nanog mailing list archives

Re: NTT->HE earlier today (~10am EDT)


From: Faisal Imtiaz <faisal () snappytelecom net>
Date: Tue, 30 Jun 2015 03:24:02 +0000 (GMT)

Hi Jared,

This is neat !, for someone who recently started working the IRR's, I can tell you that it has been very difficult 
finding all info in one location. 

What you shared is pretty neat !, and I would like to clean up the records associated with our prefixes.

Can you suggest some practical tips on getting older 'stale' records cleaned up from the different registries ?
(i.e. records created for us by others, in a former time-frame).

Regards

Faisal Imtiaz
Snappy Internet & Telecom

----- Original Message -----
From: "Jared Mauch" <jared () puck nether net>
To: "Mike Leber" <mleber () he net>
Cc: nanog () nanog org
Sent: Monday, June 29, 2015 5:51:18 PM
Subject: Re: NTT->HE earlier today (~10am EDT)

Greetings,

We are aware of this issue and as is usual we filter customers based on their
registered routes.  This creates some unique challenges that we have been
speaking about publicly and privately with various groups.

I have started the process (yay telco-speak) to fix this.

It would be helpful if networks would take a look at what routes they have
registered in the various IRRs as well as if their AS-SETs expand out to
something quite large.  We have seen many customers import objects that then
import their other upstream networks.

We have found the IRR Explorer tool helpful to look at who has registered our
IP space and to police these registrations with the various IRRs out there.
http://irrexplorer.nlnog.net/

http://irrexplorer.nlnog.net/prefix/184.105.213.86

The stability of the routing ecosystem is something that I personally care a
lot about and have privately given Mike and others my cell number to allow
them to follow-up.  As is often operators end up chasing problems after the
fact, and this appears to be no exception.  *sigh*

- Jared

On Jun 29, 2015, at 5:18 PM, Mike Leber <mleber () he net> wrote:

NTT's customer Sofia Connect leaked our routes to NTT.  NTT accepted these
routes instead of properly filtering their customer announcements.  As a
network of non-trivial size, announcing over 75,000 customer routes which
is nearly 15% of the IPv4 routing table, we'd expect the common courtesy
of having our ASN included in their customer facing AS-PATH filters, as we
extend this same courtesy to other networks of this size (such as AS2914).

Mike.

On 6/29/15 2:04 PM, Jim Popovitch wrote:
Hello,

I haven't seen anything to explain this, so I'm asking a larger
audience.  Did anyone notice any unusual NTT or HE routing this AM?

Here's what I saw:


  2.|-- xe-0-1-0-17.r04.atlnga05.us.bb.gin.ntt.net  0.0%    20    0.8
0.7   0.6   0.9   0.1
  3.|-- ae-2.r20.atlnga05.us.bb.gin.ntt.net         0.0%    20    4.6
6.2   0.5  13.6   4.8
  4.|-- ae-4.r22.asbnva02.us.bb.gin.ntt.net         0.0%    20   15.3
15.0 13.9 15.8 0.7
  5.|-- ae-4.r20.frnkge04.de.bb.gin.ntt.net         0.0%    20  127.3
106.7  98.5 127.3  11.1
  6.|-- ae-2.r02.frnkge04.de.bb.gin.ntt.net         0.0%    20  126.8
126.0 125.7 126.8   0.2
  7.|-- ae-1.r00.sofibu01.bg.bb.gin.ntt.net         0.0%    20  131.1
130.0 128.7 131.4   1.2
  8.|-- 83.217.227.42                              80.0%    20  148.5
146.0 144.2 148.5   2.0
  9.|-- ip-48-93.sofia-connect.net                 90.0%    20  184.5
163.8 143.1 184.5  29.3
 10.|-- ???                                        100.0    20    0.0
0.0   0.0   0.0   0.0
 11.|-- 10ge5-4.core1.vie1.he.net                  75.0%    20  160.7
150.4 143.9 160.7   6.3
 12.|-- 10ge1-4.core1.prg1.he.net                  80.0%    20  158.4
159.5 157.9 161.1   1.6
 13.|-- 10ge10-12.core1.fra1.he.net                75.0%    20  154.5
159.2 145.9 174.4  10.7
 14.|-- 100ge5-2.core1.par2.he.net                 75.0%    20  187.9
172.9 157.1 187.9  11.1
 15.|-- 100ge7-1.core1.nyc4.he.net                 78.9%    19  147.2
146.2 144.6 147.5   1.4
 16.|-- 100ge7-2.core1.chi1.he.net                 78.9%    19  165.6
172.1 165.6 183.5   8.0
 17.|-- 10ge15-2.core1.den1.he.net                 89.5%    19  201.3
204.7 201.3 208.1   4.8


-Jim P.




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