Be aware of the differences between physical layer technologies. This may
apply for 10 mbit links, but not work correctly for 100Mbit and gigabit.
Also full and half duplex characteristics must be considered.
At 11:20 AM 10/12/99 -0500, Waddle, Duane wrote:
>The "best" formula that I've (personally) seen will accommodate for the
>preamble and the interpacket gap. Algebraically, it goes:
>
> #packets * (9.6 + 6.4) + #octets * 0.8
> ----------------------------------------------------------
> Interval * 10000
>
>and should result in a value in the range of 0 - 100. I have also coded a
>MIB expression for it, which looks like:
>
>EtherUtil \
>"Ethernet Utilization" \
> .1.3.6.1.2.1.16.1.1.1.5. \
> 16 * \
> .1.3.6.1.2.1.16.1.1.1.4. \
> 0.8 * + \
> 10000 /
>
>
>This should be directly placeable in MibExpr.conf
>
>--D
>
>> -----Original Message-----
>> From: Gord Michaels [SMTP:gord_michaels@HOTMAIL.COM]
>> Sent: Monday, October 04, 1999 10:00 PM
>> To: NV-L@UCSBVM.UCSB.EDU
>> Subject: ifInOctets...
>>
>> Hello All.
>>
>> I am interested in collecting/graphing the standard MIB OIDs:
>>
>> ifInOctets
>> ifOutOctets
>>
>> I want to see the total traffic/sec in and out of a certain ethernet
>> interface. Do these two MIB Objects dynamically keep track of total
>> octets(bytes)/sec or just IP octets/sec. Is frameing included.
>>
>> If these are just for IP, what could tell me the total octets/sec for all
>> traffic, i.e. IP + IPX + etc...
>>
>> Any info appreciated.
>>
>> Sincerely,
>>
>> Gord Michaels.
>>
>> ______________________________________________________
>> Get Your Private, Free Email at http://www.hotmail.com
Connie Logg cal@slac.stanford.edu
Network Analyst SLAC - ms 97
650-926-2879 P.O. Box 4349, Stanford, CA 94309
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