Etx Presentation Vienna Ts2013

Ether Access Technical Overview for TS 2013 Slide1

RAD’s Ether Access Technical OverviewEuropean Technical Seminar 2013


Agenda

• Introduction• Ethernet Access Main Features• Product Overview• ETX-5300A Technical Description• Workshop Applications• Value Proposition


Carrier Ethernet is a Service

• Carrier Ethernet is a standardized, carrier-class SERVICE defined by five attributes that distinguish Carrier Ethernet from familiar LAN based Ethernet

• It brings the compelling business benefit of the Ethernet cost model to achieve significant savings

Carrier Ethernet

• Scalability

• Standardized Services

• Service Management

• Quality of Service

• Reliability

Carrier Ethernet Attributes

Carrier Ethernet Defined


RAD “Service Assured Access” solution

• Demarcation and Aggregation solutions

• Same service look and feel over:– Fiber and Copper– Native Ethernet, SHDSL, PDH,

SDH

• Linear, Dual-hommed and Ring topologies

• E-LINE and E-LAN services• Synchronization over Packet

Access NetworkMetro/

Core

IP / MPLS

1/10 GbE Ring

First Mile AccessAggregation

10GbERing

GbE DSL

Cell-Site

1/10 GbE

FE/GbE

PDH

ETX-2xxA

ETX-203AM

ETX-2xxAETX-5300A

CustomerPremises

ETX-203AM

SDH/SONET

MSAN

MiNID

ETX-5300A

ETX-5300A

Complete Access solution

Service Assured Access


EtherAccess Feature-setEtherAccess – Enhanced L2 Ethernet capabilities over any access infrastructure • Connectivity Options

– EPL/EVPL services (MEF certified)– Flow based

• Traffic classification and mapping– CE VLAN ID, P-bit, DSCP, IP Precedence

• Enhanced QoS – Policing per service– Dual leaky bucket supporting CIR+CBS, EIR+EBS– Scheduling – Queues according to Strict priority or WFQ – Rate limit on the egress port - Conforms egress traffic to specific rate

• Enhanced service creation & assurance OA&M– IEEE 802.3-2005 (Link OAM)– IEEE 802.1ag/Y1731 End-to-End (CFM/PM)– Powerful L2/L3 loopback Allow multiple independent SLA monitoring instances– Integrated RFC-2544 Generator

• Resiliency: – Linear protection based on G.8031– Ethernet Ring protection based on G.8032

• Synchronization over Packet– Mature Sync-E and 1588-2008


Connectivity Options

E-Line Service - used to create• Ethernet Private Line (EPL)

• All to one bundling• Ethernet Virtual Private Line (EVPL)

• Service Multiplexing, EVC.CoS

E-Tree Service - used to create• EPL&EVPL services

• Broadcast networks for IP TV services• No connection between leafs

E-LAN Service - used to create• Single bridge instance per UNI (EPLAN)• Several (virtual) bridge instances per UNI

(EVPLAN)

Carrier Ethernet Network

CECE UNIUNI

CECEUNIUNI

CECE

UNIUNI

UNIUNI

Point-to-Point EVC


CECEUNIUNI

UNIUNI

CECEUNIUNI

CECEPoint-to-Multipoint EVC


CECEUNIUNI

UNIUNI

UNIUNI

CECEUNIUNI

CECEAny-to-any EVC


ETX Traffic Management

• Extremely flexible flow classification:– Port, VLAN-ID, P-bit, TOS-DSCP, EtherType, MAC SA/DA and IP SA/DA

• Hierarchical-QoS (HQOS) with flow level TM:– CIR/EIR Policing per flow for differentiated services – Assuring SLA in congested links - shaping per EVC or EVC.cos– Up to 8 queues per flow with Strict Priority and WFQ scheduling– Simplifying operation with powerful bandwidth profiles


Standards: OAM – Operation Administration & Maintenance

Type Span Scope Standard Status RADImplement.

