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Amazon Web Services Networking

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This webinar will help demystify the networking aspects of Amazon Web Services. We'll start with the high-level concepts, cover security aspects, and conclude with inter-VPC routing and hybrid cloud implementations.

Last modified on 2019-04-13 (release notes)

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45:54 AWS Concepts

We'll start with high-level concepts:

  • What AWS services are relevant to a networking engineer?
  • What are regions and availability zones?
  • How do you implement high availability in AWS environment?
AWS Services and Components 13:26 2018-10-14
Regions and Availability Zones 12:23 2018-10-14
High Availability in AWS 20:05 2018-10-14

Examples

VPC Scenarios and Examples

34:08 Virtual Private Cloud (VPC)

Virtual Private Cloud (VPC) service is the foundation of AWS networking. This section describes VPC concepts, subnets within VPCs, and VPC/subnet addressing.

Virtual Private Cloud 13:12 2018-10-14
VPC Subnets 5:42 2018-10-14
VPC and Subnet Addressing 15:14 2018-10-14

New AWS Features

Amazon Virtual Private Clouds can now be shared with other AWS Accounts

Examples

Working with VPCs and Subnets - Amazon Virtual Private Cloud

44:19 Interfaces and Addresses

Subnets are useless without servers connected to them. In this section we'll focus on AWS implementation of VM network interfaces, network interface addressing, and supporting services like DNS and DHCP.

The section also covers advanced concepts like public and private IP addresses, elastic IP addresses, and elastic network interfaces.

Network Interfaces 9:30 2018-10-14
Interface Addressing 14:33 2018-10-14
DNS and DHCP 4:41 2018-10-14
Sample Deployments 15:35 2018-10-26

Examples

Working with IP Addresses
Working with IP Addresses for Your EC2 Instance
Working with Network Interfaces
Working with Elastic IP Addresses
Viewing DNS Hostnames for Your EC2 Instance
Working with DHCP Option Sets

50:32 Network Security

AWS offeres several layers of network security:

  • Stateful security groups applied to VM interfaces;
  • Stateless network ACLs applied to subnets;
  • Validation of source and destination IP addresses.

All these mechanisms (and the logging functionality available with flow logs) are described in this section.

Network Security 13:31 2018-10-26
Security Groups 17:12 2018-10-26
Network ACLs 11:08 2018-10-26
VPC Flow Logs 3:09 2018-10-26
Security Summary 5:32 2018-10-26

Examples

Working with Security Groups
Working with Network ACLs
Example: Controlling Access to Instances in a Subnet
Working With Flow Logs - Amazon Virtual Private Cloud

29:46 Route Tables

VPC Route Tables are almost like VRFs with a few significant differences:

  • Route tables are applied to subnets;
  • All route tables share the entry for local VPC CIDR block.

This section describes the route tables and details of packet forwarding within VPC.

Route Tables Overview 12:13 2018-10-26
Working with Route Tables 9:45 2018-10-26
VPC Forwarding Behind the Scenes 7:48 2018-10-26

Examples

Working with Route Tables

16:45 Internet Connectivity

VPC Internet connectivity is usually provided through an Internet gateway. IPv6 hosts that don't provide services to outside clients can use egress-only gateway; similar IPv4 hosts can access Internet through NAT gateway or NAT instance.

This section describes all three mechanisms, and the adjustments to route tables that have to be made to support them.

Internet Connectivity 9:19 2018-10-26
NAT Gateways and Instances 7:26 2018-10-26

New AWS Features

Bring Your Own IP Addresses (BYOIP) - Amazon Elastic Compute Cloud

Examples

Creating a VPC with an Internet Gateway
Working with Egress-Only Internet Gateways
Working with NAT Gateways

1:24:04 External Connectivity

This section describes other external connectivity options available in AWS VPC - IPsec VPN connections, router-to-router VLAN connections (Direct Connect), inter-VPC peering, and Transit Gateways.

VPN Connectivity 25:50 2018-11-15
Direct Connect 25:59 2018-11-15
VPC Peering 12:07 2018-11-15
Transit Gateway 20:08 2019-02-21

New AWS Features

AWS Site-to-Site VPN Now Supports IKEv2
Announcing Multi-Account Support for Direct Connect Gateway
AWS PrivateLink now Supports Access Over VPC Peering

Examples

Site-to-Site VPN Configuration Examples - AWS Site-to-Site VPN
VPC Peering Scenarios - Amazon Virtual Private Cloud
Working with VPC Peering Connections - Amazon Virtual Private Cloud
Getting Started with AWS Direct Connect
Working with Transit Gateways - Amazon Virtual Private Cloud

1:04:19 Load Balancing

AWS provides a variety of load balancing mechanisms, from local L4 load balancing (Network Load Balancing) and HTTP load balancing to global load balancing with DNS and anycast IP addresses.

Elastic Load Balancing 14:07 2019-02-21
Network Load Balancer 11:27 2019-02-21
Application Load Balancer 7:50 2019-02-21
Route 53 and CloudFront 18:51 2019-02-21
Global Accelerator 12:04 2019-02-21

New AWS Features

Network Load Balancer now Supports Cross-Zone Load Balancing
Application Load Balancers now Support Advanced Request Routing
Amazon CloudFront announces support for Origin Failover

Examples

Create an Application Load Balancer - Elastic Load Balancing
Create a Network Load Balancer - Elastic Load Balancing
Getting Started with AWS Global Accelerator - AWS Global Accelerator

7:02 Summary

Summary 7:02 2018-11-15

Slide Deck

Amazon Web Services Networking 5.4M 2019-02-21
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