Hi,
I'd like to ask for the collective opinion on routing in service
provider network serving broadband subscribers:
I have an ASR1k and will be terminating PPPoE broadband subscribers
here. I'll also be terminating my primay internet feed (BGP) here, and I
the future I will have 3 providers and will be multihomed. I also will
have some MPLS vpns for certain customers.
I think I want to have my default routing table carry mostly
loopbacks and direct interface connected routes, while I want to stuff
everything else into VRF's. Those other VRF's are likely to be Internet
(full tables), Subscribers (all the /32's for PPPoE subscribers), and
the odd vrf for any mpls vpn customers. The challenge is that - I think
- I would want to only leak a default route into any other non-Internet
VRF that requires shared service access to it, which should keep the
table sizes down. My question is, does this sound reasonable? Is there
any reason I wouldn't want to set things up this way?
Mike-
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