Forum Discussion
Keith_Richards_
Nimbostratus
Apr 07, 2008Client Connects performance graph
Please can anyone explain the difference between a Client Connect, Client Accept and Server Connect? There are three different SNMP OIDs for new connections (sysStatClientTotConns, sysTcpStatAccepts a...
Deb_Allen_18
Apr 10, 2008Historic F5 Account
Not sure what they were trying to say there, but it contradicts itself - is it what we rec'd from the client, or what the client accepted? since we can only really measure the first, it's more likely to be correct.
Just guessing here, but given our lexicon, I'm fairly certain that for TCP connections the Client Connects counter would increment when connections reach SYN-RCVD state (immediately after a SYN is received from any client), and the Client Accepts counter would increment only after a connection reached the ESTABLISHED state (handshake completed) -- the difference being the number of nascent connections that died having never completed the handshake.
Connects would also include UDP, but then again both counters may increment in tandem for UDP since there is no handshake. Some skewing might also be expected if Loose Init were enabled. (The last is the most tenuous guess of all, just thinking all the data may not be in the conn table to count accurately at any given point.)
I think I'll see if the solution can be clarified. Thanks for bringing this to light, guys.
/d
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