Configuring Security using Device Manager 161Field DescriptionContextEngineID The contextEngineID that indicates the locationof the context in which management informationis accessed when using the community stringspecified by the corresponding instance ofsnmpCommunityName. The default value is thesnmpEngineID of the entity in which this object isinstantiated.ContextName The context in which management informationis accessed when using the community stringspecified by the corresponding instance ofsnmpCommunityName.TransportTag This object specifies a set of transport endpointsthat are associated a community string. Thecommunity string is only valid when found in anSNMPv1 or SNMPv2c message received from oneof these transport endpoints, or when used in anSNMPv1 or SNMPv2c message that is sent to oneof these transport endpoints.StorageType The storage type for this conceptual row in thesnmpCommunityTable. Conceptual rows that havethe value permanent do not allow write-access toany columnar object in the row.Management TargetsThe concept of the SNMPv3 management target is similar to trap receiversin SNMPv1 and SNMPv2c. Management targets are defined with the helpof three tables.Management Target Tables"Management Target Tables" (page 161) describes the that help to definethe management targets.Table 75Management target tablesTable Name DescriptionTarget Address table Lists the IP address and destination UDP portnumber of stations that receive trap or informmessages.Target Parameters table Specifies how to format and process an outgoingmessage that is sent to an associated targetaddress.Notify table Specifies the type of message to send to amanagement target: trap or inform.Nortel Ethernet Routing Switch 2500 SeriesSecurity — Configuration and ManagementNN47215-505 (323165-B) 02.01 Standard4.1 19 November 2007Copyright © 2007, Nortel Networks.