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	<title>Comments on: RightScale supports the new Amazon EC2 Elastic IP addresses and availability zones</title>
	<atom:link href="http://blog.rightscale.com/2008/03/26/rightscale-supports-the-new-amazon-ec2-elastic-ip-addresses-and-availability-zones/feed/" rel="self" type="application/rss+xml" />
	<link>http://blog.rightscale.com/2008/03/26/rightscale-supports-the-new-amazon-ec2-elastic-ip-addresses-and-availability-zones/</link>
	<description>Cloud Computing. Delivered.</description>
	<lastBuildDate>Wed, 10 Mar 2010 00:07:18 +0000</lastBuildDate>
	<generator>http://wordpress.com/</generator>
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		<title>By: Thorsten</title>
		<link>http://blog.rightscale.com/2008/03/26/rightscale-supports-the-new-amazon-ec2-elastic-ip-addresses-and-availability-zones/#comment-1184</link>
		<dc:creator>Thorsten</dc:creator>
		<pubDate>Mon, 27 Jul 2009 18:26:16 +0000</pubDate>
		<guid isPermaLink="false">http://rightscale.wordpress.com/?p=46#comment-1184</guid>
		<description>Sudi, you are correct that you&#039;re getting a lot of internet bandwidth potential with each EC2 instance. The pipes between EC2 and the net are very fat, so you can easily burst up to the full capability of each instance without prior arrangements.</description>
		<content:encoded><![CDATA[<p>Sudi, you are correct that you&#8217;re getting a lot of internet bandwidth potential with each EC2 instance. The pipes between EC2 and the net are very fat, so you can easily burst up to the full capability of each instance without prior arrangements.</p>
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		<title>By: Sudi</title>
		<link>http://blog.rightscale.com/2008/03/26/rightscale-supports-the-new-amazon-ec2-elastic-ip-addresses-and-availability-zones/#comment-1178</link>
		<dc:creator>Sudi</dc:creator>
		<pubDate>Thu, 23 Jul 2009 04:31:33 +0000</pubDate>
		<guid isPermaLink="false">http://rightscale.wordpress.com/?p=46#comment-1178</guid>
		<description>How is  data ( user files) moved ?
I have seen some blistering download rates from Ashburn Va to Denver at approx 11M/s. Is the traffic moved through the Net or some other method ?
Any assistance is greatly appreciated.</description>
		<content:encoded><![CDATA[<p>How is  data ( user files) moved ?<br />
I have seen some blistering download rates from Ashburn Va to Denver at approx 11M/s. Is the traffic moved through the Net or some other method ?<br />
Any assistance is greatly appreciated.</p>
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	<item>
		<title>By: Babble On &#187; Blog Archive &#187; Babble On EC2</title>
		<link>http://blog.rightscale.com/2008/03/26/rightscale-supports-the-new-amazon-ec2-elastic-ip-addresses-and-availability-zones/#comment-263</link>
		<dc:creator>Babble On &#187; Blog Archive &#187; Babble On EC2</dc:creator>
		<pubDate>Sun, 01 Jun 2008 08:09:56 +0000</pubDate>
		<guid isPermaLink="false">http://rightscale.wordpress.com/?p=46#comment-263</guid>
		<description>[...] Elastic IPs, which have now been around for a few months, completely solve the problem of not having a static IP address. Having been an avid follower of the latest AWS developments, it was the announcement of Elastic IPs in particular that started me thinking about moving my hosting to EC2. [...]</description>
		<content:encoded><![CDATA[<p>[...] Elastic IPs, which have now been around for a few months, completely solve the problem of not having a static IP address. Having been an avid follower of the latest AWS developments, it was the announcement of Elastic IPs in particular that started me thinking about moving my hosting to EC2. [...]</p>
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		<title>By: TvE</title>
		<link>http://blog.rightscale.com/2008/03/26/rightscale-supports-the-new-amazon-ec2-elastic-ip-addresses-and-availability-zones/#comment-54</link>
		<dc:creator>TvE</dc:creator>
		<pubDate>Wed, 02 Apr 2008 04:39:29 +0000</pubDate>
