Dynamic bandwidth management using container LSPs

A new type of LSP, called a container LSP, is introduced to enable load balancing across multiple point-to-point member LSPs between the same ingress and egress routers. Each member LSP takes a different path to the same destination and can be routed along a different IGP cost path. Based on the configuration and aggregate traffic, a container LSP provides support for dynamic bandwidth management by enabling the ingress router to dynamically add and remove member LSPs through a process called LSP splitting and LSP merging respectively. Member LSPs can also be re-optimized with different bandwidth values in a make-before-break way.