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CHAPTER
10-1
ATM Switch Router Software Configuration Guide
OL-7396-01
10
Configuring ILMI
This chapter describes the Integrated Local Management Interface (ILMI) protocol implementation
within the ATM switch router.
Note This chapter provides advanced configuration instructions for the Catalyst 8540 MSR,
Catalyst 8510 MSR, and LightStream 1010 ATM switch routers. For a description of the role of ILMI,
refer to the Guide to ATM Technology. For complete descriptions of the commands mentioned in this
chapter, refer to the ATM Switch Router Command Reference publication.
This chapter includes the following sections:
• Configuring the Global ILMI System, page 10-1
• Configuring an ILMI Interface, page 10-5
Configuring the Global ILMI System
This section describes configuring the ATM address and the LAN emulation configuration server
(LECS) address, and displaying the ILMI configuration for the entire switch.
Configuring the ATM Address
The ATM switch router ships with an autoconfigured ATM address. Private Network-Network Interface
(PNNI) uses the autoconfigured address to construct a flat PNNI topology. ILMI uses the first 13 bytes
of this address as the switch prefix that it registers with end systems. For a description of the
autoconfigured ATM address and considerations when assigning a new address, refer to the Guide to
ATM Technology.
Note The most important rule in the addressing scheme is to maintain the uniqueness of the address across
very large networks.
Multiple addresses can be configured for a single switch, and this configuration can be used during ATM
address migration. ILMI registers end systems with multiple prefixes during this period until an old
address is removed. PNNI automatically summarizes all of the switch’s prefixes in its reachable address
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