This writable octet string holds a sequence of parameter name/value pairs used to pinpoint the managed object that the row's clear function should act on. Admins set it before triggering tnClearAction so the device knows precisely which object instance, such as a specific port or interface, to reset. For example, setting it to something like port=1/1/3 targets the clear operation at port 1/1/3 rather than the whole system.