13 Aug
2012
13 Aug
'12
12:14 p.m.
On Sunday 12 August 2012 13:09:56 Christopher Morrow wrote:
anycast can take many forms, including anycast inside a single ASN which to the outside world looks like a single announcement (or even an announcement covered by an aggregate) - 4.2.2.2 falls into that sort of deployment, I believe.
Level3 are the origin AS for 4.2.2.2 - they're obviously not singlehomed so this isn't a suitable comparison. In any case, the purpose of my statement was to draw a line between Anycast to an AS you're singlehomed on vs. Anycast when multihomed - in the latter case you may wish to do more work to ensure desirable bestpath selection, I wasn't trying to state nor imply that Anycast when single-homed doesn't count as Anycast. Regards, Oliver