With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrBrSrbBridgeLfMode
Virtual Router Br Srb Bridge Lf Mode
This attribute indicates whether the bridge operates using the older 3-bit length negotiation field or the newer 6-bit length field in the routing information field. Only the 3-bit field is supported at this time.
Back to Nortel-Magellan-Passport-BridgeMIB MIB page.
IPHost Network monitor allows you to monitor vrBrSrbBridgeLfMode 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.