Справочник Пользователя для Avaya M770

Chapter 6

Managing Virtual Ports

72

Avaya M770 ATM Switch User’s Guide

On a root virtual port (which may have several VPIs associated with it) there is an 
option of signalling virtual paths connections. Therefore, the user should identify 
the range of VPIs that are associated with Signaled Virtual Paths (SVPs) and the rest 
are associated with Permanent Virtual Paths (PVPs).

Before setting up PVPs, or preparing the virtual port for SVPs, the module 

hardware has to be configured to accept Virtual Paths connection. This is done 
using the command “hardware vpcvpirnage” in which the user identifies the range 
of VPIs that are associated with VP switching. For more information refer to 
“Managing VPI range for VP switching” on page 99.

You must disable the virtual port before you can change or reset any virtual 

port parameters. For more information about how to disable a virtual port, see 
“Disabling a virtual port” on page 65.

To set the signalling VPC VPI range used for SVPs on a root virtual port use the 

vport set sigvpcvpirange

 command:

In this example, if the hardware was configured to have 4 bits for VPIs and 11 bits 
for VCIs (“Managing the number of VPI and VCI bits” on page 98). And the VPIs for 
VP switching was configured to be in the range of [6..15] (refer to “Managing VPI 
range for VP switching” on page 99). Then the range of VPIs that is left for PVPs is 
[7..15].

Command:

M15-155s8:/> vp set sigvpcvpirange <root vport id> <range>

Example:

Defining one vpi (6) to be used for SVPs on this virtual port (2.15.0):

M15-155s8:/>vp set sigvpcvpirange 2.15.0   [6..6]

Parameters:

<root vport 

id> 

Virtual port identifier in the form <slot>.<port>.0

<range>

in the form: [<lower bound>..<upper bound>] <lower bound> 
must be the minimum VPI number for VP switching as defined 
by “hardware vpcvpirange”