RE: Dual Ethernet NIC w/ failover

From: John Straiton (jsmailing_at_clickcom.com)
Date: 11/19/03

  • Next message: Andy Farkas: "Re: any other hd-copiers than dd"
    To: "'Chip McClure'" <vhm3@gigguardian.com>
    Date: Wed, 19 Nov 2003 13:07:48 -0500
    
    

    I had thought about that as a possibility. My thought was if I created like
    a /dev/ether0 and then symlink'ed it to /dev/fxp0, in the event of a
    failure, I could just change the link over to fxp1 and my firewall rules,
    dhcpd configurations, et al would still work since they were just reference
    the symlink (assuming I can do something oddball like that).

    I was just hoping that someone with more skill than I had put together a
    more fluid means of all this happening..

    Thanks,
    John
     

    > -----Original Message-----
    > From: Chip McClure [mailto:vhm3@gigguardian.com]
    > Sent: Wednesday, November 19, 2003 1:02 PM
    > To: jsmailing@clickcom.com
    > Cc: freebsd-isp@freebsd.org
    > Subject: Re: Dual Ethernet NIC w/ failover
    >
    > John Straiton said:
    >
    > Hello John,
    >
    > Although I didn't do this for any gigabit nic's, it should
    > work the same, no less.
    >
    > 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 every minute.
    >
    > Chip
    >
    > > Greets!
    > > 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
    > > 704-365-9970x101
    > >
    > >
    > > _______________________________________________
    > > freebsd-isp@freebsd.org mailing list
    > > http://lists.freebsd.org/mailman/listinfo/freebsd-isp
    > > To unsubscribe, send any mail to
    > "freebsd-isp-unsubscribe@freebsd.org"
    >
    >
    > -----
    > Chip McClure
    > Sr. Unix Administrator
    > GigGuardian, Inc.
    >
    > http://www.gigguardian.com/
    > -----
    >
    >
    >

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