AWS re:Invent 2015 | (NET403) Another Day, Another Billion Packets

Why HN readers recommended it

Considered a favorite deep dive into how AWS does virtual networking at L3 and why VPC hosts cannot snoop each other.

This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.

Video & recommendation details

Creator / channel

Amazon Web Services

Topic

cloud virtual networking

Format

talk

Level

advanced

HN recommenders in dataset

3

HN mentions in dataset

3

Recommendation years in dataset

2017–2020

These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.

From the original HN conversations

Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.

• Here's the ever excellent Eric Brandwine explaining what AWS does at L3 wrt VPC: [VIDEO] Here's the super versatile Colm Mac explaining what AWS does at L4: [LINK] --- Google has been very open about their network infrastructure, here's a nice summary from 2015: [LINK] …

• There's lots on [LINK] , and talks on youtube ( [VIDEO] is a fav). But the TLDR is this: VPC stands for "Virtual Private Cloud" and it gives you your own virtual data center on AWS. You get a private network that uses whatever IP …

• You can't snoop on traffic between hosts in the same VPC. Here is a good video explaining why [VIDEO] . The tl;dr; is that your guest OS (the EC2 instance) is not connected to the physical layer 2 network. The host OS hypervisor is and …