1. © 2006 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 1 Draft-sajassi-l2vpn-pbb-vpls-mpls- access-00.txt July 28, 2008 PBB-VPLS with MPLS Access Network

2. © 2006 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 2 Authors  Ali Sajassi  Samer Salam  Nabil Bitar  Dinesh Mohan

3. © 2006 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 3 Where we left out in March 08 NEXT STEP  Now, the coverage of different interworking scenarios is very complete in draft-sajassi-l2vpn-vpls-pbb-interop-03.txt  Have addressed the previous issues/shortcomings  Ready for the WG call  But discussing with the authors and other interested parties regarding re- arranging the contents between this draft and the other draft on.1ah along the following functional lines - Data-plane interworking: native 802.1ah w/ VPLS - Data-plane interworking: native 802.1ah over H-VPLS & migration - Control-plane: Signaling & auto-discovery  Other areas that need to be addressed - MAC flushing - Multicast - etc.

4. © 2006 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 4 What is it ?  Separate out the PBB-VPLS interop scenarios for MPLS Access network into this new draft  It covers PBB functionality on - u-PE devices - n-PE devices - Mixe of u-PE & n-PE devices  It covers both single I-SID & multiple I-SID domains  It covers different migration scenarios - 802.1ad service frames over VPLS core - 802.1ah frames over VPLS core - mix of both 802.1ad &.1ah frames over VPLS core

5. © 2006 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 5 Connectivity between Native 802.1ah and VPLS core  Only applies to native 802.1ah network connectivity to VPLS core - e.g., H-VPLS w/ 802.1ah access and not H-VPLS w/ MPLS access  Three types of interfaces Type-I: B-tagged Service I/F w/ B-tag as service delimiter Type-II: B-tagged Service I/F w/ I-tag as service delimiter Type-III: I-tagged Service I/F w/ I-tag as service delimiter

6. © 2006 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 6 Migration Scenario – Mixed Service Frames over VPLS core P P Core Network (MPLS) P P P P Access Network (MPLS) u-PEu-PE CECE u-PEu-PE u-PE w/ IB-BEB CECE n-PE u-PE w/ IB-BEB CECE u-PEu-PE u-PEu-PE CECE P P n-PE PE w/ Inv IB-BEB PE w/ Inv IB-BEB Access Network (MPLS)

7. © 2006 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 7 Next Step  Discuss it w/ interested parties in aligning the PBB- VPLS work for MPLS access  Solicit WG input  Ask for WG status prior to March 09