Chapter 37 Configuring Rmon; Understanding How Rmon Works - Cisco WS-X6066-SLB-APC - Content Switching Module Software Manual

Configuring RMON
This chapter describes how to configure RMON on the Catalyst 6000 family switches.
For complete syntax and usage information for the commands used in this chapter, refer to the
Note
Catalyst 6000 Family Command Reference publication.
This chapter consists of these sections:
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Understanding How RMON Works

RMON is an Internet Engineering Task Force (IETF) standard monitoring specification that allows
various network agents and console systems to exchange network monitoring data. The supervisor
engine software provides embedded support for these components of the RMON specification (see the
"Supported RMON and RMON2 MIB Objects" section on page 37-2
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Understanding How RMON Works, page 37-1
Enabling RMON, page 37-2
Viewing RMON Data, page 37-2
Supported RMON and RMON2 MIB Objects, page 37-2
The following RMON groups are defined in RFC 1757:
Statistics (RMON group 1) for Ethernet, Fast Ethernet, Fast EtherChannel, and Gigabit Ethernet
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switch ports (uses 140 bytes of supervisor engine RAM per port)
History (RMON group 2) for Ethernet, Fast Ethernet, Fast EtherChannel, and Gigabit Ethernet
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switch ports (uses 3 KB of supervisor engine RAM for the first 50 buckets; each additional
bucket uses another 56 bytes)
– Alarm (RMON group 3; each alarm configured uses 1.3 KB of supervisor engine RAM)
Event (RMON group 9; each event configured uses 1.3 KB of supervisor engine RAM)
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The following RMON2 groups are defined in RFC 2021:
UsrHistory (RMON2 group 18)
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– ProbeConfig (RMON2 group 19)
Catalyst 6000 Family Software Configuration Guide—Releases 6.3 and 6.4
C H A P T E R
for details):
37
37-1