
Patent
Application
Publication
Jun.
8,
2006
Sheet
2
0f
5
FIRST
PROCESSING
UNIT
FIRST
RUNNING
AN
X.25
APPLICATION
HOST
22
A
I
32
X25
VIRTUAL
NETWORK
INTERFACE
CARD
I
ENCAPSULATING/
DECAPSULATING
UNIT
A
I
ALTERNATIVE
DATA
PACKET
NETWORK
INTERFACE
ALTERNATIVE
DATA
P
CKET
NETWORK
ALTERNATIVE
DATA
PACKET
NETWORK
INTERFACE
GATEWAY
36
40
X25
NETWORK
GATEWAY
54
58
X25
NETWORK
52
SECOND
HOST
56
.........
-
X.25
INTERFACE
I
60
SECOND
PROCESSING
UNIT
RUNNING
AN
X.25
APPLICATION
FIGURE
2
US
2006/0120402
A1
24
26
28
34
44
ALTERNATIVE
DATA
PACKET
NETWORK
INTERFACE
46
ENCAPSULATING/
DECAPSULATING
UNIT
48
A
x.25
VIRTUAL
NETWORK
INTERFACE
CARD
50
THIRD
PROCESSING
UNIT
RUNNING
AN
X.25
APPLICATION
HOST
42
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