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Troubleshooting Virtual Private Networks by Mark Lewis

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Troubleshooting MPLS VPNs

MPLS VPNs are relatively complex, but by adopting an end-to-end, step-by-step approach, troubleshooting can be relatively fast and efficient. The process of troubleshooting MPLS VPNs can be broken down into two basic elements, troubleshooting route advertisement between the customer sites, and troubleshooting the LSP across the provider backbone.

The flowcharts in Figure 6-29 and 6-30 describe the processes used for troubleshooting route advertisement between the customer sites and troubleshooting the LSPs across the provider backbone. You can use these flowcharts to quickly access the section of the chapter relevant to problems you are experiencing on your network.

Figure 6-29. Flowchart for Troubleshooting Route Advertisement ...

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