[ExchangeList] Re: SMTP Load Balancer
- From: "Byron \(Yahoo\)" <snail945@xxxxxxxxx>
- To: <exchangelist@xxxxxxxxxxxxx>
- Date: Tue, 29 Aug 2006 13:16:59 -0700
my advise:
- buildout network redundancy - just consider it, even if it's a much cheaper
backup circuit. use bgp multihoming to advertise your public ip blocks.
otherwise investing in a complex interior would be moot if you lost local loop
- connectivity to your upstream provider. perhaps it's a data center and you
have some additonal confidence in the local side.
- load-balancing - we implement and maintain most of the commercial
loadbalancers, windows NLB and also some open source. use windows NLB if all
you need to do is basic 2 system and smtp. it's pretty easy to use. if you have
more advanced application needs, avialablity/performance awareness and larger
number of systems then consider a dedicated hardware solution. We have recntly
started doing more work with coyote point LBs. They are much cheaper than F5
or netscalar (but without many of the bells and wistles, more advanced
technologies). They make the jump from server based to central based a little
more rational, again, depending on your needs.
hit me off-line if you'd like to chat more re the network and LB thoughts.
byron
Byron Kennedy
Principal
kennedytechnologygroup
www.kennedytechgroup.com
----- Original Message -----
From: Chris Wall
To: exchangelist@xxxxxxxxxxxxx
Sent: Tuesday, August 29, 2006 11:05 AM
Subject: [ExchangeList] Re: SMTP Load Balancer
We used to use the BigIP devices as well, but since NLB (network load
balancing) was introduced for free with Windows 2003, we use that as our
solution and no longer use the expensive BigIP devices.
I would recommend looking into that.
Chris
------------------------------------------------------------------------------
From: exchangelist-bounce@xxxxxxxxxxxxx
[mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Mike French
Sent: Tuesday, August 29, 2006 1:52 PM
To: exchangelist@xxxxxxxxxxxxx
Subject: [ExchangeList] SMTP Load Balancer
Kinda off topic? But I have to ask:
Scenario:
Multiple Firewalls (5) on the perimeter
Single Large pipe to the INET
We need to load balance SMTP traffic to the Perimeter firewalls (SMTP is the
only concern), if firewall 1 is saturated then go to firewall 2 and so on.
My question is, since I have little experience with load balancers, anyone
have a short list of vendors that they have had good luck with that provides
this type of load balancing? I would imagine this scenario would be pretty
simple. F5 BIG-IP for instance? Or is that over kill? Just looking to narrow
down a search without having to "Drink the Kool-aid" from vendor contacts..
Mike French
Acclaim Networks
754 Port America Place
Suite 150
Grapevine, TX 76051
(888) 327-5647
(817) 488-1030 x104
FAX (817) 488-1103
Mike.French@xxxxxxxxxxxxxxxxxxx
www.acclaimnetworks.com
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