IEEE 802.3ah(Clause 57) Link Single Segment Per UNI Finalized

IEEE 802.1ag-D8 Connectivity End-to-End Per EVC Finalized

ITU-T Y.1731 Service End-to-End Per EVC.CoS Finalized

Delay, Jitter, Packet Loss, Availability

Operator A Operator B

ITU-T Y.1731 (PM)

/802.3ag (CFM)

IEEE 802.3ah (EFM)


PEEVC

Real Time

Best Effort

UNI

PSNEVC 1

EVC 2

Branch A

Headquarters Real Time

Priority Data

Best Effort

UNI

PE

EVC

Branch B

Real Time

Priority Data

Best Effort

Priority Data

Real Time

Priority Data

Best Effort

ETX

IP DSLAM

Traffic Generation and loopback per RFC-2544

RFC-2544 Measurements to Ensure Service Parameters

• Used before service is commissioned to ensure service parameters

• Measures Latency, Loss and Throughput• Up to 8 sessions simultaneously

ETX

ETX


RFC-2544 CLI ReportsTest ID : <ID> Tested by : User NameProduct Name : <HW product name and version>Version Number : <firmware name and version>Serial Number : <serial number here >Date & Time : <Test time, format: day, dd/mm/yy hh:mm:sec>Profile Name : <e.g. - RFC 2544 Throughput Test - Per Port Binary Search>Number of Trials : < number of trials> Test Duration : <hh:mm:ss>

Test Parameters------------------------------------------------------------------------------------------------------------- Bind: MD:<MD id>, MA <MA id>, MEP <MEP id>, p-bit <pbit>, VLAN <vlan> Maximum Theoretical Rate: <Maximal defined Rate> [FPS] Duration: <Duration> Pattern: <Frame Pattern>, Frame Type <frame type> Opcode <Opcode>, mode <mode>Search resolution <Search resolution>, Tolerance <tolerance>, Trials <Number of trials>Learning Frames: Number of frames <number of frames>, Frequency <Frequency>

Throughput Report< Trial #>:========

Status: SUCCESS { or FAIL – Link down, OAM connectivity failure } Duration: <HH:MM:SS>

Frame Size [bytes] | 64 | 128 | 256 | 512 | 1024 | 1280 | 1518 | Theoretical maximum [fps] |10000 | 5000 | 2500 | 1250 | - | - | 500 |Throughput [fps] |9500 | 4900 | 2490 | 1250 | - | - | 500 | success [%] | 95 | 98 | 99.6 | 100 | - | - | 100 |

Packet Loss report:<Trial #>=============Status: SUCCESSFrame Size <64>Maximum theoretical rate <10000>Throughput of max | 100% | 90% | 80% | 70% | 60% |%success | 80% | 87% | 93% | 99% | 100% |

Latency Report< Trial #>:========Status: SUCCESS { or FAIL – Link down, OAM connectivity failure } Duration: <HH:MM:SS>Frame Size [bytes] | 64 | 128 | 256 | 512 | 1024 | 1280 | 1518 | Latency [ms] |50 | 45 | 42 | 37 | - | - | 24 |


RFC-2544 Reports on RADview

Frame loss

DelayMeasurementThroughput


Link Protection

• Link Aggregation Redundancy (802.3ad based)– Redundant connection to a single upstream device via two ports which

form a singe logical port– Link Aggregation Control protocol used to sync LAG members and identify

failures

• Dual homing – 1:1 connectivity to two different upstream devices for node redundancy

Switch criteria:– Loss Of Signal (LOS) indication– Manual commands

CPE

PSN

Dual homing

PSN

Single homing

CPE


Ethernet Linear Protection based on G.8031

• Protection as per ITU-T G.8031– Bidirectional 1:1 mode using APS messages

• Triggers - Port Signal loss, CCM LOC, ETH-AIS • Protection time

– Under 50ms protection time for a single protection group (multiple EVC per group)

– Up to 200ms protection time for 4 protection groups

Remote Customer Premises

Local Customer Premises

NTUCPEEthernet

RDI on CC message1 CC OAM

CC OAM

Automatic Protection Switching (APS)

PE NTU

2

CPEPE

Automatic Protection Switching (APS)


Fault PropagationBased on OAM Loss Of Connectivity

• Network failure propagation to user ports– User ports are turned off upon Loss-of Connectivity (LOC) or Remote

Defect Indication (RDI)• Customer equipment senses the failure and immediately reroutes to

alternative path– Shortens restoration time by triggering restoration much faster

than native routing protocols



NTUCPEEthernet

RDI on CC message1 CC OAM

CC OAM

State LOCReceive RDI

PE NTU

2

CPEPE


Fault Propagation Based on OAM Remote User Failure

• User port failure propagation to remote end:– Remote end port is turned off upon alarm indication from local end

