User`s guide

XSR User’s Guide 45
3
Managing LAN/WAN Interfaces
Overview of LAN Interfaces
The XSR supports two 10/100 Base-T FastEthernet ports on the XSR 1800
Series branch routers and three 10/100/1000 Base-TGigabitEthernet ports on
the XSR 3000 Series regional routers. All ports are capable of running in half-
and full-duplex modes, and are ANSI/IEEE 802.3 and ANSI/IEEE 802.3u
compliant. These ports connect to an Ethernet network for LAN connectivity.
The Fast/GigabitEthernet interfaces perform the following functions:
 Allow the XSR to connect to networks of speeds of 10 Mbps, 100
Mbps, or 1000 Mbps (using manual settings or auto-negotiation)
 Monitor the status of the link: up or down
 Allow you to issue interface/device configuration commands
through the Command Line Interface (CLI)
 Accumulate MIB-II (RFC-1213) interface statistics regarding the
transmission and reception of bytes and packets
LAN Features
The XSR supports the following LAN interface features:
 Alarms/events - For a complete list, refer to “Alarms/Events and
System Limits” on page 355 in this manual.
 Duplex mode is set using the
duplex command with the following
options:
– Half - half-duplex
– Full - full-duplex
– Auto - auto-negotiation (default)