Network Protection

Ring cover is a type of mesh-based protection technique to apply the traditional ring protection techniques such as unidirectional path switched ring (UPSR) and bidirectional line switched ring (BLSR) to a mesh-based network. For a simple network, it may be possible to employ a single ring to cover all the links of the network. However, [...]

In many national transport networks such as US networks, there is a type of special sub-topology. That is, between two hub nodes with high nodal degrees, there are several degree-two nodes connected in a chain. Figure 1 shows an example of such a type of node chain, in which node 1 and node 4 are [...]