@techreport{oki-pce-gmpls-req-02, number = {draft-oki-pce-gmpls-req-02}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-oki-pce-gmpls-req/02/}, author = {Eiji Oki}, title = {{Requirements for Path Computation Element in GMPLS and IP/MPLS Networks}}, pagetotal = 25, year = 2005, month = feb, day = 21, abstract = {Path Computation Element (PCE) provides functions of traffic engineering in Generalized Multi-Protocol Label Switching (GMPLS) and IP/MPLS net- works. In IP/MPLS networks, PCE provides MPLS LSP routes with con- straints. In GMPLS networks, PCE provides GMPLS LSP routes and optimal virtual network topology reconfiguration control, and jugdes on whether a new lower-region LSP should be established when a higher-region LSP is requested. PCE also handles interworking between GMPLS and IP/MPLS net- works, both of which will coexist at some point during the migration process.}, }