Verilink 9000 Series (34-00271) Product Manual Manual de usuario Pagina 261

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X.25 Channel List
239
Option D -Address pooling
The pooling option allows multiple connections from devices using the same
address or X.25 subaddress. In the first scenario, the MultiPro unit receives call
requests with the same subaddress. Normally, the MultiPro unit accepts the first
call and then refuses subsequent calls that carried the same X.25 sub-address. If
the pooling option is turned on, however, the MultiPro unit searches through the
channel list to find another entry with the same subaddress. If it finds a matching
entry that has no connection, it accepts the call.
DOWNLOAD CONFIG
MODE BACKUP NET ALARM POWER
PRISM 9111
TRANSPORT
®
DOWNLOAD CONFIG
MODE BACKUP NET ALARM POWER
PRISM 9111
TRANSPORT
®
Processor
Call Req. sub-addr = 001
Call Req. sub-addr = 001
DOWNLOAD CONFIG
MODE BACKUP NET ALARM POWER
PRISM 9111
TRANSPORT
®
X.25
Terminal 01
Default host = HOSTA
Terminal 02
Default host = HOSTA
Unit 003
Unit 001 Unit 002
HOSTA with addr. 01 & 02
1st call request from terminal 01
sub-addr = 001
2nd call request from terminal 02
sub-addr = 001
Connect req. to HOSTA
for addr. 01
Connect req. to HOSTA
for addr. 02
Unit 003
Channel List
Addr
Sub-addr
01
02
03
01
001
002
003
001
NOTE: The address in the channel list is overlayed with the terminal address from the user data field.
Figure 13-16
Typical Application with the Address Pooling Option - Scenario
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