Panasonic 1200N manual Hardware Interface, UNI and NNI

6

Hardware Interface

This chapter describes the line interfaces that the ATM Switch supports.

UNI and NNI

As illustrated in Figure 6-1, there are two types of interfaces in an ATM network. One is the User Network Interface (UNI) that connects an end system (a router, for example) to an ATM switch. The other is the Network Node Interface (NNI) that connects two ATM switches. These interfaces are further classified into public network interface and private network interface, depending on the type of the network they are connected to.

The ATM Switch provides various line cards to accommodate these interfaces.

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Figure 6-1: ATM Network Interface

Centillion 1200N ATM Switch User Manual	6-1
NTP 297-8103-903