Active Connection clear time after node down

Hi All,

 

I have a question.

 

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There are two Pool members in a one virtual server.

 

nPath configuration and use Performance L4.

 

Idle time of FastL4 profile is 300 seconds.

 

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One node is down, but the active connection is not cleared after 300 seconds.

 

I experienced a Active connection clear after about 400 seconds.

 

I want to know why. Does this relate to the options below?

 

1. Fast L4 Profile -> Reset on Timeout(Disable)
2. Pools -> Action On Service Down(None)

Thanks.