Verilink 9000 Series (34-00271) Product Manual - Manual (Page 251)

X.25 Layer 3 229
Clear Request
Timer
The value in this field is the time, in seconds, the unit waits after sending a clear
request before declaring a channel failure. The selections are 1 to 255, 20.
Registration
Request Timer
The value in this field is the time, in seconds, the unit waits after sending a
registration request before declaring a channel failure. The selections are 1 to 255.
Recovery
Counter
The recovery counter parameter indicates the maximum number of times a request
can be transmitted and not answered before a failure is declared. The selections are
1 to 255, 3.
Retry
Counter
The retry counter parameter indicates the maximum number of times a reset and
clear procedure is attempted before a failure is detected. The selections are 1 to
255, 3.
D-Bit
Support
The D-Bit is a delivery confirmation flag. When connecting through a network
(PDN), the D-bit requests a packet acknowledgment from the remote DTE instead
of the network. When set to Y, the TXPORT unit turns on the D-bit in the last data
packet of a message. This indicates to the TXPORT unit that the message has
actually been delivered. Not all PDNs support this feature. If it is supported,
TXPORT recommends using it. The selections are Y and N.
Reject Packet
Support
The Reject Packet Support parameter indicates whether the remote device
connected to the unit supports the reject packet command. The selections are Y
and N.
PVC
Modulo
The value in this field determines the numbering scheme for packets on permanent
virtual circuits (PVC). A value of 8 causes a numbering sequence of 0 to 7 while a
value of 128 causes a sequence of 0 to 127. The selections are 8 and 128.
PVC
Window
The window parameter specifies the maximum number of unacknowledged packets
possible for any individual permanent virtual circuit (PVC). The selections are 1 to
7 if the PVC Modulo is 8, 2 and 1 to 127 if the PVC Modulo is 128, 2.
Number
of PVC
The number of PVC represents the total number of permanent virtual circuits that
are needed on this port. The selections are 0 to 512.
VC
Modulo
The value in this field determines the numbering scheme for packets on virtual
circuits (VC). A value of 8 causes a numbering sequence of 0 to 7 while a value of
128 causes a sequence of 0 to 127. The selections are 8 and 128.
VC
Window
The window parameter specifies the maximum number of unacknowledged packets
possible for any individual virtual circuit (VC). The selections are 1 to 7, 2 if the
VC Modulo is 8 and 1 to 127, 2 if the VC Modulo is 128.
Number
of VC
The number of VC represents the total number of virtual circuits that are needed
on this port. The selections are 0 to 512.