ethernet bonding

From: Matthew Lenz (matthew_at_nocturnal.org)
Date: 07/31/05

  • Next message: Daniel McBrearty: "Re: can't connect with putty" 
    To: <debian-user@lists.debian.org>
Date: Sun, 31 Jul 2005 02:07:43 -0500

    tring to do a bit of research on the bond interfaces. in the description it
    talks about sending data out the bonded interfaces in a round robin type
    fashion. i was under the impression that the bond interfaces were for
    failover usage.

    I've got 9 debian servers broken up into 4 different vlans and each server
    has two ethernet ports in it. I've got two identical managed switches. i'd
    like it so that if any one of the switches were go to down that everything
    will still function and that if interface A on server 1 goes down that
    interface B on server one takes over (lets assume that each server has an
    interface connected to switch A and and interface connected to switch B.

    the different vlans are connected to a firewall so that traffic between the
    vlans (different subnets) is filtered and routed via the firewall. I've got
    two firewalls and each has all its interfaces connected to one of the two
    switches. I've got two wan ethernet connections.. one of each connected to
    one of each of the switches.

    The firewalls are pfsense and use a syncing technique so that if one
    firewall fails the other takes over. From what I understand if I have the
    switches trunked together as long as only one of the interfaces on a server
    is active at a time i should be able to get this done properly.

    Does the ifenslave functionality do this? do both bonded interfaces always
    have link? these are dell 5324 gig switches.. (pretty nice) and run IOS
    afaik. If the ifenslave doesn't do what i want I wonder if its possible to
    make the switches communicate and only have one interface enabled at a time.

    Anyone ever do anything like this? 

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