Cabletron Systems 2.2 Manual De Usuario

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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.