xiv
Examples ............................................................................................................................................. 17-18
Chapter 18: Configuring Network Monitoring
Basic Network Monitoring Features .............................................................................................................. 18-1
Console/Telnet History Buffer ................................................................................................................ 18-1
Network Diagnostics .............................................................................................................................. 18-2
Switch Connection Statistics .................................................................................................................. 18-2
Users ...................................................................................................................................................... 18-3
RMON ........................................................................................................................................................... 18-3
RMON Design Considerations ............................................................................................................... 18-4
Configuring RMON ................................................................................................................................. 18-5
sFlow ............................................................................................................................................................ 18-9
Using sFlow in Your Network ............................................................................................................... 18-10
Definitions ............................................................................................................................................ 18-10
sFlow Agent Functionality .................................................................................................................... 18-11
Sampling Mechanisms ......................................................................................................................... 18-11
Packet Flow Sampling....................................................................................................................18-11
Counter Sampling...........................................................................................................................18-11
Sampling Implementation Notes.....................................................................................................18-12
Configuring sFlow ................................................................................................................................ 18-12
Overview.........................................................................................................................................18-12
Procedure.......................................................................................................................................18-14
Chapter 19: Configuring Multicast
Using Multicast in Your Network ................................................................................................................... 19-1
Implementing Multicast .......................................................................................................................... 19-1
Multicast Operation ................................................................................................................................ 19-2
Internet Group Management Protocol (IGMP) ....................................................................................... 19-2
Overview...........................................................................................................................................19-2
IGMP Support on Enterasys Devices ...............................................................................................19-3
Example: Sending a Multicast Stream..............................................................................................19-4
Distance Vector Multicast Routing Protocol (DVMRP) ........................................................................... 19-5
Overview...........................................................................................................................................19-5
DVMRP Support on Enterasys Devices ...........................................................................................19-5
Protocol Independent Multicast (PIM) .................................................................................................. 19-11
Overview.........................................................................................................................................19-11
PIM Support on Enterasys Devices................................................................................................19-13
PIM Terms and Definitions .............................................................................................................19-14
Configuring IGMP ....................................................................................................................................... 19-15
Basic IGMP Configuration .................................................................................................................... 19-17
Example IGMP Configuration on Layer 3 .......................................................................................19-17
IGMP Display Commands .................................................................................................................... 19-18
Configuring DVMRP ................................................................................................................................... 19-18
DVMRP Configuration Commands ...................................................................................................... 19-18
Basic DVMRP Configuration ................................................................................................................ 19-19
Example DVMRP Configuration .....................................................................................................19-19
Displaying DVMRP Information ............................................................................................................ 19-20
Configuring PIM-SM ................................................................................................................................... 19-21
Design Considerations ......................................................................................................................... 19-21
PIM-SM Configuration Commands ...................................................................................................... 19-21
Basic PIM-SM Configuration ................................................................................................................ 19-22
Example Configuration ...................................................................................................................19-22
PIM-SM Display Commands ................................................................................................................ 19-24
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