With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
caqMacAceDestMacMask
Cisco Access Control List QoS Mac Ace Destination Mac Mask
1.3.6.1.4.1.9.9.179.1.3.4.1.8
Indicates the 48 bit destination MAC address mask.
Back to CISCO-CATOS-ACL-QOS-MIB MIB page.
IPHost Network monitor allows you to monitor caqMacAceDestMacMask on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.