With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgrtDestRestrictedMSUs
Cisco IP Transfer Point GRT Dest Restricted MS Us
1.3.6.1.4.1.9.9.334.1.2.2.1.11
The number of MSUs transferred for this destination during a restricted route state.
Back to CISCO-ITP-GRT-MIB MIB page.
IPHost Network monitor allows you to monitor cgrtDestRestrictedMSUs on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.