TFTP over anycast

Sat Apr 6 08:57:52 UTC 2024

> On Apr 6, 2024, at 10:30, Ray Bellis <ray at bellis.me.uk> wrote:
> On 27/02/2024 18:47, William Herrin wrote:
>> Then I'd write a script to monitor the local tftp server and stop frr if it detects any problems with the tftp server.
> There are other ways to achieve this without actually stopping the routing daemon.
> We have DNS servers where the anycast service address is added to a loopback interface (lo1) and only advertised when present.

That’s been the normal way of doing it for some 35 years now.  iBGP advertise, or don’t advertise, the service address, which is attached to the loopback, depending whether you’re ready to service traffic.

                                -Bill