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Hands-On Network Device Virtualization With VRF (Virtual Routing and Forwarding)
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Author(s): Ganesh Chandra Deka (Government of India, India), Prashanta Kumar Das (Government Industrial Training Institute Dhansiri, India)and Rahul Borah (Network Bulls, India)
Copyright: 2018
Pages: 20
Source title:
Design and Use of Virtualization Technology in Cloud Computing
Source Author(s)/Editor(s): Prashanta Kumar Das (Government Industrial Training Institute Dhansiri, India)and Ganesh Chandra Deka (Government of India, India)
DOI: 10.4018/978-1-5225-2785-5.ch014
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Abstract
Virtual Routing and Forwarding (VRF) is a technology that allows multiple instances of IP (Internet Protocol) routing table to co-exist within the same Router at the same time. The routing instances are independent, allowing the same or overlapping IP addresses to be used without conflict. Using VRF technology, users can virtualize a network device from a Layer 3 standpoint of creating different “Virtual Routers” in the same physical device. Internet Service Providers (ISP) often use VRF technology to create separate routing table in a single physical Router which are completely isolated one from the others. This chapter discusses about the configuration of VRF-Lite in GNS3 (Graphical Network Simulator-3) on RIP/v2, EIGRP and OSPF protocols.
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