• Customer equipment senses the failure and immediately reroutes to alternative path– Shortens restoration time by triggering restoration much

faster than native routing protocols



NTUCPEEthernet

1 CC OAM

CC OAMPE NTU

2

CPEPE


Layer 2 Protocol Tunneling (L2PT)

• Allowing full transparency to L2 control Protocols using different configurations:– Peer-supported L2 Protocols Data Units (PDU) frames– Discard the L2 control protocol frames– Tunnel: Pass through Layer-2 control frames– Including Vendor Specific L2CP frames



NTUCPE Ethernet

1

PE NTU

2

CPEPEL2 PDU L2 PDU


IEEE 1588v2 Support

• 1588v2 provides clock distribution over any packet network– Accurate timing - frequency lock ±16ppb

• 1588v2 slave for phase and frequency • 1588v2 encapsulation over IP\UDP with telecom profile

ETX

ETH

Transport Network:

ETH/IP/MPLS

PoP Site

RNC/4G GW

Sync-E

IEEE 1588-2008 (1588v2)

PE PE

Clock recovery based on 1588-2008 or Synchronous Ethernet

IP NodeB

IEEE 1588-2008Grandmaster Clock

TC


ETH

Mobile Demarcation with ETX-205A

• Mobile Demarcation Device – Timing Gateway & Demarcation• Per-flow SLA measurements• Multiple synchronization over packet standards • Support for legacy Cellular generations

Transport Network:ETH/IP/MPLS

PoP Site

RNC/4G Gateway

Sync-E

IEEE 1588-2008 (1588v2)

Clock recovery based on 1588-2008 or Synchronous Ethernet

External ClockSource

Sync-E ClockSource

IEEE 1588-2008Grandmaster Clock TC

PEPE

ETX

IP Node B

ETH

ETX

IP Node B

ETHIP Node B

BTSNxE1/T1

ETX


Products Overview


Basic NTUPort Base Service

Ethernet Service Aggregation Platform

10GE Interfaces10GE NTU10GE Ring

High End EDDFlow Base Service

Flexible classification

High End MDDFlow Base Service

Flexible classificationWith TDM Services

ETX Portfolio

Performance

Scale

ETX-202/102

ETX-203AX/AM

ETX-205A

ETX-220A

ETX-5300A

ETX-203AX

ETX-204A

ETX-26/36

SFP based NTU

MiNID

FE/GE nxGE nx10GE


ETX-203AX

• Carrier Ethernet Demarcation Device for:– SLA-based retail and wholesale Ethernet services

• Carrier grade design– Service and port level redundancy

• MEF CE 2.0 compliant EPL and EVPL Ethernet services

Network and User Interfaces1 or 2 network SFP interfaces (redundancy) Up to 4 or 5 user ports

ManagementOut of Band FE portLocal RS-232

PowerWide-range AC&DC PS


ETX-203AM All-In-One

FE/GbE Combo port uplink module

2 x 10/100/1000BT 2 x 100/1000Fx (SFP)

SHDSL EFM uplink module

– 4wire – 11.4 Mbps– 8wire – 22.8 Mbps

Ethernet over PDH uplink module

– 4/8xE1/T1– 1/2xT3

GFP/VCAT/LCAS

ManagementOut of Band FE portLocal RS-232

User interfaces: 4 FE/GE interfacesSFP or UTP

Modular UplinkETHSHDSLETH Over PDH/SDH


ETX-205A Physical View

• Advanced Carrier EthernetDemarcation Device for:– SLA-based retail and wholesale Ethernet services – 2G/3G/4G-LTE Mobile backhauling demarcation– Migration to packet networks with integrated Ethernet and E1/T1 services

Management ports•Out of band - Ethernet port•Local craft terminal - RS-232

SyntTop™ synchronization ports:•External in/out (T3/T4)•1PPS and ToD

6 FE/GE combo interfaces:•2 Network ports•4 User ports

Redundant power supplies:•AC: 100–240VAC, 50-60Hz•DC: 24/48VDC

4 E1/T1 PWE interfaces:• CESoPSN and SAToP• UPD/IP and MEF8• Flexible and accurate timing• 16 PWE per E1 port and CAS support


