With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgspLinkSlc
Cisco GSP Link Slc
1.3.6.1.4.1.9.9.336.1.6.1.1.1
The Signalling Link Code for this link.
Back to CISCO-ITP-GSP-MIB MIB page.
IPHost Network monitor allows you to monitor cgspLinkSlc on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.