3Com 4210G Series Configuration Manual page 817

Voice Test Configuration Example ······························································································23-34
DLSw Test Configuration Example ·····························································································23-37
NQA Collaboration Configuration Example ·················································································23-38
25 NTP Configuration ·································································································································25-1
NTP Overview ·······································································································································25-1
Applications of NTP ·······················································································································25-1
Advantages of NTP ·······················································································································25-1
How NTP Works ····························································································································25-2
NTP Message Format ···················································································································25-3
Operation Modes of NTP···············································································································25-4
Multiple Instances of NTP ·············································································································25-6
NTP Configuration Task List ·················································································································25-6
Configuring the Operation Modes of NTP·····························································································25-7
Configuring NTP Client/Server Mode ····························································································25-7
Configuring the NTP Symmetric Peers Mode ···············································································25-8
Configuring NTP Broadcast Mode·································································································25-9
Configuring NTP Multicast Mode···································································································25-9
Configuring Optional Parameters of NTP ···························································································25-10
Specifying the Source Interface for NTP Messages ···································································25-10
Disabling an Interface from Receiving NTP Messages·······························································25-11
Configuring the Maximum Number of Dynamic Sessions Allowed ·············································25-11
Configuring Access-Control Rights ·····································································································25-11
Configuration Prerequisites ·········································································································25-12
Configuration Procedure··············································································································25-12
Configuring NTP Authentication··········································································································25-12
Configuration Prerequisites ·········································································································25-12
Configuration Procedure··············································································································25-13
Displaying and Maintaining NTP·········································································································25-14
NTP Configuration Examples··············································································································25-15
Configuring NTP Client/Server Mode ··························································································25-15
Configuring the NTP Symmetric Mode························································································25-16
Configuring NTP Broadcast Mode·······························································································25-18
Configuring NTP Multicast Mode·································································································25-19
Configuring NTP Client/Server Mode with Authentication···························································25-22
Configuring NTP Broadcast Mode with Authentication ·······························································25-23
26 Cluster Management Configuration·····································································································26-1
Cluster Management Overview·············································································································26-1
Cluster Management Definition ·····································································································26-1
Roles in a Cluster ··························································································································26-1
How a Cluster Works·····················································································································26-2
Cluster Configuration Task List·············································································································26-5
Configuring the Management Device····································································································26-7
Enabling NDP Globally and for Specific Ports ··············································································26-7
Configuring NDP Parameters········································································································26-8
Enabling NTDP Globally and for Specific Ports ············································································26-8
Configuring NTDP Parameters······································································································26-8
Manually Collecting Topology Information ····················································································26-9
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