		<guid isPermaLink="false">http://rightscale.wordpress.com/?p=46#comment-54</guid>
		<description>Ian, we have not dealt with the new kernels in terms of images, we&#039;re still testing stuff. We&#039;ll make the scripts available as soon as we have something. The new tools should install automatically at boot time, so I&#039;m not sure what the problem is. We focused on adding the support to the RightScale Dashboard (web site) so you can launch servers with the new features.</description>
		<content:encoded><![CDATA[<p>Ian, we have not dealt with the new kernels in terms of images, we&#8217;re still testing stuff. We&#8217;ll make the scripts available as soon as we have something. The new tools should install automatically at boot time, so I&#8217;m not sure what the problem is. We focused on adding the support to the RightScale Dashboard (web site) so you can launch servers with the new features.</p>
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		<title>By: Wing</title>
		<link>http://blog.rightscale.com/2008/03/26/rightscale-supports-the-new-amazon-ec2-elastic-ip-addresses-and-availability-zones/#comment-53</link>
		<dc:creator>Wing</dc:creator>
		<pubDate>Wed, 02 Apr 2008 04:27:15 +0000</pubDate>
		<guid isPermaLink="false">http://rightscale.wordpress.com/?p=46#comment-53</guid>
		<description>I second Ian, any chance that you will be releasing the scripts to build rightimages from scratch based on the new AKI&#039;s?</description>
		<content:encoded><![CDATA[<p>I second Ian, any chance that you will be releasing the scripts to build rightimages from scratch based on the new AKI&#8217;s?</p>
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		<title>By: Ian</title>
		<link>http://blog.rightscale.com/2008/03/26/rightscale-supports-the-new-amazon-ec2-elastic-ip-addresses-and-availability-zones/#comment-48</link>
		<dc:creator>Ian</dc:creator>
		<pubDate>Mon, 31 Mar 2008 21:04:54 +0000</pubDate>
		<guid isPermaLink="false">http://rightscale.wordpress.com/?p=46#comment-48</guid>
		<description>Did I overlook this? RightImage CentOS5_0_X86_64_V2_0 with the newness? Wish request: Make your dashboard wap friendly for Blackberry&#039;s and you&#039;ll rule.</description>
		<content:encoded><![CDATA[<p>Did I overlook this? RightImage CentOS5_0_X86_64_V2_0 with the newness? Wish request: Make your dashboard wap friendly for Blackberry&#8217;s and you&#8217;ll rule.</p>
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		<title>By: Ian</title>
		<link>http://blog.rightscale.com/2008/03/26/rightscale-supports-the-new-amazon-ec2-elastic-ip-addresses-and-availability-zones/#comment-47</link>
		<dc:creator>Ian</dc:creator>
		<pubDate>Mon, 31 Mar 2008 20:58:51 +0000</pubDate>
		<guid isPermaLink="false">http://rightscale.wordpress.com/?p=46#comment-47</guid>
		<description>Uhh, does this mean you have a new public CentOS5 image you that supports this because the current one I&#039;m using craps out with the new ec2 tools and won&#039;t launch with the latest 64bit kernel (--kernel aki-9800e5f1).</description>
		<content:encoded><![CDATA[<p>Uhh, does this mean you have a new public CentOS5 image you that supports this because the current one I&#8217;m using craps out with the new ec2 tools and won&#8217;t launch with the latest 64bit kernel (&#8211;kernel aki-9800e5f1).</p>
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		<title>By: Blog bookmarks 03/29/2008 &#171; My Diigo bookmarks</title>
		<link>http://blog.rightscale.com/2008/03/26/rightscale-supports-the-new-amazon-ec2-elastic-ip-addresses-and-availability-zones/#comment-41</link>
		<dc:creator>Blog bookmarks 03/29/2008 &#171; My Diigo bookmarks</dc:creator>
		<pubDate>Sat, 29 Mar 2008 05:52:11 +0000</pubDate>
		<guid isPermaLink="false">http://rightscale.wordpress.com/?p=46#comment-41</guid>
		<description>[...] Blog bookmarks&#160;03/29/2008  RightScale supports the new Amazon EC2 Elastic IP addresses and availability zones « RightScale Blo... [...]</description>
