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AIXLink/X.25 1.1 for AIX: Guide and Reference

mkpvc Command

Purpose

Creates or modifies a non-default permanent virtual circuit (PVC) on an X.25 port.

Syntax

General Use:

mkpvc  [  -U  ]  -l  Name  -n  Number  [  -r  RxWindow  ]  [  -s  RxSize  ] [  -t  TxWindow  ]  [  -u  TxSize  ]  [  -d  Dbit  ]

To Display the Command Usage:

Description

The mkpvc command creates or modifies a non-default PVC for the virtual circuit number on the port specified. Not all of the PVC attribute values need to be used. If an attribute value is not entered by the user, the command will use the default PVC value found in the ODM for this port.

If the non-default PVC already exists, its values can be updated by issuing the -U flag along with the new attribute values.

Flags

-l Name Specifies the defined port name as found in the ODM customized devices object class.
-n Number Specifies the non-default PVC virtual circuit number.
-r RxWindow Specifies the receive window size for the non-default PVC. The window size can range from 1-127.
-sRxSize Specifies the receive packet size for the non-default PVC. The packet size can range from 16-4096 for powers of 2.
-t TxWindow Specifies the transmit window size for the non-default PVC. The window size can range from 1-127.
-uTxSize Specifies the transmit packet size for the non-default PVC. The packet size can range from 16-4096 for powers of 2.
-d Dbit Specifies how the packet layer will handle the D bit. A value of 0 indicates the packet layer will reject the D bit, and a value of 1 indicates the packet layer will allow the use of the D bit.
-U This flag allows the user to update the attribute values for a non-default PVC.
-h Displays the command usage message.

Examples

  1. To create a non-default PVC for virtual circuit 2, on port sx25a0, with receive and transmit window sizes of 7, and the D bit enabled, enter: 
    mkpvc -l sx25a0 -n 2 -r 7 -t 7 -d 1
  2. To change the receive window and packet sizes for the non-default PVC defined on virtual circuit 2 of port sx25a0, enter: 
    mkpvc -l sx25a0 -n 2 -r 127 -s 2048 -U

Related Information

The chdev command, chsx25 command, lsdev command, lspvc command, mkdev command, mksx25 command, rmdev command, and rmsx25 command.

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