With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
mpanlDlciLCoRequiredSecurity
mpanl Dlci L Co Required Security
This attribute indicates the required minimum level of security of the trunks on the route. Zero represents the most secure and seven represents the least secure. The trunk's security is indicated by the trunkSecurity attribute of the Trunk component, and has values identical in range and meaning to the requiredSecurity attribute. PORS ensures that any route selected does not contain a trunk whose trunkSecurity attribute is numerically greater than the requiredSecurity.
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IPHost Network monitor allows you to monitor mpanlDlciLCoRequiredSecurity 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.