Kudos Mike for saying it very clearly! Hank On Jun 30, 2015 12:18 AM, 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.