Tata (AS6453) problems in Dallas

[Tore Anderson]

Hi,

Tata appears to be blackholing traffic at their Equinix Dallas PoP,
see below. It's been six hours since I notified them using the
e-mail address found in whois, still no reply and the problem is
still there. Is IPv6 only a «best effort» service for them?

Is there anyone on this list who has contacts in Tata, or who is
their customer, and is able to help out get this issue looked at?

This issue affects users of the gogonet6 tunnel service, at least.

Tore

-------- Opprinnelig melding --------
Emne: IPv6 problems in Equinix Dallas
Dato: Sun, 06 Mar 2011 11:09:02 +0100
Fra: Tore Anderson <tore.anderson at redpill-linpro.com>
Organisasjon: Redpill Linpro AS
Til: ipcustomer.service at tatacommunications.com

Good morning,

It appears to be problems with your IPv6 connectivity to multiple
destinations out of your Equinix Dallas PoP. It affects traffic to
Global Crossing and Cogent, perhaps others too. Your «icore1» router
is generating ICMP Unreachables, it seems. Could you please look
into this as soon as possible?

>From your looking glass:

1) www.heise.de (via Global Crossing):
======================================

Router: gin-dtx-core1
Site: US, Dallas - DTX - EQUINIX
Command: show bgp ipv6 unicast 2a02:2e0::/32


BGP routing table entry for 2A02:2E0::/32
Bestpath Modifiers: deterministic-med
Paths: (16 available, best #11, table Global-IPv6-Table)
Multipath: eBGP
     8         
[...]
  3549 12306
    c.6.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.0.0.a.5.0.1.0.0.2.ip6.arpa domain name pointer core2.DTX-Dallas.ipv6.
dtx-core2.ipv6. (metric 7) from c.6.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.0.0.a.5.0.1.0.0.2.ip6.arpa domain name pointer core2.DTX-Dallas.ipv6.
dtx-core2.ipv6. (66.110.0.94)
      Origin IGP, valid, internal, best
      Community: Peer route North America Central South Dallas Equinix (DTX)

-------

Router: gin-dtx-core1
Site: US, Dallas - DTX - EQUINIX
Command: traceroute ipv6 www.heise.de


Tracing the route to www.heise.de (2A02:2E0:3FE:100::7)

  1 Vlan40.icore1.DTX-Dallas.ipv6.as6453.net (2001:5A0:2E00:500::5) 4 msec 4 msec 0 msec
  2 Vlan40.icore1.DTX-Dallas.ipv6.as6453.net (2001:5A0:2E00:500::5) !U  !U  !U 

2) cogentco.com
===============


Router: gin-mtt-mcore3
Site: CA, Montreal - MTT, TATA COMM. INT. CENTER
Command: show bgp ipv6 unicast 2001:550::/32


BGP routing table entry for 2001:550::/32
Bestpath Modifiers: deterministic-med
Paths: (3 available, best #3, table Global-IPv6-Table)
[...]
  174
    b.6.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.0.0.a.5.0.1.0.0.2.ip6.arpa domain name pointer core1.DTX-Dallas.ipv6.
dtx-core1.ipv6. (metric 106) from 4.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.0.0.a.5.0.1.0.0.2.ip6.arpa domain name pointer mcore3.NJY-Newark.ipv6.
njy-mcore3.ipv6. (66.110.0.82)
      Origin IGP, valid, internal, best
      Community: Peer route North America Central South Dallas Equinix (DTX)
      Originator: dtx-core1.

-------

Router: gin-mtt-mcore3
Site: CA, Montreal - MTT, TATA COMM. INT. CENTER
Command: traceroute ipv6 cogentco.com


Tracing the route to cogentco.com (2001:550:1::CC01)

  1 if-13-0-0.851.mcore3.TTT-Scarborough.ipv6.as6453.net (2001:5A0:300:100::E) 8 msec 12 msec 8 msec
  2 if-7-1-0.831.core1.CT8-Chicago.ipv6.as6453.net (2001:5A0:1100::12) 144 msec 216 msec 208 msec
  3 if-5-0-0.1167.core2.DTX-Dallas.ipv6.as6453.net (2001:5A0:1100:100::4E) 108 msec 52 msec 52 msec
  4 Vlan6.icore2.DTX-Dallas.ipv6.as6453.net (2001:5A0:2E00:500::D) 52 msec 52 msec 52 msec
  5 Vlan1714.icore1.DTX-Dallas.ipv6.as6453.net (2001:5A0:2E00::6) 56 msec 52 msec 52 msec
  6 Vlan1714.icore1.DTX-Dallas.ipv6.as6453.net (2001:5A0:2E00::6) !U  !U  !U 

Thanks in advance,
-- 
Tore Anderson
Redpill Linpro AS - http://www.redpill-linpro.com/
Tel: +47 21 54 41 27