Common network architectures for PBB_ PBB-TE and EOTN networks

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Common network architectures for PBB_ PBB-TE and EOTN networks Powered By Docstoc
					   Common network architectures for PBB,
       PBB-TE and EOTN networks
                                   version 01

                               Maarten Vissers

                                   2011-05-12


v01 includes new slides 10 and 12:
Slide 10 presents the information in slide 9 in the form of 802.1Q primitive parameters.
Slide 12 presents the information in slide 11 in the form of 802.1Q primitive parameters.

                                                                                            1
   1. PBB and PBB-TE network
   EVC(C-VLAN) via EC(S-VLAN)
                                                                                               S-VID Translation locations


                                    UNI




                                                PEB
                                                                    CNP                                              CNP              CNP
                                                               S                                                                  S




                                                                          (I)B-BEB




                                                                                                              (I)B-BEB




                                                                                                                                            (I)B-BEB
                                    UNI CEP             PNP
                              PNP                                                                                                                         B(I)




                                                                                               BCB




                                                                                                                                                                 BCB
                                            S
                     IB-BEB



                                                        PIP                            B(I)           B(I)
                                                               I                                                                  I
               UNI
                                                I-BEB               CBP                                              CBP              CBP




                                                                                                                                        mp2mp B-VLAN
                                    UNI                                                mp2mp B-VLAN




                                                                                                                                         or p2p TESI
                                                                                        or p2p TESI
                                          CNP
                                                                                                                                                                       B(I)

• EVC = C-VLAN
• EC = S-VLAN                                                 UNI CEP                                                       CNP       CNP

• S-VID Translation at PBBN domain                                                                                                S




                                                                                                                 (I)B-BEB




                                                                                                                                               (I)B-BEB
                                                                              IB-BEB


  boundaries (in CNPs)
                                                                                                BCB




                                                                                                                                                                 BCB
                                                              UNI
• mp2mp B-VLANs or p2p TESIs in                                                         B(I)           B(I)                       I                       B(I)
  each domain
                                                              UNI CNP                                                       CBP        CBP
• no MAC address collisions in                                                         mp2mp B-VLAN
  PBBN domains (multiple single-                                                        or p2p TESI

  domain PBBNs)

                                                                                                                                                                              2
   2. PBB network
   EVC(S-VLAN) via EC(BSI)


                                     UNI




                                                 PEB
                                                                     CNP                                              CNP              CNP
                                                                S                                                                  S




                                                                           (I)B-BEB




                                                                                                               (I)B-BEB




                                                                                                                                             (I)B-BEB
                                     UNI CEP             PNP
                               PNP




                                                                                                BCB




                                                                                                                                                                              BCB
                                             S
                      IB-BEB



                                                         PIP                            B(I)           B(I)                                                            B(I)
                                                                I                                                                  I
                UNI
                                                 I-BEB




                                                                                                                                                        mp2mp B-VLAN
                                                                     CBP                                              CBP              CBP
                                     UNI                                                mp2mp B-VLAN

                                           CNP
                                                                                                                                                                                    B(I)

• EVC = S-VLAN
                                                               UNI CEP
• EC = BSI                                                                                                                   CNP       CNP

• I-SID Translation at PBBN domain                                                                                                 S




                                                                                                                  (I)B-BEB




                                                                                                                                                (I)B-BEB
                                                                               IB-BEB


  boundaries (in CBPs)
                                                                                                 BCB




                                                                                                                                                                              BCB
                                                               UNI
• mp2mp B-VLANs in each domain                                                           B(I)           B(I)                       I                                   B(I)
• potential MAC address collisions                             UNI CNP                                                       CBP        CBP
  in PBBN domains (multi-domain                                                         mp2mp B-VLAN
  PBBN)

                                                                                                I-SID Translation locations
                                                                                                                                                                                           3
   3. PBB network
   EVC(C-VLAN) via EC1(S-VLAN) over EC2(BSI)
                                                                                                 S-VID Translation location



                                     UNI




                                                 PEB
                                                                     CNP                                               CNP              CNP
                                                                S                                                                   S




                                                                           (I)B-BEB




                                                                                                                (I)B-BEB




                                                                                                                                              (I)B-BEB
                                     UNI CEP             PNP
                               PNP




                                                                                                 BCB




                                                                                                                                                                         BCB
                                             S
                      IB-BEB



                                                         PIP                            B(I)            B(I)                                                      B(I)
                                                                I                                                                   I
                UNI
                                                 I-BEB
                                                                     CBP                                               CBP              CBP
                                     UNI                                                       B-VLAN




