Re: [mpls] order between network actions

Loa Andersson <loa@pi.nu> Sat, 17 September 2022 15:41 UTC

Message-ID: <22ca94e7-065a-ab0a-2174-6cc170805329@pi.nu>
Date: Sat, 17 Sep 2022 17:41:06 +0200
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.2.2
Content-Language: en-CA
To: Greg Mirsky <gregimirsky@gmail.com>
Cc: "mpls@ietf.org" <mpls@ietf.org>, Yingzhen Qu <yingzhen.ietf@gmail.com>
References: <f31f6cf5-252e-158e-bd82-85a32aa6840b@pi.nu> <CA+RyBmXReFdWXha7dXamai6Uwq7e2i1VdZ97TLF9YZnNdryq4Q@mail.gmail.com>
From: Loa Andersson <loa@pi.nu>
In-Reply-To: <CA+RyBmXReFdWXha7dXamai6Uwq7e2i1VdZ97TLF9YZnNdryq4Q@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"; format="flowed"
Content-Transfer-Encoding: 8bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/mpls/Cq-uv6QjtRS8H8ynb6EnKBHIVeA>
Subject: Re: [mpls] order between network actions
Precedence: list

Greg,

I like this better than what you said (or maybe what I misheard you 
saying) in the meeting.

I still haven't got my head around the "composite NAs", seems to me that 
it may be extremely hard to handle.

So let us continue to discuss.

/Loa


On 2022-09-15 22:38, Greg Mirsky wrote:
> Hi Loa,
> I agree that that is a plausible case (for example, that is how direct 
> packet loss works). I mentioned that for this case we define a new 
> Network Action (John already proposed "composite Network Action") that 
> defines the order - read the counter and then reset the counter. Tony 
> has pointer out that this can exhaust or explode space used for MNA 
> indicators. That is absolutely valid point and I agree with our decision 
> to continue the discussion.
> 
> Regards,
> Greg
> 
> On Thu, Sep 15, 2022 at 6:12 PM Loa Andersson <loa@pi.nu 
> <mailto:loa@pi.nu>> wrote:
> 
>     Greg and Yingzhen,
> 
>     I mentioned this in the Open DT meeting.
> 
>     Assume that we have a Network Action where one element is that
>     Counter C
>     should be reset.
> 
>     Assume that we have another Network Action where one element is to
>     report the counter.
> 
>     Clearly the result will be different depending on in which order the
>     the
>     NA's are executed.
> 
>     /Loa
> 
> 
> 
>     -- 
>     Loa Andersson                        email: loa@pi.nu <mailto:loa@pi.nu>
>     Senior MPLS Expert loa.pi.nu@gmail.com <mailto:loa.pi.nu@gmail.com>
>     Bronze Dragon Consulting             phone: +46 739 81 21 64
> 

-- 
Loa Andersson                        email: loa@pi.nu
Senior MPLS Expert                          loa.pi.nu@gmail.com
Bronze Dragon Consulting             phone: +46 739 81 21 64

[mpls] order between network actions Loa Andersson
Re: [mpls] order between network actions Greg Mirsky
Re: [mpls] order between network actions Loa Andersson