Cabletron Systems 7000 manual Configuring Connections, Adding a New Connection

ATM Configuration

Status	Displays the current administrative status of the
	connection: enabled or disabled. In current versions of
	Þrmware, all connections are enabled by default, and
	cannot be disabled.
UpTime	The length of time the selected connection has been
	enabled.

Selecting the Add button either adds a new connection or modiÞes an existing one, using the parameters entered in the Þelds below the list box. A conÞrmation window will appear for both additions and modiÞcations.

Selecting the Delete button deletes the selected connection; a conÞrmation window requires that you conÞrm the deletion.

Selecting Refresh refreshes the connection information displayed in the window.

Configuring Connections

Adding a New Connection

To conÞgure new Permanent Virtual Circuits (PVCs), enter the following information in the text Þelds which appear just below the connections 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; note that interfaces installed in a 7C0x chassis are indexed following an XXXXYY format, where X = the slot number in which the module containing the interface is installed, times 10,000, and Y = the physical index assigned to the port interface on the module. For example, an index of 40001 would refer to port 1 on the module installed in slot 4 of the chassis.

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.

6-4 Configuring Connections