1 Generalized EC Type 2 support EC Type 1&2 supporting bridges Maarten Vissers

2 Introduction eotn-common-network-arch-0511-v01.pptxhttp:// eotn-common-network-arch-0511-v01.pptx presented common network architectures for PBB, PBB-TE and EOTN networks to determine the Tagging method of EC Type 2 signals in an EOTN The last two slides in the above presentation indentified implications of the Tagging methods within PB, PBB I and PBB-TE networks These slides were not addressed in Santa Fe meeting due to time constraints This new presentation addresses the implications of the choice of I+S- Tagging of EC Type 2 signals in PB, PBB I and PBB-TE networks Furthermore, this presentation presents some initial feedback on the tagging choice

3 EC Type 2 support beyond PBB and EOTN One may expect that EC Type 2 signal support will be required beyond the PBB II and EOTN networks in future; e.g. in EoSDH, EoMPLS(-TP)/VPLS, PBB-TE, PBB I and PB networks EoSDH transports S-Tagged EC Type 1 signals via GFP-F over SDH VC-n connections; this is a similar environment as in EOTN and I+S-Tagged EC Type 2 signals would be applicable PB, PBB-TE and PBB I transport S-Tagged EC Type 1 signals; should/could EC Type 2 signals be transported with I+S- Tags? NOTE: EC Type 2 support in EoMPLS(-TP)/VPLS is TBA

4 EC frame tagging in PB, PBB, PBB-TE, EOTN NetworkEC Type 1 frame tagEC Type 2 frame tag PB + PBB I (PEB, PB, IB-BEB, BCB only) S-Tag Note: in B-VLAN an I-Tag or S+I-Tag is used I+S-Tag ? PB + PBB II (PEB, PB, IB-BEB, TB-BEB, I-BEB, B- BEB, BCB) S-Tag Note: Inside PBB network the EC frames are carried inside a 2 nd EC frame, which is I-Tagged I-Tag PB + PBB-TE (PEB, PB, IB-BEB, BCB) S-Tag Note: in ESP an I-Tag or S+I-Tag is used I+S-Tag ? EOTN (TEB,TB, OTN XC) S-TagI+S-Tag Note: agreed in Santa Fe meeting EC Type 1: EC carrying an EVC which is not-MAC-in-MAC encapsulated EC Type 2: EC carrying an EVC which is MAC-in-MAC encapsulated

5 EC Type 1&2 supporting PEB S-Tagged LANs S(B)-VLAN Component S-VLAN Component C-VLAN Component EC Type 1 & 2 supporting Provider Edge Bridge (PEB2) CEP C-VLAN Component CEPPAP PEP CNP RCAP PNP PEP Remote Customers S-Tagged Service interface CNP CBP I-Tagged service interface (I-Tagged) I- Component CNP PIP CBP CNP C-VLAN Component CNP PEP CEP CNP S-Tagged Service Interface (S-Tagged) CNP C-Tagged Service Interface (un-, priority-C-. C-Tagged) Port Based Service Interface (un- C-, priority-S- I-Tagged) Port-based, S- & C-Tagged Service Interface (S-, S+C-Tagged) C-Tagged Service Interface (un-, priority-C-, C-Tagged) Port Based Service Interface (un-, C-, priority-S- I-Tagged) S-Tagged Service Interface (S-Tagged) Individual or bundled I-Tagged Services Individual S-VLAN Service Remote Customer Port- based Service Interface Remote Customers C-Tagged service interface T- Component CNP Transparent Service Interface (un-, C-, S-, I-Tagged) PIPCBP S-VLAN Component C-VLAN Component CEPPAP CNP RCAP PNP PEP Remote Customers S-Tagged Service interface Port-based, S- & C-Tagged Service Interface (S-, S+C-Tagged) Remote Customer Port- based Service Interface Remote Customers C-Tagged service interface Tributary Port functonality Line Port functionality To/from PEB & PEB2 & PB & PB2 & IBBEB & IBBEB2 & MEF E-NNI B-Com- ponent PNP CBP B-Com- ponent PNP CBP B-Com- ponent PNP CBP EC Type 1 EC Type 2 EC Type 1&2 PNP ports in PEB node are replaced by B-component complex to support EC Type 2 MEPs and MIPs EC Type 2 UNI-N tributary ports are added to PEB node

