802 1 ad Provider Provider Edge Bridges 1

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802. 1 ad Provider & Provider Edge Bridges 1 Provider Bridge Provider Edge Bridge

802. 1 ad Provider & Provider Edge Bridges 1 Provider Bridge Provider Edge Bridge S-VLAN 1 1 PNP n n PNP PNP n 1 PNP n n PNP Customer Systems PNP CNP CNP PEP PEP 1|n C-VLAN n 1|n C-tagged srvc i/f CEP (priority tagged) port based srvc i/f CNP n S-tagged srvc i/f n CNP 1|n bundling/multiplexing n client entities into 1 server entity PB & PBB models / 2006 -10 -03 1 single instance/entities port n n instance/entities port

802. 1 ad Provider & Provider Edge Bridges S-VLAN MEP & MIP function locations

802. 1 ad Provider & Provider Edge Bridges S-VLAN MEP & MIP function locations 2 Provider Bridge Provider Edge Bridge S-VLAN 1 Comp. CNP 1 PNP n n PNP PNP n 1 PNP n n PNP S-VLAN instance interm. point with S-VLAN MIP function CNP CNP PEP PEP 1|n C-VLAN n 1|n C-tagged srvc i/f CEP (priority tagged) port based srvc i/f CNP n S-tagged srvc i/f n S-VLAN instance end point with S-VLAN MEP function Customer Systems CNP S-VLAN instance intermediate point with S-VLAN-MIP & S-VLAN-MEP functions 1|n bundling/multiplexing n client entities into 1 server entity PB & PBB models / 2006 -10 -03 1 single instance/entities port n n instance/entities port

802. 1 ah Backbone Edge & Core Bridges Backbone-MAC Service Boundary Backbone-MAC Provider Backbone-MAC

802. 1 ah Backbone Edge & Core Bridges Backbone-MAC Service Boundary Backbone-MAC Provider Backbone-MAC Client Backbone Edge Bridge Provider Bridge & Backbone Core Bridge B(S)VLAN Comp. B(S)VLAN PNP n n n 1 I-SI 1 Comp. CNP PEP 1 CNP PIP 1|n 1 PNP PNP n n 1 CNP PIP 1|n PNP n 1 CNP PIP CNP PEP 1|n n 1|n PBB S-VLAN CEP C-tagged srvc i/f 1|n n 1|n Customer Systems PBB C-VLAN CEP port based srvc i/f 1 PNP n CNP S-tagged srvc i/f CNP 1|n I-tagged srvc i/f n PNP CNP n B(S)-tagged i/f N/C CNP n I-tagged peer PBBN i/f to/from peer PBBN BEB Backbone MAC Customer MAC address domain 1|n bundling/multiplexing n client entities into 1 server entity PB & PBB models / 2006 -10 -03 3 1 single instance/entities port n n instance/entities port

802. 1 ah Backbone Edge & Core Bridges I-SI and B(S)-VLAN MEP & MIP

802. 1 ah Backbone Edge & Core Bridges I-SI and B(S)-VLAN MEP & MIP function locations 4 Backbone-MAC Service Boundary Backbone Edge Bridge Provider Bridge & Backbone Core Bridge B(S)VLAN Comp. B(S)VLAN PNP n n n 1 I-SI 1 Comp. CNP PEP 1 CNP PIP 1|n 1 PNP PNP n n 1 CNP PIP 1|n PNP n 1 CNP PIP PBB S-VLAN C-tagged srvc i/f 1|n n 1|n CEP PBB C-VLAN CEP CNP I-tagged srvc i/f n CNP n B(S)-tagged i/f N/C PB & PBB models / 2006 -10 -03 PEP n 1|n PNP Service Instance end point with SI-MEP function(s) Srvc Instance interm. point with SI-MIP function CNP PEP 1|n port based srvc i/f 1 PNP n CNP S-tagged srvc i/f Customer Systems B(S)-VLAN instance end point with B(S)-VLAN MEP function B(S)-VLAN instance interm. point with B(S)-VLAN MIP function CNP n I-tagged peer PBBN i/f to/from peer PBBN BEB Srvc Instance intermediate point with SI-MIP & SI-MEP functions 1|n bundling/multiplexing n client entities into 1 server entity 1 single instance/entities port n n instance/entities port