With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
dpnGateMeasuredRoundTripDelayUsec
dpn Gate Measured Round Trip Delay Usec
This attribute indicates the measured Round Trip Delay (msec) discovered with the remote through the Trunk and DpnGateway staging protocols. The value includes emission, propagation, and queuing delays. A 512 byte data packet is used to perform the measurement. A value of zero is displayed when the link is disabled or the measured Round Trip Delay is unknown.
Back to Nortel-Magellan-Passport-DpnTrunksMIB MIB page.
IPHost Network monitor allows you to monitor dpnGateMeasuredRoundTripDelayUsec 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.