[afnog] AMS-IX concerns

[Andrew Alston]

Could also be a counter issue on the graphs that’s wrapping?

Though not sure if that would go all the way to a gig before it wrapped?

Andrew Alston
Group Head of IP Strategy
[cid:CB0DD97D-F96B-44A7-A56C-39C06AD49A90]
Sameer business Park, Block A, Mombasa Road. Nairobi, Kenya
T: +254 205000000 -  M: +254 733 2222 04 - E: andrew.alston at liquidtelecom.com

From: Adam Nelson <adam at varud.com<mailto:adam at varud.com>>
Date: Wednesday, October 29, 2014 at 6:31 PM
To: Frank Habicht <geier at geier.ne.tz<mailto:geier at geier.ne.tz>>
Cc: "afnog at afnog.org<mailto:afnog at afnog.org>" <afnog at afnog.org<mailto:afnog at afnog.org>>
Subject: Re: [afnog] AMS-IX concerns

Frank,

JTL is totally hosed right now but this was happening yesterday too.

Unfortunately, there aren't daily charts farther back that I can see.

I understand the manual thing but this chart shows, suspiciously, that the throughput gets up to about 1Gbps and then drops dramatically - then gets back up there, and drops again.  That seems like routing around a throttled connection or something automatic.

-Adam



--
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More Musings: varud.com<http://varud.com>
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On Wed, Oct 29, 2014 at 6:27 PM, Frank Habicht <geier at geier.ne.tz<mailto:geier at geier.ne.tz>> wrote:
Hi Adam,

according to
https://eastafrica.ams-ix.net/connected_parties
there are 4 peers connected (IXP NOC not counted).

if one or two of them occasionally see better routes (not via IXP) to
destinations at one or two of the other peers, something like this can
easily happen imho.

It look like it happens quite often, and doesn't last long, so routes are
unstable. Generally not good. that happening only during work hours I would
guess one (or more) humans are part of this - ie not because of saturation.
My _feeling_ ....

only participating networks, or route server operator are really able to tell.
(Oh, and I heard: one of the participants is doing a network upgrade)

Frank


On 10/29/2014 6:03 PM, Adam Nelson wrote:
> Hello,
>
> I'm looking at the following chart:
>
> https://eastafrica.ams-ix.net/technical--4/statistics
> https://dl.dropboxusercontent.com/s/ncjo6o4yi0lgivd/2014-10-29%20at%202.24%20PM.png?dl=0
>
> I've looked at enough charts to see that the flat top at 1Gbps with deep
> dips signals a saturation of some sort.
>
> However, I'm getting a very negative response from AMS-IX and since they
> won't give out peering data, there's no way to confirm my suspicions that
> something is wrong there.
>
> Anyway, does anybody have any information to support or refute the claim?
> I may be totally wrong (which would be fine) but I really don't know.
> Unfortunately, JTL, Safaricom, and KENET are all mostly down today so I'm
> having trouble doing much research.
>
> Cheers,
> Adam
> --
> Kili - Cloud for Africa: kili.io<http://kili.io> <http://kili.io/>
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> <https://www.linkedin.com/in/adamcnelson>
>
>
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>



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