Re: XAUI Jitter Agenda 31st January
Hi Anthony,
All IEEE P802.3 reflectors are limited by default to a maximum message size of
100,000 characters (that is the text of the mail plus the attachment, usually
UUENCODED - which among its other features causes an expansion of the attachment
size). Any message that is larger than this limit will be bounced to the list
owner.
As an experiment I would be happy to increase the limit to be 500,000 characters
on this reflector to see if any users have a problem - I would expect that as
list owner I would receive an error message from any servers that could not cope
with that size. If we do have problems with this message size for some people we
will have to go back to the 100,000 limit, unfortunately we can't have the
situation where an e-mail with a large attachment will only go to a subset of
the reflector membership and therefore we have to live with the lowest common
denominator.
Bye for now,
David Law
Anthony Sanders <anthony.sanders@infineon.com> on 31/01/2001 10:10:07
Please respond to anthony.sanders@infineon.com
Sent by: Anthony Sanders <anthony.sanders@infineon.com>
To: "Serial PMD reflector
cc: (David Law/GB/3Com)
Subject: XAUI Jitter Agenda 31st January
XAUI Jitter Agenda 31st January
XAUI Jitter Telco
24th January 2001
10:30 (PST)
19:30 (CET)
Duration 90mins
Outside US : +1 865 5253200
Inside US : 800 8919585
Participant Code : 674 870
Lines : 15 (with option to extend)
Please find a list of the open action points for this mornings/evening
XAUI Jitter Telco. We will most likely concerntrate on the two main
issues i.e simulation results (section 10) and patterns (section 6).
I would ask that the simulation results be distributed before the
meeting to the following list of people, (I believe the reflector will
not accept attached .pdf).
Ali Ghiasi <aghiasi@earthlink.net>,
"Anthony.sanders@infineon.com" <anthony.sanders@infineon.com>,
Adam Healey <ahealey@lucent.com>,
Allan Liu <allan_liu@agilent.com>,
Bijit Patel <bijit_patel@pmc-sierra.com>,
Bob Smith <robert@hibandsemi.com>,
Dennis Petrich <dpetrich@wavecrest.com>,
Jason Chen <jchen@bitblitzcom.com>,
Jeff Cain <jcain@cisco.com>,
Jeff Porter <j.porter@motorola.com>,
Jim Hesson <jhesson@hessonlabs.com>,
John Wright <john.wright@velio.com>,
Kesling Dawson W <dawson.w.kesling@intel.com>,
Mike Jenkins <jenkins@lsil.com>,
Peter Dartnell <dartnell@nortelnetworks.com>,
"Rich Taborek Sr." <rtaborek@nserial.com>,
Richard Dugan <richard_dugan@agilent.com>,
Robbie Shergill <robbie.shergill@nsc.com>,
Ron Miller <rmiller@brocade.com>,
Schelto vanDoorn <schelto@wco.com>,
Shawn Rogers <s-rogers@ti.com>,
"Tord Haulin <tord.haulin@optillion.com>,
Leo Wong" <lwong@bitblitzcom.com>,
Tom Lindsay <Tom.Lindsay@vixel.com>
Open Actions :
1.2 Very low frequency jitter definition frequency and amplitude
A- Extention of lower frequency down to lower frequency should be
done as comment to D2.1 (Adhoc)
2.5 IEEE Sections, Annex´s and References
A- An additional Annex shall be written to cover methodology
A- Section for Clause 47 to be written (Anthony, end week).
4.3 DJ from Channel Compliance
A- Jitter group must decide whether to accept min/max channel
compliance, and new jitter numbers. (See Complete Model)
4.4 FEXT/NEXT (Cross Talk)
A- Crosstalking specifications from typical connectors to be
collected from connector manufacturers by Rich and Ali.
A- Theoritical simulation of expected differential crosstalk to be
done (Anthony)
4.6 Return Loss
Concerns exists concerning current RL specification.
A- Verification of max/min capability of RL required. Distance of
the first connectors from the driver should be verified for WC.
A- Jeff Cain and Tom to try and quantify RL requirements.
- See section 10. concerning overall verification.
6.4 Defined patterns
A- Open issues concerning patterns to be closed (Rich.T, Mysticom,
Tom Lindsay, Tord)
6.4.1 Compliance Definition
A- Tom.L to get reflector traffic moving with respect to transmit
pattern issue.
6.5 Test Equipment for Pattern Compliance testing
A- Input concerning types of equipment available (All)
10. Overall Verification of Jitter Budget
A- Ongoing simulations for verification of newly proposed jitter
numbers and patterns are ongoing by
- Jeff Cain
- Tom Gray
- IFX
- Mysticom
- Jeff Porter