What is GMPLS?
GMPLS (Generalized Multiprotocol Label Switching), also known as Multiprotocol Lambda Switching, is a technology providing enhancements to MPLS (Multiprotocol Label Switching). Essentially, GMPLS provides a platform and support for fiber optic communications. MPLS is called multiprotocol because it works with all existing network protocols. In addition to improving the speed of packet traffic, MPLS also makes it easier to manage your network for quality of service. The use of MPLS has become a popular method for networks to carry increasing volumes and varieties of traffic such as Voice over Internet Protocol (VoIP).
GMPLS is ever-evolving, requiring changes to existing protocols and the evolution of new protocols. GMPLS also provides for a greater number of parallel links between nodes in a network. This is important in fiber optic networks, where there may be hundreds of fibers between an origination node and destination node. GMPLS also allows for rapid fault detection, fault isolation, and provides a switchover to alternate channels — minimizing network downtime.