open-guides/og-aws

Clarify network costs between EC2 and ALB/CLB (when free vs $0.01/GB)

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#300 创建于 2016年11月8日

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help wantedneeds aws discussionneeds graphicssec: Billing and Cost Managementsec: Load balancing

描述

I think that there's a mistake in https://github.com/open-guides/og-aws/raw/master/figures/aws-data-transfer-costs.png

It indicates that cross-AZ traffic between ALB/CLB and EC2 is $0.01/GB, but I think it should be 0 (at least for the CLB)

From http://docs.aws.amazon.com/elasticloadbalancing/latest/classic/enable-disable-crosszone-lb.html:

When you enable cross-zone load balancing, you are not charged for data transfer between the load balancer nodes and the instances

I couldn't find the same kind of clear language in the ALB docs though

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aws
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70
研究方向
Check the AWS documentation links provided in the issue to verify the cross AZ data transfer cost for ALB and CLB. Update the figure 'aws data transfer costs.png' or add a note clarifying that cross AZ traffic between CLB and EC2 is free. Refer to the existing comments for any additional clarifications.