IBM SC30-3681-08 manual Key Conguration Parameters for LAN Emulation, Lec

Overview of LAN Emulation

1.At the LECS, use ATM addresses to assign clients to the LES. See ªOverview of the LECS Functionº on page 260 for more information.

2.Activate the LECS Interface on the router.

3.Activate the security option of the LESs.

4.Activate LECS Access Controls for any ATM address pre®xes that should not be allowed to access the LECS.

5.Use Address Screening at the ATM switches. This option causes switches to validate that calling stations use their actual ATM addresses in the call setup. Thus, stations cannot impersonate other stations.

These steps ensure that stations are correctly identi®ed and that only authorized stations join the ELAN.

Key Con®guration Parameters for LAN Emulation

This section brie¯y describes the required con®guration parameters of the router LAN emulation components. The ATM interface for the LAN emulation components must be de®ned before the components can be created.

1.LEC:

To create an LE client, you only need to specify the ELAN type. If you de®ne two LE clients on a single ATM interface and bridge them together, then one of the LE clients must use a non-default MAC address. By default, LE clients use the burned-in MAC address of the ATM interface. The default maximum frame size is 1516 bytes for Ethernet LE clients and 4544 bytes for token-ring LE clients.

272MRS V3.2 Software User's Guide