Specifications

CHAPTER
6-1
Cisco IGX 8400 Series Provisioning Guide, Release 9.3.3 and Later Releases
OL-1166-04
6
Cisco IGX 8400 Series Data Service
Data Service—Functional Overview
This chapter provides information on provisioning and managing data service on an IGX node. For
information on provisioning service on other node types, such as the BPX, see the appropriate product
documentation.
For information about the BPX, see Chapter 1, “The BPX Switch: Functional Overview,” in the
Cisco BPX 8600 Series Installation and Configuration guide.
On the IGX, the HDM and LDM cards are designed to support legacy data networks, while allowing data
to be transmitted over trunks along with voice, ATM, and FR traffic for optimal bandwidth utilization.
HDM and LDM cards can directly interface with customer data equipment, or connect to modems and
CSUs or DSUs.
Data Terminal Equipment and Data Circuit-Terminating Equipment
Data terminal equipment (DTE) serves as a user endpoint for data. A DTE passes data to
data circuit-terminating equipment (DCE) for transmission over the network circuit. DTE equipment
includes routers, PCs, mainframes, and printers.
Data Service Connections Supported on the IGX
The HDM, LDM, UVM, CVM, UFM, and FRM cards support data traffic. See Table 6-1 for more
information on the different types of data supported by each card.