6 S(B)-VLAN Component EC Type 1 & 2 supporting Provider Bridge (PB2) B-Com- ponent S-Tagged LANs PNP Line Port functionality PNP CBP B-Com- ponent PNP CBP B-Com- ponent S-Tagged LANs PNP Line Port functionality PNP CBP B-Com- ponent PNP CBP B-Com- ponent PNP CBP B-Com- ponent PNP CBP EC Type 1&2 supporting PB PNP ports in PB node are replaced by B-component complex to support EC Type 2 MEPs and MIPs NOTE: BCB node does not need to support EC Type 2 B-Com- ponent PNP CBP PNP PNP2 = EC Type 1 & 2 supporting PNP EC Type 1 signals EC Type 2 signals

7 EC Type 1&2 supporting PBB-TE IB-BEB CNP and PIP ports in PBB-TE IB-BEB node are replaced by B- component complex to support EC Type 2 MEPs and MIPs B-Tagged LANs B-VLAN Component EC Type 1 & 2 supporting PBB-TE IB Backbone Edge Bridge (IB-BEB2) PNP I- Component B-Com- ponent PNP CBP B-Com- ponent PNP CBP B-Com- ponent CNP PNP CBP B-Com- ponent CNP PNP CBP PIP CBP S-Tagged LAN PNP I- Component B-Com- ponent PNP CBP B-Com- ponent PNP CBP B-Com- ponent CNP PNP CBP B-Com- ponent CNP PNP CBP PIP CBP S-Tagged LAN EC Type 1 & 2 signals must pass through I-Component -ESP-MAC is not the same as B-MAC

8 EC Type 1&2 supporting PBB I IB-BEB CNP ports in PBB I IB-BEB node are replaced by B- component complex to support EC Type 2 B-Tagged LANs B-VLAN Component EC Type 1 & 2 supporting PBB I IB Backbone Edge Bridge (IB-BEB2) PNP I- Component B-Com- ponent CNP CBP PNP B-Com- ponent CNP PNP CBP PIP CBP S-Tagged LAN PNP S-Tagged LAN CBP I- Component B-Com- ponent CNP CBP PNP CBP B-Com- ponent CNP PNP CBP PIP CBP EC Type 2 signals can bypass I-Component

9 Initial feedback I+S-Tagged EC Type 2 OAM is not acceptable EC Type 2 OAM should be S-Tagged like EC Type 1 OAM Use of S-Tagged EC Type 2 OAM will allow reuse of existing EC Type 1 NNI ports in packet and packet-optical transport networks Considerations  I-Tagged LANs are not in the network/do not exist  I-Tagged Ethernet OAM (BSI OAM) is not in the network/does not exist  PBB network deployments are single domain PBB networks with S- Tagged LAN ingress/egress interfaces  No need for EC Type 2 to interwork with PIP in IB-BEB

10 How to continue? Ignore initial feedback and continue with I+S-Tagged EC-Type 2 OAM in standards?  Extend 802.1Q PEB, PB, PBB I IB-BEB and PBB-TE IB-BEB nodes with I+S-Tagged EC Type 2 MEP and MIP support  Let ITU-T SG15 add I+S-Tagged EC Type 2 specifications to its transport network recommendations  Build equipment with (non-standard) S-Tagged EC Type 2 OAM support Revise our May 2011 decision?  Consider that BEBs are used only within the network, not as Network Termination (NT)/Network Interface Device (NID); i.e. BEBs have no UNI-N ports, BEBs only have NNI ports  Extend 802.1Q PEB node with EC Type 2 UNI-N ports and S- Tagged EC Type 2 OAM

11 Backup EC Type1 and EC Type 2 examples including EC/ESP layer stack and EC/ESP identifiers EC Type1 and EC Type 2 (un)tagged primitive formats

