User`s guide

3-3
Configuring ATM Connections
Settings
The Settings group box contains information about each of the currently
conÞgured PVCs, as well as the Þelds used to conÞgure new connections.
I/F The device interface index on which the PVC was conÞgured. An
ATM SSIM installed in the left hand slot will have an I/F value of
21; an ATM SSIM installed in the right hand slot will have an I/F
value of 25.
VPI The Virtual Path IdentiÞer assigned to the connection. Allowable
values are 0 - 3. VPIs are used to group virtual connections,
allowing for channel trunking between ATM switches. Each VPI
can be conÞgured to carry many different channels (designated
by Virtual Channel IdentiÞers) between two points.
VCI The Virtual Channel IdentiÞer assigned to the connection.
Allowable values are 0 - 1023 for each VPI. Each assigned VCI
must be unique within its deÞned VPI. However, you can assign
the same VCI to multiple VPIs (e.g., VPI 0/VCI 14, VPI 1/VCI 14,
VPI 2/VCI 14, etc.). Remember, it is the combined VPI and VCI
designations assigned to a channel that create the grouping of
virtual connections.
Encapsulation The method used to encapsulate LAN packets on the selected
Type circuit. Current versions of ATM SSIM Þrmware use VC MUX
802.5 LANE as the encapsulation method.
Status The current administrative status of the connection: Enabled or
Disabled.
UpTime The length of time the selected connection has been enabled.
Configuring Permanent Virtual Circuits
You can use the Add, Delete, or Refresh command buttons at the bottom of the
Current ATM Connections window to add or delete a Permanent Virtual Circuit
(PVC), or refresh the window.
¥ Add Ñ adds a new connection or modiÞes an existing connection, using the
parameters entered in the Þelds below the Settings list box. A conÞrmation
window will appear for additions and modiÞcations.
¥ Delete Ñ deletes the selected connection; a conÞrmation window requires that
you conÞrm the deletion.
¥ Refresh Ñ refreshes the connection information displayed in the window.