With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrPpIpPortLogicalIfIgmpIfQueryMaxRespTime
Virtual Router Passport Ip Port Logical If Igmp If Query Max Resp Time
This attribute specifies the maximum query response time advertised in IGMPv2 queries on this interface. The number of seconds represented by the queryMaxRespTime must be less than the Query Interval.
Back to Nortel-Magellan-Passport-IpMIB MIB page.
IPHost Network monitor allows you to monitor vrPpIpPortLogicalIfIgmpIfQueryMaxRespTime 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 speech servers right now.