topic Re: Network Failtover in Operating System - HP-UX

Network Failtover

Richard Cen — Thu, 01 Jun 2000 20:35:42 GMT

I am trying to config a HP 9000 SRV/HPUX 11
to hav HOt Standby NIC & Switch, Can anyone tell me where I can obtain information or documents?

Re: Network Failtover

Syed Naseer_1 — Thu, 01 Jun 2000 21:08:26 GMT

The best approach would be to have MC/ServiceGuard installed. Information about configuring your NIC for HOT failover can be obtained from the "Instant Information CD" supplied with your instllation CD, under "MC/ServiceGuard"..

Re: Network Failtover

rajsri — Fri, 02 Jun 2000 02:22:10 GMT

hi
what i understand from ur question is to have second lan as stand by , with the same IP as primary lan so if primary lan card goes down u can access through secondaray.

solution for this :
1.there is a software called Auto Port Aggregation which will do Load balansing and High availabilty ,you can have same IP for upto 4 cards.

other alternative is to configure with different ip and same host name , but this is not reliable , in here session will fail , when lan fails .

Re: Network Failtover

Chris Weaver — Fri, 14 Jul 2000 02:14:25 GMT

>solution for this :
>1.there is a software called Auto Port
>Aggregation which will do Load balansing
>and High availabilty ,you can have same IP
>for up to 4 cards.

Can you provide some more information on this, web link perhaps?

>other alternative is to configure with
>different ip and same host name , but this
>is not reliable , in here session will
>fail , when lan fails .

My problem with this is the HP routing table is not removing the interface when the link is down and thus packets headed to that interface just die.
In my case one of the two gets listed first for the local subnet and the other gets the default so depending on which link dies I either loose local connectivity or remote.

Re: Network Failtover

melvyn burnard — Fri, 14 Jul 2000 06:06:28 GMT

Go read the APA sections under:

http://www.docs.hp.com/hpux/communications/#doc

This should help you.