LSMS listens at SNMP agent standard port 161 for Get/Set messages. When a Get/Set message is received, LSMS checks the Set message for validity (whether the v3 user that sent the Set request for resyncVar is valid and has permission to set the variable). If the request is valid, resyncVar is set and thereafter the alarm resynchronization mechanism (including error scenarios) between LSMS and the v3-based NMS will start.