With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
nhrpServerCacheAuthoritative
nhrp Server Cache Authoritative
An indication of whether this cache entry is authoritative, which means the entry was added because of a direct registration request with this server or by Server Cache Synchronization Protocol (SCSP) from an authoritative source.
Back to NHRP-MIB MIB page.
IPHost Network monitor allows you to monitor nhrpServerCacheAuthoritative on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.