The network-entity command configures a network entity title (NET) for an IS-IS process.
The undo network-entity command deletes the NET of an IS-IS process.
By default, no NET is configured for an IS-IS process.
| Parameter | Description | Value |
|---|---|---|
net |
Specifies a NET. |
The format is X…X.XXXX.XXXX.XXXX.00, in which X…X indicates an area address, the 12 Xs in the middle indicate the system ID of the switch, and the last 00 indicates the selector (SEL). |
Usage Scenario
NET is the special form of the network service access point (NSAP). After the IS-IS view is displayed, IS-IS can start only when a NET is configured for an IS-IS process.
Area ID: is 1 to 13 bytes in length.
System ID: is 6 bytes in length.
SEL: is 1 byte in length and fixed as 00.
Generally, you only need to configure one NET for an IS-IS process. When an area needs to be redefined, for example, the area needs to be merged with other areas or divided into sub-areas, configure multiple NETs to ensure route correctness.
Precautions
An area address uniquely identifies an area in a routing domain. All the switches in the same Level-1 area must have the same area address. The switches in a Level-2 area can have different area addresses.
The switches in an area or a backbone area must have the same system ID.
A maximum of three area addresses can be configured for an IS-IS process. Therefore, a maximum of three NETs can be configured for an IS-IS process. When configuring multiple NETs, ensure that their system IDs are the same.