"uknown" in session end reason?

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"uknown" in session end reason?

L1 Bithead

Have any of you seen "unknown" in the "session end reason" field?

PA-5220 running 8.1.8.




L2 Linker

I usually see unkown for incomplete TCP hanshake.  What protocol/App is it?


A bunch are UDP, so there is no handshake.

But some are TCP.

Some are >1Gb of data transfer.

It's all over the map.unknown-session-end-reason2.png

Premature session end on the DP's is the only thing that comes to mind, but that is only a guess.

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