1. 80th IETF – Prague, March 2011 PCEP Requirements and Extensions for the support of Wavelength Switched Optical Networks (WSON) Young Leeylee@huawei.comylee@huawei.com Huawei Greg Bernsteingregb@grotto-networking.comgregb@grotto-networking.com Grotto Networking Jonas Martensson Jonas.Martensson@acreo.seJonas.Martensson@acreo.se Acreo Tomonori Takedatakeda.tomonori@lab.ntt.co.jptakeda.tomonori@lab.ntt.co.jp NTT Takehiro Tsuritanitsuri@kddilabs.jptsuri@kddilabs.jp KDDI

2. 80th IETF – Prague, March 2011 Updates from the last version In Section 2.1.1, added more detailed requirement on wavelength assignment option as follow: Explicit Label Control (ELC) [RFC4003] Non-Explicit labels in the form of Label Sets (This will allow Distributed WA at a node level where each node would select the wavelength from the Label Sets) Editorial/reference update

3. 80th IETF – Prague, March 2011 Summary & Next Steps Stable now The solution draft has been published (00 & 01) Ready for WC LC