[c-nsp] network design question

[Michael Nicks]

Kind of off-topic, but for what it's worth, I've used the same setup 
when anycasting DNS service. However I found that the main fault 
resulting in service outages usually was not the data-link or network 
layer (either which would have caused a fail-over w/ ospf/bgp), however 
it was the application itself.

That being said, if you opt for something like that, make sure you take 
a look at using a "watcher" script locally that checks the health of the 
service, and if the service check is negative, kill ospf/bgp.

Best Regards,
-Michael

-- 
Michael Nicks
Network Engineer
KanREN
e: mtnicks at kanren.net
o: +1-785-856-9800 x221
m: +1-913-378-6516

Brian Turnbow wrote:
> Another approach is to use ospf (or even bgp)and a loopback address on the server.
> Take a look at zebra http://www.zebra.org/
> You can tune it for failover or load balancing between the switches.
> 
>  Brian