McLean Pickett wrote:
Hello -
I am working on a large campus design and I am on the fence between using a
VRF-lite implementation (802.1q trunks carrying ospf instances between
devices) and an MPLS VPN deployment.
If I only have a few VRF's then the VRF-lite implementation wouldn't be too
overbearing and would require much less training for the support staff.
However if the number of VRF's where to greatly increase then it seems like
a full blown MPLS network is the better solution.
Sure. I would agree with Oli in that >10 and you want to be looking to MPLS.
We did the exact same thing - started off with vrf-lite and multi-ospf,
then eventually migrated to L3VPN when the overhead of managing the VRFs
got too big.
Are there any Cisco guidelines or does anyone have any hands-on experience
with the maximum number of VRF's\OSPF instances in a VRF-lite deployment?
I am dealing with Sup720-3B's, RFC1918 address space and default routes.
None of the routing tables will be carrying Internet routes.
You can certainly run ~15, we did on the exact same hardware.
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