PIX 535 maximum connections

[JIM T]

We have a PIX 535 with unlimited lisence, it has 1,048,953 in use connections because the timeouts have been changed to 24 hour.

I am addressing this issue but was wondering why its so high when the max concurrent sessions is supposed to be 500,000 as listed in the product spec.

Also when it reaches it max and cannot allocate a connection what PIX syslog error message number would it send?

[Jennifer Halim]

It does support maximum of 500,000 concurrent connections. However, since you have change the timeout to be 24 hours, the connection does not get torn down and there might be lots of idle connection. So even you are seeing 1 million in use connections, the real active connection might not be that many.

I don't believe there is any syslog error messages that will tell you when it can't allocate anymore connection on the PIX. I have searched through the entire PIX syslog, and coulnd't find any.