[OpenAFS] Re: Redundant Internet links

Derrick Brashear shadow@gmail.com
Sat, 18 Dec 2010 23:26:54 -0500

On Sat, Dec 18, 2010 at 8:05 PM, Jaap Winius <jwinius@umrk.nl> wrote:
> Quoting Derrick Brashear <shadow@gmail.com>:
>>> ... Each database server should never consider that it has any other IP
>>> address except one in particular. The single IP addresses that they
>>> each use to reach their remote companions will never change either. Only
>>> the routing in between will occasionally change as needed when the
>>> main links go down and up.
>> Sure, but will any host's address for some other host be lower than
>> its own address while
>> at the same time that host itself *should be* the lowest host?
>> (It's too early; Does that make sense?)
> The addresses of the DB/file servers, as well as the addresses by which they
> are known each other, will always be the same.


Of note, there are cases where due to one DB server being behind an
router (like a NAT) that a server's idea of its address does not match
what its peers' ideas
are. This can be a valid configuration, if care is taken, which is why
I brought it up.