AT&TMPLS Issues?

Sat Dec 17 19:55:04 UTC 2005

All,

I had about 20 customer down today which connect back to me via vpn 
connectivity across the internet, but we also have a private Sprint MPLS 
conection that was down at this time. My VPN tunnels all started to come 
up at about 2:20pm today at the same time and at exactly that time my 
private Sprint MPLS connectivity came back up which was weird. Below you 
will find traceroutes that stops in Sprints address space but then after 
it all came back up the very next hop is AT&TMPLS. I then did some 
correlation and found out that all my tunnels that were down the peering 
address belongs to AT&T all were 12.x addresses. Were there some sort of 
routing issue between AT&T and Sprint between Noon and 2:30 today? I do 
not peer with AT&T or Sprint so I am sure they will not give me any info 
if I called in. But I do have a ticket open with my provider to see if 
they can get info out of them.

Incomplete
1 68.250.30.130 4 msec\par
   2 66.73.28.97 0 msec\par
   3 65.43.25.116 4 msec\par
   4 151.164.188.201 12 msec\par
   5 151.164.242.129 20 msec\par
   6 151.164.42.168 20 msec\par
   7 151.164.191.114 20 msec\par
   8 151.164.42.139 20 msec\par
   9 144.223.241.57 24 msec\par

Complete

1 68.250.30.130 0 msec\par
   2 66.73.28.97 4 msec\par
   3 65.43.25.116 0 msec\par
   4 151.164.188.201 12 msec\par
   5 151.164.242.129 180 msec\par
   6 151.164.42.168 20 msec\par
   7 151.164.191.114 20 msec\par
   8 151.164.42.139 20 msec\par
   9 144.223.241.57 20 msec\par
  10 192.205.32.141 236 msec\par
  11 AT&T[MPLS: Label 32752 Exp 0] 52 msec\par
  12 12.122.10.46 [MPLS: Label 32451 Exp 0] 52 msec\par
  13 12.122.9.141 [MPLS: Label 32326 Exp 0] 52 msec\par
  14 12.122.10.90 [MPLS: Label 32259 Exp 0] 52 msec\par
  15 12.122.9.161 [MPLS: Label 32279 Exp 0] 52 msec\par
  16 12.122.10.130 [MPLS: Label 32761 Exp 0] 52 msec\par
  17 12.122.12.150 [MPLS: Label 450 Exp 0] 56 msec\par