> From: Niall Donaghy <[email protected]> > Sent: Wednesday, May 22, 2019 12:31 PM > > OP>> Are there non-technical reasons for leaving the Internet on the default > RIB? > Adam> Are there technical reasons please? > > How about: > > uRPF causing discarded packets in a multi-VRF environment, eg: > - Internet VRF, Private VRF #1, Private VRF #2. > - Customers connect to all and advertise same prefixes to all. > - Peers connect to perhaps Internet and a Private VRF and advertise same > prefixes to all. > - Private VRFs reach Internet VRF via default routes over logical tunnels > (BGP). > - uRPF loose causes discards for some asymmetric traffic flows crossing > multiple VRFs. > I have a sympathy for your convoluted setup, however the above argument is a strawman logical fallacy unless you can show how moving to Internet in a default table would have helped to solve the uRPF problem.
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