With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cmsStsPortRxV3RepBlockOldSrc
cms Sts Port Rx V3 Rep Block Old Src
1.3.6.1.4.1.9.9.721.1.5.1.1.34
This object indicates the number of V3 reports of type 'block old source' received on the port identified by the indices
Back to CISCO-MLD-SNOOPING-MIB MIB page.
IPHost Network monitor allows you to monitor cmsStsPortRxV3RepBlockOldSrc on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.