Enterasys Networks X-PeditionTM manual Overview of LAN Interfaces, LAN Features

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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-1in 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.

XSR User’s Guide 3-1