3Com 3C971-F manual Windows NT Driver Installation

3-18 CHAPTER 3: WINDOWS NT DRIVER INSTALLATION

Complete substeps c–f below for enabled clients. Otherwise, go to substep a to select another client or go to step 8 to exit the LEC ATM Adapter configuration.

cSet the MTU Size.

This entry is used by the client to request an MTU (Maximum Transfer Unit) size from the server. The server, in turn, replies with an MTU equal to or less than the requested value. All nodes that are part of the same logical IP subnet must use the same MTU size. Refer to your network documentation to determine the appropriate setting.

A setting of 1514 is recommended for ATM networks that interface with an Ethernet LAN. If ATM nodes are the only end-nodes on the network, a setting of 9K will dramatically improve performance.

dEnter the ELAN Name.

This is the network name of the server that you prefer the client to join. Configuration servers, such as the 3Com Cellplex 7000, require the ELAN name of the LES you want the client to join. Refer to your server documentation to determine the specific requirements.

eSelect the LECS/LES address option.

There are two radio buttons to set the type of client contact at bootup.

■LECS option: Contacts the LAN emulation configuration server with the 20-byte address in the ATM Address box. In turn, the LECS supplies the client with all the necessary information to contact the appropriate LAN emulation server (LES).