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Software-Defined Networking with OpenFlow

You're reading from   Software-Defined Networking with OpenFlow Deliver innovative business solutions

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Product type Paperback
Published in Oct 2017
Publisher Packt
ISBN-13 9781783984282
Length 246 pages
Edition 2nd Edition
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Authors (2):
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Oswald Coker Oswald Coker
Author Profile Icon Oswald Coker
Oswald Coker
SIAMAK AZODOLMOLKY SIAMAK AZODOLMOLKY
Author Profile Icon SIAMAK AZODOLMOLKY
SIAMAK AZODOLMOLKY
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Toc

Table of Contents (11) Chapters Close

Protocol-independent forwarding


Research has been ongoing on how a common, consistent, and vendor-independent way consistent with OpenFlow can be defined to ensure packet processing by a flexible switch. The Open Networking Foundation (ONF) proposed the (OF-PI) approach, which was created to express new and existing protocols in the data path.

OF-PI is composed of a set of instructions that are protocol neutral, called the POF-FIS, and the P4 language, which is utilized to express the method in which forwarding of packets should be done by the forwarding plane. P4 and POF-FIS express the supported functionalities in an OpenFlow specification which is revealed as a library module existing on OF-PI. P4/POF modules could be used to express various protocols such as Generic Routing Encapsulation (GRE) and Multiprotocol Label Switching (MPLS).

Here, P4 is used to define the formats of the packet and table structure, and POF-FIS, which is protocol independent, is used to perform actions that are...

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