With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
pppLnkRemoteMru
ppp Lnk Remote Mru
1.3.6.1.2.1.10.23.2.11.1.9
This is the current value of the Maximum Receive Unit (Mru) for the remote Ppp entity. This value is the Mru that the local entity is using when sending packets to the remote Ppp entity.
Back to Nortel-Magellan-Passport-PppMIB MIB page.
IPHost Network monitor allows you to monitor pppLnkRemoteMru 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 secure routers right now.