                                                                                                                                                         B-VLAN
                                           CNP
                                                                                                                                                                               B(I)

• EVC = C-VLAN
                                                               UNI CEP
• EC1 = S-VLAN, EC2 = BSI                                                                                                     CNP       CNP

• S-VID Translation at PBBN                                                                                                         S




                                                                                                                   (I)B-BEB




                                                                                                                                                 (I)B-BEB
                                                                               IB-BEB


  network boundary (in CNP)
                                                                                                  BCB




                                                                                                                                                                         BCB
                                                               UNI
• I-SID Translation at PBBN domain                                                       B(I)            B(I)                       I                             B(I)
  boundaries (in CBPs)                                         UNI CNP                                                        CBP        CBP
• mp2mp B-VLANs in each domain                                                                 B-VLAN
• potential MAC address collisions
  in PBBN domains (multi-domain)
                                                                                                 I-SID Translation locations
                                                                                                                                                                                      4
   4. EOTN network
   EVC(C-VLAN) via EC(S-VLAN)
                                                                                        S-VID Translation locations



                                    UNI




                                                PEB
                                                                    PNP
                                                               S
                                    UNI CEP             PNP




                                                                          T(E)B




                                                                                                           TB
                              PNP




                                                                                         OXC




                                                                                                                               OXC
                                            S                                                        ONP           ONP
                     IB-BEB



                                                        PIP                       S              S                         S
                                                               I
               UNI
                                                I-BEB
                                                                    ???
                                    UNI                                           p2p ODUk




                                                                                                                p2p ODUk
                                          CNP
                                                                                                                                     S

• EVC = C-VLAN
                                                              UNI CEP
• EC = S-VLAN
• S-VID Translation at EOTN
                                                                            TEB




                                                                                                           TB
  network boundary (in ONP and
                                                                                          OXC




                                                                                                                               OXC
                                                              UNI                                    ONP           ONP
  PNP)                                                                            S              S                         S
• p2p ODUk connections in each                                UNI CNP
  domain                                                                              p2p ODUk
• no MAC address collisions (no
  PBBN domains)

                                                                                                                                         5
EC frame tagging in PB, PBB, PBB-TE, EOTN



     Network                    EC type 1 frame tag                    EC type 2 frame tag
PB + PBB I                              S-Tag                             To be defined
(PEB, PB, IB-BEB,
BCB only)            Note: in B-VLAN an I-Tag or S+I-Tag is used
PB + PBB II                             S-Tag                                 I-Tag
(PEB, PB, IB-BEB,
TB-BEB, I-BEB, B-    Note: Inside PBB network the EC frames are
BEB, BCB)           carried inside a 2nd EC frame, which is I-Tagged

PB + PBB-TE                             S-Tag                             To be defined
(PEB, PB, IB-BEB,
BCB)                   Note: in ESP an I-Tag or S+I-Tag is used
EOTN                                    S-Tag                             To be defined
(TEB,TB, OTN XC)


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
                                                                                             6
EC awareness in PB, PBB, PBB-TE, EOTN



     Network        EVC-to-EC   EC MEP/MIP   EC AIS/LCK   EC-to-server
                     mapping     functions    insertion    mapping
PB + PBB I            PEP          CNP          CNP          CNP
(PEB, PB, IB-BEB,     CNP          PIP          PIP          PIP
BCB only)                          PNP          PNP          PNP
PB + PBB II           PEP          CNP          CNP          CNP
(PEB, PB, IB-BEB,     CNP          PIP          PIP          PIP
TB-BEB, I-BEB, B-     PIP          CBP          CBP          CBP
BEB, BCB)             CBP          PNP          PNP          PNP
PB + PBB-TE           CEP          CNP          CNP          CNP
(PEB, PB, IB-BEB,     CNP          PIP          PIP          PIP
BCB)                               PNP          PNP          PNP
EOTN                  CEP          CNP          PNP          PNP
(TEB,TB, OTN XC)      CNP          PNP          ONP          ONP
                                   ONP



