Is it ok to disable the snmp service of CUCM, CUC, and UCCX?

[ccg-collab1]

Hi All,

Our customer is asking if we can disable the snmp service for the UC Applications. Is it possible to disable it? If yes, Can we just do it by deactivating the service from Service Activation? To give you an idea, the customer is asking this because of some security in snmp. Appreciate your advise. Thank you.

[Abhay Singh Reyal]

SNMP is an application layer protocol which facilitates the exchange of management information among network devices, such as nodes, routers, etc. It enables administrators to remotely manage network performance, find and solve network problems and plan for network growth. If you are not using any monitoring tool or any other tool which needs SNMP traps then you can disable it. Also if you are using CER [Cisco Emergency Responder] in your enviroment, then there is a need of SNMP to be enabled.

HTH

Regards

Abhay

[ccg-collab1]

Thank abhay. If it is related to the monitoring tool, does it mean that RTMT is also using this service? Is it safe or best practice to disable this service from the UC Applications? Thank you

[Abhay Singh Reyal]

RTMT runs as a client-side application, monitors the real-time behavior of your system components. Unified RTMT uses Hypertext Transfer Protocol Secure (HTTPS) and Transmission Control Protocol (TCP) to monitor various components. Like mentioned earlier if there is no third party monitoring tool or some application which uses SNMP, then you can stop it.
SNMP will not impact any call routing, media etc. Stopping any SNMP service may result in loss of data because the network management system no longer monitors the Cisco Unified Communications Manager or Cisco Unity Connection network.
Find the below link helpful as well.
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/service/8_5_1/admin/Serviceability/sasnmdes.html
HTH
Regards
Abhay