Slow network booting on Ubuntu server12.10

New Ubuntu Server12.10 on Virtualbox is slow to boot up. Seems like netwrok portion is holding up. Here is quick resolution.   1. Install ‘ifplugd’…

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Network performance testing with Iperf

Tweet Iperf is well-known program to measure TCP performance and bandwidth of IPv4, IPv6 and multicast between two designated loations. It supports UDP and changing…

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Easy QoS 101 – What is QoS(Qaulity of Service)

Tweet QoS(Qaulity of Service), it is definetly one of hot topic in IT fields. Economically, most companes are suffering in thesedays. IT budget got cut…

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Easy QoS 101 – QoS protocols

Tweet QoS(Qaulity of Service) protocols were developed since data network demands efficiency of data delivery. Well known QoS protocols are RSVP, IntServ, DiffServ, MPLS, SBM…

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What is gratuitous ARP?

Tweet A gratuitous ARP is an ARP broadcast-type of packet that is used to makre sure that no other device on the network has the…

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