3Com Switch 7750 SeriesCommand Reference Guide – Routing Protocol Chapter 4 Integrated IS-IS Configuration Commands4-29Parameternetwork-entity-title: Network entity title in the form of X…X.XXXX....XXXX.00, with the12 “X” in the middle as system ID of the router, the last “00” as the SEL and the "X…X"in the front as the area address.DescriptionUse the network-entity command to configure the network entity title (NET) for anIS-IS routing process.Use the undo network-entity command to delete a NET.There is no NET by default.A NET is a network service access point (NSAP), and it is in the range of 8 to 20 bytesfor IS-IS.A NET has three parts: The first part is area ID, which ranges from 1 to 13 bytes. Theroutes of the same area have the same area ID. The second part is the router’ssystem ID of 6 bytes, which is unique within the whole area and backbone area. Thethird part is SEL, the ending byte with the value of 00. You need to configure only 1NET for a router. When repartitioning an area, such as merging or splitting, you canreconfigure the router to ensure correct and continuous routing.Related command: isis, and isis enable.Example# Specify the NET as 10.0001.1010.1020.1030.00, of which 10.0001 is the area IDand 1010.1020.1030 is the system ID.<3Com> system-viewSystem View: return to User View with Ctrl+Z.[3Com] isis[3Com-isis] network-entity 10.0001.1010.1020.1030.004.1.33 preferenceSyntaxpreference value [ clns | ip ]undo preference [ clns | ip ]ViewIS-IS viewParametervalue: Preference value in the range of 1 to 255. It is 15 by default.
