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3Com Switch 7750 Series
Command Reference Guide – Routing Protocol Chapter 4 Integrated IS-IS Configuration Commands
4-29
Parameter
network-entity-title: Network entity title in the form of X…X.XXXX....XXXX.00, with the
12 “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.
Description
Use the network-entity command to configure the network entity title (NET) for an
IS-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 bytes
for IS-IS.
A NET has three parts: The first part is area ID, which ranges from 1 to 13 bytes. The
routes of the same area have the same area ID. The second part is the router’s
system ID of 6 bytes, which is unique within the whole area and backbone area. The
third part is SEL, the ending byte with the value of 00. You need to configure only 1
NET for a router. When repartitioning an area, such as merging or splitting, you can
reconfigure 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 ID
and 1010.1020.1030 is the system ID.
<3Com> system-view
System View: return to User View with Ctrl+Z.
[3Com] isis
[3Com-isis] network-entity 10.0001.1010.1020.1030.00
4.1.33 preference
Syntax
preference value [ clns | ip ]
undo preference [ clns | ip ]
View
IS-IS view
Parameter
value: Preference value in the range of 1 to 255. It is 15 by default.