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Cisco customers struggle with product changes

Cisco customers grapple with the network architectural changes required in deploying new products like Application Centric Infrastructure.

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SDN could supercharge network security

SN blogs: This week, an analyst says SDN could help secure the network; private cloud IaaS needs careful planning for success.

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New breed of APM tools tackle hybrid cloud performance

Keeping tabs on application performance gets tougher in hybrid cloud situations. APM tools can help.

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Extreme Networks warns of revenue slump for Q3

Extreme Networks' revenue for Q3 will be lower than the vendor previously expected. Currency value fluctuations and delayed purchasing from enterprises cited.

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Networking Basics

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    local area network (LAN)

    A local area network (LAN) is a group of computers and associated devices connected to a server using a shared common communications line or wireless link.

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    ICMP (Internet Control Message Protocol)

    ICMP (Internet Control Message Protocol) is an error-reporting and message-control protocol that network devices use to report problems in IP packet delivery.

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    optoisolator (optical coupler or optocoupler)

    An optoisolator (also optical coupler or optocoupler) is a component that uses light to transfer electrical signals between circuits to keep them electrically isolated from each other, preventing surges.

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