GMPLS update - 2: added standard MPLS TE management framework

Added #standard #MPLS #TE #tunnel management #framework in GMPLS module. This adds the facility for #create / #modify / #remove TE #tunnel/ #LSP s. The resource requirement for LSP s can be separately specified as #bandwidth #constraint. The #path #constraint for the LSP s can be specified as explicit route configuration. The #run-time real #path information of the LSP s is also provided as part of the standard framework.

#GMPLS update 2 ...
[commit 2b32223486638d73c9c724ab1398da0939641907] (https://github.com/nes-repo/NES-Open-Switch/commit/2b32223486638d73c9c724ab1398da0939641907)