Passport Module User Guide

Chapter 4 Managing the Passport 8672ATM Module with Device Manager 61
Using the Passport 8672ATM Module
Editing circuit parameters
To view and configure ATM PVC parameters:
1 On the device view, highlight a port.
2 Choose Edit > Port.
The Port dialog box opens with the Interface tab displayed (Figure 12 on
page 52).
3 Click the ATM PVC tab.
The ATM PVC tab opens (Figure 17).
ScrambleEnable Sets the port to scramble the data by clicking the box.
FramingMode Sets the framing for the port to:
• sonet, which means the Synchronous Optical Network format, the
standard format in North America.
• sdh, which means the Synchronous Digital Hierarchy clock format,
the standard format in Europe.
ClockSource Sets the clock source for the port to:
• loopTimed, which means clocking is derived from the SONET line.
• freeRunning, which means clocking is derived from the on-board
clock.
Note: If you have two connected Passport 8672ATM Modules, you
must set both to freeRunning or one to freeRunning and one to
loopTimed; do not set both to loopTimed.
LoopBackMode Sets the loopback mode to:
• off
• internal
• external
MacAddress MAC address assigned to a particular interface.
Table 9 ATM tab items (continued)
Item Description