MPLS TE Network Design - Need Advice

tckoon · ‎03-16-2008

Please refer to attached diagram.

TE tunnels is configured between Site A and Site B, fully meshed.

But I have Site C, due to geographical near to Site B , the link is connect to site B PE routers, not to P router.

Q: To reach site A shall I just build tunnel between C to A.

Or, I just need C to B will do ??

Assume packet will flow from C to B tunnel, exist then via tunnel B to A to reached network in site A.

Regards

mheusing · ‎03-16-2008

Hi,

it depends on your traffic. The tunnel endpoint will use an implicit-null label (PHP). Thus site B will perform a lookup on the "A-C" traffic. In other words: there is no end-to-end LSP between A and C, which would be required for example for a MPLS L3VPN.

Regards, Martin