With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
mpanlSigMpanlRemoteBusy
mpanl Sig Mpanl Remote Busy
This attribute counts the number of times transmission of an I-frame was unsuccessful due to a perceived remote busy condition (window closed or remote busy). When this count reaches maximum, it wraps to zero.
Back to Nortel-Magellan-Passport-MpaNetworkLinkMIB MIB page.
IPHost Network monitor allows you to monitor mpanlSigMpanlRemoteBusy 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.