Avaya Configuring IP Services Manual do Utilizador descarregar pdf (Página 393)

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Chapter 11

Connecting the Router to a Blacker Front End

The Blacker front end (BFE) is a classified encryption device used by hosts that

want to communicate across unsecured wide area networks. BFE devices are

typically found in government networks (for example, DSNET), which handle

sensitive data requiring a greater degree of security.

Blacker front-end support allows the router to connect to BFE devices. The BFE

device, in turn, provides the router with encryption services while acting as the

data communications equipment (DCE) end of the connection between the router

and the X.25 network (Figure 11-1

Hosts using attached BFE devices can communicate with each other over an

unsecured packet-switched network using data paths secured by the encryption

services of the BFEs. These hosts are part of a red virtual network. The

packet-switched network that carries both the data secured by BFEs and any other

unsecured data is known as the black network.

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