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List:       james-user
Subject:    Re: james and SMART_HOST (DH)
From:       bill parducci <bill () parducci ! net>
Date:       2003-01-30 2:01:42
[Download RAW message or body]

i'll start with a few simple graphics and we can go from there. i'll try 
to get something out tonight.

Noel J. Bergman wrote:
 >
> Note about load balancing.  James doesn't have to refuse connections to
> cause load balancing to occur.  By setting up a number of MX records with
> the same priority, the RFC mandates that they be chosen randomly, thus
> assuring load balancing behavior over peers.

right. i was just referring to your example where load balancing was 
demonstrated with same priority MX records; asymmetric MX entries will 
'load balance' (failover) when the lower MX record host refuses 
connections.  not an optimum solution but it will work if a secondary 
server is off site for example, although only really practical for 
traffic bursts as all sorts of queuing issues will arise.

b


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