The MPLS WG Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Creating labels when VRF defined?
John Smith wrote:
>
> What is the use of the aggregate label?
>
> Why will we ever want to create and assign a label (i think they call it the aggregate
> label) when a VRF is created?
>
> I can understand the utility of assigning labels when some interfaces are bound to the
> VRFs but not when only a VRF is created?
>
> Any pointers on why we may want to do that?
What about traffic destined for the PE router itself.
For instance, given a topology:
CE1 ---- PE1 ---- {mpls cloud} --- PE2
Assuming that PE2 has a VRF that's configured to be a part of the same
VPN that CE1 is in, CE2 can send traffic to PE2 (perhaps to an
automatically-created loopback interface in that VRF). In order to do
this, the VRF on PE2 needs to have a label.
-- David
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