System Interface; Network Interface; Basic Configuration - Alcatel-Lucent 7450 Configuration Manual

Basic Configuration

A system interface and network interface should be configured.

System Interface

The system interface is associated with the network entity (such as a specific Alcatel-Lucent
router), 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.

Network Interface

A network interface can be configured on one of the following entities a physical port or
LAG:
For the 7950 XRS, a network interface can be configured on either a physical port or Ethernet
LAG interface.
Basic Configuration
Refer to each specific chapter for specific routing protocol information and command syntax
to configure protocols such as OSPF and BGP.
The most basic router configuration must have the following:
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• Configure appropriate routing protocols.
• 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
• A physical or logical port
• A SONET/SDH channel
• System name
• System address
Router Configuration Guide