active/active question....

[Joseph Mack NA3T]

On Wed, 30 Aug 2006, Kristoffer Egefelt wrote:

> As I understand it this is no problem for vrrp,
> but heartbeat don't have the necessarry features builtin to handle the
> problems switches and routers arp caches pose, which mean that if
> ultramonkey is preffered, carp or vrrp should be implemented as well...

There are two layers to consider

o ip_vs

o ip and route management (heartbeat, vrrp which detect 
changes in state and run a bunch of scripts)

To get active/active to work you need the layer 4 router 
(here ip_vs) to allow active/active. The only way to do this 
is with saru, which was a proof of principle project. Once 
you have active/active working, you can manage failout any 
way you want. Heartbeat and vrrp isn't what makes 
active/active work.

Joe

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Joseph Mack NA3T EME(B,D), FM05lw North Carolina
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