The Amazon Simple Email Service Scripts are used for interfacing with the Amazon Simple Email Service (SES)

The Amazon RDS Command Line Toolkit is used for setting up and administrating the Amazon Relational Data Services (RDS)

With the script below we were able to get a single VM to talk to another VM at slightly better than 3 gigabits per second. Evidently this is unheard of. Proprietary and vendor specific tweaks are not listed; but we may be tapped for assistance on this subject. Please contact us (or leave a comment) with any questions or concerns.

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#!/bin/bash
ifconfig eth0 txqueuelen 300000
sysctl -w net.core.rmem_max=134217728 # BDP
sysctl -w net.core.wmem_max=134217728 # BDP
sysctl -w net.ipv4.tcp_rmem="4096 87380 134217728 " # _ _ BDP
sysctl -w net.ipv4.tcp_wmem="4096 65536 134217728 " # _ _ BDP
sysctl -w net.core.netdev_max_backlog=300000
ethtool -K eth0 gro on

Amazon EC2 Instances have metadata they can access. They get it by accessing a web server on a link-local address, 169.254.169.254. This article shows how to get the metadata and example responses for the types of metadata available.

The Amazon Simple Notification Service Command Line Interface Tool is used to interface with the Amazon Simple Notification Service (SNS) for setting up and sending notifications from the cloud.