Справочник Пользователя для Cabletron Systems 9A128-01

ATM Configuration

3-4

Configuring Connections

Selecting the Add button either adds a new connection or modifies an existing 
one, using the parameters entered in the fields below the list box. A confirmation 
window will appear for both additions and modifications.

Selecting the Delete button deletes the selected connection; a confirmation 
window requires that you confirm the deletion.

Selecting Refresh refreshes the connection information displayed in the window.

To configure new Permanent Virtual Circuits (PVCs), enter the following 
information in the text fields which appear just below the settings list box:

1.

In the I/F text box, click on the down-arrow to the right of the text field, and 
drag down to select the interface for which you wish to configure a connection. 
All available ATM interfaces will be listed in this menu: index 4 for the 
9A128-01.

2.

In the VPI text box, enter the Virtual Path Identifier you wish to assign to this 
connection. Allowable values are 0 to 3; remember, the VPI you assign will be 
used to group virtual connections, allowing for channel trunking between ATM 
switches.

3.

In the VCI text box, enter the Virtual Channel Identifier you wish to assign to 
this connection. Allowable values are 0 to 1023 for each VPI. For example, 
you could assign the same channel identifier — say, 25 — as many as four 
times: once with a VPI of 0, once with a VPI of 1, and so on. Again, remember 
that it is the combination of VPI and VCI that will be used to direct cells 
through the intermediate switches between the source and destination.