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September 23rd, 2003
Building the ISIS Foundation

CCIE Peter Van Oene discusses "Building the ISIS Foundation" and describes ISIS in the hierarchical, or multi-area sense. Read Peter's discussion and gain valuable insight into ISIS.

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A Tutorial excerpt from ISIS I: Routing In Single Areas by Peter A. Van Oene

Basic OSPF Components

Howard Berkowitz examines Basic OSPF Components, namely how OSPF (and other link-state protocols) consider routers as a special kind of link. Check out this informative article written by the Technical Director of Certification Zone.

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A Tutorial excerpt from OSPF II: Using OSPF in Hierarchical Systems by Howard Berkowitz

Interview with the Author - Galina Pildush

Galina is a CCIE who authored the Layer 3 VPNs Tutorial, Study Quiz, and Lab Exercise that debuted at the Zone on August 1, 2003. In this week's interview, Galina discusses the importance of understanding L3VPNs and why L3VPN offerings can be a great business opportunity for ISPs.

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