On 30/11/2016 11:23, Ryan L wrote:
Thanks guys, this is good information.
I will be using some 6500s with Sup720 - for the time being - on this
particular application.
Just to make sure I've properly articulated, the PE routers at each site
are my only layer 3 termination point, and would also be doing transit
routing between locations via iBGP over my IGP as well (so technically P
router duties as well?) -- more or less every job except for the access
aggregation, which would go ToR.
Yes. Our previous topology was only 2-deep:
PExN -(layer 3 ospf/ibgp/ldp)- 6500/sup720 PE -(layer2)- edge switch
...with the 6500 being a P/PE, and terminating first-hop routing for
thousands of hosts in vlans on the edge switches, into SVIs inside
L3VPN. As noted, subject to some caveats about aggregate labels &
recirculation on that platform, we had no issues, it has been very solid
for many years.
There are more layers involved now, but we still have the L2/L3 boundary
on a P/PE, and it still works.
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