On 07/08/12 17:00, centos-request@centos.org wrote:
Message: 6 Date: Mon, 06 Aug 2012 21:34:43 +0200 From: Alexander Dalloz ad+lists@uni-x.org Subject: Re: [CentOS] Configure LAGG Interface? To: centos@centos.org Message-ID: 50201C53.2070300@uni-x.org Content-Type: text/plain; charset=ISO-8859-1
Am 06.08.2012 19:44, schrieb Rainer Duffner:
Am 06.08.2012 um 19:22 schrieb Cal Sawyer cal-s@blue-bolt.com:
In my experience, LAG/LACP won't provide aggregatation, only failover and fault tolerance. For link aggregation, you don't need to configure the switch ports - just set bonding to mode=6 for balanced transmit/receive and plug up the the NICs to a group of ports on the switch. However, balance-alb doesn't help with single stream rsync/FTP sessions, etc, but helps a lot with concurrent transmits/receives as encountered in typical fileserver scenarios.
On FreeBSD, you don't get 2*1 Gbit from A to B, but 1*1 Gbit from A to B and another 1*1 Gbit from C to B. "B" being the server with the LAGG interface.
Yup, as i said, which isn't too bad (imho). "Real" LAG/LACP can't provide 2x bandwidth for one stream either, can it?
How is that in CentOS?
It is of course the same, as long as we speak about standardized 802.3ad protocol.
Alexander
The nice thing about balance-alb is that you don't have to care (or forget, in my case) about how the switch is configured. Ever come across a switch that "someone else" has set up LAGs on but nobody can remember (or admit) why? )
Throw arpwatch on the bonded-NICs server and see how the bonded interface flips between the slave MACs as intended
- cal