Datatek DT-6061 Manuel de l'utilisateur - Page 9

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When the X.25 link is to be on an outgoing TCP session, the type would be set to orig. The IP

address would be specified by the dest parameter, and the TCP port at that IP address would be

specified by the dport parameter.

The numvcc parameter is the number of X.25 virtual circuits to be supported. The default is 16.

The win parameter specifies the LAPB window size to be used for transmission. The Window

size is always 8 frames for receive. The default transmission window size is 2 per the ITU

specification X.25.

The t1 parameter specifies the value of the T1 timer. The timer defaults to the recommendation of

the ITU specification X.25. It is provided as an option for non-standard configurations.

The n2 parameter specifies the value of the N2 retry counter. The value defaults to the

recommendation of the ITU specification X.25. It is provided as an option for non-standard

configurations.

2.3.6 V

IRTUAL

IRCUIT CONFIGURATION

Syntax: vc <vc#> [win=<#>] [svc=< pad|pass>] [type=<RCV|ORIG>]

[dest=<IP Address>] [dport=<TCP Port>]

The VC command is only visible when the application is logged in. The command is used to

configure a virtual circuit connection to a Virtual X.25 line.

The <VC#> parameter refers to the virtual circuit configured on the X.25 line. It has the range of 1

through the number of circuits configured.

When the X.25 virtual circuit is to be placed on an incoming TCP session, the type would be set

to rcv. The X.25 virtual circuit would reside at the TCP port specified by the base parameter

offset by its virtual circuit number.

When the X.25 virtual circuit is to be placed on an outgoing TCP session, the type would be set

to orig. The IP address would be specified by the dest parameter, and the TCP port at that IP

address would be specified by the dport parameter.

The win parameter refers to the packet layer window size to be used for transmission purposes.

It defaults to the value of 2 per the ITU Recommendation X.25.

The svc parameter allows the type of service to be performed on the virtual circuit. When the

value of PAD is selected, the virtual circuit is terminated in a X.3 PAD service. When the value of

PASS is selected, an X.25 pass-through service is selected.

2.3.7 C

PAD

ONFIGURING

PARAMETERS

Syntax: pad <vc #>[echo=<ON|OFF>] [fwd=< none|cr|all>] [idle=<#ticks>]

[inact=<# seconds>|OFF]

The PAD command is only visible when the application is logged in. The command is used to

configure the X.3 PAD parameters of a virtual circuit. These parameters have relevance only if

the service selected on the virtual circuit is PAD.

The <VC #> parameter refers to the virtual circuit configured on the X.25 line. It has the range of

one through the number of circuits configured.

The echo option refers to reference #2 in the X.3 parameter list. When set to OFF, the IP-PAD

will not echo characters back to the IP endpoint. When set to the value of ON, all characters are

to be echoed back to the IP source.

11/01/00

Datatek Applications Inc.