HP X.25/9000 User's Guide HP-UX 11i v3 (5900-1523, August 2011)

Figure 7 Modify X.25 flow control defaults
4. Select either Modulo-8 or Modulo-128 to set level 3 Modulo parameters. The default is
Modulo-8.
The valid window-size values for Modulo-8 range from 1 to 7. For Modulo-128, the valid
window-size values range from 1 to 127.
NOTE: Flow Control Negotiation must be enabled on the “Verify Level 3 Values” dialog to
allow the use of the negotiated flow control fields. If you do not enable Flow Control
Negotiation, the Default Packet Size and Default Window Size values will be used.
Enter or modify field values as required (refer to the field descriptions below).
Table 7 Switched VC flow control field descriptions
DescriptionField
Maximum packet size to be used over an SVC. The range is 16 through 4096 octets.
The default is 128 for inbound and outbound packets. Use the value given on your
subscription form.
Default Packet Size:
Inbound & Outbound
Maximum number of default packets that can be transmitted without acknowledgment
over an SVC. The range is 1 through 7 for Modulo-8, and 1 through 127 for
Default Window Size:
Inbound & Outbound
Modulo-128. (We recommend a value greater than 7 for Modulo-128). The default
is 2 for inbound and outbound transmission. Use the value given on your subscription
form.
Maximum packet size to be used over an SVC. The range is 16 through 4096 octets.
The default is 128 for inbound and outbound packets.
Negotiated Packet Size:
Inbound & Outbound
Maximum number of default packets that can be transmitted without acknowledgment
over an SVC. The range is 1 through 7 for Modulo-8, and 1 through 127 for
Negotiated Window Size:
Inbound & Outbound
Modulo-128. (We recommend a value greater than 7 for Modulo-128). The default
is 2 for inbound and outbound transmission.
20 Configuration