Screen OS

Hi there

I'm hopeing someone might be able to advise.

I have a SSG-140-SB that I want to set up in a cluster with another SSG-140 that I an waiting to recieve in the mail. I do not know if the SSG140 I an waiting to recieve is an SSG-140-SB (256MB memory) or an SSG-140-SH (512MB memory). If it was the latter would a SSG-140-SB and SSG-140-SH work as a cluster in HA mode?

I would really appreciate some input if anyone could advise.

Many thanks in advance.

Kevin

They are compatible, however, you might have to reduce the max sessions on the 512 model.

Many thanks for the quick response rseibert. Would I be required to manually set the max sessions possible on the 512 model?

Those are limites based on the hardware not a configurable parameter.

I would just setup so that the lower value hardware is the primary device in the active/passive cluster.  That way the lower values are active and if a failover occurs you won't be accidently dropping sessions because of  a hardwware limit. 

Very good advice.

Thank you so much for your help.

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@spuluka wrote:

Those are limites based on the hardware not a configurable parameter.

 

I would just setup so that the lower value hardware is the primary device in the active/passive cluster.  That way the lower values are active and if a failover occurs you won't be accidently dropping sessions because of  a hardwware limit. 

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This is incorrect.  You CAN set a lower session limit.

set envar max_sessions=xxxxx

It will require a reboot after.  This is also a requirement if you are running an ISG cluster where one device has 1G and the other has 2G.

Thank you ver much for your input, it's appreciated.

Should I then indeed set a session limit on bothe devices? Sorry to keep troubling you.

Setting the session limit would make sense.

Use this command to see the current max limit on both devices

get session info

Take the LOWER max limit and then set the HIGHER device to the LOWER limit

set envar max_sessions=####