A web-hosting scenario is presented to illustrate some of the most common benefits of software defined networks, including both packet forwarding and reporting.
- [Instructor] Let's take a look at a…very simple version of SDN at work.…In this diagram, we have a network that connects…to the internet, and on the inside of that network,…there are two web servers.…These are actually redundant web servers…that host the same website to the outside world.…There are two so we can have some fault tolerance,…and so we can balance the load of a high volume of requests…from the outside world.…In between the internet and the two servers,…we have a load balancing switch,…that's being managed by software defined networking.…
In addition to managing the load balancing function,…the controller is also tracking the usage of both servers,…and telling the firewall what to let in.…And under normal load the load balancer is simply…alternating between the two servers…to balance out the traffic as much as possible.…And that could probably be accomplished without introducing…this new layer of management.…But let's take a look at how SDN…can improve the flow a little bit here.…Right now the traffic all has to go through…
AuthorScott M Burrell
- Configuring a network interface controller team
- Switching embedded teaming
- Remote enabled direct memory access NICs
- Configuring virtual machine queue
- Enabling and configuring SR-IOV
- Understanding software-defined networks (SDN)
- Reviewing SDN network requirements and deployment scenarios
Skill Level Intermediate
1. High-Performance Network Interfaces
2. High-Performance SMB Environments
3. High-Performance Virtual Networks
4. Software-Defined Networks
5. Software-Defined Virtual Networks
6. Gateways and Firewalls
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