3Com 4510G - Page 859

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Voice Test Configuration Example..............................................................................................22-34
DLSw Test Configuration Example .............................................................................................22-37
NQA Collaboration Configuration Example.................................................................................22-38
24 NTP Configuration.................................................................................................................................24-1
NTP Overview.......................................................................................................................................24-1
Applications of NTP.......................................................................................................................24-1
Advantages of NTP .......................................................................................................................24-1
How NTP Works............................................................................................................................24-2
NTP Message Format ...................................................................................................................24-3
Operation Modes of NTP...............................................................................................................24-4
Multiple Instances of NTP .............................................................................................................24-6
NTP Configuration Task List.................................................................................................................24-6
Configuring the Operation Modes of NTP.............................................................................................24-7
Configuring NTP Client/Server Mode............................................................................................24-7
Configuring the NTP Symmetric Peers Mode ...............................................................................24-8
Configuring NTP Broadcast Mode.................................................................................................24-9
Configuring NTP Multicast Mode...................................................................................................24-9
Configuring Optional Parameters of NTP ...........................................................................................24-10
Specifying the Source Interface for NTP Messages ...................................................................24-10
Disabling an Interface from Receiving NTP Messages...............................................................24-11
Configuring the Maximum Number of Dynamic Sessions Allowed.............................................24-11
Configuring Access-Control Rights.....................................................................................................24-11
Configuration Prerequisites .........................................................................................................24-12
Configuration Procedure..............................................................................................................24-12
Configuring NTP Authentication..........................................................................................................24-12
Configuration Prerequisites .........................................................................................................24-12
Configuration Procedure..............................................................................................................24-13
Displaying and Maintaining NTP.........................................................................................................24-14
NTP Configuration Examples..............................................................................................................24-15
Configuring NTP Client/Server Mode..........................................................................................24-15
Configuring the NTP Symmetric Mode........................................................................................24-16
Configuring NTP Broadcast Mode...............................................................................................24-18
Configuring NTP Multicast Mode.................................................................................................24-19
Configuring NTP Client/Server Mode with Authentication...........................................................24-22
Configuring NTP Broadcast Mode with Authentication ...............................................................24-23
25 Cluster Management Configuration.....................................................................................................25-1
Cluster Management Overview.............................................................................................................25-1
Cluster Management Definition.....................................................................................................25-1
Roles in a Cluster ..........................................................................................................................25-1
How a Cluster Works.....................................................................................................................25-2
Cluster Configuration Task List.............................................................................................................25-5
Configuring the Management Device....................................................................................................25-7
Enabling NDP Globally and for Specific Ports ..............................................................................25-7
Configuring NDP Parameters........................................................................................................25-8
Enabling NTDP Globally and for Specific Ports ............................................................................25-8
Configuring NTDP Parameters......................................................................................................25-8
Manually Collecting Topology Information ....................................................................................25-9