Partial vs Full tables
William Herrin
bill at herrin.us
Thu Jun 11 16:17:31 UTC 2020
On Thu, Jun 11, 2020 at 9:08 AM brad dreisbach <bradd at us.ntt.net> wrote:
> 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.
Hi Brad,
Don't the ACLs generally live in a partition of the TCAM too? So
you're going from two constant-time TCAM lookups per packet (route,
acls) to three (route, urpf, acls)? Not rhetorical; getting close to
the edge of my knowledge here.
Regards,
Bill Herrin
--
William Herrin
bill at herrin.us
https://bill.herrin.us/
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