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Chapter 11
Rebooting Your System ...............................................................................514
Configuration Caching ..........................................................................517
Operations in Boot Mode .............................................................................517
Displaying Boot Information .......................................................................517
Output Filtering ....................................................................................520
Overview .....................................................................................................521
NTP .......................................................................................................521
System Operation as an NTP Client ......................................................522
Synchronization .............................................................................523
System Operation as an NTP Server .....................................................524
Platform Considerations ..............................................................................524
References ..................................................................................................524
Setting the System Clock Manually ..............................................................525
Before You Configure NTP ...........................................................................527
Choosing NTP Servers ...........................................................................527
NTP Configuration Tasks .............................................................................527
Enabling NTP Services ..........................................................................527
NTP Client Configuration ......................................................................528
Directing Responses from NTP Servers ..........................................529
Refusing Broadcasts from NTP Servers ...........................................530
NTP Server Configuration .....................................................................530
Configuration Examples ........................................................................532
Monitoring NTP ...........................................................................................533
Overview .....................................................................................................539
Default Virtual Router ...........................................................................539
Virtual Router Instances ........................................................................539
Routing Protocols ..................................................................................540
VPNs and VRFs .....................................................................................540
VPNs ..............................................................................................540
VRFs ...............................................................................................540
Platform Considerations ..............................................................................541
References ..................................................................................................541
Configuring Virtual Routers .........................................................................541
Monitoring Virtual Routers ..........................................................................545
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