foundation for next-generation transport

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© 2010 Cisco Systems, Inc. All rights reserved. Cisco Confidential 1 Foundation for Next-Generation Transport Cisco Carrier Packet Transport System OTBU PLM Team Optical Transport Business Unit

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Page 1: Foundation for Next-Generation Transport

© 2010 Cisco Systems, Inc. All rights reserved. Cisco Confidential 1

Foundation for Next-Generation Transport

Cisco Carrier Packet

Transport System

OTBU PLM Team

Optical Transport Business Unit

Page 2: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 22

Multi-pointStrict SLA

SP Services/Content

Third-Party Services/ Content

NationalData Center/Cloud/VHO

NationalData Center/Cloud/VHO

RegionalData

Center/VSO

RegionalData

Center/VSOEdge

Metro(Access/Agg)

Business

Core

Page 3: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 3

Multi-pointStrict SLA

SP Services/Content

Third-Party Services/ Content

NationalData Center/Cloud/VHO

NationalData Center/Cloud/VHO

RegionalData

Center/VSO

RegionalData

Center/VSOEdge

Core

The Challenges?

Business

Trust + Savings + Agility

Lack of Confidence

Rising Costs

Limited Flexibility

SavingsCapEx & OpEx reduction

Green

TrustTransport quality

Familiar Ops

AgilityTime-to-revenue

Adaptable service models

Metro(Access/Agg)

What’s Needed?

Page 4: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 44

Packet

Technology

Transport

Technology

Metro (Access/Agg)

Uniquely AgileEstablished + New Services,

Industry-first MPLS-TP

Unmatched TrustResilient, Preserves Transport Ops,

Best-in-class A to Z Management

Foundation for Next-Generation Transport

Exceptional Savings60% reduction in Space / Power,

Industry’s greenest POTS platform

Metro (Access/Agg)

CPT 600CPT 50

CPT

200

Page 5: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 5

Feature Rich, Carrier Class and Manageabilityo Advanced Standard Based MPLS-TP

o Innovative Distributed Satellite Architecture

o Fully CE and IP/MPLS support (Unified-MPLS)

o Common Packet + Optical Network Management

Mobile

Backhaul

FTTX &

TDM

Ethernet

Services

MPLS-TP DWDMEthernet OTN

CPT 600

CPT 200

IP/MPLS

80KM

Co-Located

Remote

CPT 50

CPT 50

Page 6: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 66

Feature Rich, Carrier Class and Manageabilityo Advanced Standard Based MPLS-TP

o Innovative Distributed Satellite Architecture

o Fully Carrier Ethernet and IP/MPLS supported

o Runs CTC, over 10 years of Network Management Experience

Based on over 10 years of Cisco Optical Transport Experience

Green Packet Transport ResiliencyEnd-to-End

Manageability

Space & Power

Optimized

Standard Base MPLS-

TP

Rich Service Features

(Video Optimization)

Fully Redundant Power

Architecture

Fully Redundant Software

Architecture

Fully Redundant Fan

Architecture

> 50ms Link Protection

> 50ms Node Protection

> 50ms Network Protection

A to Z Point and Click

Provisioning &

Maintenance

Industry standard CLI

Cisco CPT 600

Cisco CPT 200

Carrier Class

Cisco CPT 50

Page 7: Foundation for Next-Generation Transport

© 2010 Cisco Systems, Inc. All rights reserved. Cisco Confidential7

CPT Hardware Overview

Applications

Page 8: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 88

Applications – TDM Lease Line, Ethernet Lease Line, Cell Tower Back-Haul, Residential,

Smart Grid Utility, Data Center Interconnect & Cloud Based

CPE• MWR

• NG-MWR

• TES 301

Aggregation MPLS

Network

MPLS-TP Aggregation

IP/MPLS

Core

Business

Corporate

Residential

STB

2G/3G/4G Node

RBS

CPT 50

CPT 50

Access Aggregation Core

Any Access Technology

Mapped into MPLS-TP

Legacy

Utility

IP/MPLS

Cisco Prime E2E Management

Aggregation

Node

Unified MPLS

7600, ASR 9K

CRS-1/3CPT 50

NGMWR

TES 301

ELINE, ELAN, TDM

Transport Pre-

Aggregation

• CPT 50

w/Edge

DWDM

Cloud Service

Transport Aggregation

• CPT 200 w/MSTP

• CPT 600 w/MSTP

PE Edge

• ASR9k

• 7600

w/MSTP

Core

• CRS 1/3

w/MSTP

Cloud

• EOS

• Umi

• Webex

Cloud Service

CPT 200/600

Architectural Elements- Unified MPLS, E2E Management, Integrated Packet Transport,

TDM, & DWDM

Page 9: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 99

Ethernet Private Line Services

Scaling Services for Growth

Baseline:

Service Type: EPL

Network Scale: 240G

Traditional MSPP Network

Highlights:

• A single MSPP Network can only

handle 20G of EPL.