                                                                         7
Analysis of EC Type 2 Tagging options



 For deployment in PB+PBB I, PB+PBB-TE and EOTN




                                                  8
Untagged EC Type 2 frame format


                         B-DA              Untagged EC Type 2 frames are EVC
                        B-SA
                                           frames with additional MAC Header
                     Type = 89-10
   C-DA                  C-DA              including TYPE (89-10), B-SA, B-DA
   C-SA                  C-SA              fields
   Type                  Type
  MSDU                  MSDU


EVC Frame     Untagged EC Type 2 Frame     Format is present at input/output
               (= untagged BSI Frame)
                                           ports of EC MEP and MIP functions



                         B-DA              Untagged EC Type 2 OAM frames are
                         B-SA              OAM PDUs with additional MAC
                      Type = 89-02
                       OAM PDU
                                           Header including TYPE (89-02), B-SA,
                                           B-DA
            Untagged EC Type 2 OAM Frame



                                                                                  9
      Slide 9 in 802.1Q primitive format

                                                                 The “frame” formats presented in
                                EC Type 2 primitive parameters
                                - destination_address (=B-DA)
                                                                 slide 9 represent the ETH_AI_D
                                    -source_address (=B-SA)      and ETH_CI_D information on
   EVC primitive parameters        - mac_service_data_unit =     ETH_AP, ETH_TFP and ETH_FP
- destination_address (=C-DA)             Type = 89-10
   - source_address (=C-SA)                  C-DA
                                                                 reference points within ITU-T’s
   - mac_service_data_unit =                 C-SA                Ethernet functional model.
             Type                            Type
            MSDU                             MSDU                The 802.1Q equivalent information
                                                                 are the primitive parameters
                                                                 mac_service_data_unit,
                                                                 source_address and
                                                                 destination_address as illustrated
                            EC Type 2 OAM primitive parameters   on the left.
                               - destination_address (=B-DA)
                                  - source_address (=B-SA)
                                  - mac_service_data_unit =      Note: The ETH_xI_D (x = A,C) is
                                          Type = 89-02           complemented by e.g. ETH_xI_P
                                           OAM PDU               (priority parameter), ETH_xI_DE
                                                                 (drop_eligible parameter),
                                                                 ETH_AI_TSF, ETH_AI_TSD,
                                                                 ETH_CI_SSF (no equivalent
                                                                 primitive parameters in 802.1Q)
                                                                                                      10
  Tagged EC Type 2 frame format alternatives
                                                                                             B-DA
                                                                                             B-SA
                         B-DA                           B-DA                     TPID = 88-a8
                                                                                                                There are three




                                                                          DEI
                 B-SA                                   B-SA        PCP                             S-VID
              TPID = 88-E7                           TPID = 88-a8                TPID = 88-E7                   EC Type 2
                Res1




                                                                                     Res1
                                                                          DEI
                                               DEI
PCP         0                    I-SID   PCP               S-VID    PCP         0                       I-SID
      DEI




                       Res2                                                                 Res2

                         I-SID                       Type = 89-10         I-SID = S-VID + 4096                  frame tagging
                         C-DA                           C-DA                      C-DA
                         C-SA                           C-SA                                 C-SA
                                                                                                                alternatives
                         Type                           Type                                 Type

                         MSDU                           MSDU                                 MSDU
                                                                                                                1. I-Tagging
                                                                                                                2. S-Tagging
 I-Tagged EC Type 2                       S-Tagged EC Type 2        I+S-Tagged EC Type 2
       Frame                                    Frame                      Frame                                3. I+S-Tagging
                                                                          B-DA = f(B-DA,DBD)
                                                                                              B-SA
      B-DA = f(B-DA,DBD)                                                            TPID = 88-a8




                                                                           DEI
                   B-SA                                             PCP                    S-VID
                TPID = 88-E7                                                        TPID = 88-E7
                  Res1




                                                                                      Res1
        DEI




                                                                           DEI
PCP           0          Res2    I-SID                   B-DA       PCP          0           Res2       I-SID
            I-SID = f(ETH_FP)                            B-SA             I-SID = S-VID + 4096
                C-DA = B-DA                          TPID = 88-a8                   C-DA = B-DA
                                               DEI




                C-SA = B-SA              PCP               S-VID                    C-SA = B-SA
                Type = 89-02                         Type = 89-02                   Type = 89-02
                       OAM PDU                        OAM PDU                           OAM PDU



