April 2015

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l MPLS network forwards packet according to the label. But how does label be generated? What mechanism does MPLS adopt to implement data forwarding? l MPLS includes two plane: control plane and data plane. l Control plane’s charge is to generate and maintain routing information and label information. Data plane’s charge is conventional IP packet …

Continue reading MPLS Structure

Purpose In a traditional IP network, a node select the shortest path as the route regardless of other factors such as bandwidth. The shortest path, however, may be congested with traffic, whereas other available paths are idle. Figure 1 Problems in Traditional Routing As shown in Figure 1, assume that links have the same metric. …

Continue reading Introduction to MPLS TE