topic Re: Redundant network cards ? in Operating System - HP-UX

Redundant network cards ?

Leif Halvarsson_2 — Wed, 03 Dec 2003 10:10:23 GMT

Hi,
As I understand, HP Auto Port Aggregation software can be used for configuring redundant network cards (two cards using the same IP-adress). Is there any other way ?

Re: Redundant network cards ?

Jeff Schussele — Wed, 03 Dec 2003 10:12:46 GMT

Hi Leif,

Service Guard is the only other way I'm aware of. You don't need to define any pkgs, just the NIC redundancy. We do it here on several systems and for multiple NICs on these systems.

Rgds,
Jeff

Re: Redundant network cards ?

Jean-Louis Phelix — Wed, 03 Dec 2003 10:14:46 GMT

Hi,

APA also do load balancing I think. For redundancy you can also use ServiceGuard.

Regards.

Re: Redundant network cards ?

Steven E. Protter — Wed, 03 Dec 2003 10:19:03 GMT

Officially you've covered the bases.

I'm testing a script suite that would regularly test the main NIC and do a switchover if certain conditions exist. It would move the IP address to a backup card.

It seems to be working, but its not quite done yet. It involves the venerable ping command.

SEP

Re: Redundant network cards ?

Massimo Bianchi — Wed, 03 Dec 2003 10:24:52 GMT

For APA, remember that also the switch at the other end must be compatible, and must support that function. In the release notes there is a list...

MC/SG let you have s standby card, in active/passive configuration, not both the cards active.

Topic have been covered, but i have a little note for SEP: better use the linkloop command, to see if network are properly cabled and reachable.

Massimo

Re: Redundant network cards ?

Leif Halvarsson_2 — Wed, 03 Dec 2003 15:00:02 GMT

Hi,
Thanks to all of you. I just wanted to confirm that there was no free alternative before buying APA (i guess MC/SG is a more expensive solution).