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ITU-T Study Group 15 Update for IEEE 802.1. Glenn Parsons [email protected] Three Liaisons to IEEE 802.1 from ITU-T Study Group 15. Ethernet Activities in SG15 To MEF, OIF, IEEE 802.1, IEEE 802.3 Optical Transport Networks & Technologies Standardization Workplan

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three liaisons to ieee 802 1 from itu t study group 15
Three Liaisons to IEEE 802.1 from ITU-T Study Group 15
  • Ethernet Activities in SG15
    • To MEF, OIF, IEEE 802.1, IEEE 802.3
  • Optical Transport Networks & Technologies Standardization Workplan
    • To MEF, T1, IETF, TIA, OIF, IEEE 802, IEC, ATMF
  • Ethernet Services
    • To IEEE 802.1
location of relevant information
Location of Relevant Information
  • Ethernet activities in SG15:

ITU-T LS15-23 January 2003

  • Optical Transport Networks & Technologies Standardization Workplan

ITU-T LS15-49 January 2003

  • Ethernet Services in G.ethsrv:

ITU-T Q12/15 WD 70 May 2003 (not yet sent)

  • ITU-T SG15 Liaisons and draft documents

ftp://sg15opticalt:[email protected]/tsg15opticaltransport/COMMUNICATIONS/index.html

itu t study group 15 ethernet activities
ITU-T Study Group 15Ethernet Activities
  • Working Party 1 – Question 2Network Access (Ethernet Access)
    • G.985 100 Mb point-to-point Ethernet Access – Requirements & Architecture
    • G.ces Circuit Emulation Services over Ethernet
  • SG 15 - Working Party 4 – Question 16 OTN Technology (Ethernet over Fibre)
    • G.capp CWDM Applications (including Ethernet)
  • SG 15 - Working Party 5 - Questions 1 & 19Projects and Promotion (Coordination)
    • OTNT SWP Optical Transport Networks and Technologies – Standardization Work Plan
    • ANT SWP Access Network Transport – Standardization Work Plan
itu t study group 15 ethernet activities contd
ITU-T Study Group 15Ethernet Activities (contd)
  • Working Party 3OTN Structure (Ethernet over Transport)
    • G.ethna Ethernet Layer Network Architecture Q12
    • G.eota Ethernet over Transport Architecture Q12
    • G.esm Ethernet over Transport – Ethernet Service Multiplexing Q12
    • G.ethsrv Ethernet over Transport – Ethernet Service Characteristics Q12
    • G.smc Service Management Channel – private line Q12
    • G.etnni Ethernet over Transport Network Node Interface Q11
    • G.euni Ethernet User to Network Interface Q11
    • G.eeq Ethernet over transport Equipment Functional Blocks Q9
    • G.eemf Ethernet Equipment Management Function Q9
    • G.efrw Ethernet Framework Q9
otnt standardization workplan http www itu int itu t studygroups com15 otn index html
OTNT Standardization Workplanhttp://www.itu.int/ITU-T/studygroups/com15/otn/index.html
  • Contains
    • list of standardization bodies relevant to optical standardization,
    • a list of known holes/overlaps/conflicts in current work,
    • lists of known Standards and Recommendations
    • a list of documents being actively worked
  • Under study
    • Description of ‘Ethernet over Transport’
itu t q12 15 g exxx draft recs
ITU-T Q12/15 G.exxx draft Recs.

Customer Services(e.g., MEF)

Ethernet Layer Architecture(G.ethna)

Network Services(G.ethsrv)

Management channel(G.smc)

XYZ transport(G.esm)

TDM transport(G.eota)

q12 15 g exxx draft recs consent october 2003
Q12/15 G.exxx draft RecsConsent October 2003

MEF Services

G.ethsrv

G.eota

G.ethna

G.872

G.803

next steps for g exxx series
Next steps for G.exxx series
  • G.ethna, G.ethsrv, G.eota
    • Editors will clean up and post new versions by June 10th
    • Submit as ITU-T SG15 White contribution by August 1st.
    • Discuss open issues by correspondence
    • Contributions to next meeting to propose final text
    • Consent at October SG15 meeting
  • G.esm, G.smc
    • Contributions expected
    • Discussion at October SG15 meeting
  • G.etnni, G.euni, G.eeq
    • Contributions expected
    • Discussion at October SG15 meeting
ethernet network architecture g ethna
Ethernet Network Architecture - G.ethna
  • Describes the functional architecture of Ethernet public networks using the modeling methodology described in ITU-T Rec. G.805 and G.809. (G.803, G.872 equivalent for Ethernet)
  • It defines high-level atomic functions. These atomic functions have to be further specified in the equipment specifications.
  • The bases for this first version of the recommendation are the Ethernet specifications in IEEE 802.1D, 802.1Q and 802.3.
ethernet mac eth layer network

