe (atm-pvc).

and as i mentioned: what about fr-sla parameters (cir,..) -

c.) is frf5 or frf8 able to transport fr-svc (the fr enddevice calls)

thanks a lot !

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