For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

Keith_Richards_'s avatar
Keith_Richards_
Icon for Nimbostratus rankNimbostratus
Apr 07, 2008

Client 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...
management
monitoring
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Apr 09, 2008
I was talking over this with Keith and we found some relevant details in SOL7946 (Click here):

 

 

 

* Client Connects

 

 

The Client Connects section represents the total number of new connection flows created by TMM. This includes all connections – it is not limited to any specific type or protocol.

 

 

* Client Accepts

 

 

The Client Accepts section represents the total number of acknowledgments for TCP (SYN+ACK) segments received from clients for a standard virtual server using a TCP profile. The Client Accepts section differs from the Clients Connects section because the Client Accepts section only reports the number of TCP segments that were accepted by the client.

 

 

* Server Connects

 

 

The Server Connects section represents the total number of TCP acknowledgment segments (SYN+ACK) received from the server for a standard virtual server using a TCP profile.

 

 

 

 

This part isn't quite clear to me:

 

 

"The Client Accepts section differs from the Clients Connects section because the Client Accepts section only reports the number of TCP segments that were accepted by the client."

 

 

Does this mean that the Client Connects statistic measures the number of SYN ACKs sent to the client and Client Accepts measures the number of three way handshakes completed (times that the client ACK'd the SYN ACK)?

 

 

Thanks,

 

Aaron