System Interface; Ip Router Configuration - Alcatel-Lucent 7750 SR OS Configuration Manual

System Interface

The system interface is associated with the network entity (such as a specific router or switch), not
a specific interface. The system interface is also referred to as the loopback address. The system
interface is associated during the configuration of the following entities:
•
•
•
The system interface is used to preserve connectivity (when routing reconvergence is possible)
when an interface fails or is removed. The system interface is used as the router identifier. A
system interface must have an IP address with a 32-bit subnet mask.
7750 SR OS Router Configuration Guide
The termination point of service tunnels
The hops when configuring MPLS paths and LSPs
The addresses on a target router for BGP and LDP peering

IP Router Configuration

Page 21