12 1. PBB I and PBB-TE network EVC(C-VLAN) via EC Type 1 PEB2 BC B IB-BEB2 CNP2 PNP2 IB-BEB2 BC B CNP2 S S S B(I) UNI B(I) BC B IB-BEB2 CNP2 S S B(I) BC B I B-BEB2 B(I) CEP CNP2 mp2mp B-VLAN or p2p TESI mp2mp B-VLAN or p2p TESI mp2mp B-VLAN or p2p TESI EVC = C-VLAN EC Type 1 S-VID Translation at PBBN domain boundaries (in CNP2) PBB I: few mp2mp B- VLANs in each domain; B-MAC per domain PBB-TE: full mesh of p2p TESIs in each domain; ESP-MAC per domain no MAC address collisions in PBBN domains (multiple single-domain PBBNs) S-VID Translation locations PEB PNP UNI CEP S PEB2 PNP2 S UNI CNP

13 2. PBB I and PBB-TE network EVC(S-VLAN) via EC Type 2 PEB2 BC B IB-BEB2 CNP2 PNP2 IB-BEB2 BC B CNP2 S S S B(I) UNI B(I) BC B IB-BEB2 CNP2 S S B(I) BC B I B-BEB2 B(I) CEP CNP2 mp2mp B-VLAN or p2p TESI mp2mp B-VLAN or p2p TESI mp2mp B-VLAN or p2p TESI S-VID/I-SID Translation locations PEB PNP UNI CEP S PEB2 PNP2 S UNI CNP EVC = S-VLAN EC Type 2, “Service B- MAC” from UNI-N to UNI-N S-VID/I-SID Translation at PBBN domain boundaries (in CNP2) PBB I: few mp2mp B- VLANs in each domain; B-MAC per domain PBB-TE: full mesh of p2p TESIs in each domain; ESP-MAC per domain no MAC address collisions in PBBN domains (multiple single-domain PBBNs)

14 Layer stack PB + PBB-TE for EVC(C-VLAN) via EC Type 1 EVC EC (Type 1 and Type 2 ) ESP EC PHY EC PHY ESP EC PHY EC PHY ESP EC PHY EC PHY C-VID EC (link) I-SID S-VID ESP-VID ESP-MAC ESP-VID ESP-MAC ESP-VID ESP-MAC S-VID is optional; typically not present in a 1:1 case C-MAC

15 Layer stack PB + PBB-TE for EVC(S-VLAN) via EC Type 2 EVC EC ( Type 1 and Type 2) ESP EC PHY EC PHY ESP EC PHY EC PHY ESP EC PHY EC PHY EC PHY I-SID S-VID I-SID S-VID I-SID S-VID I-SID S-VID I-SID S-VID I-SID ESP-VID ESP-MAC ESP-VID ESP-MAC ESP-VID ESP-MAC S-VID I-SID S-VID I-SID S-VID Service B-MAC S-VID is optional; typically not present in a 1:1 case C-VID I-SID = S-VID+4096

16 Layer stack PB + PBB I for EVC(C-VLAN) via EC Type 1 EVC EC (Type 1 and Type 2 ) EC(BVLAN) EC PHY EC PHY EC(BVLAN) EC PHY EC PHY EC(BVLAN) EC PHY EC (link) PHY EC PHY C-VID B-MAC I-SID S-VID I-SID S-VID I-SID S-VID B-VID S-VID S-VID is optional; typically not present in a 1:1 case C-MAC

17 Layer stack PB + PBB I for EVC(S-VLAN) via EC Type 2 EVC EC ( Type 1 and Type 2) EC(BVLAN) EC PHY EC PHY EC(BVLAN) EC PHY EC PHY EC(BVLAN) EC PHY EC PHY EC PHY S-VID B-VID B-MAC I-SID S-VID I-SID S-VID I-SID S-VID I-SID S-VID I-SID S-VID I-SID S-VID I-SID S-VID I-SID Service B-MAC S-VID is optional; typically not present in a 1:1 case C-VID I-SID = S-VID+4096

18 3. PBB II network EVC(C-VLAN) via EC Type 1 PEB2 BC B IB-BEB2 CNP2 PNP2 B-BEB BC B CBP S I I B(I) UNI B(I) BC B B-BEB CBP I I B(I) BC B I B-BEB2 B(I) CEP CNP2 mp2mp B-VLAN EVC = C-VLAN EC Type 1 EC Type 1 over EC(BSI) in PBBN S-VID Translation at PBBN network boundary (in CNP2) I-SID Translation at PBBN domain boundaries (in CBP) PBB II: few mp2mp B- VLANs in each domain; B-MAC per network potential MAC address collisions in PBBN domains S-VID Translation locations PEB PNP UNI CEP S PEB2 PNP2 S UNI CNP I-SID Translation locations

