nanog mailing list archives
Re: Anycast but for egress
From: Joe Maimon <jmaimon () jmaimon com>
Date: Thu, 29 Jul 2021 16:58:34 -0400
Vimal wrote:
Its definitely possible, but would need a layer of software (kernel mode) on all the anycast holders synchronizing state to ensure asymmetric replies/connections get forwarded/shifted to the correct host.(Unsure if this is the right forum to ask this question, but here goes:)From what I understand, IP Anycast can be used to steer traffic into a server that's close to the client.I am curious if anyone here has/encountered a setup where they use anycast IP on their gateways... to have a predictable egress IP for their traffic, regardless of where they are located?For example, a search engine crawler could in principle have the same IP advertised all over the world, but it looks like they don't... I wonder why?-- Vimal
If the goals are worth that kind of effort is another question. And performance is likely to be "tricky".
Current thread:
- Re: Anycast but for egress, (continued)
- Re: Anycast but for egress Baldur Norddahl (Jul 28)
- Re: Anycast but for egress Baldur Norddahl (Jul 28)
- Re: Anycast but for egress Mark Tinka (Jul 28)
- Re: Anycast but for egress Randy Bush (Jul 28)
- Re: Anycast but for egress Bill Woodcock (Jul 28)
- Re: Anycast but for egress Mark Tinka (Jul 28)
- Re: Anycast but for egress Vimal (Jul 28)
- Re: Anycast but for egress William Herrin (Jul 28)
- Re: Anycast but for egress Glenn McGurrin via NANOG (Jul 28)
- Re: Anycast but for egress Vimal (Jul 29)
- Re: Anycast but for egress Christopher Morrow (Jul 30)