FYI 29791 isn't the only origin I'm seeing this on from one point of view:

AS path: 3257 6453 9498 4637

AS path: 3257 6453 9498 4637 10310 26085 14210

AS path: 3257 6453 9498 4637 20773 29066

AS path: 3257 6453 9498 4637 2906

AS path: 3257 6453 9498 4637 2906 40027

AS path: 3257 6453 9498 4637 29791

AS path: 3257 6453 9498 4637 30844

AS path: 3257 6453 9498 4637 30844 36991

AS path: 3257 6453 9498 4637 30844 38056 38056 38056

AS path: 3257 6453 9498 4637 37468 37230

AS path: 3257 6453 9498 4637 37468 37230 37230 37230

AS path: 3257 6453 9498 4637 47869

AS path: 3356 6453 9498 4637

AS path: 3356 6453 9498 4637 1299 2906

AS path: 3356 6453 9498 4637 1299 3491 20485 20485 4809 49209

AS path: 3356 6453 9498 4637 20773 29066

AS path: 3356 6453 9498 4637 2906

AS path: 3356 6453 9498 4637 29791

AS path: 3356 6453 9498 4637 30844

AS path: 3356 6453 9498 4637 30844 36991

AS path: 3356 6453 9498 4637 30844 38056 38056 38056

AS path: 3356 6453 9498 4637 37468 37230

AS path: 3356 6453 9498 4637 37468 37230 37230 37230

AS path: 3356 6453 9498 4637 47869

I'm not sure what is supposed to be there for 6453_9498 but I suspect not nearly as much as is currently present (only 4637 listed here for brevity).

On Thu, Nov 15, 2018 at 2:53 PM John Weekes <jw@nuclearfallout.net> wrote:

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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