Provider Backbone Transport Networking Host-to-host connections - PowerPoint PPT Presentation

Provider Backbone Transport Networking Host-to-host connections through SURFnet6 Drs. R. van der Pol ing. G.A. van Malenstein Research Project 2 A. Toonk, MSc ing. C. Steenbeek

Contents � Background � Problem Description � Research Question � PBT Theoretical � PBT Practical � PBT and SURFnet6 � Conclusion July 6, 2007 PBT Networking 2/16

Background � SURFnet6 � Hybrid • IP: packet-switched • Lightpaths: circuit-switched (with Quality of Service) � Ethernet � Packet-switched (LAN) � Carrier ethernet (MAN) � New ethernet extensions � Provider Backbone Bridges (PBB) � Provider Backbone Transport (PBT) July 6, 2007 PBT Networking 3/16

Research Question “In which way(s) are SURFnet's customers able to setup an end-to-end connection through SURFnet6 and their own internal ethernet network, with use of the new ethernet extensions Provider Backbone Bridges (PBB) and Provider Backbone Transport (PBT)?” July 6, 2007 PBT Networking 4/16

Research Methods � IEEE Standard Documents � 802.1AB, 802.1ag, 802.1ah, 802.1Qay � Presentation SURFnet6 � Interview � Ir. G.W.J. Jacobs, Nortel Networks � Online articles July 6, 2007 PBT Networking 5/16

PBT Environment July 6, 2007 PBT Networking 6/16

Provider Backbone Bridges July 6, 2007 PBT Networking 7/16

Provider Backbone Transport � No fl ooding of unknowns, broadcast and multicast � No STP � No MAC-learning � Separated by VLAN � Control Plane � Fail-over in 50 ms � Fills forwarding tables � Primary and Backup tunnel � Layer 2: Packet-switched � Circuit-switched July 6, 2007 PBT Networking 8/16

PBT Practical � Customers only � SURFnet6 � More solutions of implementing PBT can be found in our report July 6, 2007 PBT Networking 9/16

PBT Practical - Customers only July 6, 2007 PBT Networking 10/16

Practical to SURFnet6 � 3 Domains � Unknown provider network � (De)Encapsulation at Edge Bridges � Introduces single points of failure July 6, 2007 PBT Networking 11/16

PBT and SURFnet6 (1/2) July 6, 2007 PBT Networking 12/16

PBT and SURFnet6 (2/2) � 3 Control planes � Implementation � Enabling PBT on at least two bridges per customer network � Placing at least two PBT Bridges (Edge Bridges) per customer network July 6, 2007 PBT Networking 13/16

Conclusion � Protocols are described in our report � Many articles about PBT online, often fi rst drafts or management summary � SURFnet � s customers can implement PBT � By enabling PBT on at least two bridges, or � by placing at least two Edge Bridges July 6, 2007 PBT Networking 14/16

Future Work � Three control planes to one, with Soapstone Networks � PNC � Single PBT domain (PBEB -> PBCB) � Expansion of PBT in campus networks � Differences PBT and T-MPLS � Research by SURFnet on exact implementation steps July 6, 2007 PBT Networking 15/16

The End Any questions? July 6, 2007 PBT Networking 16/16