Very Computer

For example, one server had five network interfaces (eithernet, fddi, T1,
whatever).  DNS points to IP XXX.XXX.XXX.XXX as www.mysite.com.  I want that
IP available to all interfaces so whichever interface gets the data acts on
it.   I assume something like
this is done in high bandwidth sites.  How are web sites configured?  They
can't just have a T3 plugged into one server interface.

Any insite from high volume site administrators on how they are set up is
appreciated.

Joe

Quote:> Is it possible to set multiple interfaces to the same address?  This would
> give a degree of redundancy if one interface were to go down.  I would like
> to configure the server so that one address could be used and whichever
> interface was less busy took the traffic.

As far as I know there is no way to have any kind of NIC redundancy.
IMO Sun is lacking in this area compared to some of the free OS's.

Depending on your network design you might be able get around this in
other ways. I've done it in the past where I have Arrowpoints in front,
and when one arrowpoint failed, instead of losing half my web farm,
when the secondary kicked in, I configured the inside of the second
Arrowpoint to another network that talked to the backup NICs on all
the Sun webservers. The default route was announced via RDP to the Suns.

Also if you have load balancers in front, you can have 2 NICs on each sun,
change the MAC addresses, have your server pool consist of all the IPs,
and if one load balancer fails, you still are running on all servers.

I haven't tried this way yet myself.

Adam Mazza