Lucent Technologies Cajun M770 manual Viewing ATM Clock Synchronization Configuration

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Chapter 3 Device Configuration

Viewing ATM Clock Synchronization Configuration

Some multimedia applications, such as voice, require that a single clock is propagated throughout the network. The clock source is usually a Public Telco switch connected to a local PBX through a telephony network. Using the Cajun M770 ATM Device, up to four external references can be configured, two from ATM ports and two from external E1/T1 sources. These are all directed to the M-SPS module which selects one of them to be the source input timing device. It uses the selected source to generate a 19.44MHz clock which is distributed to all modules. This is used by all ATM ports to synchronize Sonet frames.

The ATM Clock Synchronization dialog box provides information about the method currently configured for synchronizing the clocks in the Cajun M770 Device.

To view and edit clock synchronization parameters from Chassis View:

1Click .

OR

Open the Configuration menu and select ATM Clock Sync. The ATM Clock Synchronization dialog box appears.

Figure 3.6 Clock Synchronization Dialog Box

The ATM Clock Synchronization dialog box shows the module type, status, and current source of clock synchronization. It also provides a table of clock synchronization parameters for all the clock sources, and allows you to edit their configurations.

To edit the configuration of a clock synchronization source:

1Select one of the sources from the table.

2Modify the parameters in the Row Configuration area of the dialog box.

3Click OK. The configuration of the clock source is modified.

16	Cajun M770 Manager User’s Guide

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Contents Cajun M770 Manager Page Contents Cajun M770 Manager User’s Guide Cajun M770 Manager User’s Guide Iii Cajun M770 Manager User’s Guide List of Figures Chassis View ToolbarList of Figures Cajun M770 Manager User’s Guide List of Tables Table A.4List of Tables Viii Cajun M770 Manager User’s Guide Welcome to Cajun M770 Management Purpose of this ManualWho Should Use This Manual Organization of this ManualStarting Cajun M770 Management If you are using OpenView Solaris or Hpux or NT-OV Using Chassis View Launching Module ManagersUsing the Toolbar Buttons Selecting ElementsUsing Configuration Windows Help ContentsAgent Configuration General Agent Installation and ConfigurationVerifying Agent Installation Downloading New Agent SoftwareDesignating Managers Viewing the Managers TableAdding Managers to the Managers Table Removing Managers from the Managers TableUpdating the Managers Table Device Configuration Viewing Device Information Device Information Dialog BoxViewing Hardware Configuration Hub Hardware WindowViewing Module Configuration Module Configuration Window Viewing Port Configuration Port Configuration Dialog BoxEnabling Ports Disabling PortsViewing Domain Resource Unit Information DRUs Information WindowViewing ATM Clock Synchronization Configuration Clock Synchronization Dialog BoxDevice Configuration Resetting Elements Resetting the DeviceResetting the Agent Resetting the SwitchFault Management Configuring TrapsViewing Traps Assigning Severity Degrees Unix and NT-OV OnlyEditing Severity Degrees Editing Severity Degrees System-WideFault Management Performance Monitoring Viewing Ethernet Port Counters Ethernet Port Counters WindowViewing Ethernet Port Error Counters Port Error Counters WindowPerformance Monitoring Cajun M770 Manager User’s Guide Port Mirroring Accessing Port Mirroring Port Mirroring Dialog BoxEnabling Port Mirroring Disabling Port MirroringChapter Port Mirroring Cajun M770 Manager User’s Guide Port Redundancy Viewing Port Redundancy InformationEditing a Port Redundancy Adding a Port RedundancyDeleting a Port Redundancy Switch Connected Addresses Switch Connected Addresses for Device WindowSorting the List of Stations Saving the List of StationsVLANs Creating and Editing VLANsAccessing the Vlan List Editing Vlan Names and NumbersEditing Vlan Member Ports Allowing Inter-VLAN Communication Configuration Cajun M770 Management MenusPerformance Help Cajun M770 Manager User’s Guide Configuration Fields 10 of The Reference GuideDisable, use Internal Clock Clock E1Framed E1Unframed36 of The Reference Guide FDX+ISL Algorithm STA on page 27 of The Reference Guide Cajun M400 Manager User’s Guide Algorithm STA on page 27 of The Reference Guide Disabled Time to Restore field Counter Fields Cajun M400 Manager User’s Guide Trap Fields Cajun M400 Manager User’s Guide Accessing IndexCajun M770 Manager User’s Guide Unix Cajun M770 Manager User’s Guide