IS IS NET
Table of Contents
Introduction
NET identifies each ISIS router.
Network Entity Title
- NET is in a type of an NSAP, but with n-selector set to 00. It is the address of the network entity. Usually NSAP identifies a host with network services, similar to a socket (IP src/dst and port src/dst).
- NET Format
| AF | Area Address | System ID | NSEL |
| 1 byte | 1-13 bytes | 6 bytes | 1 byte |
- A common practice is to use the loopback address as part of the router's NET. For example a NET with a router using loopback0's IP address 192.168.10.1 and belonging to area 1, would like like:
| AF | Area | Loopback | NSEL |
| 49. | 0001. | 1921.6810.0010. | 00 |
- .49 is designated as a private range.
Relevant Commands
network
R1(config-router)# network (net value)
Show clns
show clns
Show clns protocol
show clns protocol
