Enterasys Networks Security Router X-PeditionTM - Manual (Page 83)

XSR User’s Guide 3-1
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-T GigabitEthernet 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, System Limits, and Standard
ASCII Table” on page A-1 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)
• Packet filtering - the interface will receive:
– All broadcast packets
– All multicast packets
– Unicast packets which have the MAC addresses of the device
• Maximum Receive Unit (MRU) - all frames less than or equal to 1518 bytes are accepted
including the 4-byte FCS.
• Oversized packets greater than 1518 bytes are not accepted.
• Runt packets of 64 bytes or less are not accepted.