<s>
ERIPAX	B-Protocol
(	O
ERICSSON	O
Packet	B-Protocol
Switching	I-Protocol
Exchange	O
)	O
was	O
a	O
suite	O
of	O
packet	B-Protocol
switched	I-Protocol
network	I-Protocol
products	O
and	O
services	O
that	O
was	O
introduced	O
in	O
1983	O
by	O
Ericcson	O
.	O
</s>
<s>
It	O
worked	O
primarily	O
over	O
the	O
X.25	B-Protocol
standard	O
,	O
but	O
X.28	O
and	O
X.75	B-Protocol
protocols	O
were	O
also	O
used	O
.	O
</s>
<s>
It	O
also	O
supported	O
TCP/IP	B-Protocol
and	O
SNA	B-Architecture
network	O
sessions	O
,	O
and	O
eventually	O
also	O
worked	O
over	O
Frame	B-Protocol
Relay	I-Protocol
.	O
</s>
<s>
The	O
concentrators	O
were	O
Ericsson	O
,	O
but	O
IBM	O
equipment	O
was	O
frequently	O
part	O
of	O
an	O
ERIPAX	B-Protocol
solution	O
.	O
</s>
