With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrSresRouteDescriptorLength
Virtual Router Sres Route Descriptor Length
This attribute indicates the maximum number of route descriptors supported by this implementation. The maximum number of hops will be one less because one route descriptor is always required for the destination. This attribute affects the amount of memory used by the route entry table. The larger this attribute is, the more memory the route entry table will use.
Back to Nortel-Magellan-Passport-SourceRouteEndStationMIB MIB page.
IPHost Network monitor allows you to monitor vrSresRouteDescriptorLength 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.