ETX-220A Layout

• 19”, 1RU shelf, Rack and wall mount• Environmentally Hardened Option: -20 to +65C

Redundant power supplies:•AC: 100–240VAC, 50-60Hz•DC: 24/48VDC

4 x 10GE XFP Based Ports•2 Network i/f 1:1•2 User i/f (only one is functioning in the first release)

Management ports•Out of band - Ethernet port•Local craft terminal - RS-232

H/W ready SyntTop™ synchronization ports:•RJ-45 and BNC i/f•External in/out (T3/T4)•ToD and 1PPS

4 x 1GE aggregation


ETX-5300A Front View Description

4 x 10GbE XFP fully redundant

Alarm output connector

Fan Module

Secondary Main Card

Primary Main Card

20 x 1GbE Elec I/O card

20 x 1GbE Opt SFP I/O card

Air Filter

Redundant PSU (DC/AC Outlet)

Clocking Interfaces


ETX-2xx Technical Description


ETX Forwarding Plane

EVC QUEUE BLOCK

WFQSP

8 Queueper EVC WRED

EVC Scheduler

EVC Shaper

Classifier

Flow 1 CIR/EIR Policing

WFQ

Port level Scheduler

Tx

Post Forwarding Editing

RxFlow N CIR/EIR

Policing

PreForwarding Editing

Forwarding engine (for E-LAN services)

8 or 31 Queue blocks per egress port

• Classify and map incoming packets into flows (EVC.CoS)• Police each flow (Green, Yellow,

Red)

• For E-LAN services (version 4.5) the forwarding engine is the bridge and MAC learning mechanism• For E-Line service, there is no

Forwarding engine. Egress port and queue block selection are set at the classification stage

• Up to 8 or 31 queue blocks per port with up to 8 queues per block• WRED at each queue• User configurable scheduling in queue

block• Shaper per queue block• Port level scheduler distributing BW

between all the queue blocks


EVC QUEUE BLOCK

WFQSP

8 Queueper EVC WRED

EVC Scheduler

EVC Shaper

Counter Locations in ETX

• Port level statistics are measured in ingress and egress ports in the MAC level • Flow level Statistics are measured before and after the flow policer,

green/Yellow dropped statistics are measured by WRED mechanism (queue level)

Classifier


WFQ


Tx


RxFlow N CIR/EIR

Policing




Location of Flow Statistics counters

Policer Counters

Dropped packet Counters

(Queue level)

Location of Port Statistics counters

Ingress PORT Counters

Egress PORT Counters


EVC QUEUE BLOCK

WFQSP

8 Queueper EVC WRED

EVC Scheduler

EVC Shaper

Summary – OAM and Counter locations in ETX

Classifier


WFQ


Tx


Rx

Down MEP

CCM

PM COS1PM COS7

UP MEP

CCM

PM COS1PM COS7

Flow N CIR/EIR Policing

Location of Flow Statistics counters

Location of Port Statistics counters



2544 Generator/Analyzer HW block


Ingress PORT Counters

Policer Counters

Dropped packet Counters

Egress PORT Counters


ETX-5300A Technical Description


Performance

100Gbps Full Duplex:• 100 Gbps Ingress• 100 Gbps Egress

Total of 100Gbps Ingress from all I/F (Main/IO)

Total of 100Gbps Egress from all I/F (Main/IO)

• Note: The maximum interface capacity ( 160Gbps ) exceeds the device performance.


Architecture and Data Path Scheme

2/4 10G

I/O

20G(2x10G)

CL

10GbE I/F

Packet

Engine

RXAUIMain B

2/4 10G

CL

RXAUIMain A

Fabric I/F 40Gbps

I/O I/O I/O

10GbE I/F

Packet

Engine

Active Active

Non Blocking

Packet engine per card acts like a single distributed engine

Packet Engine Broadcom (Dune) .MPLS support


ETX-5300A – SAP & SAG

• SAG (Service Aggregation Group) is a logical port (management entity) that represents a physical connection between I/O and main Ethernet cards.