  I-Tagged EC Type 2                      S-Tagged EC Type 2        I+S-Tagged EC Type 2
      OAM Frame                               OAM Frame                  OAM Frame
                                                                                                                                  11
      Slide 11 in 802.1Q primitive format
                                                                I+S-Tagged EC Type 2
                                                                 primitive parameters
       I-Tagged EC Type 2            S-Tagged EC Type 2    - destination_address (=B-DA)
      primitive parameters          primitive parameters      -source_address (=B-SA)
- destination_address (=B-DA) - destination_address (=B-DA) - mac_service_data_unit =
    -source_address (=B-SA)       -source_address (=B-SA)             TPID = 88-a8
   - mac_service_data_unit =     - mac_service_data_unit =                               The “frame” formats




                                                                                     DEI
                                                               PCP           S-VID
                  TPID = 88-E7                              TPID = 88-a8                    TPID = 88-E7               presented in slide 11
                    Res1




                                                                                                Res1
                                                                                     DEI
                                                      DEI
   PCP          0                    I-SID      PCP               S-VID       PCP          0                   I-SID   represent the ETH_AI_D
          DEI




                           Res2                                                                        Res2

                             I-SID                          Type = 89-10            I-SID = S-VID + 4096
                                                                                                                       information on a server
                             C-DA                              C-DA                         C-DA
                                                                                                                       layer ETH_AP reference
                             C-SA                              C-SA                                     C-SA
                             Type                              Type                                     Type           points within ITU-T’s
                             MSDU                              MSDU                                     MSDU
                                                                                                                       Ethernet functional
                                                                                                                       model.

                                                                                I+S-Tagged EC Type 2                   The 802.1Q equivalent
                                                                             OAM primitive parameters                  information are the
       I-Tagged EC Type 2                                                       - destination_address                  primitive parameters
  OAM primitive parameters                                                          (=f(C-DA,DBD)
     - destination_address                                                                                             mac_service_data_unit,
                                                                              -source_address (=C-SA)
          (=f(C-DA,DBD))                                                                                               source_address and
                                                                             - mac_service_data_unit =
   -source_address (=C-SA)                          S-Tagged EC Type 2                         TPID = 88-a8            destination_address as
  - mac_service_data_unit =                     OAM primitive parameters                                               illustrated on the left.
                                                                                      DEI
                                                                               PCP                    S-VID
                    TPID = 88-E7             - destination_address (=B-DA)                     TPID = 88-E7
                                                 -source_address (=B-SA)
                      Res1




                                                                                                 Res1
            DEI




                                                                                      DEI

    PCP           0          Res2    I-SID                                    PCP           0           Res2   I-SID
                I-SID = f(ETH_FP)               - mac_service_data_unit =            I-SID = S-VID + 4096
                    C-DA = B-DA                             TPID = 88-a8                       C-DA = B-DA
                                                      DEI




                    C-SA = B-SA                 PCP               S-VID                        C-SA = B-SA
                    Type = 89-02                            Type = 89-02                       Type = 89-02
                           OAM PDU                           OAM PDU                               OAM PDU


                                                                                                                                                  12
S-Tagged EC Type 2 implications in PB,
PBB I, PBB-TE, EOTN networks

New UNI-N port is to be specified to support this format
    Today’s NID devices do not support MAC-in-MAC encapsulation
    Next gen NID device can include this MAC-in-MAC encapsulation
     format with S-Tagged EC

NNI ports with EC awareness can support this format
    NNI ports: CNP, PNP, PIP, ONP



NNI ports can treat the EC Type 1 and EC Type 2 signals as a
single EC signal type; this behaviour is consistent with NNI
requirement to be agnostic to the type of client encapsulation



                                                                     13
I+S-Tagged EC Type 2 implications in PB,
PBB I, PBB-TE, EOTN networks

UNI-N and NNI ports need to distinguish between EC Type 1
and EC Type 2 signals; EC Type 1 and 2 signals require
different tagging
      Tag type to be administered on a per S-VID (EC) basis
      Violates requirement that NNI is agnostic to client mapping
      EC Type 1 MEP/MIP will not be able to detect EC Type 2 OAM
      EC Type 2 MEP/MIP will not be able to detect EC Type 1 OAM

New UNI-N port is to be specified to support this format
    Today’s NID devices do not support MAC-in-MAC encapsulation
    Next gen NID device can include this MAC-in-MAC encapsulation
     format with I+S-Tagged EC

NNI ports with EC awareness do not support this format
    CNP, PNP, PIP, ONP need to be extended with I+S-tagging
     capability, configurable on a per S-VID basis
                                                                     14

				
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