Setup guide

C H A P T E R

4-1

Cisco 6400 Software Setup Guide

OL-1183-04

Node Line Card Interface Configuration

The plug-and-play mechanisms of the Cisco 6400 allow it to come up automatically. All configuration

information for node line cards (NLCs) can be saved between hot swaps and switch reboots, while

interface types are automatically discovered by the switch, eliminating mandatory manual configuration.

This chapter describes how to manually configure ATM interfaces for the Cisco 6400 NLC, as opposed

to using Interim Local Management Interface (ILMI) autoconfiguration (which senses the peer interface

type and appropriately configures the system interfaces).

The network configuration modifications described in this chapter are used to explicitly specify your

ATM network operation. Although the Cisco 6400 defaults to a working configuration suitable for most

networks, you might need to customize the configuration for your network.

This chapter contains the following sections:

• NLC Interface Identification, page 4-1

• Autoconfiguration, page 4-2

• ATM Interface Types, page 4-3

• NLC Interface Clocking, page 4-8

• OC-3 NLC and OC-12 NLC Interface Options, page 4-8

• DS3 NLC Interface Options, page 4-10

• Troubleshooting the NLC Interface Configuration, page 4-11

NLC Interface Identification

In the Cisco 6400, NLC interface addresses specify the physical location of each port on the system. The

address is composed of a three-part number in the format slot/subslot/port:

• Slot—Identifies the chassis slot in which the card is installed. Card slots are numbered 1 to 8 from

left to right when facing the front of the chassis.

• Subslot—Identifies the top or bottom half of a card slot. Sublots are numbered 0 to1 from top to

bottom. Full-height NLCs are always identified with subslot0.

• Port—Identifies the physical port number on the card. Port numbers always begin at 0 and are

numbered from top to bottom.

Interfaces maintain the same address, even while other cards are installed in or removed from the

chassis. If, however, you move an NLC to a different slot or subslot, the address changes to reflect the

new slot and subslot.