• Each SAG includes 512 Service Attachment Points (SAPs)

ETX-5300A

Main Card10 GbE 10 GbE 10 GbE 10 GbE

I/O Card

1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18

1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8

1/20

1/9 1/10

1/19SAG 1/2

SAG 1/1

SAP 1/2/1-512

SAP 1/1/1-512


HW Architecture: ETH IO Structure

• IO card is actually build from 2 x 10GbE sections• 2 x 10 GbE internal ports for IO/Main

interconnection• This is reflected in some ETX-5300 features and

limitations:– Two SAG’s per IO , one for each 10G IO port group

(reflects internal io/main 10G port)– LAG group membership– Limitation: E-Line is not support between ports on

the same 10 port group

I/O

20G(2x10G)

2/4 10G

CL

RXAUIMain A

I/O

10 GbE I/F

Packet

Engine

1………10 11…….20


Data Path and Redundancy Scheme: LAG

2/4 10G

I/O

20G(2x10G)

CL

10 GbE I/F

Packet

Engine

RXAUIMain B

2/4 10G

CL

RXAUIMain A

Fabric I/F 40 Gbps

I/O I/O I/O

10 GbE I/F

Packet

Engine

Active Active

Inter Main card LAG

Main card fail

Inter IO card LAG

IO fail


Data Path and Redundancy Scheme: Ring

2/4 10G

I/O

20G(2x10G)

CL

10 GbE I/F

Packet

Engine

RXAUIMain B

2/4 10G

CL

RXAUIMain A

Fabric I/F 40Gbps

I/O I/O I/O

10 GbE I/F

Packet

Engine

Active ActiveMain card fail

Ring Port East

Ring Port West

Bridge


ETX-5300A Flows and Scale

Packet Engine

1

10

11

20

SAG

Flow Processing

Flow Processing

Flow Processing

Flow Processing

10G10G

10G

up to1K

up to 1K

10G

4K/Up to 8k

SAG - Service Aggregation GroupSAP - Service Attachment Point

512 SAP

2k flows

I/O-2

2k flows

2k flows

I/O-3

I/O-4

I/O-1

up to 1K

up to 1K

20 PORTS

20 PORTS

20 PORTS

Total=16k

SAPSAP

SAG

SAPSAP

512 SAP

1k flows1k rulesPer 10x1Gbe ports

1k flows1k rulesPer 10x1Gbe ports


Workshop Applications


Workshop Applications

• During the workshop you will create several applications:– ETX 5300A Out-of-Band (OOB) Management‑– E-Line – Ethernet Private Line Application– E-Line – Ethernet Virtual Private Line Application– E-LAN – In band Management from Central Location to Remote

CPEs


1. ETX-5300A OOB management

ETX-5300A

NMS

Untagged

Port 00B IP: 172.17.192.50

IP: 172.17.192.51

ETX 5300A Out-of-Band (OOB) Management.‑


Management Flow Configuration

There are several procedures for configuring management flow:• SVI (Switched Virtual Interface) – Defines a logical port used to

associate the router interface with the remote device (peer). • Flow Classifications – Define the types of traffic.• Flow – Defines the In/Out paths.• Router Interface – Makes the ETX accessible from different

access points. The router provides a logical path at L3.

SVI

RouterFlow mng_out

Untagged

Flow mng_inUntagged

NetworkUntagged

Interface


OOB Management Flows CLI Configuration

flow "mng_in" classifier "untagged" ingress-port mng-ethernet main-a/0 egress-port svi 99 no shutdown exit

flow "mng_out" classifier "all" ingress-port svi 99 egress-port mng-ethernet main-a/0 no shutdown exit


2. E-line – EPL Application

ETX-5300AETX-205A ETX-203A

PC PC

3 1 1/10 1/20 1 3

VLAN POP

PushC-VLAN 10

Untag Single VLANClassification

PushC-VLAN 10

VLAN POP

Untag


ETX 5300A – Logical Connection‑

• Outgoing Data Traffic from ETX 5300A I/O ETH Card Port 1/10 to ‑Port 1/20

ETX-5300A

ETX-205A

ETX-203AX

SAP1/1/2

1/10

1/20

flow “10_sap”

flow “sap_20”


ETX-5300A – Data Flows Configuration

flow 10_sap

classifier v10ingress-port ethernet 1/10egress-port sap 1/1/2 queue-map-profile

QueueMapDefaultProfile block 0/1no shutdownexit

flow sap_20classifier allingress-port sap 1/1/2egress-port ethernet 1/20 queue-map-profile

