Re: [fw-wiz] Concentrator inside of paired failover firewalls.
--On Friday, September 15, 2006 9:02 AM -0600 Aaron Smith <firstname.lastname@example.org>
> On Thu, 2006-09-14 at 14:55 -0400, Carson Gaspar wrote:[color=green]
>> --On Wednesday, September 13, 2006 2:26 PM -0600 Aaron Smith
>> <email@example.com> wrote:[color=darkred]
>> > Using a crossover cable is not a good idea.
>> > [url]http://marc.theaimsgroup.com/?l=firewall-wizards&m=110633896023171&w=2[/url][/color]
>> Which is exactly the same as a switch failure, and if you can't handle
>> that, then your product/design is crap.[/color]
> Unless you are intelligent and home the firewalls to different switches
> (as we have done). If both switches fail then you have bigger problems
> than firewall failover.
>> This is FUD.[/color]
> How, exactly?[/color]
There are _zero_ reliable commercial HA solutions that will go insane if
you use a cross-over cable and they both loose link at the same time. If
you use 2 switches, and the trunk between them fails, both devices think
they are "up" (yes, you can use multiple trunks, but you can use multiple
x-overs as well - keep it apples to apples). If you use a cross-over cable,
and it fails, both devices think they are "down". Any decent HA system can
handle both failure modes. If an HA system _can't_ handle both failure
modes, it's crap and you shouldn't buy it.
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