1

Supporting VUNI in DRNI

Maarten Vissers2011-11-10

v01

v01: added multiple virtual UNI with hairpin

2

Introduction

The following slides analyse the ENNI DRNI within a Virtual UNI (V-UNI) scenario.

The ENNI with V-UNI application is defined in MEF28, and relevant text from MEF28 is copied in slide 3.

An ENNI with V-UNI example scenario is presented in slides 4 and 5, illustrating its data plane model with 802.1Q components. The example includes a Network Operator network deploying PBN and a VUNI Operator network deploying either PBN (slide 4) or PBBN (slide 5).

A ENNI with V-UNI application deploys the RCSI specified in 802.1Qbc. This service interface also supports non V-UNI ENNI applications. An example is presented in slide 6,

The data plane model of an ENNI DRNI with V-UNI example is presented in slide 7. The ENNI DRNI contains 2 x 2 nodes with 2 ENNI links. The associated layer stacks are presented in slide 8. Slides 7 and 8 identify the scope of the DRNI to be the S-VLAN Components attached to the E-NNI links. This scope is not aligned with the DRNI scope in axbq-haddock-multiple-drni-support-1011-v01.pdf.

3

Virtual UNIText from MEF 28, clause 3 “Scope and Key Concepts”

R-UNI aware of very basic service attributes, not aware of service details, e.g. # EVCs.

R-UNI maps all (C-Tagged, Prio-C-Tagged, Untagged) service frames to single OVC end point supporting UTA.Single BW profile & CoS

ENNI: an S-VID is used to map ENNI frames to the OVC end point supporting UTA.

Network Operator provides Port-based Service at R-UNI

Single BW profile & CoS

Network Operator provides S-Tagged Service at ENNI

4

Virtual UNIin terms of 802.1Q

SCNPPNP

CNPPNP

CNP PNP

CNP PNP

CNP PNP

SCNPPNP

CNPPNPPNP PNP

PNP PNP

PNP PNP

(R)UNI

Network Operator(e.g. PBN)

PAP

PAP

RCAP

PNP

CEP

PEP

PEP

PEP

CNP

PIP

CNP

PIP

CNP

PIP

CNP

VUNI Operator(e.g. PBN, PBBN)

SSS

C

S

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PNP

PNP

PNP

PNP

CBP

PNP

CBP

PNP

CBP

BPort-based

Service Interface

S-Tagged Service

Interface

C-Tagged Service

InterfaceV-UNI-N

Port-based Service

Interface

CBP

CBP

CBP

xxP C

S-EC1S-EC2S-EC3

707 4 0433 O-EC(3)SP-EC(4)

UNI-EC(0)

7

6

Link-EC(7)Link-EC(7)

7777

4

Link-EC(7)

77

3 3 34 37

7 CC

c6.9c8.5

SP-EC(7)

SP-EC(7)7 7

Link-EC(7)

7 S

c6.9c8.5

Example 1 with 3 C-VLAN EVCs (S-EC1..3) between UNI ports and 1 port-based EVC (S-EC4) between RUNI and VUNI

Alternative network technologies are: PBB(TE),

MPLS-TP, SDH, OTN

6

Link EC

Lin

k-EC

(7)

S-EC4

VUNI

ENNI

PNP

with or without B-VLAN

S-VLAN ECs

C-VLAN ECs

without B-VLAN

Link ECs

77

7C-VLAN ECs

S-VLAN/Link EC

xxPC

C

c6.9c8.5

CVID Forwarding

Alternative network technologies are: PBB-TE,

MPLS-TP, SDH, OTN

Alternatives for this B- Component are LSP-, VCn-,

and ODUk-Components

EC: Ethernet Connection, O: Operator, S: Subscriber, SP: Service Provider, (7): MA level 7

5

Virtual UNIin terms of 802.1Q

SCNPPNP

CNPPNP

CNP PNP

CNP PNP

CNP PNP

SCNPPNP

CNPPNPPNP PNP

PNP PNP

PNP PNP

(R)UNI

Network Operator(e.g. PBN)

PAP

PAP

RCAP

PNP

CEP

PEP

PEP

PEP

CNP

PIP

CNP

PIP

CNP

PIP

CNP

SSS

C

S

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PNP

PNP

PNP

PNP

CBP

PNP

CBP

PNP

CBP

BPort-based

Service Interface

S-Tagged Service

Interface

C-Tagged Service

InterfaceV-UNI-N

Port-based Service

Interface

CBP

CBP

CBP

xxP C

S-EC1S-EC2S-EC3

LinkEC s

707 4 0433 O-EC(3)SP-EC(4)