QueueMapDefaultProfile block 0/1no shutdownexit


3. E-Line Application – EVPL

• EVC.CoS application, with multiple data services that include the following capabilities:– Traffic management per EVC.CoS– OAM CFM monitoring per single EVC– Performance monitoring based on Y.1731 per EVC.CoS– RFC-2544 tests per EVC.CoS

ETX-5300A

ETX-205A ETX-203AXPC PC

3 1 1/9 1/19 1 3

VLAN POP

PushSP-VLAN 100

Single VLANClassification

PushSP-VLAN 100

VLAN POP

OAM CFM+PM

MEP1 MEP2

VLAN 2 p-bit 1VLAN 2 p-bit 2VLAN 2 p-bit 5

VLAN 2 p-bit 1VLAN 2 p-bit 2VLAN 2 p-bit 5


EVPL application – QoS

CoS 2

CoS 1

CoS 5 Real-TimeCIR: 5 Mbps; EIR: 0

Critical DataCIR: 2 Mbps; EIR: 8 Mbps

General DataCIR: 3 Mbps; EIR: 7 Mbps

UNI1 GbE

EVC10 Mbps

UNI

EVCCoS 5

CIR

EIR EIRCIR

CoS 1

EIR EIRCIR

CoS 2


EVPL Application Logical Diagram

S-VLAN 100.5

S-VLAN 100.1

S-VLAN 100.2CD

Traffic Generator

C-VLAN 2.5 ETX-5300A

GD

RT

C-VLAN 2.1

C-VLAN 2.2

Port 11/9 1/19

S-VLAN 100.5

S-VLAN 100.1

S-VLAN 100.2 CD

Traffic Generator

C-VLAN 2.5

GD

RT

C-VLAN 2.1

C-VLAN 2.2

Port 1

ETX-205A ETX-203AX

Port 3Port 3

Service Name Policer name CIR (Mbps) EIR(Mbps) PIR - Expected Rate (Mbps)

RT V2_rt 5 0 5CD V2_cd 2 8 10GD V2_cd 3 7 10


RFC Traffic Diagram

Port 1

OAM ServiceSP RT

100 100.5

Port 1

Traffic Generator

ETX-5300AETX-203AXETX-205A

OAM ServiceSP RT

100 100.5


4. E-LAN In-band Management

ETX-5300A

ETX-205A

ETX-203AX

Port 1/12Port 1/11

NMS

VLAN4094 Port 00B IP: 172.17.192.50

IP: 172.17.192.53

IP: 172.17.192.52

IP: 172.17.192.51VLAN 4094

Untagged


Bridge

• Bridge Entity enables E-LAN services• Bridge ports may be bounded to physical port or to Logical port. Bridge port

which is flow based should be bounded to SVI and connected to Physical ports with flows.

• VLAN aware bridge, configure for each VLAN port membership list needed.• When a bridge port is bounded to a physical port or any of the logical ports

except SVI, the forwarding to/from the BP and the Eth port will be done according to the VLAN membership. In case that the BP will be bounded to SVI, the forwarding to/from the BP and the SVI will be done through flows configuration.

• Features:– 256K MAC table– 32 Bridge instances– 128 BP per Bridge

User Port

User Port

ETX-5300A

BridgeNetwork

PortSVI

SVI

SVI

BP

BP

BP


ETX-5300A Logical Management Connection

ETX-5300A

RouterInterface

Bridge 1

SVI10

SVI4

SVI11

Port 1/11SAP

Port 1/12SAP

00B Interface

SVI99

SVI3

BP 3

BP 4

BP 11

BP 10


EtherAccess Value Proposition

Service Reach• ETHoFiber• ETHoPDH• ETHoSDH/

SONET• ETHoDSL

Traffic Management• Classification• Policing

(CIR/CBS, EIR/EBS)

• Scheduling• Rate

Limit/Shaping

• Services• EPL/EVPL• EPLAN• EVPLAN

Service Validation & Assurance• 802.3-

2005• 802.1ag• Y.1731• RFC 2544• G.8031

Control and Monitoring• SLA

assurance• Frame Delay• Delay

variation• Frame Loss• Availability


www.rad.com

Thank You For Your Attention

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Etx Presentation Vienna Ts2013