Specifications

CHAPTER

4-1

Cisco IGX 8400 Series Provisioning Guide, Release 9.3.3 and Later Releases

OL-1166-04

Cisco IGX 8400 Series Trunks

This chapter provides information on configuring and managing trunks which have at least one endpoint

on an IGX node. If the trunk has an endpoint on a different type of node, such as a BPX, refer to the

appropriate product documentation for specific information on configuring trunks on those nodes (see

the “Related Documentation” section on page viii).

For information about trunks on the BPX, see the “Configuring Trunks and Adding Interface Shelves”

chapter in the Cisco BPX 8600 Installation and Configuration manual.

Functional Overview

Trunks are internode communication links used to connect two nodes in a network. A trunk can connect

any combination of IGX and BPX nodes.

The IGX supports trunks using the following service modules: the NTM, the UXM, and the UXM-E (see

Table 4-1).

For information about the hardware configuration required to set up a specific type of trunk, see

Table 4-2. For more information on the cards listed in Table 4-2, see the “Service Modules” section on

page 2-14.

Table 4-1 Trunks Supported on the IGX

Endpoint Endpoint Trunk Type Technology

IGX NTM IGX NTM T1, E1, Y1, subrate FastPacket

IGX UXM, UXM-E IGX UXM, UXM-E T1, E1, T3, E3, OC3 ATM

IGX UXM, UXM-E BPX BXM T1, E1, E3, OC3 ATM

Table 4-2 Trunk Types Supported on the IGX

Front Card Back Card Trunk Type Technology

NTM BC-T1 T1, fractional T1 FastPacket

NTM BC-E1 E1, fractional E1 FastPacket

NTM BC-Y1 Y1, fractional Y1 FastPacket

NTM BC-SR Subrate FastPacket