UNI-EC(0)

77

7

7

6

Link-EC(7)Link-EC(7)

7777

4

Link-EC(7)

77

3 3 34 37

7 CC

c6.9c8.5

SP-EC(7)

SP-EC(7)7 7

S

c6.9c8.5

Example 1 with 3 C-VLAN EVCs (S-EC1..3) between UNI ports and 1 port-based EVC (S-EC4) between RUNI and VUNI

Alternative network technologies are: PBB(TE),

MPLS-TP, SDH, OTN

6

C-VLAN ECs

S-VLAN ECs

B-VLAN ECs

Lin

k-EC

(7)

S-EC4

VUNI

ENNI

PNP

with or without B-VLAN

Link-EC(7)

7 B

c6.9c8.5

SO-EC(7) 7

c6.10c6.11

Link EC

C-VLAN ECs

with B-VLAN

S-VLAN/Link EC

I

O-EC(7) 7

DA

/SA

xxPC

C

c6.9c8.5

CVID Forwarding

VUNI Operator(e.g. PBN, PBBN)

Alternative network technologies are: PBB-TE,

MPLS-TP, SDH, OTN

Alternatives for this B- Component are LSP-, VCn-,

and ODUk-Components

EC: Ethernet Connection, O: Operator, S: Subscriber, SP: Service Provider, (7): MA level 7

6

Multi-operator Port-based Servicein terms of 802.1Q

SCNPPNP

CNPPNP

CNP PNP

CNP PNP

CNP PNP

SCNPPNP

CNPPNPPNP PNP

PNP PNP

PNP PNP

(R)UNI

Network Operator(e.g. PBN)

PAP

PAP

RCAP

PNP

CEP

PEP

PEP

PEP

CNP

PIP

CNP

PIP

CNP

PIP

CNP

SSS

C

S

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PNP

PNP

PNP

PNP

CBP

PNP

CBP

PNP

CBP

BPort-based

Service Interface

S-Tagged Service

Interface

ENNI-N

Port-based Service

Interface

CBP

CBP

CBP

xxP C

Lin

k-EC

(7)

700433 O-EC(3)SP-EC(4)

UNI-EC(0)

7

Link-EC(7)Link-EC(7)

7777

4

Link-EC(7)

77

3 3 34 37 3O-EC(3)

Example 2 with 1 multi-operator port-based EVC between UNI portsThis (non-Virtual UNI) multi-operator port-based EVC and the RUNI-VUNI port

based EVC in example 1 can both be supported on the ENNI.

Alternative network technologies are: PBB(TE),

MPLS-TP, SDH, OTN

xxPC

6

S-VLAN

LinkLink-EC(7)

7 S

c6.9c8.5

PNP

VUNI

ENNI

Normal ENNI path

with or without B-VLAN

Link

77

7C-VLAN

S-VLAN/Link

7 7

without B-VLAN

VUNI Operator(e.g. PBN, PBB)

Alternative network technologies are: PBB-TE,

MPLS-TP, SDH, OTN

Alternatives for this B- Component are LSP-, VCn-,

and ODUk-Components

EC: Ethernet Connection, O: Operator, S: Subscriber, SP: Service Provider, (7): MA level 7

7

Virtual UNI plus ENNI DRNI

SCNPPNP

CNPPNP

CNP PNP

PNP

CNP PNP

SCNPPNP

CNPPNP

PNP PNP

PNP PNP

PNP PNP

(R)UNI

Network Operator(e.g. PBN)

PAP

PAP

RCAP

PNP

CEP

PEP

PEP

PEP

CNPPIP

CNPPIP

CNPPIP

CNP

PNP

VUNI Operator

SS

S

C

S

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PNP

PNP

PNP

PNP

CBP

PNP

CBP

PNP

CBP

B

S-Tagged Service

Interface

CBP

CBP

CBP

xxP C

CNP PNP

PNP

CNP PNPS

PAP

PAP

RCAP

PNP

CEP

PEP

PEP

PEP

CNPPIP

CNPPIP

CNPPIP

CNP

PNP

S

C

S

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PNP

PNP

PNP

PNP

CBP

PNP

CBP

PNP

CBP

BCBP

CBP

CBP

PNP PNP

PNP PNP

PNP PNPS

CNP

CNP

PNP

PNP

PNPPNP PNP

PNP PNP

PNP PNP

SB

Intr

a-D

AS

(a)

ENNI 1

ENNI 2

Intra-D

AS

Intra-N

etwo

rk

Intra-Network (A)

Intr

a-N

etw

ork

(B

)

Intra-Network C)

Intra-Network C)

Intra-DAS (b)

Intra-DAS (b)

Intra-DAS (b)

Intra-DAS (b)

Hal

f D

AS

Hal

f D

AS

Supports DRNI protected &

unprotected ECs

Half D

AS

Half D

AS

ENNI DRNI between Network Operator and VUNI Operator networks should operate at the ENNI’s S-VLAN EC level. This implies that the DRNI is between the S-VLAN Components connected to the ENNI links.It also implies that there are Virtual V-UNI-N ports, consisting of two V-UNI-N ports as illustrated. Compare the Virtual V-UNI-N port with the Virtual CBP Port in an IB-BEB; functionality is the same.