		<content:encoded><![CDATA[<p>[...] Blog bookmarks&nbsp;03/29/2008  RightScale supports the new Amazon EC2 Elastic IP addresses and availability zones « RightScale Blo&#8230; [...]</p>
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		<title>By: TvE</title>
		<link>http://blog.rightscale.com/2008/03/26/rightscale-supports-the-new-amazon-ec2-elastic-ip-addresses-and-availability-zones/#comment-40</link>
		<dc:creator>TvE</dc:creator>
		<pubDate>Fri, 28 Mar 2008 22:07:25 +0000</pubDate>
		<guid isPermaLink="false">http://rightscale.wordpress.com/?p=46#comment-40</guid>
		<description>CBAss: you have a very good point, but I think you&#039;re oversimplifying also. I&#039;ll double-check with the Amazon folks, but as far as I know the &quot;core routing infrastructure&quot; is fault-tolerant within a region. If you look carefully at the NAT done by Amazon, it&#039;s stateless. This means that packets can come in &amp; out multiple entry points. So if one availability zone goes down, there is some interesting stuff happening such that packets for your IPs can enter through other transit points into the region and go to a server in a different zone than previously. Even without the routing challenges, it&#039;s actually not so easy to keep such regional routing infrastructure failure isolated. It&#039;s pretty easy to set-up, but on a daily basis it&#039;s so easy to slip in innocent looking changes that compromise the isolation. At least that has been my experience as well as that of others. Thanks for the comment!</description>
		<content:encoded><![CDATA[<p>CBAss: you have a very good point, but I think you&#8217;re oversimplifying also. I&#8217;ll double-check with the Amazon folks, but as far as I know the &#8220;core routing infrastructure&#8221; is fault-tolerant within a region. If you look carefully at the NAT done by Amazon, it&#8217;s stateless. This means that packets can come in &amp; out multiple entry points. So if one availability zone goes down, there is some interesting stuff happening such that packets for your IPs can enter through other transit points into the region and go to a server in a different zone than previously. Even without the routing challenges, it&#8217;s actually not so easy to keep such regional routing infrastructure failure isolated. It&#8217;s pretty easy to set-up, but on a daily basis it&#8217;s so easy to slip in innocent looking changes that compromise the isolation. At least that has been my experience as well as that of others. Thanks for the comment!</p>
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		<title>By: CBass</title>
		<link>http://blog.rightscale.com/2008/03/26/rightscale-supports-the-new-amazon-ec2-elastic-ip-addresses-and-availability-zones/#comment-38</link>
		<dc:creator>CBass</dc:creator>
		<pubDate>Fri, 28 Mar 2008 19:16:37 +0000</pubDate>
		<guid isPermaLink="false">http://rightscale.wordpress.com/?p=46#comment-38</guid>
		<description>&quot;From the outside this may seem straightforward, but in reality the degree of engineering that is necessary to support this type of technical feature is quite staggering. Even if you had servers in multiple co-location facilities it is not easy to make the colos independent of one another. If they are close-by physically they may well share regional internet routes.&quot;

You&#039;re right, rerouting individual IPs at the carrier/transit level to different geographic locations would be an amazing feat. Too bad Amazon&#039;s not doing that. You can only remap IPs to zones within a single region...

&quot;Elastic IPs are only remappable to instances in the same region.   Currently, Amazon EC2 exposes only a single region, so your Elastic IPs can be mapped to any of your availability zones.&quot;
-Brent@AWS
http://developer.amazonwebservices.com/connect/thread.jspa?messageID=84376

The limitation implies that there is some kind of regional routing core infrastructure that could take down all your zones in that region if it suffered an outage. I expect all their really doing when you remap an IP is updating NAT tables somewhere.

