SmartMIB Small Solution:

TCP General Traffic & Error Statistics

(SM-SmallSol00016)

Solution Overview:
 

This management solution focuses on monitoring ONLY the overall TCP sessions statistics for TCP session connections established against the particular network element being polled.

The solution defines a module name and description, then initiates the polling process under which the managed Devices are fed into the polling SNMP engine, where all active TCP connections statistics are collected and a history of overall sessions statistics are kept for future baselining of network activities.

The user has the choice to graph all of the following calculated objects:

• tcpActiveOpens and tcpPassiveOpens: representing the number of TCP connections that transitioned from SYN-SENT state into CLOSED and SYN-RCVD state into LISTEN state respectively.

• tcpAttemptFails: representing the number of TCP connections that transitioned from SYN-SENT or SYN-RCVD states into the CLOSED state and from the SYN-RCVD state into the LISTEN state.

• tcpEstabResets: representing the number of TCP connections that transitioned from the ESTABLISHED or CLOSE-WAIT states to the CLOSED state.

• tcpCurrEstab: representing the number of TCP connections where the current state is either ESTABLISHED or CLOSE-WAIT.

• tcpInSegs and tcpOutSegs: representing the total number of segments received and the total number of segments sent (excluding the segments containing only retransmitted octets) respectively.

• tcpRetransSegs: representing the number of retransmitted segments including segments with one or more retransmitted octets.

• tcpInErrs: representing the number of segments received in error.

• tcpOutRsts: representing the number of segments sent containing the RST flag.

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