Contributions were presented to the IETF (Bejing, China, November 7-12, 2010 ), introducing extensions to the Path Computation Element communication Protocol, or PCEP (draft-ietf-pcegmpls-pcep-extensions-01, draft-gonzalezdedios-pce-resvres-context-state-00, draft-zhao-pce-pcep-interdomain-p2mp-procedures-06).