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4-3
Section
CIO Area Allocations
55
When a socket service request is executed by control switch manipulation, it is
the following bits that are manipulated. For details, refer to 6-2 Using Socket Ser-
vices with Socket Service Request Switches.
UDP Open Request Switch
TCP Passive Open Request Switch
TCP Active Open Request Switch
Send Request Switch
Receive Request Switch
Close Request Switch
7
6
5
4
3
2
1
0
n+19 to n+22
15
14
13
12
11
10
9
8
Bit
Switch
Status
Manipulated
by
Unit operation
Page
8
0
UDP Open
ON
User
UDP socket opened when switch is turned ON.
98 to
Request Switch
OFF
Unit
Unit turns OFF switch when open processing has
been completed (i.e., when a connection has been
made).
103
9
1
TCP Passive Open
Request Switch
ON
User
Passive TCP socket opened when switch is turned
ON.
OFF
Unit
Unit turns OFF switch when open processing has
been completed (i.e., when a connection has been
made).
10
2
TCP Active Open
ON
User
Active TCP socket opened when switch is turned ON.
Request Switch
OFF
Unit
Unit turns OFF switch when open processing has
been completed (i.e., when a connection has been
made)
11
3
Send Request
Switch
ON
User
Send processing executed when switch is turned ON.
(The protocol (TCP/UDP) is determined when the
socket is opened.)
OFF
Unit
Unit turns OFF switch when send processing has
been completed.
12
4
Receive Request
Switch
ON
User
Receive processing executed when switch is turned
ON.
(The protocol (TCP/UDP) is determined when the
socket is opened.)
OFF
Unit
Unit turns OFF switch when receive processing has
been completed.
13
5
Close Request
Switch
ON
User
Close processing executed when switch is turned
ON.
(The protocol (TCP/UDP) is determined when the
socket is opened.)
OFF
Unit
Unit turns OFF switch when close processing has
been completed.
14
6
(Not used.)
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15
7
(Not used.)
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Socket Service Request
Switches 1 to 8 (CPU Unit
to Ethernet Unit)