1. © UNIVERSITY of NEW HAMPSHIRE INTEROPERABILITY LABORATORY IEEE 802.1ad Provider Bridges Henry He UNH-IOL Bridge Functions Consortium

2. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA Presentation goals High level understanding What it can do for the customer What it can do for the Service Provider Pros and cons Speak intelligently about it… High level understanding What it can do for the customer What it can do for the Service Provider Pros and cons Speak intelligently about it…

3. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA What is needed? Extending Bridged LANs Preserve Bridged LAN properties Quality of Service Sum it up: Something that acts like a Bridged LAN Extending Bridged LANs Preserve Bridged LAN properties Quality of Service Sum it up: Something that acts like a Bridged LAN

4. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA Why Provider Bridges? Provider Bridges are Bridges Provider Bridges inherit Bridge properties Provider Bridged Network not only acts like a Bridged LAN, it is a Bridged LAN “Bridges” are simple Lower CAPEX and OPEX than routers in general Provider Bridges are Bridges Provider Bridges inherit Bridge properties Provider Bridged Network not only acts like a Bridged LAN, it is a Bridged LAN “Bridges” are simple Lower CAPEX and OPEX than routers in general

5. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA Who standardizes it? IEEE 802.1 Working Group Amendment to IEEE Std. 802.1Q Incorporated into IEEE Std. 802.1Q-2005 Similar: Q-in-Q, VLAN Stacking, 802.1Q tunneling IEEE 802.1 Working Group Amendment to IEEE Std. 802.1Q Incorporated into IEEE Std. 802.1Q-2005 Similar: Q-in-Q, VLAN Stacking, 802.1Q tunneling

6. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA What is it trying to do? Private Ethernet connectivity over a shared Bridged LAN Lancast Corp Pacific Net SE Telco

7. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA What is the scope? Functionality wise… –Transparency –Traffic segregation –Service identification –Customer interfacing –Priority selection –Access protection Demarcation wise… –from UNI to UNI Functionality wise… –Transparency –Traffic segregation –Service identification –Customer interfacing –Priority selection –Access protection Demarcation wise… –from UNI to UNI

8. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA The equipments

9. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA The customer’s view Lancast Corp Pacific Net SE Telco

10. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA The provider’s view S-VLAN Bridge S-VLAN Bridge Provider Edge Bridge Provider Edge Bridge Provider Edge Bridge S-VLAN Bridge S-VLAN Bridge S-VLAN Bridge

11. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA How does it work?

12. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA How does the PBN do that?

13. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA Inside the PBN… Port 2 Port 1 Port 3 FIDDestination MACSVIDPort 11100 AC F1 DE 28 C11 1122 :::: :::: :::: 99900 2A 1C 9D A0 EE3 Filtering Database Port 2 Port 1 Port 3 FIDDestination MACSVIDPort 11100 FE A1 22 31 D220002 11210002 :::: :::: :::: 99900 E1 FA E8 41 C210003 Filtering Database

14. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA Noteworthy details New Ethertype Reserved MAC address for PBN Spanning Tree PCP and Drop Eligible Frame expansion needed (802.3as) New Ethertype Reserved MAC address for PBN Spanning Tree PCP and Drop Eligible Frame expansion needed (802.3as)

15. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA Port-based Service Interface

16. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA C-tagged Service Interface

17. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA S-tagged Service Interface

18. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA Deployment scenarios 4094 Service Instances

19. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA Deployment scenarios 4094 Service Instances

20. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA Deployment scenarios

21. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA Deployment scenarios

22. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA Pros and Cons Pros –A true Bridged LAN service (as opposed to emulated LAN) –Based on well standardized and well deployed technologies (namely,.1Q) Cons –4094 service instances are not enough –Managing 4094 service instances Pros –A true Bridged LAN service (as opposed to emulated LAN) –Based on well standardized and well deployed technologies (namely,.1Q) Cons –4094 service instances are not enough –Managing 4094 service instances

23. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA SummarySummary It is a Bridged LAN (not emulated) Based on simple and well established technologies (.1Q) Inherits Bridging characteristics IEEE Std. 802.1ad Limited to 4094 service instances Not an encapsulation protocol It is a Bridged LAN (not emulated) Based on simple and well established technologies (.1Q) Inherits Bridging characteristics IEEE Std. 802.1ad Limited to 4094 service instances Not an encapsulation protocol

24. U NIVERSITY of N EW H AMPSHIRE I NTER O PERABILITY L ABORATORY Carrier Ethernet Summit – San Diego, CA Q&A