Useful? Yes. Staggering network engineering? No.</description>
		<content:encoded><![CDATA[<p>&#8220;From the outside this may seem straightforward, but in reality the degree of engineering that is necessary to support this type of technical feature is quite staggering. Even if you had servers in multiple co-location facilities it is not easy to make the colos independent of one another. If they are close-by physically they may well share regional internet routes.&#8221;</p>
<p>You&#8217;re right, rerouting individual IPs at the carrier/transit level to different geographic locations would be an amazing feat. Too bad Amazon&#8217;s not doing that. You can only remap IPs to zones within a single region&#8230;</p>
<p>&#8220;Elastic IPs are only remappable to instances in the same region.   Currently, Amazon EC2 exposes only a single region, so your Elastic IPs can be mapped to any of your availability zones.&#8221;<br />
-Brent@AWS<br />
<a href="http://developer.amazonwebservices.com/connect/thread.jspa?messageID=84376" rel="nofollow">http://developer.amazonwebservices.com/connect/thread.jspa?messageID=84376</a></p>
<p>The limitation implies that there is some kind of regional routing core infrastructure that could take down all your zones in that region if it suffered an outage. I expect all their really doing when you remap an IP is updating NAT tables somewhere.</p>
<p>Useful? Yes. Staggering network engineering? No.</p>
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		<title>By: Great Overview of Amazon's New Features from RightScale &#124; John M Willis ESM Blog</title>
		<link>http://blog.rightscale.com/2008/03/26/rightscale-supports-the-new-amazon-ec2-elastic-ip-addresses-and-availability-zones/#comment-35</link>
		<dc:creator>Great Overview of Amazon's New Features from RightScale &#124; John M Willis ESM Blog</dc:creator>
		<pubDate>Fri, 28 Mar 2008 08:07:37 +0000</pubDate>
		<guid isPermaLink="false">http://rightscale.wordpress.com/?p=46#comment-35</guid>
		<description>[...] RightScale supports the new Amazon EC2 Elastic IP addresses and availability zones [...]</description>
		<content:encoded><![CDATA[<p>[...] RightScale supports the new Amazon EC2 Elastic IP addresses and availability zones [...]</p>
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		<title>By: Phoenomi - Surfing the Longtail &#187; Blog Archive &#187; A new way to upgrade your production site</title>
		<link>http://blog.rightscale.com/2008/03/26/rightscale-supports-the-new-amazon-ec2-elastic-ip-addresses-and-availability-zones/#comment-32</link>
		<dc:creator>Phoenomi - Surfing the Longtail &#187; Blog Archive &#187; A new way to upgrade your production site</dc:creator>
		<pubDate>Fri, 28 Mar 2008 00:01:33 +0000</pubDate>
		<guid isPermaLink="false">http://rightscale.wordpress.com/?p=46#comment-32</guid>
		<description>[...] new elastic ip feature changes the way you upgrade a production site:  If you then launch a fresh instance for an upgrade of your web site, you can [...]</description>
		<content:encoded><![CDATA[<p>[...] new elastic ip feature changes the way you upgrade a production site:  If you then launch a fresh instance for an upgrade of your web site, you can [...]</p>
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		<title>By: TvE</title>
		<link>http://blog.rightscale.com/2008/03/26/rightscale-supports-the-new-amazon-ec2-elastic-ip-addresses-and-availability-zones/#comment-30</link>
		<dc:creator>TvE</dc:creator>
		<pubDate>Thu, 27 Mar 2008 22:12:54 +0000</pubDate>
		<guid isPermaLink="false">http://rightscale.wordpress.com/?p=46#comment-30</guid>
		<description>PJ, I can&#039;t go into specifics, but I can say that we didn&#039;t spend much time sleeping the last 24 hours :-).</description>
		<content:encoded><![CDATA[<p>PJ, I can&#8217;t go into specifics, but I can say that we didn&#8217;t spend much time sleeping the last 24 hours <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_smile.gif' alt=':-)' class='wp-smiley' /> .</p>
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		<title>By: PJ Doland</title>
		<link>http://blog.rightscale.com/2008/03/26/rightscale-supports-the-new-amazon-ec2-elastic-ip-addresses-and-availability-zones/#comment-29</link>
		<dc:creator>PJ Doland</dc:creator>
		<pubDate>Thu, 27 Mar 2008 21:33:26 +0000</pubDate>
		<guid isPermaLink="false">http://rightscale.wordpress.com/?p=46#comment-29</guid>
		<description>THAT WAS FAST. Did you guys know this was coming in advance?</description>
		<content:encoded><![CDATA[<p>THAT WAS FAST. Did you guys know this was coming in advance?</p>
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		<title>By: Amazon adds new features to EC2 &#124; HighEdWebTech</title>
		<link>http://blog.rightscale.com/2008/03/26/rightscale-supports-the-new-amazon-ec2-elastic-ip-addresses-and-availability-zones/#comment-26</link>
		<dc:creator>Amazon adds new features to EC2 &#124; HighEdWebTech</dc:creator>
		<pubDate>Thu, 27 Mar 2008 18:45:00 +0000</pubDate>
		<guid isPermaLink="false">http://rightscale.wordpress.com/?p=46#comment-26</guid>
		<description>[...] has also posted some tutorials on how to use the new features, including how to set up a fault-tolerant site.   Written by: Mike &#124; [...]</description>
		<content:encoded><![CDATA[<p>[...] has also posted some tutorials on how to use the new features, including how to set up a fault-tolerant site.   Written by: Mike | [...]</p>
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