Brian A. Seklecki
lavalamp at spiritual-machines.org
Mon Feb 5 10:49:00 CST 2007
I tried for a long time to get LACP/802.3ad style HA between redundant
NICs in the same system and redundant trunked managed switches working
using STP and Bridging technologies.
One layer 3 Address with HA Layer 2/1 connectivity.
I was never able to get it to work w/o the proprietary Intel/Broadcom
stuff. Then I ran out of time.
The better solution is to forget component-level redundany make the
systems active/standby HA with automatic failover and preemption. Use
load balancers for web servers and VCS-style HA for the DB/Appserver side.
On Mon, 5 Feb 2007, Michael_E_Brown at dell.com wrote:
> It appears you are trying to set up a high availability solution, as evidenced by your comment about multiple switches. Without additional switch configuration, and without connecting all the links to the same switch, your bandwitch will be limited as you described.
> From: http://linux-net.osdl.org/index.php/Bonding
> High Availability in a Multiple Switch Topology
> With multiple switches, the configuration of bonding and the network changes dramatically. In multiple switch topologies, there is a trade off between network availability and usable bandwidth.
More information about the Linux-PowerEdge