Does physical location matter “in the cloud”?

December 17, 2014

By now everyone understands that the cloud is indeed a place on Earth, but there still seems to be confusion around why global expansion by way of adding data centers is such a big deal. After all, if data is stored “in the cloud,” why wouldn’t adding more servers in our existing data centers suffice? Well, there’s a much more significant reason for adding more data centers than just being able to host more data.

As we’ve explained in previous blog posts, Globalization and Hosting: The World Wide Web is Flat and Global Network: The Proof is in the Traceroute, our strategic objective is to get a network point of presence (PoP) within 40ms of all our users (and our users' users) in order to provide the best network stability and performance possible anywhere on the planet.

Data can travel across the Internet quickly, but just like anything, the farther something has to go, the longer it will take to get there. Seems pretty logical right? But we also need to take into account that not all routes are created equally. So to deliver the best network performance, we designed our global network to get data to the closest route possible to our network. Think of each SoftLayer PoP as an on-ramp to our global network backbone. The sooner a user is able to get onto our network, the quicker we can efficiently route them through our PoPs to a server in one of our data centers. Furthermore, once plugged into the network, we are able to control the flow of traffic.

Let’s take a look at this traceroute example from the abovementioned blog post. As you are probably aware, a traceroute shows the "hops" or routers along the network path from an origin IP to a destination IP. When we were building out the Singapore data center (before the network points of presence were turned up in Asia), the author ran a traceroute from Singapore to SoftLayer.com, and immediately after the launch of the data center, ran another one.

Pre-Launch Traceroute to SoftLayer.com from Singapore

traceroute to softlayer.com (66.228.118.53), 64 hops max, 52 byte packets
 1  10.151.60.1 (10.151.60.1)  1.884 ms  1.089 ms  1.569 ms
 2  10.151.50.11 (10.151.50.11)  2.006 ms  1.669 ms  1.753 ms
 3  119.75.13.65 (119.75.13.65)  3.380 ms  3.388 ms  4.344 ms
 4  58.185.229.69 (58.185.229.69)  3.684 ms  3.348 ms  3.919 ms
 5  165.21.255.37 (165.21.255.37)  9.002 ms  3.516 ms  4.228 ms
 6  165.21.12.4 (165.21.12.4)  3.716 ms  3.965 ms  5.663 ms
 7  203.208.190.21 (203.208.190.21)  4.442 ms  4.117 ms  4.967 ms
 8  203.208.153.241 (203.208.153.241)  6.807 ms  55.288 ms  56.211 ms
 9  so-2-0-3-0.laxow-cr1.ix.singtel.com (203.208.149.238)  187.953 ms  188.447 ms  187.809 ms
10  ge-4-0-0-0.laxow-dr2.ix.singtel.com (203.208.149.34)  184.143 ms
    ge-4-1-1-0.sngc3-dr1.ix.singtel.com (203.208.149.138)  189.510 ms
    ge-4-0-0-0.laxow-dr2.ix.singtel.com (203.208.149.34)  289.039 ms
11  203.208.171.98 (203.208.171.98)  187.645 ms  188.700 ms  187.912 ms
12  te1-6.bbr01.cs01.lax01.networklayer.com (66.109.11.42)  186.482 ms  188.265 ms  187.021 ms
13  ae7.bbr01.cs01.lax01.networklayer.com (173.192.18.166)  188.569 ms  191.100 ms  188.736 ms
14  po5.bbr01.eq01.dal01.networklayer.com (173.192.18.140)  381.645 ms  410.052 ms  420.311 ms
15  ae0.dar01.sr01.dal01.networklayer.com (173.192.18.211)  415.379 ms  415.902 ms  418.339 ms
16  po1.slr01.sr01.dal01.networklayer.com (66.228.118.138)  417.426 ms  417.301 ms
    po2.slr01.sr01.dal01.networklayer.com (66.228.118.142)  416.692 ms
17  * * *

Post-Launch Traceroute to SoftLayer.com from Singapore

traceroute to softlayer.com (66.228.118.53), 64 hops max, 52 byte packets
 1  192.168.206.1 (192.168.206.1)  2.850 ms  1.409 ms  1.206 ms
 2  174.133.118.65-static.reverse.networklayer.com (174.133.118.65)  1.550 ms  1.680 ms  1.394 ms
 3  ae4.dar01.sr03.sng01.networklayer.com (174.133.118.136)  1.812 ms  1.341 ms  1.734 ms
 4  ae9.bbr01.eq01.sng02.networklayer.com (50.97.18.198)  35.550 ms  1.999 ms  2.124 ms
 5  50.97.18.169-static.reverse.softlayer.com (50.97.18.169)  174.726 ms  175.484 ms  175.491 ms
 6  po5.bbr01.eq01.dal01.networklayer.com (173.192.18.140)  203.821 ms  203.749 ms  205.803 ms
 7  ae0.dar01.sr01.dal01.networklayer.com (173.192.18.253)  306.755 ms
    ae0.dar01.sr01.dal01.networklayer.com (173.192.18.211)  208.669 ms  203.127 ms
 8  po1.slr01.sr01.dal01.networklayer.com (66.228.118.138)  203.518 ms
    po2.slr01.sr01.dal01.networklayer.com (66.228.118.142)  305.534 ms
    po1.slr01.sr01.dal01.networklayer.com (66.228.118.138)  204.150 ms
 9  * * *

After the Singapore data center launch, the number of hops was reduced by 50 percent, and the response time (in milliseconds) was reduced by 40 percent. Those are pretty impressive numbers from just lighting up a couple PoPs and a data center, and that was just the beginning of our global expansion in 2012.

That’s why we are so excited to announce the three new data centers launching this month: Mexico City, Tokyo, and Frankfurt.



Of course, this is great news for customers who require data residency in Mexico, Japan, and Germany. And yes, these new locations provide additional in-region redundancy within APAC, EMEA, and the Americas. But even customers without servers in these new facilities have reason to celebrate: Our global network backbone is expanding, so users in these markets will see even better network stability and speed to servers in every other SoftLayer data center around the world!

-JRL

Comments

December 17th, 2014 at 11:17am

please remove char " from link because my rss reader(tiny tiny rss) failed to provide direct link to post :(

December 18th, 2014 at 5:32pm

Thanks for letting us know about the issue with the URL, Gurjinder. With previous content management systems, quotation marks were automatically stripped, but in Drupal, it looks like we have to remove them manually. In the future, we'll make sure those punctuation marks are not included.

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December 17th, 2014 at 11:17am

please remove char " from link because my rss reader(tiny tiny rss) failed to provide direct link to post :(

December 18th, 2014 at 5:32pm

Thanks for letting us know about the issue with the URL, Gurjinder. With previous content management systems, quotation marks were automatically stripped, but in Drupal, it looks like we have to remove them manually. In the future, we'll make sure those punctuation marks are not included.

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