[mpls] Re: Poll: IOAM and PSD

[Loa Andersson <[e-mail]>]

Greg,

inline please.

Den 12/08/2024 kl. 11:32, skrev Greg Mirsky:
> Hi Loa,
> could you please clarify when you state
>
>     Which would place it higher in priority of "to be implemented"
>     secifications than draft-mb-mpls-ioam-dex.
>
> you express:
>
>   * your personal opinion
>
I'm an old-timer, even been called grey-beard a couple of times. I 
always speak my opinion, regardless if it aligns with any company or 
another.

Since you have to ask, don't you do that too?

/Loa
>
>   * position of a company you are currently affiliated with
>   * something else
>
> Regards,
> Greg
>
> On Sun, Aug 11, 2024 at 8:26 PM Loa Andersson <[e-mail]> wrote:
>
>     Haoyu,
>
>     It is not the BoS bit only. Since uses type D LSEs, the zero bit is
>     already in use. Set to "1" to avoid confusion with Special Purpose
>     Labels, so only 22 bits for flags.
>
>     Another thing is that RFC RFC 9326 specifies 8 extension flags, while
>     draft-mb-mpls-ioam-dex only have 6 flags. Ity should be noted that
>     draft-gandhi-mpls-mna-ioam-dex nicely aligns with RFC 9326. Which
>     would
>     place it higher in priority of "to be implemented" secifications than
>     draft-mb-mpls-ioam-dex.
>     /Loa
>     Den 12/08/2024 kl. 09:39, skrev Haoyu Song:
>     > Yes. The BOS bit in the label field changes a lot of things.
>     >
>     > Haoyu
>     >
>     > -----Original Message-----
>     > From: Loa Andersson <[e-mail]>
>     > Sent: Sunday, August 11, 2024 8:26 PM
>     > To: Haoyu Song <[e-mail]>; Tony Li
>     <[e-mail]>; mpls <[e-mail]>
>     > Subject: Re: [mpls] Re: Poll: IOAM and PSD
>     >
>     > Haoyu,
>     >
>     > do you mean that since specification of IOAM-DEX (RFC 9326)
>     following
>     > RFC9197 specifies
>     >
>     > - IOAM-Trace-Types of 24 bit flag fields And Optional Fields -
>     Flow ID
>     > 32 bits - Sequence Number 32 bits And draft-mb-mpls-ioam-dex
>     specifies - IOAM Trace Types of 22 flag bits And optional fields -
>     Flow ID 30 bits - sequence number 11 bits (variable) That
>     draft-mb-mpls-ioam-dex is strictly not compatible with RFC 9326?
>     /Loa Den 09/08/2024 kl. 07:35, skrev Haoyu Song:
>     >> Hi Tony,
>     >>
>     >>
>     >>
>     >> My response is inline.
>     >>
>     >>
>     >> Regards,
>     >>
>     >> Haoyu
>     >>
>     >> *From:* Tony Li <[e-mail]> *On Behalf Of *Tony Li
>     >> *Sent:* Tuesday, July 30, 2024 8:26 AM
>     >> *To:* mpls <[e-mail]>
>     >> *Subject:* [mpls] Poll: IOAM and PSD
>     >>
>     >> [WG chair hat: on]
>     >>
>     >> Hi all,
>     >>
>     >> We’ve had many discussions about IOAM and PSD over the last few
>     years.
>     >> We need to reach consensus on the problems that need to be
>     addressed
>     >> in these areas. Therefore, we would like to hear from everyone,
>     >> especially independent operators:
>     >>
>     >>   1. There are many flavors of IOAM.  Which ones would you like to
>     >>      deploy/implement with MNA?
>     >>
>     >> [HS] I’d like MNA to support IOAM DEX and Trace option as
>     specified in
>     >> RFC9326 and RFC9197 using PSD. The reasons are:
>     >>
>     >>       1. Comply with existing standards, can be directly used
>     without
>     >>          any hassle
>     >>       2. Support potential cross-domain interoperation (e.g.,
>     cross the
>     >>          boundary of MPLS domain and non-MPLS domain)
>     >>       3. IOAM trace (i.e., the passport mode) is very useful in
>     many
>     >>          realtime measurement/congestion control applications
>     (e.g.,
>     >>          HPCC and tons of published research papers), therefore
>     it has
>     >>          great potential for future wider application.
>     >>
>     >>   2. Do you have other applications of MNA that have not been
>     proposed yet?
>     >>
>     >> [HS] I’d like to see a simple flag-based action to support the
>     >> postcard mode telemetry.
>     >>
>     >> I’d like also see the support of application level ID and
>     metadata to
>     >> better support the application-aware networking.
>     >>
>     >>   This poll will close in two weeks, at 9am PDT, Aug 13.
>     >>
>     >> Regards,
>     >>
>     >> MPLS chairs
>     >>
>     >>
>     >>
>     >>
>     >> _______________________________________________
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>     > --
>     > Loa Andersson
>     > Senior MPLS Expert
>     > Bronze Dragon Consulting
>     > [e-mail]
>     > [e-mail]
>     >
>
>     -- 
>     Loa Andersson
>     Senior MPLS Expert
>     Bronze Dragon Consulting
>     [e-mail]
>     [e-mail]
>
>     _______________________________________________
>     mpls mailing list -- [e-mail]
>     To unsubscribe send an email to [e-mail]
>

-- 
Loa Andersson
Senior MPLS Expert
Bronze Dragon Consulting
[e-mail]
[e-mail]