Special Parameters

You can access the Special Parameters window from the Link Editor.

The parameter values are stored in the link configuration files /etc/opt/SUNWconn/x25/config/link_config_nnnn.cfg, where nnnn is the four-digit number that indicates the link number (for example, the file link_config_0004.cfg contains the parameters for link number 4).

Use these parameters to set values for D-bit options and throughput class. The throughput class parameters are only for those X.25 networks that do not use standard X.25 packet and window size negotiation.

D-bit Control

The following parameters are available:

Call Accept In (dbit_accept_in)

Determines Solstice X.25's response when it receives a Call Accept packet with the D-bit set and end-to-end acknowledgment was not requested. The options are:

• Leave D-bit set

• Clear call

• Zero D-bit

Call Accept Out (dbit_accept_out)

Determines Solstice X.25's response when it sends a Call Accept packet with the D-bit set and receives a packet from the remote side with the D-bit turned off. The options are:

• Leave D-bit set

• Clear call

• Zero D-bit

Data In (dbit_data_in)

Determines Solstice X.25's response when it receives a Data packet with the D-bit set. The options are:

• Leave D-bit set

• Reset call

• Zero D-bit

Data Out (dbit_data_out)

Determines Solstice X.25's response when an application tries to send a data packet with the D-bit set. The options are:

• Leave D-bit set

• Reset call

• Zero D-bit

Throughput Class Packet/Window Mapping

Throughput Class Type (thclass_type)

The values are:

• Normal Negotiation

• Use Low Nibble of Map

• Use High Nibble of Map

• Use Both Nibbles of Map

Throughput maps entry number

If you are connecting to a non-standard X.25 network and the map entry of 0 is not appropriate for your X.25 network, choose a value between 1 and 15.

Packet Map (thclass_pmap)

The range for valid packet sizes is 16 to 4096.

In the configuration file, packet sizes are expressed as powers of 2. For example, to specify 128, enter 7.

Window Map (thclass_wmap)

A number in the range from 1 to 127.

Identity (x25_x32_identity)

An X.32 identity of up to 32 hexadecimal characters. Do not use whitespace.