Hurricane Electric recently (a few months ago) started measuring
repeated announcements, repeated withdrawals, in addition to flapping
prefixes.
https://bgp.he.net/report/netstats#_flap
Stats are organized by prefix, ASN, and peer IP relative to flapping
prefixes, repeated announcements, and
sday, February 19, 2025 02:13
To: Geoff Huston
Cc: [IIJ] Fontugne Romain; NANOG
Subject: Re: Noisy prefixes in BGP
On Sun, Feb 09, 2025 at 04:41:05PM +1100, Geoff Huston wrote:
>Hi Romain
>
> We are seeing in RIS data a constant flow of update messages from a few
> ASes
On Sun, Feb 09, 2025 at 04:41:05PM +1100, Geoff Huston wrote:
>Hi Romain
>
> We are seeing in RIS data a constant flow of update messages from a few
> ASes, here is the list of the top prefixes:
>
> ┌─┬┬──┐
> │ prefix
Hello,
I've been following this thread, and I find it quite interesting.
I’m curious if there is an official definition for "noisy prefix" (or
perhaps "noisy AS").
Thank you,
On 9/2/25 1:01 AM, Romain Fontugne via NANOG wrote:
Hi,
We are seeing in RIS data a constant flow of update mess
On 2025-02-09 07:43, James Bensley wrote:
* There are no knobs in existing BGP implementations to detect and
limit this behaviour in anyway.
100% agreed. Looked into this a couple weeks ago on our $VENDOR_C gear,
and we saw the prefixes Romain mentioned as well as many others in
Geoff's repo
I'm escalating this internally. I hope to have this resolved
asap.
- Jared
On Sun, Feb 09, 2025 at 04:41:05PM +1100, Geoff Huston wrote:
>Hi Romain
>
> We are seeing in RIS data a constant flow of update messages from a few
> ASes, here is the list of the top prefi
half of
Philip Smith
Date: Monday, 10 February 2025 at 6:32 AM
To: James Bensley
Cc: NANOG
Subject: Re: Noisy prefixes in BGP
I guess all we can do is keep highlighting the problem (I highlight
Geoff's BGP Update report almost every BGP Best Practice training I run
here in AsiaPac, for e
riginal Message-
From: NANOG On Behalf Of
Romain Fontugne via NANOG
Sent: Sunday, February 9, 2025 22:15
To: James Bensley ; NANOG ; Geoff
Huston
Subject: Re: Noisy prefixes in BGP
Thanks James, great tool, I have bookmarked that.
It has amazing examples of how absurd announcements
Date: Monday, 10 February 2025 at 6:32 AM
To: James Bensley
Cc: NANOG
Subject: Re: Noisy prefixes in BGP
I guess all we can do is keep highlighting the problem (I highlight
Geoff's BGP Update report almost every BGP Best Practice training I run
here in AsiaPac, for example) - but how to make
Hi James,
We see the same incredible noise from a few peers we have at RouteViews.
So much so that they put quite a stress on our backend infrastructure
(not only the collector itself, but the syncing of these updates back to
our archive, and storage.) And, longer term, do researchers who use
hi james
> I recall there was a conversation either here on NANOG or maybe it was
> at the IETF, within the last few years, about different NOSes that
> were / were not correctly identifying route updates received with no
> changes to the existing RIB entry, and [not] forwarding the update
> onwar
AS36183 I
> guess it is something worth looking at.
>
> Romain
>
>
> From: Geoff Huston
> Sent: Sunday, February 9, 2025 14:41
> To: [IIJ] Fontugne Romain
> Cc: NANOG
> Subject: Re: Noisy prefixes in BGP
>
> Hi Romain
>
>
> We are s
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512
Hi Romain,
I have been looking at prefixes with large numbers of updates for a few years
now. As Geoff pointed out, this is a long running problem and it’s not one that
is going to (ever?) go away.
I have auto-generated daily reports of general p
Thanks Aaron!
Romain
From: Block, Aaron
Sent: Monday, February 10, 2025 03:58
To: [IIJ] Fontugne Romain
Cc: Geoff Huston; NANOG
Subject: Re: [nanog] Noisy prefixes in BGP
Hello,
We are looking into this issue.
Thank you,
Aaron Block
---
Aaron
prefixes in BGP
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512
Hi Romain,
I have been looking at prefixes with large numbers of updates for a few years
now. As Geoff pointed out, this is a long running problem and it’s not one that
is going to (ever?) go away.
I have auto-generated daily reports
y, February 9, 2025 14:41
To: [IIJ] Fontugne Romain
Cc: NANOG
Subject: Re: Noisy prefixes in BGP
Hi Romain
We are seeing in RIS data a constant flow of update messages from a few ASes,
here is the list of the top prefixes:
┌─┬┬──┐
│
Hi Romain
>
> We are seeing in RIS data a constant flow of update messages from a few ASes,
> here is the list of the top prefixes:
>
> ┌─┬┬──┐
> │ prefix│ origin_asn │ num_announce │
> │ varchar │ varchar │int64 │
Hi,
We are seeing in RIS data a constant flow of update messages from a few ASes,
here is the list of the top prefixes:
┌─┬┬──┐
│ prefix│ origin_asn │ num_announce │
│ varchar │ varchar │int64 │
├───
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