Connectivity problems between US and India
We've been seeing a lot of customers call in with reports of slow access to their servers in the US. Traceroutes back to them all yield round-trip times of 300ms once the connection gets across the ocean. Anyone have any leads on a root cause? 4. 12.87.122.245 0% 9 9 9 9 10 11 5. cr2.hs1tx.ip.att.net 0% 9 9 46 46 46 46 6. cr1.dlstx.ip.att.net 0% 9 9 47 46 47 47 7. cr2.dlstx.ip.att.net 0% 9 9 47 46 47 47 8. cr2.la2ca.ip.att.net 0% 9 9 46 45 46 46 9. gar4.lsrca.ip.att.net 0% 9 9 47 47 47 48 10. 12.86.240.10 0% 9 9 46 45 46 49 11. segment-124-7.sify.net 0% 8 9 269 268 269 269 12. segment-119-227.sify.net 0% 8 9 268 267 268 271 13. segment-119-227.sify.net 0% 8 8 269 267 268 271 14. segment-119-227.sify.net 0% 8 8 270 269 271 274 15. segment-119-227.sify.net 0% 8 8 270 268 270 276 16. segment-119-227.sify.net 0% 8 8 271 269 270 271 17. 210.18.13.233.sify.net 0% 8 8 268 268 268 269 18. segment-124-30.sify.net 0% 8 8 294 284 292 299 4. 12.87.122.245 0% 11 11 10 9 10 11 5. cr2.hs1tx.ip.att.net 0% 11 11 16 16 16 17 6. cr1.dlstx.ip.att.net 0% 11 11 16 16 16 17 7. ggr7.dlstx.ip.att.net 0% 11 11 170 15 56 170 8. 192.205.36.42 0% 11 11 15 15 22 75 9. customer-side-bharti-4-pal6.pal.seabone.net 0% 10 11 286 286 287 287 10. 125.21.167.114 0% 10 10 285 285 285 285 11. 61.95.240.130 0% 10 10 283 283 283 286 12. abts-tn-static-248.253.246.61.airtelbroadband.in 0% 10 10 290 287 290 294
We've had a lot of reports of the same. 40+% packet loss from different providers in India, with no one specific transit/hand-off showing to be the problem. -------------------------------------------------------------------------------- Tom Sands Chief Network Engineer Rackspace (210)312-4391 -------------------------------------------------------------------------------- Carl Perry wrote:
We've been seeing a lot of customers call in with reports of slow access to their servers in the US. Traceroutes back to them all yield round-trip times of 300ms once the connection gets across the ocean. Anyone have any leads on a root cause?
4. 12.87.122.245 0% 9 9 9 9 10 11 5. cr2.hs1tx.ip.att.net 0% 9 9 46 46 46 46 6. cr1.dlstx.ip.att.net 0% 9 9 47 46 47 47 7. cr2.dlstx.ip.att.net 0% 9 9 47 46 47 47 8. cr2.la2ca.ip.att.net 0% 9 9 46 45 46 46 9. gar4.lsrca.ip.att.net 0% 9 9 47 47 47 48 10. 12.86.240.10 0% 9 9 46 45 46 49 11. segment-124-7.sify.net 0% 8 9 269 268 269 269 12. segment-119-227.sify.net 0% 8 9 268 267 268 271 13. segment-119-227.sify.net 0% 8 8 269 267 268 271 14. segment-119-227.sify.net 0% 8 8 270 269 271 274 15. segment-119-227.sify.net 0% 8 8 270 268 270 276 16. segment-119-227.sify.net 0% 8 8 271 269 270 271 17. 210.18.13.233.sify.net 0% 8 8 268 268 268 269 18. segment-124-30.sify.net 0% 8 8 294 284 292 299
4. 12.87.122.245 0% 11 11 10 9 10 11 5. cr2.hs1tx.ip.att.net 0% 11 11 16 16 16 17 6. cr1.dlstx.ip.att.net 0% 11 11 16 16 16 17 7. ggr7.dlstx.ip.att.net 0% 11 11 170 15 56 170 8. 192.205.36.42 0% 11 11 15 15 22 75 9. customer-side-bharti-4-pal6.pal.seabone.net 0% 10 11 286 286 287 287 10. 125.21.167.114 0% 10 10 285 285 285 285 11. 61.95.240.130 0% 10 10 283 283 283 286 12. abts-tn-static-248.253.246.61.airtelbroadband.in 0% 10 10 290 287 290 294
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300ms is normal when you hit cross Atlantic. At least ever since I have had a net connection -- Satish Alwani "Tom Sands" <tsands@rackspace.com> wrote:
We've had a lot of reports of the same. 40+% packet loss from different providers in India, with no one specific transit/hand-off showing to be the problem.
