Symptom
SNMP is not working after every node reload.
CLI command "show process | include snmp" gives empty output.
Conditions
ISE 3.2 until Patch 3
ISE 3.3 without any patches
Workaround
Disable snmp -server configuration and configure it again.
Further Problem Description
In case of upgrading from ISE 3.1 or prior, please re-configure all the snmp settings in Cisco ISE CLI.
For later ISE releases, to ensure the changes take effect after applying a patch level or upgrading to a later release that includes the fix, toggle the snmp-server enable setting.
no snmp-server enable
snmp-server enable