At 04:43 PM 1/8/01, Pierre-Alex wrote:
>Thank You Priscilla. Where did you find this information? In the RFCs or did
>you
>actually read books about the subject?
I lived it. &;-) I worked for Network General (makers of the Sniffer) in
the early 1990s. Knowing RMON was important because RMON probes threatened
to compete with Sniffers (since RMON probes can capture packets, among
their other capabilities.)
The RMON RFC 1757 is quite readable also, if you wanted to try it. But it
doesn't have a lot of background on why RMON was developed, so it might not
have answered your particular question.
Also, I verified my answer by checking my own book, &;-) "Top-Down Network
Design," which talks briefly about RMON. RMON is also covered in a cursory
fashion in the various Cisco Internetwork Troubleshooting (CIT) books.
The Internetworking Technologies Overview book (Web pages) from Cisco also
talk about RMON here:
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/rmon.htm
Also, check out the chapter on SNMP here:
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/snmp.htm
Priscilla
>Pierre-Alex
>
>-----Original Message-----
>From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]]
>Sent: Monday, January 08, 2001 2:19 PM
>To: Pierre-Alex; Cisco
>Subject: Re: SNMP versus RMON
>
>
>At 10:06 AM 1/8/01, Pierre-Alex wrote:
> >Please pardon my ignorance.
> >
> >Why did Cisco invent RMON?
>
>They didn't invent it. The IETF developed RMON in the early 1990s because
>the standard MIBs at the time lacked statistics on data-link and
>physical-layer parameters. The standard MIBs were focused on IP and upper
>layers. The first RMON MIB provided Ethernet traffic and fault info, such
>as CRC errors, collisions, etc. In 1994, Token Ring was added for stuff
>like soft-error reports, beaconing reports, etc.
>
>Priscilla
>
>
> >SNMP seems to do exactly the same job (i.e. it provides information on all
> >aspects of the network).
> >
> >I must be missing something ...
> >
> >_________________________________
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>
>________________________
>
>Priscilla Oppenheimer
>http://www.priscilla.com
>
>
>_________________________________
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________________________
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http://www.priscilla.com
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