With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
frUniDnaCugInterlockCode
Frame Relay Uni Dna Cug Interlock Code
This attribute specifies the CUG identifier of a national or international CUG call. It is an arbitrary number and it also can be called CUG in some descriptions. Interfaces (DNA's) defined with this number can make calls to DNA's with the same interlockCode.
Back to Nortel-Magellan-Passport-FrameRelayUniMIB MIB page.
IPHost Network monitor allows you to monitor frUniDnaCugInterlockCode on Allied Telesis device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Nortel switches right now.