With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cospfShamLinkTable
cospf Sham Link Table
1.3.6.1.4.1.9.10.99.6
Information about this router's sham links
Back to CISCO-OSPF-MIB MIB page.
IPHost Network monitor allows you to monitor cospfShamLinkTable 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.