Digi TransPort WR11 User Manual page 668

Configuring legacy protocols
LAPB 0 Default Packet Size: 128 256 512 1024
The default packet size for calls being switched onto LAPB 0. The default packet size is 128.
Other possible values are 256, 512, or 1024 bytes.
LAPB 0 Default Window Size: 2 1 3 4 5 6 7
The default window size for calls being switched onto LAPB 0. The default window size is 2.
The valid range is 1 to 7.
LAPB 1 Default Packet Size: 128 256 512 1024
The default packet size for calls being switched onto LAPB 1. The default packet size is 128.
Other possible values are 256, 512, or 1024 bytes.
LAPB 1 Default Window Size: 2 1 3 4 5 6 7
The default window size for calls being switched onto LAPB 1. The default window size is 2. The
valid range is 1 to 7.
LAPB 2 Default Packet Size: 128 256 512 1024
The default packet size for calls being switched onto LAPB 2. The default packet size is 128.
Other possible values are 256, 512, or 1024 bytes.
LAPB 2 Default Window Size: 2 1 3 4 5 6 7
The default window size for calls being switched onto LAPB 2. The default window size is 2. The
valid range is 1 to 7.
5. Configure IP Stream / XOT parameters:
IP Stream or XOT Remote IP Address:
For calls being switched in the direction of XOT, this parameter specifies the destination IP
address for the outgoing XOT call. The router also uses this value as the destination IP address
in the IP/UDP stream modes.
IP Stream or XOT Backup IP Address
If the Switch from XOT to parameter is set to XOT, this is the IP address the XOT call will be
switched to, if the original XOT IP address is unavailable.
IP Stream Port
The IP port number to use when IP stream or UDP stream are selected as the parameter for
any of the Switch from or Backup from parameters.
Note The XOT remote IP address and IP stream port parameters are overridden by the values
in the NUA/NUI to IP addresses table if the call matches any entry in that table.
IP Length Header: Off On 8583 Ascii 4 byte On (inclusive)
When IP length header is On, a length indicator field is inserted at the start of each packet.
When set to 8583 Ascii 4 byte, the IP length header conforms to the ISO 8583 format.
Source IP address interface: Auto Ethernet PPP
The default value for this parameter is Auto, which means that the source IP address of an
outgoing XOT connection on an un-NATed W-WAN link is the address of the PPP interface
assigned to W-WAN. This is because the XOT connection is initiated (automatically) within the
Digi TransPort® Routers User Guide
Configure Protocol Switch software
668