How to monitor TCP connections on a device in Spectrum

Document ID : KB000036533
Last Modified Date : 29/11/2018
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We have requirement to monitor number of TCP connections or sessions to specific devices and set threshold to generate alarm if it exceeds a specific threshold. Is there any way to monitor the TCP connections?


A SpectroWATCH can be created on the tcpCurrEstab attribute id 0x10086 which is supported on the SNMP2_Agent application model associated with the device model. The following is the mib definition of the tcpCurrEstab attribute:

tcpCurrEstab OBJECT-TYPE

                SYNTAX Gauge32 (0 .. 4294967295)

                ACCESS read-only

                STATUS current



                "The number of TCP connections for which the current stateis either ESTABLISHED or CLOSE- WAIT."

                ::= { tcp 9 }

Additional Information:

For more information on creating a SpectroWATCH, please reference the "Watches" section of the documentation.