Device Online Help # Go back one pageGo to the next page#Go to this book's Index

SONET parameters

To change the default parameters, you configure the values for the Synchronous Optical Network (SONET) media in the POS SONET tab. These values must be configured before configuring POS PPP, VLAN, or any other parameters.

To change the configuration of the SONET parameters:

  1. Highlight the port.
  2. Choose Edit > Port.
    3. The Port dialog box opens with the Interface tab displayed.
  3. Disable the port.
  4. In the Interface tab, click the POS SONET tab.
    5. The POS SONET tab opens.
    The table below describes the items in the POS SONET tab.


Item Description
SonetFraming
Sets the framing for the port to:
  • SONET--Synchronous Optical Network format; standard format used in North America (default)
  • SDH--Synchronous Digital Hierarchy clock format; standard format used in Europe.
SonetOperStatusFraming
Operational value of SONET framing.
SonetSectionTrace
Sets the integer that the section trace flag (j0) is set to, that is an integer between 1 and 255.
SonetOperStatusSectionTrace
Operational value of SonetSectionTrace.
SonetOperStatusPathSignalLabel
Operational value of Path Signal Label.
SonetClockSource
Sets the Clock Source to either line or internal.
SonetOperStatusClockSource
Operational value of ClockSource.
SonetScramble
Parameter that enables or disables the scrambling option.
SonetOperStatusScramble
Operational value of SonetScramble.
SonetMedium

MediumType
Identifies whether a SONET or a SDH signal is used across this interface.
MediumTimeElapsed
Number of seconds, including partial seconds, that have elapsed since the beginning of the current measurement period. If, for some reason, such as an adjustment in the system's time-of-day clock, the current interval exceeds the maximum value, the agent will return the maximum value.
MediumValidIntervals
Number of previous 15-minute intervals for which data was collected.
MediumLineCoding
Line coding for this interface. The Non-Return to Zero (NRZ) line coding is used for optical SONET/SDH signals.
MediumLineType
Line type for this interface. The line types are single mode fiber or multimode fiber interfaces.
MediumCircuitIdentifier
Transmission vendor's circuit identifier, for the purpose of facilitating troubleshooting. Note that the circuit identifier, if available, is also represented by ifPhysAddress.

  1. Select the SonetClockSource, either line or internal.
    2. If two Passport POS Modules are operating directly (that is, connected back to back, without any intervening Sonet equipment), one port must provide the clock source. Set the clock source of one port to internal, and the opposite port must be set to line.
  2. Select other SONET parameters.
  3. Click Apply.
  4. Renable the port.

See also
Go back one pageGo to the next page##Go to this book's Index