Avaya Configuring IP Services Manual de usuario Pagina 351

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Connecting the Router to a Blacker Front End
117356-A Rev. A 11-3
BFE Addressing
You can enable BFE support on individual IP interfaces. When you enable BFE
support, the router uses the BFE address-resolution algorithm to map IP addresses
to their corresponding X.121 addresses.
BFE IP-to-X.121 address translation differs from standard DDN address
translation. Each physical router-to-BFE connection is identified by a BFE X.121
network address and a BFE IP address. The format of a BFE X.121 address is
zzzzzpdddbbb
where:
All BFE hosts are members of Class A IP networks. The format of a BFE IP
address is as follows:
nnnnnnnn.Zpppdddd.ddddddbb.bbbbbbbb
where:
BFE supports only physical addressing. It does not support either logical
addresses or subaddresses.
zzzzz
is zero
p
is the BCD encoding of the port ID
add
is the BCD encoding of the domain ID
bbb
is the BCD encoding of the BFE ID
nnnnnnnn
identifies the network ID in bits
Z
is zero
ppp
is the port ID in bits
dddd.dddddd
is the domain ID in bits
bb.bbbbbbbb
is the BFE ID in bits
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