
viii
About Remote Network Monitoring (RMON) ............................................................6-8
The RMON Groups ............................................................................................6-8
For More Information about RMON .................................................................6-10
Enabling the DCM ..................................................................................................6-11
DCM Global Parameter Descriptions ...............................................................6-13
Managing the DCM Using Site Manager ................................................................6-17
Activating DCM ................................................................................................6-17
Disabling DCM .................................................................................................6-18
Booting DCM ...................................................................................................6-18
Changing DCM Configuration Parameters ......................................................6-19
Deleting the DCM Software Subsystem ..........................................................6-21
Managing the DCM Board Using the Technician Interface .....................................6-22
Changing DCM Configuration Parameters ......................................................6-22
RMON Implementation Notes ................................................................................6-23
RMON Interoperability Issues ................................................................................6-23
RMON Memory Use ........................................................................................6-24
Interoperability Issues and Memory Use for RMON Groups ..................................6-24
Statistics Group ...............................................................................................6-25
History Group ..................................................................................................6-25
Host Group ......................................................................................................6-26
HostTopN Group ..............................................................................................6-27
Matrix Group ....................................................................................................6-27
Filter and Capture Groups ...............................................................................6-28
Appendix A
Troubleshooting Network Boot Problems
Solving Startup Problems .............................................................................................. A-1
Router Fails to Get IP Address ............................................................................... A-2
Upstream Router Not Receiving BOOTP Requests ......................................... A-2
Upstream Router Not Sending BOOTP Responses ......................................... A-2
Router Fails to Netboot ........................................................................................... A-3
Upstream Router Not Receiving BOOTP Requests ......................................... A-3
Router Not Sending BOOTP Responses .......................................................... A-4
BOOTP Server Not Sending BOOTP Responses ............................................ A-4
Router Fails to Perform Directed Netboot ............................................................... A-5
Router Netboots, but Fails to Load Applications ..................................................... A-5
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