Network sideDRNI

domain Network side

VUNI

ENNI

VUNI

Intra-DAS links may be supported via 802.3 link (Intra-DAS(a)) or via virtual link in the network (Intra-DAS(b)).

V-UNI-N:LAN with

N x C-VLANmapped intoM x S-VLAN

CBPLAN withN x BSI

mapped intoM x B-VLAN

Virtual V-UNI-N Port(same functionality as Virtual CBP Port)

Virtual PNP-PNP Port

xxPC

8

Link

Link

Link

S-VLAN Link

S-VLAN

DRNI location within Layer Stacks

C-VLAN

Link S-VLAN Link

Link Link Link

CNP PNP

CNP PNP

CNP PNP

SCNPPNP

CNPPNP

PNP PNP

PNP PNP

PNP PNP

(R)UNI

RCAP

PIPS SSS

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PNP

PNP

CBP

PNP

PNPB

xxPC

ENNI

CBP

CBP

Link Link

DRNI scope A

B-VLAN

Link

Alternative network layer technologies are: PBB-TE

ESP/TESI, MPLS-TP Transport-LSP, SDH VC-n, OTN ODUk

B-VLAN

Link

Ex

amp

le 1

Ex

amp

le 2

VUNI

PNP PNP

animated slide

Common S-VLAN ECs at both ends of DRNI

9

Link

Link

Link

S-VLAN Link

S-VLAN

DRNI location within axbq-haddock-multiple-drni-support-1011-v01.pdf

C-VLAN

Link S-VLAN Link

Link Link Link

CNP PNP

CNP PNP

CNP PNP

SCNPPNP

CNPPNP

PNP PNP

PNP PNP

PNP PNP

(R)UNI

RCAP

PIPS SSS

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PNP

PNP

CBP

PNP

PNPB

xxPC

ENNI

CBP

CBP

Link Link

DRNI scope B

B-VLAN

Link

Alternative network layer technologies are: PBB-TE

ESP/TESI, MPLS-TP Transport-LSP, SDH VC-n, OTN ODUk

B-VLAN

Link

Ex

amp

le 1

Ex

amp

le 2

VUNI

PNP PNP

animated slide

DifferentS-VLAN ECs at both ends of DRNI

10

DRNI scope discussion

axbq-haddock-multiple-drni-support-1011-v01.pdf (slide 9) and this presentation (slides 7/8) assume that the DRNI includes different sets of 802.1Q Components as illustrated in slides 7/8 (scope A) and 9 (scope B)

To be discussed is the right DRNI scope: A, B or other

11

Multiple VUNIs, including hairpin

12

Multiple Virtual UNIText from MEF 28, clause 3 “Scope and Key Concepts”

13

Appendix C/MEF28

14

Multiple Virtual UNI with Hairpin

SCNPPNP

CNPPNP

CNP PNP

CNP PNP

CNP PNP

SCNPPNP

CNPPNPPNP PNP

PNP PNP

PNP PNP

RUNI

Network Operator(e.g. PBN)

PAP

PAP

RCAP

PNP

CEP

PEP

PEP

PEP

CNP

PIP

CNP

PIP

CNP

PIP

CNP

VUNI Operator(e.g. PBN, PBBN)

SSS

C

S

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PNP

PNP

PNP

PNP

CBP

PNP

CBP

PNP

CBP

BPort-based

Service Interface !

