Disable or enable the SNMPv1 agent. NOTE: Restart the management module if this MIB object is changed with respect to the value at system bootup time. For example the SNMPv1 agent was set to disabled at system bootup time and now it is enabled. Then restarting the remote supervisor adaptor is required. Also note that when attempting to enable this agent, the following are verified: (1) Is there a valid system contact (2) Is there a valid system name (3) Is there at least one valid community name and for that community name is there one valid IP address or hostname (4) Are all defined community names unique If this verification fails an error response will be returned and the SNMPv1 agent will be left disabled.