Cisco Systems OL-7396-01 Configuring ATM Network Interfaces

CHAPTER
6-1
ATM Switch Router Software Configuration Guide
OL-7396-01
6
Configuring ATM Network Interfaces
This chapter describes how to explicitly configure ATM network interface types. Explicitly configuring
interfaces is the alternative to Integrated Local Management Interface (ILMI) autoconfiguration, which
senses the peer interface type and appropriately configures the interface on the ATM switch router.
Note This chapter provides advanced configuration instructions for the Catalyst8540 MSR,
Catalyst 8510 MSR, and LightStream 1010 ATM switch routers. For a discussion and examples of ATM
network interface types, refer to the Guide to ATM Technology. Forcomplete descriptions of the
commands mentioned in this chapter, refer to the ATMSwitch Router Command Reference publication.
The network configuration tasks described in this chapter are used to explicitly change your ATM switch
router operation from the defaults, which are suitable for most networks. The following sections are
included:
•Disabling Autoconfiguration, page 6-1
•Configuring UNI Interfaces, page 6-3
•Configuring NNI Interfaces, page 6-4
•Configuring IISP Interfaces, page 6-7
Disabling Autoconfiguration
Autoconfiguration determines an interface type when the interface initially comes up. To change the
configuration of the interface type (such as UNI, NNI, or IISP), side, or version, you must first disable
autoconfiguration.
Note When you change the interface type, side, or version, ATM signalling and ILMI are restarted on the
interface. When ATM signalling is restarted, all switched virtual connections (SVCs) across the interface
are cleared; permanent virtual connections are not affected.