From: Craig King (craig.king@comcast.net)
Date: Wed Oct 30 2002 - 17:33:20 GMT-3
Etherchannel actively load balances on both links (which link depends on
source/destination addressing), so both links are active and carry traffic.
2 FastEthernet ports bonded together could transport 400Mbps if running full
duplex (in theory). Only when one link fails will all traffic cross a
single link.
See
http://www.cisco.com/warp/public/cc/techno/media/lan/ether/channel/prodlit/f
aste_an.htm for more detail.
----- Original Message -----
From: "R. Benjamin Kessler" <bk-lists@kesslerconsulting.com>
To: "'Nate Kleven'" <cciemail@intellinet.ws>; <ccielab@groupstudy.com>
Sent: Wednesday, October 30, 2002 2:38 PM
Subject: RE: FastEther Channel
> If you have a server with two NICs, you can connect one to each switch
> and configure fail-over (only one active at a time).
>
> If you connect the two NICs to the same switch you can do port
> aggregation (FastEtherChannel) to get more than 100Mb of bandwidth.
>
> I don't think you can "split" these NICs between switches and have them
> both active - you would have CAM table issues.
>
> Remember, the way Etherchannel works, traffic between two end points
> (e.g. server A and client B) will always cross the same "wire" (unless
> there's a failure) which means that you won't get more throughput than
> is available from a single pipe.
>
> Hope this helps,
>
> Ben
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Nate Kleven
> Sent: Wednesday, October 30, 2002 12:33 PM
> To: ccielab@groupstudy.com
> Subject: FastEther Channel
>
> Can I build a FastEther channel to a server if it is homed to two
> different
> chassis? In other words, if I had a teaming NIC, can I plug one
> connection
> into SwitchA and the second into SwitchB for redundancy? Is there a
> better
> way to do that?
>
> Thanks.
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