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8-1

Time Protocols

Chapter Contents

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

TimeP Time Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8- 2

SNTP Time Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

Overview: Selecting a Time Synchronization Protocol or Turning Off Time

Protocol Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

General Steps for Running a Time Protocol on the Switch: . . . . . . . . 8-3

Disabling Time Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

SNTP: Viewing, Selecting, and Configuring . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Menu: Viewing and Configuring SNTP . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

CLI: Viewing and Configuring SNTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8

Viewing the Current SNTP Configuration . . . . . . . . . . . . . . . . . . . . 8-8

Configuring (Enabling or Disabling) the SNTP Mode . . . . . . . . . . 8-9

TimeP: Viewing, Selecting, and Configuring . . . . . . . . . . . . . . . . . . . . . . . . 8-13

Menu: Viewing and Configuring TimeP . . . . . . . . . . . . . . . . . . . . . . . . 8-14

CLI: Viewing and Configuring TimeP . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16

Viewing the Current TimeP Configuration . . . . . . . . . . . . . . . . . . 8-16

Configuring (Enabling or Disabling) the TimeP Mode . . . . . . . . 8-17

SNTP Unicast Time Polling with Multiple SNTP Servers . . . . . . . . . . . . . 8-20

Address Prioritization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21

Adding and Deleting SNTP Server Addresses . . . . . . . . . . . . . . . . . . . 8-21

Menu Interface Operation with Multiple SNTP Server Addresses Configured

8-23

SNTP Messages in the Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-23

HP 4108GL User Manual

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