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Category: Networking

What is OpenFlow? How it works in SDN?

Posted on May 18, 2018October 1, 2018 by Charanjit Cheema

OpenFlow is a standard protocol of SDN which assist SDN Controller to communicate directly with the forwarding plane of network devices such as switches and routers, both physical and virtual (hypervisor-based), so it can better adapt to changing business requirements. Generally the conventional switches forwards the packets which are called the Forwarding Plane and do…

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Tcpdump – Linux Admin 12 useful commands.

Posted on May 11, 2018July 22, 2018 by Charanjit Cheema

Tcpdump is a network sniffer tool. It is most powerful and widely used command line tool for Linux/Unix. It sniff or capture the TCP/IP traffic that receive or transfer over a network. tcpdump has an option to save captured packets in a file for future analysis. It can be save in a pcap format file, that can be…

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