ATM Configuration

5-4 Configuring Connections

Delete Deletes the selected connection; a
conÞrmation window requires that you
conÞrm the deletion.
Refresh Refreshes the connection information
displayed in the window.
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 menu, select the interface for which you wish to configure a
connection. All available ATM interfaces will be listed in this menu. Note that
depending on the type of your host device, you will have a fixed number of
interface selections:
EMM-E6: 5-20
ESXMIM: 7-22
ESX-1320/ESX-1380: 13-28
MicroMMAC: 2-14
NBR-420: 4-19
NBR-620: 6-21
2. In the VPI text box, enter the Virtual Path Identifier you wish to assign to this
connection. Currently, the only allowable value is 0; 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. 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.
4. In the Encapsulation Type menu, select the desired encapsulation type.
Current versions of ATM BRIM firmware use 802.3 VC-based multiplexing for
bridging protocols (designated VC MUX 802.3 Bridged); future versions will
add support for additional encapsulation methods.
NOTE
Currently, versions of CabletronÕs ATM device Þrmware restrict the range of VPI and
VCI values that you can set. VPI values for the BRIM-A6 and BRIM-A6DP are
restricted to a value of 0; VCI values are restricted to a range of 0-1023.
TIP
Selecting any of the other encapsulation types listed in the ÞeldÕs menu will cause a ÒSet
FailedÓ error when you attempt to add the new connection.