19 4. PBB II network EVC(S-VLAN) via EC Type 2 PEB2 BC B IB-BEB2 CNP2 PNP2 B-BEB BC B CBP S I I B(I) UNI B(I) BC B B-BEB CBP I I B(I) BC B I B-BEB2 B(I) CEP CNP2 mp2mp B-VLAN EVC = S-VLAN EC Type 2, “Service B- MAC” from UNI-N to UNI-N EC Type 2 over EC(BSI) in PBBN S-VID Translation at PBBN network boundary (in CNP2) I-SID Translation at PBBN domain boundaries (in CBP) PBB II: few mp2mp B- VLANs in each domain; B-MAC per network potential MAC address collisions in PBBN domains S-VID Translation locations PEB PNP UNI CEP S PEB2 PNP2 S UNI CNP I-SID Translation locations

20 Layer stack PB + PBB II for EVC(C-VLAN) via EC Type 1 EVC EC (Type 1 and Type 2 ) EC(BVLAN) EC PHY EC PHY EC(BVLAN) EC PHY EC PHY EC(BVLAN) EC PHY EC PHY EC PHY EC(BSI) C-VID B-MAC S-VID I-SID B-VID S-VID I-SID S-VID is optional; typically not present in a 1:1 case C-MAC

21 Layer stack PB + PBB II for EVC(S-VLAN) via EC Type 2 EVC EC ( Type 1 and Type 2) EC(BVLAN) EC PHY EC PHY EC(BVLAN) EC PHY EC PHY EC(BVLAN) EC PHY EC PHY EC PHY S-VID I-SID B-VID S-VID I-SID Service B-MAC I-SID C-VID I-SID = S-VID+4096

22 EC Type 1 Tag EC Type 1 primitive parameters - destination_address - source_address - priority - drop_eligible - mac_service_data_unit = MSDU Type <> EC Type 2 OAM primitive parameters - destination_address (=B-DA) - source_address (=B-SA) - priority - drop_eligible - mac_service_data_unit = OAM PDU Type = MSDU S-VIDPCP DEI TPID = 88-a8 OAM PDU Type = S-VIDPCP DEI TPID = 88-a8 S-Tagged EC Type 1 primitive parameters - destination_address - source_address - priority - drop_eligible - mac_service_data_unit = S-Tagged EC Type 1 OAM primitive parameters - destination_address - source_address - priority - drop_eligible - mac_service_data_unit = Type <> 89-10

23 EC Type 2 Tag EC Type 2 primitive parameters - destination_address - source_address - priority - drop_eligible - mac_service_data_unit = C-DA C-SA MSDU Type = Type EC Type 2 OAM primitive parameters - destination_address - source_address - priority - drop_eligible - mac_service_data_unit = OAM PDU Type = C-DA C-SA MSDU Type S-VIDPCP DEI TPID = 88-a8 TPID = 88-E7 I-SIDPCP DEI Res2 0 Res1 I-SID = S-VID TPID = 88-E7 I-SIDPCP DEI Res2 1 Res1 I-SID = S-VID C-DA = B-DA C-SA = B-SA OAM PDU Type = S-VIDPCP DEI TPID = 88-a8 I+S-Tagged EC Type 2 primitive parameters -destination_address - source_address - priority - drop_eligible - mac_service_data_unit = I+S-Tagged EC Type 2 OAM primitive parameters -destination_address - source_address - priority - drop_eligible - mac_service_data_unit = TPID = 88-E7 I-SIDPCP DEI Res2 0 Res1 I-SID C-DA C-SA MSDU Type TPID = 88-E7 I-SIDPCP DEI Res2 0 Res1 I-SID C-DA = B-DA C-SA = B-SA OAM PDU Type = I-Tagged EC Type 2 primitive parameters -destination_address - source_address - priority - drop_eligible - mac_service_data_unit = I-Tagged EC Type 2 OAM primitive parameters - destination_address - source_address - priority - drop_eligible - mac_service_data_unit = (destination address = f(B-DA,DBD)