ETH Trail

ETH_AP

ETH_AP

ETH

ETH

ETH FD

ETH FD

ETH FD

ETH_TFP

ETH_TFP

ETH FDF

ETH FDF

ETH FDF

ETH_FP

ETH_FP

ETH_FP

ETH_FP

ETH Link

ETH Link

ETH LF

ETH LF

Ethernet MAC (ETH) layer network

AP - access pointFD - flow domainFDF - flow domain flowFP - flow pointLF - link flowTFP - termination flow point

ethernet phy ety layer network

ETYn Trail

ETYn_AP

ETYn_AP

ETYn

ETYn

ETYn_TCP

ETYn_TCP

ETYn NC and ETYn LC

Ethernet PHY (ETY) layer network

AP - access pointNC - network connectionLC - link connectionTCP - termination connection point‘n’ in ETYn - represents interface types

ety eth adaptation

ETCn/ETH

ETYn/ETH

ETCn

ETYn/ETCn

ETY/ETH Adaptation

ETH - Ethernet MACETC - Ethernet codingETY - Ethernet PHY ‘n’ suffix - represents interface types

ethernet services g ethsrv
Ethernet Services - G.ethsrv
  • Defines a set of Ethernet service characteristics that are supported by the common architecture model of G.ethna
  • Describes Ethernet services from the network point of view (as opposed to the customer view of the MEF)
  • The services should describe the characteristics of the services, without referring to a particular network technology.
  • This document contains:
    • 1. Ethernet services
    • 2. Network architecture topology description required to support these services
definitions
Definitions
  • Private service
    • One or more ETH links within the transport network are allocated to transport the ETH_CI of a single customer’s service instance.
    • The ETH_CI in a private service either doesn’t compete for bandwidth
  • Virtual private service
    • One or more ETH links within the transport network are allocated to transport the ETH_CI of multiple service instances
    • The ETH_CI in a virtual private service competes for bandwidth with ETH_CI from another service instance of the network
definitions1
Definitions
  • Line service
    • One ETH link within the transport network is allocated to transport the ETH_CI of one customer service instance, between at most two flow points.
    • No additional ETH links can be added to the service
  • LAN service
    • One (or more) ETH link(s) within the transport network is allocated to transport the ETH_CI of one customer, between at least two flow points.
    • Additional ETH links can be added/deleted to/from this service
ethernet services
Ethernet Services
  • Ethernet Private Line (EPL)
    • Only this service will be fully described in the first version
  • Ethernet Virtual Private Line (EVPL)
  • Ethernet Private LAN (EPLan)
  • Ethernet Virtual Private LAN (EVPLan)
ethernet service attributes
Ethernet Service Attributes
  • Multiplexed Access
    • Yes, No
  • Interface type
    • 10BASE, 100 BASE, 1000BASE, 10GBASE-R
  • MAC learning
    • Yes, No
  • Traffic Profile
    • CIR, PIR, PBS
  • Policing
    • Drop, PAUSE
  • L2 Control Plane Processing
    • Process, Discard, Tunnel
epl type 1

CI = (un)tagged MAC frame stream

CIR

PBS

PBS

Customer

1

2

CO-CS

802.3

802.3

Network

Customer

Equipment

NRoS

PhIR

PhIR

1

2

802.3x

Carrier Network

Carrier

Carrier

Customer

802.3x

PAUSE

Equipment

Equipment

Equipment

PAUSE

WAN

LAN

P1

P2

(NP)

(NAP)

