In: Computers and Technology

Submitted By sivaraman
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Layer-3 vs. Layer-2

Layer-3 vs. Layer-2 Table of Contents
WHITE PAPER 1. 2. 3. 4. 5. 6. Objective ..................................................................................................................... 3 Target Audience .......................................................................................................... 3 Pre-Requisites.............................................................................................................. 3 Introduction ................................................................................................................. 3 MPLS Layer-3 VPNs .................................................................................................. 4 MPLS Layer-2 VPNs .................................................................................................. 7 6.1. Point-to-Point Connectivity ................................................................................. 8 6.2. Multi-Point Connectivity...................................................................................... 9 7. Which Way to Go: The Layer-3 or The Layer-2 Way.............................................. 12 8. Summary ................................................................................................................... 15


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Layer-3 vs. Layer-2


1. Objective
To give the reader an insight into the pros and cons of both the layer-3 and layer-2 approaches to implementing IP/MPLS-based VPNs.

2. Target Audience
Anyone working in the service provider space, or anyone interested in the MPLS technology in general.

3. Pre-Requisites
For the purpose of this paper, it is assumed that the reader is familiar with the basic concepts of MPLS label switching. FOUNDRY NETWORKS

4. Introduction…...

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