With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrPpSrseAreRdLimit
Virtual Router Passport Srse Are Rd Limit
This attribute specifies the number of route descriptors allowed in an All Routes Explore frame received on a SourceRouteBridgePort or SourceRouteTransparentBridgePort. Current source route bridge implementations limit the areRdLimit to a value in the range 0 to 8.
Back to Nortel-Magellan-Passport-BridgeMIB MIB page.
IPHost Network monitor allows you to monitor vrPpSrseAreRdLimit 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 multiplexers right now.