66 Cajun M770 ATM Manager User’s Guide
Upper Backplane The configuration of the upper backplane of the
Cajun M770 device, used for ATM switch modules.
Possible values are:
•
Not Installed
- No upper backplane is installed.
The device can not operate as an ATM switch.
•
Single_Domain
- The upper backplane
supports a configuration of one ATM switch for
all 14 slots.
•
Dual_Domain
- The upper backplane supports
a configuration of two separate ATM switches.
One switch includes slots 1 - 7, the other switch
includes slots 8 - 14.
VCI Virtual Circuit Identifier. A unique numerical tag as
defined by a 16 bit field in the ATM cell header that
identifies a virtual circuit, over which the cell has to
travel.
Virtual Port The virtual port number.
Virtual Port State The state of the root virtual port.
VPI Virtual Path Identifier. An eight bit field in the ATM
cell header which indicates the virtual path over
which the cell should be routed.
VPI Range Virtual Path Identifier Range. The valid range of the
eight bit field in the ATM cell header which
indicates the virtual path over which the cell
should be routed.
VPort The number of the virtual port.
Xmt Hellos The number of Hello packets transmitted by the
selected PNNI link.
Field Name Description
