MPLS frame-mode in ATM ?

[GillieLucent]

Hi all,

I have come across the following statement :

"You can run MPLS in Cell-mode across ATM but not when using Frame Relay or when the ATM structure is built using traditional ATM Forum PVCs"

what is this ATM forum PVC ? is it different from ATM PVC ?

Kindly explain me.

Thanks,

Vijay

[mheusinger]

Hi,

ATM Forum PVC or ATM PVC means the same. When you connect two LSR back-to-back with a PVC you use (AAL5)-Frame mode MPLS. This would not totally exclude cell-mode MPLS, you could still use both, f.e. on two different ATM interfaces in one LSR.

Hope this helps!

Regards, Martin