SDH

802.3

SDH

802.3

Carrier

Carrier

OTN

OTN

Equipment

EPL type 1
epl type 1 g 805 model

ETY/ETH

ETY/ETH

ETY/ETH

xx

/ETH

xx

/ETH

ETY/ETH

UNI

UNI

EPL type 1 - G.805 model
g ethsrv living list
G.ethsrv ‘living list’
  • EPLAN service characteristics
  • EVPL service characteristics
  • EVPLAN service characteristics
  • Multiplexed Access
  • Rate control (using PAUSE)
  • Service Provider Ethernet
  • MAC filtering
  • Ethernet OAM
  • Ethernet Service Management
ethernet over transport g eota
Ethernet over Transport - G.eota
  • Defines the assembly of G.ethna layer networks to satisfy the requirements defined in G.ethsrv, using particular atomic functions.
  • Contains mainly functional models describing these implementations. Particular attention given to describing architectures using multiple transport technologies.
  • The first version of this recommendation specifies the EoT architecture for point to point Ethernet Private Line services.
    • G.eota.1 point to point PL, G.eota.2 Private LAN,G.eota.3 VPLAN…..
  • Protocol and equipment specifications will be in separate Recomendations (e.g., G.eeq)
epl type 1 sdh architecture

ETH_CI

ETH_CI

GFP-F or LAPS

GFP-F or LAPS

ETYn/ETH

Sn-X-l/ETH

Sn-X-l/ETH

ETYn/ETH

encapsulation

encapsulation

ETYn

Sn-X-L

Sn-X-L

ETYn

Ethernet

Ethernet

ETYn_CI

ETY_CI

Physical

Physical

VCX

VCX

Sn-Xv/Sn-X-L

Sn-Xv/Sn-X-L

Interface

Interface

LCAS

LCAS

1

2

3

X

1

2

3

X

MAX

MAX

Sn

Sn

Sn

Sn

Sn

Sn

Sn

Sn

VC-n Sub Network

VC-n TCP

VC-n TCP

Group

A

Group

Z

connects

X

VC-n TCPs in TCP Group A

PROV

£

with X

VC-n TCPs in TCP Group Z (X

X

)

PROV

PROV

MAX

SDH

Network

£

£

£

£

«

«

Note - The X

VC-n Network Connections are between VC-n TCP A[i] and VC-n TCP Z[j], with 1

i

X

, 1

j

X

; e.g.

A[1]

Z[1],

A[3]

Z[2]

PROV

MAX

MAX

EPL type 1 - SDH architecture
ethernet services multiplexing g esm
Ethernet Services Multiplexing - G.esm
  • Describes a new layer network architecture supporting Ethernet services multiplexing over transport networks.
  • Requirement driven by services of G.ethsrv
  • Two parts:
    • functional and structural architecture of a Service Multiplexing Layer Network (was ‘XYZ layer’)
    • adaptation of Ethernet services, as defined by G.ethsrv, to this Layer Network.
g esm living list
G.esm ‘living list’
  • Do we need a new layer architecture at all?
  • Review the new requirements
  • Candidate technologies under study:
    • MPLS
    • Service Provider Ethernet (MAC-in-MAC)
    • GFP service multiplexing (Switched GFP-F)
service management channel g smc
Service Management Channel- G.smc
  • Defines a common architecture supporting management of Client Private Line Services (e.g., private line DSn/En, Ethernet and/or Storage).
  • Defines, from the service network view, management of the data service from edge to edge of the transport network, including the formats and protocols that are needed to perform the management tasks.
  • Defines the management parameters and the formats and protocols that are needed to perform the management tasks.
smc using poh

SLA

SLA

SP_B’s

NMS

NE

NNI

SP_B’s

CLE

NE

SP_B’s

Edge

NE

SP_A’s

NE

CPE

CPE

N/W A

N/W B

Sn-X

NMS

ETH/Enc

ETY/ETH

ETY/ETH

Enc/ETH

Enc

ETY

ETY

Enc

Sn-Xv/Enc

Enc/Sn-Xv

Sn-Xv

Sn-Xv

.

.

X

X

.

.

Sn-X

2

2

1

1

SMC [POH] inserted here (can be either GFP or LAPS)

Sn-X

Sn-Xv/Sn-X

Sn-Xv/Sn-X

Sn-X

SnSMC/Sn

SnSMC

SNC B

Access SNC

SNC A

SMC using POH
requests to ieee 802 1
Requests to IEEE 802.1
  • Invite comments and input to progress the Ethernet over Transport work
  • Request comparison of SG15 work to IEEE 802.1 work
  • Invite comments on Standardization work plan
  • Request specific review of G.ethsrv Ethernet service ‘L2 control frame processing’ attribute
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