Configure network interfaces Configure ISDN interfaces
Digi TransPort WR Routers User Guide 246
TEI
Each ISDN terminal device connected to your ISDN basic rate outlet must be assigned a unique
Terminal Endpoint Identifier (TEI). In most cases, this is negotiated automatically. In some cases
however, it may be necessary to assign a fixed TEI.
When TEI is set to 255, the TEI is negotiated with the ISDN network. To use a fixed TEI set the TEI
parameter to the appropriate value as specified by your service provider.
D-channel X.25 Tx Window Size
The transmit window size when using D-channel X.25. The default is 7.
Tx Throughput
Used in conjunction with the Rx Throughput parameter to limit the maximum data throughput
on a LAPD link in bits per second.
If this parameter is set to 0, the router will transmit data across the LADP link as fast as possible
whilst observing hardware or software flow control if enabled.
When set to a value greater than 0, the router will limit the rate at which data is transmitted over
the LAPD link.
Note If multiple PAD or IP instances are sharing this LAPD instance, the maximum transmission
rates of all instances will be limited.
Rx Throughput
Used in conjunction with the Tx Throughput parameter to limit the maximum data throughput
on a LAPD link in bits per second.
If this parameter is set to 0, the router will transmit data across the LADP link as fast as possible
whilst observing hardware or software flow control if enabled.
When set to a value greater than 0, the router will limit the rate at which data can be received
over the LAPD link when it detects that receive throughput exceeds the specified rate.
Note If multiple PAD or IP instances are sharing this LAPD instance, the maximum transmission
rates of all instances will be limited.
Reactivate D-channel connection
When enabled, the router tries to reactivate a D-channel connection after disconnection by the
network by transmitting SABME frames. If it is unable to reactivate the connection after retrying
the number of times specified by the N400 counter, it will wait for 1 minute before repeating the
retry sequence.
Enabling this parameter also deactivates the Reactivate after n secs parameter.
If this parameter is disabled, the router will not attempt to reactivate a D-channel link following
deactivation by the network.
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