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layer: In computer programming, layering is the organization of programming into separate functional components...

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Problem solve Nov 23, 2004

Layer 2 VPN scalability

A look at the limitations of layer 2 VPN scalability. Continue Reading


Jul 10, 2006

Application layer logging quiz answers

Application layer logging quiz answers Continue Reading


By David Davis Problem solve Apr 04, 2006

Layer 3 switches explained

Layer 3 switches are explained in this tip -- including the difference between a switch, a router and a Layer 3 router. Continue Reading


Problem solve Apr 27, 2004

Layer 3 MPLS VPNs

A look at some of the details of Layer 3 MPLS VPNs. Continue Reading


Manage Dec 17, 2001

Layers in RNext

I have just installed Rnext Beta 4 for testing. Every developer or Web designer will love the new option to create layers. Continue Reading


By Sudhanshu Gupta Problem solve Sep 11, 2007

Can you convert a Layer 3 switch to Layer 2?

See how a Layer 3 switch can convert to a Layer 2 switch, in this expert response. Continue Reading


Get started Sep 27, 2013

Multi-layer SDN: Programmability across packet and optical layers

Multi-layer SDN lets engineers use controllers for centralized programmability across both packet and optical layers for a more efficient WAN. Continue Reading

By Ivan Pepelnjak News Nov 26, 2007

Making the case for Layer 2 and Layer 3 VPNs

Offering VPN services isn't a simple Layer 2 or Layer 3 choice; it depends on customer needs and being clear about what your network can do. Continue Reading


By Crystal Bedell Get started Dec 16, 2010

Layer 3 VPN architectures

This guide serves as an introduction to Layer 3 VPN architectures. As you consider different virtual private network types for your enterprise WAN, such as MPLS, IPsec, SSL and remote, be mindful of the traffic you... Continue Reading


By Michael Gregg Problem solve Oct 01, 2010

Disadvantages to a layered approach

Security expert Michael Gregg discusses the disadvantages to a layered approach to enterprise security. Continue Reading