Filter
Top Products
Chapter 5 Managing Physical Ports
42 Avaya M770 ATM Switch User’s Guide
VPI Range The VPI range assigned to a physical port.
VPC VPI
Range
The VPC VPI range used for VPCs (Virtual Path Connections).
VCI Range The VCI range assigned to a physical port.
Cell Mode The empty cell generation mode for a physical port. This can be
either Idle or Unassigned. The default setting is Unassigned.
Payload
Scrambling
The payload scrambling mode for a physical port. This can be
enabled or disabled. The default setting is set to On.
Media Type The media type for a physical port.
MMF (Multi-Mode Fiber) cable.
SMF (Single-Mode Fiber) cable.
UTP (Unshielded Twisted Pair) cable.
Coaxial (BNC) cable.
Media Mode The Media Mode shows the status of the physical port, which is
normally UP.
Last Change The Last Change shows the time when the port entered it’s
current state. The time format dd:hh:mm:ss:ds
Cell
Mapping
(DS3 only)
The Cell Mapping shows the mapping mode used for the
transport of ATM cells over DS3. The Mapping mode is either
ADM (ATM Direct Mapping) or PLCP (Physical Layer
Convergence Protocol). The default setting is ADM.
Line Code
(DS3 only)
The supported Line Code is always B8ZS.
Cable
Length
(DS3 only)
The BNC coaxial cable length can be either 0-225 feet or
225-450 feet. The default setting is 225-450 feet.
Tx Clock
(DS3 only)
The transmit clock source is either local (derives the clock
internally), or loop (derives the clock from the received signal).
The default setting is local.
Loopback
(DS3 only)
Loopback is either line loopback (the receiver loops back the
received line signal), or payload loopback (the receiver loops
back the received payload), or none. The default setting is none.
Table 5.1 Output from the pport show command
Field Description