-------------------------------------------------------------------------------- Tom Sands Chief Network Engineer Rackspace (210)312-4391 --------------------------------------------------------------------------------
Carl Perry wrote:
We've been seeing a lot of customers call in with reports of slow access to their servers in the US. Traceroutes back to them all yield round-trip times of 300ms once the connection gets across the ocean. Anyone have any leads on a root cause?
4. 12.87.122.245 0% 9 9 9 9 10 11 5. cr2.hs1tx.ip.att.net 0% 9 9 46 46 46 46 6. cr1.dlstx.ip.att.net 0% 9 9 47 46 47 47 7. cr2.dlstx.ip.att.net 0% 9 9 47 46 47 47 8. cr2.la2ca.ip.att.net 0% 9 9 46 45 46 46 9. gar4.lsrca.ip.att.net 0% 9 9 47 47 47 48 10. 12.86.240.10 0% 9 9 46 45 46 49 11. segment-124-7.sify.net 0% 8 9 269 268 269 269 12. segment-119-227.sify.net 0% 8 9 268 267 268 271 13. segment-119-227.sify.net 0% 8 8 269 267 268 271 14. segment-119-227.sify.net 0% 8 8 270 269 271 274 15. segment-119-227.sify.net 0% 8 8 270 268 270 276 16. segment-119-227.sify.net 0% 8 8 271 269 270 271 17. 210.18.13.233.sify.net 0% 8 8 268 268 268 269 18. segment-124-30.sify.net 0% 8 8 294 284 292 299
4. 12.87.122.245 0% 11 11 10 9 10 11 5. cr2.hs1tx.ip.att.net 0% 11 11 16 16 16 17 6. cr1.dlstx.ip.att.net 0% 11 11 16 16 16 17 7. ggr7.dlstx.ip.att.net 0% 11 11 170 15 56 170 8. 192.205.36.42 0% 11 11 15 15 22 75 9. customer-side-bharti-4-pal6.pal.seabone.net 0% 10 11 286 286 287 287 10. 125.21.167.114 0% 10 10 285 285 285 285 11. 61.95.240.130 0% 10 10 283 283 283 286 12. abts-tn-static-248.253.246.61.airtelbroadband.in 0% 10 10 290 287 290 294
Confidentiality Notice: This e-mail message (including any attached or embedded documents) is intended for the exclusive and confidential use of the individual or entity to which this message is addressed, and unless otherwise expressly indicated, is confidential and privileged information of Rackspace. Any dissemination, distribution or copying of the enclosed material is prohibited. If you receive this transmission in error, please notify us immediately by e-mail at abuse@rackspace.com, and delete the original message. Your cooperation is appreciated.
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I concur, but to UK shouldn't be @ 300ms.. @sparksjls Sent from my Verizon Wireless BlackBerry -----Original Message----- From: Satish Alwani <assid@assid.com> Date: Fri, 19 Feb 2010 20:05:58 To: Tom Sands<tsands@rackspace.com>; Carl Perry<caperry@edolnx.net> Cc: outages@outages.org<outages@outages.org> Subject: Re: [outages] Connectivity problems between US and India 300ms is normal when you hit cross Atlantic. At least ever since I have had a net connection -- Satish Alwani "Tom Sands" <tsands@rackspace.com> wrote:
We've had a lot of reports of the same. 40+% packet loss from different providers in India, with no one specific transit/hand-off showing to be the problem.
-------------------------------------------------------------------------------- Tom Sands Chief Network Engineer Rackspace (210)312-4391 --------------------------------------------------------------------------------
Carl Perry wrote:
We've been seeing a lot of customers call in with reports of slow access to their servers in the US. Traceroutes back to them all yield round-trip times of 300ms once the connection gets across the ocean. Anyone have any leads on a root cause?
4. 12.87.122.245 0% 9 9 9 9 10 11 5. cr2.hs1tx.ip.att.net 0% 9 9 46 46 46 46 6. cr1.dlstx.ip.att.net 0% 9 9 47 46 47 47 7. cr2.dlstx.ip.att.net 0% 9 9 47 46 47 47 8. cr2.la2ca.ip.att.net 0% 9 9 46 45 46 46 9. gar4.lsrca.ip.att.net 0% 9 9 47 47 47 48 10. 12.86.240.10 0% 9 9 46 45 46 49 11. segment-124-7.sify.net 0% 8 9 269 268 269 269 12. segment-119-227.sify.net 0% 8 9 268 267 268 271 13. segment-119-227.sify.net 0% 8 8 269 267 268 271 14. segment-119-227.sify.net 0% 8 8 270 269 271 274 15. segment-119-227.sify.net 0% 8 8 270 268 270 276 16. segment-119-227.sify.net 0% 8 8 271 269 270 271 17. 210.18.13.233.sify.net 0% 8 8 268 268 268 269 18. segment-124-30.sify.net 0% 8 8 294 284 292 299
4. 12.87.122.245 0% 11 11 10 9 10 11 5. cr2.hs1tx.ip.att.net 0% 11 11 16 16 16 17 6. cr1.dlstx.ip.att.net 0% 11 11 16 16 16 17 7. ggr7.dlstx.ip.att.net 0% 11 11 170 15 56 170 8. 192.205.36.42 0% 11 11 15 15 22 75 9. customer-side-bharti-4-pal6.pal.seabone.net 0% 10 11 286 286 287 287 10. 125.21.167.114 0% 10 10 285 285 285 285 11. 61.95.240.130 0% 10 10 283 283 283 286 12. abts-tn-static-248.253.246.61.airtelbroadband.in 0% 10 10 290 287 290 294
Confidentiality Notice: This e-mail message (including any attached or embedded documents) is intended for the exclusive and confidential use of the individual or entity to which this message is addressed, and unless otherwise expressly indicated, is confidential and privileged information of Rackspace. Any dissemination, distribution or copying of the enclosed material is prohibited. If you receive this transmission in error, please notify us immediately by e-mail at abuse@rackspace.com, and delete the original message. Your cooperation is appreciated.
