[EFM] RE: OAM Proposals - a ping by any other name
- To: "Romascanu, Dan (Dan)" <dromasca@xxxxxxxxx>, <bob.barrett@xxxxxxxxxxxxxxxxxx>, "Taborek, Rich" <rich.taborek@xxxxxxxxx>, "Martin Nuss" <nuss@xxxxxxxxxxxxxxxxxxxxx>, <Kevin.Daines@xxxxxxxxxxxxxxxxxxxx>, <hsuzuki@xxxxxxxxx>
- Subject: [EFM] RE: OAM Proposals - a ping by any other name
- From: Roy Bynum <rabynum@xxxxxxxxxxxxxx>
- Date: Mon, 22 Apr 2002 09:11:51 -0500
- Cc: <MSquire@hatterasnetworks.com>, <rbrand@nortelnetworks.com>, stds-802-3-efm@ieee.org
- In-Reply-To: <AAB4B3D3CF0F454F98272CBE187FDE2F01396851@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
- Sender: owner-stds-802-3-efm@majordomo.ieee.org
Dan,
I agree with you. Preamble as it is may require a new chip set for all the
test equipment. A baseline including the "null" frame of a preamble
without an Ethernet MAC frame will require the replacement of every piece
of Ethernet test equipment that every enterprise and service provider
currently has. I am not sure that the industry can support that right now.
Thank you,
Roy Bynum
At 01:10 PM 4/22/2002 +0300, Romascanu, Dan (Dan) wrote:
> >
> > A system will send an OAMinP preamble approximately once
> > every 125u seconds,
> > either by substitution on the next available frame, or by
> > sending a null
> > frame. The null frame to be of current min size PDU, or
> > shorter, if EFM
> > defines such a new PDU for null frame.
> >
>I might have missed some previous discussions, but why should EFM define a
>PDU null frame of a size shorter than the current min size PDU. This would
>break all existing performance monitoring tools, and require a re-shuffle
>of the size distribution counters in the existing standard Ethernet and
>RMON MIBs.
>
>Regards,
>
>Dan