S-Tagged Service

Interface

C-Tagged Service

InterfaceV-UNI-N

Port-based Service

Interface 2

CBP

CBP

CBP

xxP C

S-EC1S-EC2

707 4 0433 O-EC(3)SP-EC(4)

UNI-EC(0)

7

6

Link-EC(7)Link-EC(7)

7777

4

Link-EC(7)

77

3 3 34 3

77

CC

c6.9c8.5

SP-EC(7)

7

Link-EC(7)

7 S

c6.9c8.5

6

Link EC

Lin

k-EC

(7)

VUNI

ENNI

PNP

with or without B-VLAN

S-VLAN EC

Link ECs

77

7C-VLAN ECs

S-VLAN/Link EC

xxPC

C

c6.9c8.5

EC: Ethernet Connection, O: Operator, S: Subscriber, SP: Service Provider, (7): MA level 7

Hairpin

S-EC1S-EC2

707 4 0433 O-EC(3)SP-EC(4)

UNI-EC(0)

7

6

Link-EC(7)

77

4 3 3 34 3

6

Lin

k-EC

(7)

Link EC

77

7C-VLAN ECs

S-VLAN/Link EC

C

c6.9c8.5

S-EC1S-EC2C-VLAN ECs

Ha

irpin

S-EC3

S-EC4

15

Multiple Virtual UNI with Hairpin plus ENNI DRNI

SCNPPNP

CNPPNP

CNP PNP

PNP

CNP PNP

SCNPPNP

CNPPNP

PNP PNP

PNP PNP

PNP PNP

RUNI

Network Operator(e.g. PBN)

PAP

PAP

RCAP

PNP

CEP

PEP

PEP

PEP

CNPPIP

CNPPIP

CNPPIP

CNP

PNP

VUNI Operator

SS

S

C

S

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PNP

PNP

PNP

PNP

CBP

PNP

CBP

PNP

CBP

B

S-Tagged Service

Interface

CBP

CBP

CBP

xxP C

CNP PNP

PNP

CNP PNPS

PAP

PAP

RCAP

PNP

CEP

PEP

PEP

PEP

CNPPIP

CNPPIP

CNPPIP

CNP

PNP

S

C

S

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PNP

PNP

PNP

PNP

CBP

PNP

CBP

PNP

CBP

BCBP

CBP

CBP

PNP PNP

PNP PNP

PNP PNPS

CNP

CNP

PNP

PNP

PNPPNP PNP

PNP PNP

PNP PNP

SB

Intr

a-D

AS

(a)

ENNI 1

ENNI 2

Intra-D

AS

Intra-N

etwo

rk

Intra-Network (A)

Intr

a-N

etw

ork

(B

)

Intra-Network C)

Intra-Network C)

Intra-DAS (b)

Intra-DAS (b)

Intra-DAS (b)

Intra-DAS (b)

Hal

f D

AS

Hal

f D

AS

Half D

AS

Half D

AS

…

Network sideDRNI

domain Network side

VUNI

ENNI

VUNI

Virtual V-UNI-N Port

xxPC

Virtual V-UNI-N Port

Hairpin

Hairpin

Virtual Hairpin

16

C-VLAN

Link S-VLAN Link

Link

S-VLAN

DRNI location within Layer Stacks

C-VLAN

Link S-VLAN Link

Link Link Link

CNP PNP

CNP PNP

CNP PNP

SCNPPNP

CNPPNP

PNP PNP

PNP PNP

PNP PNP

(R)UNI

RCAP S SSS PAPCEPPEP

PEP

CNP

CNP

CNP C

PNP xxPC

ENNI

DRNI scope A

VUNI

PNP PNP

animated slide

Common S-VLAN ECs at both ends of DRNI

SCNPPNP

CNPPNP

xxPC

CEPPEP

PEP CCNP PAP

DRNI scope B

Different S-VLAN ECs at both ends of DRNI

17

Backup

18

CNP PNP

CNP PNP

CNP PNP

SCNPPNP

CNPPNP

PNP PNP

PNP PNP

PNP PNP

(R)UNI

CNP

PNPS SS

B

PIP

PNP xxPC

Functionality commonality between PEB/VUNI and IB-BEB

CNP PNP

CNP PNP

CNP PNP

SCNPPNP

CNPPNP

PNP PNP

PNP PNP

PNP PNP

(R)UNI

RCAP

PIPS SSS

PAPCEP

PEP

PEP

PEP

CNP

CNP

CNPC

PNP

PNP

CBP

PNP

PNPB

xxPC

ENNI

CBP

CBP

VUNI

PNP PNP

ISID based distribution

I

c6.11

BVLAN MEP

CVID based distribution

c6.9c8.5

c6.9c8.5SVLAN MEP

B-Component

I-Component

S-VLAN-Component

S-VLAN-/I- ComponentB-Component

DRNICBP

CBPPNP

Similar functionality in PEB/VUNI and IB-BEB following the component connected to the E-NNI

links

CBP

V-UNI-N:LAN with N x C-VLAN

mapped into M x S-VLAN

CBPLAN with N x BSI

mapped into M x B-VLANanimated slide