With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
traceRcvrX25DnaPacketSizes
trace Receiver X25 Dna Packet Sizes
1.3.6.1.4.1.562.2.4.1.106.2.2.2.13.1.2
This attribute specifies the allowable packet sizes supported for calls using this Dna. Description of bits: n16(0) n32(1) n64(2) n128(3) n256(4) n512(5) n1024(6) n2048(7) n4096(8)
Back to Nortel-Magellan-Passport-X25TraceRcvrMIB MIB page.
IPHost Network monitor allows you to monitor traceRcvrX25DnaPacketSizes 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.