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14-3
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 14 Configuring LAN Emulation
LANE Configuration Tasks
To configure LANE, complete the tasks in the following sections:
• Creating a LANE Plan and Worksheet, page 14-3
• Displaying LANE Default Addresses, page 14-6
• Entering the ATM Address of the Configuration Server, page 14-7
• Setting Up the Configuration Server Database, page 14-7
Note For fault tolerance, multiple LANE services and servers can be assigned to the emulated LAN. This
requires the use of our ATM switch routers and our ATM edge devices end-to-end.
• Enabling the Configuration Server, page 14-10
An ATM cloud can contain multiple configuration servers.
• Setting Up LESs and Clients, page 14-11
Every ELAN must have at least a LAN emulation server/broadcast-and unknown server (LES/BUS)
pair, the maximum is 10. Every LANE cloud (one or multiple ELANs) must have at least one LAN
emulation configuration server (LECS).
You can configure some emulated LANs with unrestricted membership and some emulated LANs with
restricted membership. You can also configure a default emulated LAN, which must have unrestricted
membership.
After LANE is configured, you can monitor and maintain the components, as described in the
Monitoring and Maintaining the LANE Components, page 14-16.
Creating a LANE Plan and Worksheet
Draw up a plan and a worksheet for your LANE scenario, containing the following information and
leaving spaces for the ATM address of each LANE component on each subinterface of each participating
router or switch router:
• The component and interface where the LECS will be located.
• The component, interface, and subinterface where the LES and BUS for each emulated LAN will be
located. Each emulated LAN has multiple servers for fault-tolerant operation.
• The component, interfaces, and subinterfaces where the clients for each emulated LAN will be
located.
• The component and database name of the default database.
• The name of the default emulated LAN (optional).
• The names of the emulated LANs that have unrestricted membership.
• The names of the emulated LANs that have restricted membership.
The last three items in this list are very important; they determine how you set up each emulated LAN
in the configuration server database.
Automatic ATM Addressing and Address Templates for LANE Components
The ATM switch router automatically assigns ATM addresses to LANE components using the scheme
described in the Guide to ATM Technology. You can also override the automatic address assignments
using an ATM address template.