Infrastructure

Provisioning with Red Hat Satellite 6

Provisioning with Red Hat Satellite 6

Satellite is Red Hat’s content management, provisioning, configuration management, and lifecycle management solution to help keep your infrastructure running efficiently and more securely while reducing costs and overall complexity. Regardless of your what your environment looks like, you can benefit from the configuration management capabilities that Satellite provides.

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Tracing packets inside Open vSwitch

Open vSwitch is a software switch responsible for providing network connectivity to virtual machines or containers. Since it is programmable, it brings a challenge to understand what is going on in the network. Open vSwitch (OVS) is an OpenFlow virtual switch, so before talking about OVS itself, it is necessary to introduce OpenFlow a bit.

OpenFlow is an open standard protocol that allows separation of the packet forwarding (data plane) from the high level routing decisions (control plane). The control plane (also known as OF controller) is responsible to provide instructions to the data plane (vswitch) on how to process packets.

The fact that each packet can have its own fate brings a new challenge to understand what is going on in the network. This article will show how to know what is happening with packets inside the vswitch.

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