Dual Ethernet NIC w/ failover
vhm3 at gigguardian.com
Wed Nov 19 09:40:45 PST 2003
John Straiton said:
Although I didn't do this for any gigabit nic's, it should work the same,
I worte up a small shell script, that pings the gateway device. If the
ping fails, the shell script de-configures the primary interface of that
card, and configures the secondary interface, assuming the identity of the
1st interface. she shell script also write a value to a text file, as to
which is the active interface, so it knows to revert back, if the
secondary were to fail. This script was added into the cron job, to run
> I have seen a number of posts regarding support of the dual ethernet
> cards, however I haven't seen a lot of posts regarding the availability
> of dual ethernet cards with working failover software... I have a couple
> of the Intel 10/100/1000's on hand but it appears that the software they
> use only comes in a linux binary. I'm a bit leary of trying to shoehorn
> it into working with the linux binary compatibility (assuming I could)
> since the whole purpose of having a dual ethernet NIC is to take
> variables *out* of the networking.
> I'm looking to try to hook a 5.1-R machine up to two separate
> switches that connect to the same core and run spanning tree so that a
> failure in either a switch or a network cable would automagically fail
> over to the other port at the same IP.
> Does anyone have any suggestions on dual gigabit NICs that they have
> been able to get into switch-failover mode?
> John Straiton
> jks@ clickcom.com
> Clickcom, Inc
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Sr. Unix Administrator
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