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LA-London should be around the 170ms mark FWIW -- Martin Hepworth Oxford, UK On 19 February 2010 14:47, Jason L. Sparks <jlsparks@gmail.com> wrote:
I concur, but to UK shouldn't be @ 300ms.. @sparksjls Sent from my Verizon Wireless BlackBerry
-----Original Message----- From: Satish Alwani <assid@assid.com> Date: Fri, 19 Feb 2010 20:05:58 To: Tom Sands<tsands@rackspace.com>; Carl Perry<caperry@edolnx.net> Cc: outages@outages.org<outages@outages.org> Subject: Re: [outages] Connectivity problems between US and India
300ms is normal when you hit cross Atlantic. At least ever since I have had a net connection
-- Satish Alwani
"Tom Sands" <tsands@rackspace.com> wrote:
We've had a lot of reports of the same. 40+% packet loss from different providers in India, with no one specific transit/hand-off showing to be the problem.
-------------------------------------------------------------------------------- Tom Sands Chief Network Engineer Rackspace (210)312-4391
--------------------------------------------------------------------------------
Carl Perry wrote:
We've been seeing a lot of customers call in with reports of slow access to their servers in the US. Traceroutes back to them all yield round-trip times of 300ms once the connection gets across the ocean. Anyone have any leads on a root cause?
4. 12.87.122.245 0% 9 9 9 9 10 11 5. cr2.hs1tx.ip.att.net 0% 9 9 46 46 46 46 6. cr1.dlstx.ip.att.net 0% 9 9 47 46 47 47 7. cr2.dlstx.ip.att.net 0% 9 9 47 46 47 47 8. cr2.la2ca.ip.att.net 0% 9 9 46 45 46 46 9. gar4.lsrca.ip.att.net 0% 9 9 47 47 47 48 10. 12.86.240.10 0% 9 9 46 45 46 49 11. segment-124-7.sify.net 0% 8 9 269 268 269 269 12. segment-119-227.sify.net 0% 8 9 268 267 268 271 13. segment-119-227.sify.net 0% 8 8 269 267 268 271 14. segment-119-227.sify.net 0% 8 8 270 269 271 274 15. segment-119-227.sify.net 0% 8 8 270 268 270 276 16. segment-119-227.sify.net 0% 8 8 271 269 270 271 17. 210.18.13.233.sify.net 0% 8 8 268 268 268 269 18. segment-124-30.sify.net 0% 8 8 294 284 292 299
4. 12.87.122.245 0% 11 11 10 9 10 11 5. cr2.hs1tx.ip.att.net 0% 11 11 16 16 16 17 6. cr1.dlstx.ip.att.net 0% 11 11 16 16 16 17 7. ggr7.dlstx.ip.att.net 0% 11 11 170 15 56 170 8. 192.205.36.42 0% 11 11 15 15 22 75 9. customer-side-bharti-4-pal6.pal.seabone.net 0% 10 11 286 286 287 287 10. 125.21.167.114 0% 10 10 285 285 285 285 11. 61.95.240.130 0% 10 10 283 283 283 286 12. abts-tn-static-248.253.246.61.airtelbroadband.in 0% 10 10 290 287 290 294
Confidentiality Notice: This e-mail message (including any attached or embedded documents) is intended for the exclusive and confidential use of the individual or entity to which this message is addressed, and unless otherwise expressly indicated, is confidential and privileged information of Rackspace. Any dissemination, distribution or copying of the enclosed material is prohibited. If you receive this transmission in error, please notify us immediately by e-mail at abuse@rackspace.com, and delete the original message. Your cooperation is appreciated.
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participants (5)
-
Carl Perry -
Jason L. Sparks -
Martin Hepworth -
Satish Alwani -
Tom Sands