Re: [OPSAWG] IETF 106 Discussion about draft-gray-sampled-streaming - room moved

["Frank Brockners (fbrockne)" <[e-mail]>]

Andrew,



per the discussion in the WG meeting this morning: It would be good if the draft could compare the proposed approach to what is already available with IPFIX and PSAMP (RFC5476). As part of that you could consider adding an IPFIX example as another “data plane option” to section 4 of the draft.

Using your first example as reference, you could choose IPFIX fields (https://www.iana.org/assignments/ipfix/ipfix.xhtml) which match your definitions.
Example (just took a quick glimpse at possible choices – there are other mappings which could apply as well):


  *   “act” fields (forward, drop, bad TTL, …) -> forwardingStatus (u8)
  *    “incoming port” -> ingressInterface (u32)
  *   “timestamp” -> Export time (in IPFIX header)
  *   “frame length” -> totalLengthIPv4 (u32) (example for v4 – assuming we export the entire packet)
  *   “Internal Data 1” -> paddingOctets

Using your example 1 – one possible IPFIX equivalent could look like:

0                   1                   2                   3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+---+---
|        Version Number         |             Length            |   |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+   |
|                     Export Time (seconds)                     |IPFIX
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Message
|                        Sequence Number                        |Header
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+   |
|                     Observation Domain ID                     |   |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+---+--
|    Set ID ( = Template ID)    |             Length            |SetHdr
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+---+--
|                        ingressInterface                       |   |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+   |
|                        totalLengthIPv4                        |   |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+   |
| fwdingStatus  | paddingOctets |     sectionExportedOctets     | Record1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+   |
|                 ipHeaderPacketSection (start)                 |   |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+   |
|                              ...                              |   |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+   |
|                 ipHeaderPacketSection (end)                   |   |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+---+--
|                        ingressInterface                       |   |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+   |
|                        totalLengthIPv4                        |   |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+   |
| fwdingStatus  | paddingOctets |     sectionExportedOctets     | Record2
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+   |
|                 ipHeaderPacketSection (start)                 |   |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+   |
|                              ...                              |   |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+   |
|                 ipHeaderPacketSection (end)                   |   |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+---+--



Frank



> -----Original Message-----

> From: OPSAWG <[e-mail]> On Behalf Of Gray, Andrew A

> Sent: Mittwoch, 20. November 2019 12:11

> To: [e-mail]

> Subject: [OPSAWG] IETF 106 Discussion about draft-gray-sampled-streaming -

> room moved

>

> After a couple bits of feedback, I have moved the session to be in the Padang

> room at 9:00am to avoid conflict with the morning session.

>

> On 11/20/19, 11:59 AM, "OPSAWG on behalf of Gray, Andrew A" <opsawg-<mailto:[e-mail][e-mail]>

> [e-mail] on behalf of [e-mail]<mailto:[e-mail][e-mail]>> wrote:

>

>     Following the presentation of https://datatracker.ietf.org/doc/draft-gray-<https://datatracker.ietf.org/doc/draft-gray-sampled-streaming/>

> sampled-streaming/<https://datatracker.ietf.org/doc/draft-gray-sampled-streaming/> during the session, questions and comments were cut off

> due to time, and there was the suggestion to make a separate session for

> ongoing conversation.

>

>     I reserved the Butterworth room on Thursday at 10am for this, and am very

> interested in hearing from people on this draft.

>

>     Thanks

>

>

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