Last Modified: 2004-09-22
|Done||Submit initial Framework document|
|Done||Submit initial Packet selector and packet information document|
|Done||Submit initial Report format and report stream format document|
|Done||Submit initial Export and requirements for collectors document|
|Done||Submit initial MIB document|
|May 03||Submit final Framework document|
|May 03||Submit final Packet selector and packet information document|
|Sep 03||Submit final Report format and report stream format document|
|Oct 03||Submit final Export and requirements for collectors document|
|Nov 03||Submit final MIB document|
Minutes of the PSAMP BOF session at IETF 61
Friday November 12, 9:00 h - 11:30 h
Packet Sampling Working Group
Chairs: Andy Bierman <email@example.com>, Juergen Quittek <firstname.lastname@example.org>
Minutes taken by Dave Plonka and Ralf Wolter
0. Session Summary
1. PSAMP WG Status
2. Update of Sampling Framework
3. Update od Packet Selection
4. Discussion of open PSAMP protocol issues
5. Discussion of open PSAMP Information Model issues
6. PSAMP MIB
7. Wrap up
Discussed Internet drafts
A Framework for Passive Packet Measurement http://www.ietf.org/internet-drafts/draft-ietf-psamp-framework-09.txt
Sampling and Filtering Techniques for IP Packet Selection http://www.ietf.org/internet-drafts/draft-ietf-psamp-sample-tech-05.txt
Packet Sampling (PSAMP) Protocol Specifications (expired) draft-ietf-psamp-protocol-01.txt
Information Model for Packet Sampling Exports http://www.ietf.org/internet-drafts/draft-ietf-psamp-info-02.txt
Definitions of Managed Objects for Packet Sampling http://www.ietf.org/internet-drafts/draft-ietf-psamp-mib-03.txt
0. Session Summary
The PSAMP WG finished last call of its first document, the PSAMP framework. A few editorial issues were still put on the list of actions items during the meeting. The document on packet selection is still in WG last call. The call was extended, because the number of reviews was performed until the session was not sufficient. After completing the packet selection document all required input for the PSAMP MIB is available and this document can be completed next. The remaining two document, the protocol and the information model specification, are on hold, because they depend on the IPFIX protocol and information model specifications, which are not finished yet. If work in the IPFIX WG progresses as expected, the two missing documents can be discussed at the next meeting and will enter WG last call shortly after that meeting.
1. PSAMP WG Status (Juergen)
The PSAMP framework document passed WG last call. It will be forwarded to the area directors soon. The packet selection document is quite mature. The deadline of WG last call on this document is past, but since there was no serious review to be observed yet, it remains in last call. Juergen requested that positive responses to the draft should be posted as well so that there is evidence that it has been reviewed.
Protocol and info model document are waiting for progress of the corresponding IPFIX docuements. Work on the PSAMP MIB can go on when last call on the packedt selection document is closed. Then the PSAMP MIB can be completed soon.
2. PSAMP Framework Document (Nick Duffield)
Nick explained that there were only minor changes applied to the draft since the last version. The last call is closed and should be ready for WG last call.
[Benoit Claise] On the low-level filter, we only kept logical AND [in the packet selection draft] and removed logical OR because it was too hard to model, so it should be removed from this doc as well.
[Tanja Zseby] I agree and think this was just overlooked.
Andy reminded participants who review docs to make it known (that they reviewed it) even if there are no negative issues/problems
3. Sampling and Filtering Techniques (Tanja Zseby)
Tanja explained that Mask/match was renamed to field match filter. Low level filter definition were substituted by a high level definition. There are further minor changes, e.g. the terminology section was updated. the Introduction and text on other PSAMP document was added as well as the AT&T IPR statement.
Tanja requested that people read the document, and send feedback regardless of whether or not there are problems
[Andy] Are there any volunteers willing to commit to reviewing this document in the next 2-3 weeks? I don't see a way to move forward unless there's reviews.
Stewart Bryant offered to do so.
4. PSAMP Protocol Specifications (Benoit Claise)
Benoit explained that there was no proegress on this document because it strongly depends on the IPFIX protocol document that is not yet finished. The draft is already expired. Benoit present a summary of recent progress with the IPFIX protocol document. For details about IPFIX, see BenoitÕs section in the minutes of the IETF 61 IPFIX session. After completing IPFIX WG last call, work on the PSAMP protocol draft will continue.
[Andy] Is this a big delay in the PSAMP schedule
[Dave Plonka (IPFIX chair)] PSAMP participants should/could review the IPFIX protocol document.
[Juergen] When the IPFIX protocol is complete, there will be no big technical issues for the PSAMP protocol.
5. PSAMP Information Model (no slides)
Jrgen listed of open PSAMP Information Model issues. The state is similar to the protocol document, but the draft was updated in July 2004 and is not yet expired. After completing IPFIX WG last call on the IPFIX info model, work on the PSAMP IM draft will continue. A new version should be available by the next meeting.
6. PSAMP MIB (no slides)
Also this draft was not not updated since July 2004. But the MIB is almost complete, except for some work on packet selection, due to updates in that area. After packet selection document finishes WG last call, the MIB could go to last call as well, currently targeted for December 04.
7. Wrap up
The meeting was adjourned. Following the meeting, Juergen invited those in the room to review the drafts documents now, since there was plenty of time left in the session's time slot.