[f-nsp] ironstack for redundancy

[Jared Valentine]

This has been enhanced in FastIron v7.2 for the FCX series switches to be an immediate/hitless failover (both in router and switch software images)

The process you described is still the case for FGS and FLS though (30 seconds+reboot). 

Jared


On Dec 2, 2010, at 10:29 AM, Igor Ybema <foundry-nsp at ergens.org> wrote:

> Hi there,
> 
> We would like to use Ironstack (fastiron family) to be able to create
> port-channels/trunks over multiple fysical switches to combat single
> switch failures.
> 
> However from the fastiron manual I noticed the following:
> 
> "If the Active Controller fails, the Standby controller waits 30
> seconds, and then takes over as Active Controller, resetting itself
> and all other stack members."
> 
> (a controller is one switch in the stack)
> 
> If this is true (and if it's in the manual it probably is) a ironstack
> can not be used for any redundancy configurations and we have to go
> with other redundancy methods.
> 
> Does anyone have experience with this? Does anyone know why
> brocade/foundry needs to restart the stack if the master/active switch
> fails? Is there maybe a config option to not reset the stack?
> 
> 
> regards, Igor
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