[194177] in North American Network Operators' Group
Re: Facebook more specific via Level3 ?
daemon@ATHENA.MIT.EDU (=?iso-8859-1?Q?J=FCrgen_Jaritsch?=)
Tue Mar 21 15:23:42 2017
X-Original-To: nanog@nanog.org
From: =?iso-8859-1?Q?J=FCrgen_Jaritsch?= <juergen@jaritsch.at>
To: <nanog@nanog.org>
Date: Tue, 21 Mar 2017 20:23:31 +0100
Errors-To: nanog-bounces@nanog.org
Hi,
> This specific, and many others, are only announced to peers in the
> metro they originate in. To receive this prefix directly you'll
> need to peer with us in Los Angeles.
the point is: Level3 is exporting this prefix to the EU since ~1 week =
=85
Telia is learning it from Level3 and they also started to re-export it:
Telia Looking Glass
(http://lg.telia.net/?query=3Dbgp&protocol=3DIPv4&addr=3D31.13.71.0/24+ex=
act&route
r=3DVienna)=20
Command: show route protocol bgp 31.13.71.36 table inet.0=20
31.13.71.0/24 *[BGP/170] 18w5d 16:40:16, MED 0, localpref 150
AS path: 3356 32934 I, validation-state: =
unverified
> to 80.239.128.178 via ae9.0
This is causing >120ms latency to Austrian (and some German ...) =
networks
towards Facebook - current traceroute from source network =
188.172.239.0/24:
Packets
Pings
Host Loss% Snt Last =
Avg
Best Wrst StDev
1. router 0.0% 4 0.5 =
0.5
0.5 0.6 0.0
2. 192.168.8.3 0.0% 4 0.6 =
0.7
0.6 0.8 0.1
3. 37.252.236.88 0.0% 4 37.3 =
34.2
30.6 37.3 2.9
4. er-03.00-09-23.anx04.vie.at.anexia-it.com 0.0% 4 21.1 =
31.9
21.1 50.9 13.3
5. cr-02.0v-08-72.anx03.vie.at.anexia-it.com 0.0% 4 23.2 =
25.9
20.4 31.6 5.1
6. win-b4-link.telia.net 0.0% 4 22.1 =
25.0
22.1 30.1 3.5
7. level-ic-1573273-wien-b4.c.telia.net 0.0% 3 22.4 =
22.3
21.1 23.3 1.1
8. ae-3-3611.edge2.dallas1.level3.net 0.0% 3 150.5 =
150.6
150.4 150.8 0.2
9. facebook-in.edge2.dallas1.level3.net 0.0% 3 156.6 =
152.9
151.0 156.6 3.2
10. po102.psw02.dft4.tfbnw.net 0.0% 3 151.4 =
151.6
151.4 152.0 0.4
11. 173.252.67.57 0.0% 3 151.6 =
152.3
151.6 153.4 0.9
12. edge-star-mini-shv-01-dft4.facebook.com 0.0% 3 159.3 =
158.4
152.5 163.6 5.6
The admins of AS42473 started to drop the more specific from Level3 and =
now
they get it from Telia (which is the Level3 re-export they learned).
I guess you guys should talk to Level3 and ask them what the hell they =
are
doing? :).
Thanks & best regards
J=FCrgen
