NSAP addresses are used when registering or modifying node information. They can also be used when specifying nodes to show, export, or deregister. The format for an NSAP address is either: DNA format - <afi>:<idi>:<predsp>-<locarea>:<nodeid>:<nsel> OSI format - <afi><idi>+<predsp><locarea><nodeid><nsel> Where: <afi> - The AFI (Authority and Format Identifier) <idi> - The IDI (Initial Domain Identifier) <predsp> - The prefix portion of the DSP (Domain Specific Part) <locarea> - The local area portion of the DSP <nodeid> - The node id portion of the DSP <nsel> - The N-Sel (Network Selector) portion of the DSP Each address field contains: AFI 2 decimal digits IDI some number of decimal digits, determined by the AFI PreDSP some number of hex digits, determined by the AFI Local area 4 hexadecimal digits Node id 12 hexadecimal digits N-Sel 2 hexadecimal digits When using DNA format NSAPs, the preDSP, local area, and node id can contain embedded hyphens ("-") to improve readability. Also, leading zeros in the local area and node id fields can be dropped. For example, the following two addresses are equivalent. 39:840:0001:AA-00-04-00-05-04:20 39:840:1:AA0004000504:21 When using OSI format NSAPs, embedded hyphens are not allowed, and leading zeros cannot be dropped in any field. For example: 39840+0001AA000400050421 An N-Sel of "20" specifies the use of the DECnet Phase IV NSP transport. Any other N-Sel value (such as "21") indicates the use of the OSI Transport Class 4 protocol (TP4). If used when indicating nodes to show, export, or deregister, wildcards (indicated by asterisks) can be used to indicate multiple nodes. Either the node id or the local area plus node id can be wildcarded. When using a wildcard, do not specify the N-Sel, For example: 39:840:56A1-0001:* (all nodes in area 39:840:8056A1-0001) 39:840:56A1* (all nodes in all local areas under 39:840:56A1)