From: Todd Veillette (tveillette@myeastern.com)
Date: Thu Sep 15 2005 - 23:38:47 GMT-3
You can team Nics, across switches.
-TV
----- Original Message -----
From: "James Ventre" <messageboard@ventrefamily.com>
Cc: <ccielab@groupstudy.com>
Sent: Thursday, September 15, 2005 10:23 AM
Subject: Re: Question on Linux network bonding and Cat 2950 cfg
> >but can this be done between a server and a switch?
> Yes.
>
> You'll likely need to configure the server to use LACP or Hard Code it to
> ON (LACP being the preferred method)
>
> James
>
> John Smith wrote:
>
> Henry,
>
> So when you say etherchannel, do I cfg this between the linux server in
> the cabinet and the 2950 in the cabinet or between the 2950 in the cabinet
> and the 6509 for the raised floor?
>
> I know I can cfg etherchannel between 2 switches, but can this be done
> between a server and a switch?
>
> Also, would the nic's on the server need to support etherchannel as well?
>
> Vic..
>
> Henry Dziewa <HenryD@net2phone.com> wrote:
> Actually, there is going to be a single MAC address being used for all
> addresses
> configured for bond interface, it's an etherchannel. You can see in the
> URL that all interfaces show up
> with the same MAC address, and the MAC is chosen from "eth0" as the
> "eth1" flag indicates
> "NOARP" function. I don't know much about Linux SUSE, but what normally
> happens is that the first associated physical interface's MAC address is
> used for the virtual interface -
> in this case the bond0 interface. You can then assign adidtional virtual
> IP addresses
> on this interface for bond0:1, bond0:2, etc.
>
> Now, the example in the URL shows the same IP's for physical and virtual
> interfaces, this simply
> seem to suggest that there is no separate IP's for physical interfaces.
> Meaning, the failover
> mechanism used with this setup is strictly based on the link checks, the
> miicheck flag only checks
> the interface's status. If you want to have actual check done all the way
> to the default gateway, or some
> other IP destination within the subnet, you could use failover options as
> another module as indicated
> thru a search for SUSE bonding.
>
> Hope that helps.
>
> ________________________________
>
> From: nobody@groupstudy.com on behalf of Muhammad Asif
> Sent: Wed 9/14/2005 9:13 PM
> To: 'John Smith'; ccielab@groupstudy.com Subject: RE: Question on
> Linux network bonding and Cat 2950 cfg
>
> I guess so..
>
> I haven't done this but that's what I think....
>
> You should be OK with the 2950 as it will be learning two different MAC
> addresses from two ports, but the only problem I can think of is from the
> routers perspective how its going to route when it will receive
> information
> about the same ip address from two different MAC addresses!
>
> Or there is some magic that this bonding will do to not to confuse the
> router :)
>
> HTH
>
> -----Original Message-----
> From: nobody@groupstudy.com [ mailto:nobody@groupstudy.com ] On
> Behalf Of John
> Smith
> Sent: Wednesday, September 14, 2005 7:34 PM
> To: Muhammad Asif; ccielab@groupstudy.com Subject: RE: Question on
> Linux network bonding and Cat 2950 cfg
>
> Yes, so right now on the cat 2950 I have interfaces for 104, 105, do I
> need
> to make them both 104? lets say 106 and 107 are for heartbeat between 2
> other servers, so I won't use them.
>
> Muhammad Asif wrote:I am no expert in Linux, but the
> example in the URL that you give, has a
> single IP address configured for all the interfaces along with the bonded
> interface, where as you are asking to have 192.168.20.104, 105, 106 and
> 107
> IPs?
>
> -----Original Message-----
> From: nobody@groupstudy.com [ mailto:nobody@groupstudy.com ] On
> Behalf Of John
> Smith
> Sent: Wednesday, September 14, 2005 5:43 PM
> To: ccielab@groupstudy.com Subject: Question on Linux network bonding
> and Cat 2950 cfg
>
> I'm having some issues putting knowledge into practical use.
>
> If I have a linux server and want to do network bonding on it ( 4
> nic's ),
> lets say I have a 192.168.20.104, 105, 106 and 107 as IP's. What do I
> have
> to on the Cat to support this?
>
> Here's a link on network bonding...
> http://www.novell.com/coolsolutions/feature/15280.html
> Anyone have any thoughts?
>
> Many Thanks.
>
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