3Com 3031 Command Reference Manual page 383

x25 switch pvc Syntax
x25 switch pvc pvc-number1 interface serial number pvc pvc-number2 [ option ]
undo x25 switch pvc pvc-number1
View
Interface view
Parameter
pvc-number1: PVC number on the input interface, and its value ranges from 1 to
4095.
pvc-number2: PVC number on the output interface, and its value ranges from 1 to
4095.
number: Number of the input interface.
option: Attribute of PVC.
Description
Using the x25 switch pvc (packet switching) command, you can configure one
PVC route. Using the undo x25 switch pvc command, you can delete one PVC
route.
By default, no PVC route is defined.
Based on the X.25 switching configuration, you can use the 3Com series Routers
as a simple X.25 switch. When PVC switching is configured, the link layer
protocols on the input and output interfaces must be X.25. Moreover, the
specified PVCs on the two interfaces have been presented and enabled. Note that
PVC switching cannot be configured on the X.25 sub-interface.
Detailed explanations of PVC options are follows:
broadcast: Forwards broadcast packet to the peer PVC.
encapsulation-type: Encapsulation type, which may be nonstandard, ietf,
multi-protocol and snap.
packet-size input-packet output-packet: Specifies the maximum receiving
packet length and maximum sending packet length. The length is counted in
byte, which must range from 16 to 4096 (including 16 and 4096), and must be
the integer power of 2.
window-size input-window-size output-window-size: Specifies the input
window and output window sizes of the VC, which range between 1 and the
number that is 1 less that the modulus of the X.25 interface where the address
mapping exists (including 1 and modulus minus 1).
For the related commands, see display x25 vc and x25 switching.
LAPB and X.25 Configuration Commands 383