From: John Smith (c00per_omers1@yahoo.com)
Date: Thu Sep 15 2005 - 11:20:01 GMT-3
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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