With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
sysCommunityAccess
sys Community Access
1.3.6.1.4.1.9.5.1.1.6.1.1
to read and write all objects in the MIB. A value of readWrite(3) allows the community to read and write all objects except restricted items such as community strings, which cannot be accessed at all. A value of readOnly(2) allows the community to read all objects except restricted items. A value of other(1) allows no access.
Back to CISCO-STACK-MIB MIB page.
IPHost Network monitor allows you to monitor sysCommunityAccess 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.