With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cXdslLineConfLinkUpDownTrap
Cisco Xdsl Line Conf Link Up Down Trap
1.3.6.1.4.1.9.9.204.1.4.1.3
This object specifies whether Link Up/Down traps are enabled for this profile.
Back to CISCO-XDSL-LINE-MIB MIB page.
IPHost Network monitor allows you to monitor cXdslLineConfLinkUpDownTrap on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.