Partial vs Full tables

Brian Johnson brian.johnson at netgeek.us
Thu Jun 11 16:38:13 UTC 2020


> On Jun 10, 2020, at 6:40 PM, brad dreisbach <bradd at us.ntt.net> wrote:
> 
> On Thu, Jun 11, 2020 at 12:01:38AM +0200, Baldur Norddahl wrote:
>> Am I correct in assuming loose mode RPF only drops packets from unannounced
>> address space in the global routing table? And the downside of doing so is
>> that sometimes we do receive packets from that address space, usually back
>> scatter from traceroute or other ICMP messages.
> 
> uRPF absolutely kills the pps performance or your hardware due to the packet
> having to be recirculated to do the check(at least this is the case on every
> platform that ive ever tested it on). use acl's to protect your edge.
> 
> -b


Completely agree for edge scenario 100%.

And now for Bill to talk down to me…. :/


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