SDH Virtual Concatenation technique used in Ethernet data transport

Transferring Ethernet Frame over SDH (EOS) is a simple and robust technique to connect LANs within a private and public network. But until now, when mapping Ethernet Frame into SDH stream, Ethernet have to be brute-forced into an oversized SDH carrier, and which will inevitably cause a huge waste of bandwidth. In this paper, we utilize Virtual Concatenation technique to ´right-size´ the SDH pipes for Ethernet - transport Gigabit Ethernet data using a group of virtually concatenated STS-1 timeslots within a 2.5 Gbps SDH carrier. By using the technique we can improve the bandwidth efficiency of the transport networks as well as implement the dynamic allocation of bandwidth resources.