Re: Tata Scenic routing in LAX area?

[John Weekes <jw () nuclearfallout net>]

Marcus,

From route-views output, it looks like AS9498/airtel is probably 
leaking your route between two of its upstreams (AS6453/Tata and 
AS4637/Telstra) overseas, funneling some of your traffic through their 
router.

route-views>sh ip bgp 23.92.178.22 | i 9498
  3356 6453 9498 4637 29791
  1403 6453 9498 4637 29791
  3549 3356 6453 9498 4637 29791
  19214 3257 6453 9498 4637 29791
  1403 6453 9498 4637 29791
  286 6453 9498 4637 29791
  53364 3257 6453 9498 4637 29791
  3257 6453 9498 4637 29791
  1239 6453 9498 4637 29791
  2497 6453 9498 4637 29791
  57866 6453 9498 4637 29791
  7660 2516 6453 9498 4637 29791
  701 6453 9498 4637 29791
  3561 209 6453 9498 4637 29791

You might try halting advertisements to your AS4637/Telstra peer while 
you contact AS9498.

-John

On 11/15/2018 10:43 AM, Marcus Josephson wrote:
> Anyone else seeing an odd Scenic routing in the LAX/SJE area for tata.
>
> traceroute to 23.92.178.22 (23.92.178.22), 30 hops max, 52 byte packets
>
> 1  if-ae-13-2.tcore2.lvw-los-angeles.as6453.net (64.86.252.34)  
> 180.698 ms  180.610 ms  181.712 ms
>
>      MPLS Label=344269 CoS=0 TTL=1 S=1
>
> 2  if-ae-7-2.tcore2.svw-singapore.as6453.net (180.87.15.25)  189.327 
> ms if-ae-7-2.tcore2.svw-singapore.as6453.net (64.86.252.37) 176.800 ms 
> if-ae-7-2.tcore2.svw-singapore.as6453.net (64.86.252.39)  174.631 ms
>
>      MPLS Label=609315 CoS=0 TTL=1 S=1
>
> 3  if-ae-20-2.tcore1.svq-singapore.as6453.net (180.87.96.21)  174.287 
> ms  173.370 ms  173.804 ms
>
> 4  120.29.215.202 (120.29.215.202)  179.104 ms 179.367 ms  179.324 ms
>
> 5  182.79.152.247 (182.79.152.247)  180.164 ms 182.79.152.253 
> (182.79.152.253)  184.816 ms 182.79.152.247 (182.79.152.247)  250.928 ms
>
> 6  unknown.telstraglobal.net (202.127.73.101) [AS  4637]  173.974 ms  
> 173.986 ms  173.484 ms
>
> 7  i-93.sgpl-core02.telstraglobal.net (202.84.224.189) [AS  4637]  
> 175.094 ms  175.699 ms 174.343 ms
>
> 8  i-10850.eqnx-core02.telstraglobal.net (202.84.140.46) [AS  4637]  
> 280.686 ms  288.703 ms 280.836 ms
>
> 9  i-92.eqnx03.telstraglobal.net (202.84.247.17) [AS  4637]  278.021 
> ms  276.637 ms 302.249 ms
>
> 10  equinix-ix.sjc1.us.voxel.net (206.223.116.4)  174.139 ms  174.163 
> ms  174.067 ms
>
> Marcus Josephson
>
> IP Operations
>
> mjosephson () inap com
>
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