• Need to replicate MSPP Network

Build 12 times to reach 240G

• Equals High CapEx & OpEx

• Cost Per G ~$28K

• 708 RU’s

• 41Kwatts

CPT Network Architecture

CPT

Satellites

Architecture

Highlights:

• A Single CPT Architecture

• Optimized CapEx & OpEx

• Cost Optimized Per G ~$2K

• Space Optimized 14 RU’s

• Power Optimized 3Kwatts

Page 10: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 1010

Fiber to the Home Services

Scaling Services for Growth

1

PONAccess

CO

Passive Splitter

Pro: Fiber Consolidation

Con: BW Constrained

2

FTTHAccess

CO

Home-Run from CO to each user

Pro: Bandwidth Scale

Con: 35% Fiber Mgt. space

overhead in CO

3

CPT EthernetAccess

CO

Home-Run from CO to each user

Pro: Fiber Consolidation

Pro : Bandwidth Scale

98% Fiber Space Savings and CO Fiber

Management Optimization

Page 11: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 1111

Connectivity Service

SP Transport Network

SYD

10

Mbps

SFO

10

Mbps

Transport and Packet Services

Preserve Transport Trust + Enhance Service Richness

Core /

Edge

Connectivity Service$ / Gig, Fixed, Declining Margins

1

Increase $ / OfferConnectivity + Value-Add,

Hosted TelePresence Services

Boost Margins

3

2 Protect RevenuesStrict SLAs: Connection-oriented,

In-band OAM, <50 ms

Improve Efficiencies App QoS, Tunable bandwidth, Stat

Mux gains

4

2

Cloud Service

4

1

CPT

Satellites

AMS

20

Mbps

3

IP/MPLS

MPLS-TP

Metro

(Access/Agg)

Page 12: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 1212

Aggregation / Access

TDM /

ATM

Regional Data-Center

Mobile Services

1

Increase $ / Offer Lossless Mobile Video,

Location Based Services

3

2 Video SMS / Calls ExplodeNative Packet, Multi-point, Inefficient

backhaul, Mbps, Device refresh < 2yrs

Elastic TransportLocally-centric, Packet-switched,

Tunable Bandwidth

Scaling Services Flexibly for Growth

Aggregation / Access

CPT

RNC / MME

Core /

Edge

Simple Calls, SMSMajority stays local- Metro Area,

Centrally backhauled, Kbps, TDM

1

2

Satellites

3

2.5G 4G

3G3G

4 Built-to-lastSimultaneous Any-G

4

Page 13: Foundation for Next-Generation Transport

© 2010 Cisco Systems, Inc. All rights reserved. Cisco Confidential13

CPT Hardware Overview

Product Overview

Page 14: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 1414

Field Replaceable Redundant Power Supplies

• DC and AC Power Options

Field Replaceable Fan Tray

• Redundant Fans

Redundant Shelf Controller

• Redundant Internal Stratum 3 Timing

• Redundant Database Backup

Field Replaceable LCD

• Viewable Shelf Management

• Redundant Database Backup

Field Replaceable Electronic Connection Unit

• Bits In/Out Timing, External Alarm, USB, EMS, ToD/PSS

Packet Transport Module

• 4x10GE UNI/NNI/CPT 50 Inter-Connect

• Full Line Packet Processing and Traffic Management

Cable Guide & AirFilter

• Fiber or Copper Cable Management

• Field Replaceable AirFilter

Packet Transport Fabric

• 2x10GE UNI/NNI/Satellite Inter-Connect

• 2x10GE G.709 Enabled

• 256G Active-Active Switch Fabric

• Full Line Rate Packet Processing and Traffic Management

6 RU ANSI & ETSICompliant

Page 15: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 1515

Field Replaceable Redundant Power Feeds

• DC and AC Power Options

Shelf Controller

• Redundant Internal Stratum 3 Timing

• Redundant Database Backup

Field Replaceable Fan Tray & LCD

• Redundant Fans

• Viewable Shelf Management

• Redundant Database Backup

Cable Guide & AirFilter

• Fiber or Copper Cable Management

• Field Replaceable AirFilter

Packet Transport Fabric

• 2x10GE UNI/NNI/Satellite Inter-Connect

• 2x10GE G.709 Enabled

• 160G Active-Active Switch Fabric

• Full Line Rate Packet Processing and Traffic Management

Field Replaceable Electronic Connection Unit

• Bits In/Out Timing, USB, & EMS

2 RU ANSI & ETSICompliant

Page 16: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 1616

Redundant Power Feeds

• AC, -24vDC, & -48vDC Power Options

44xGE UNI

• Full Line Rate Packet Processing and Traffic Management

• Pay As You Grow Licensing (11port Increments)

Field Replaceable Fan Tray

• Redundant Fans

• ToD/PSS Output

• Bits Out

4x10G Inter-Connect Ports

• Plug-n-Play In-Band Management

• Automatic Discovery and Provisioning

• Co-Located or Remote Distribution

Industrial Temp Rated

• -40C to +65C Operational Temperature

• -40C to +70C Storage Temperature

1 RU ANSI & ETSICompliant

LEDs

Page 17: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 1717

Packet Transport Fabric Packet Transport Module Packet Transport Fabric (PTF)

Full Line Rate Packet Processing & Traffic Management

256G Switch Fabric

2x10GE G.709 Enable XFP

2x10GE UNI/NNI/Satellite Interconnect

Packet Transport Module (PTM)

Full Line Rate Packet Processing & Traffic Management

4x10GE UNI/NNI/Satellite Interconnect

PTF & PTM Service Scale16K Point-to-Point EVC

4K Point-to-Multipoint EVC

256K MAC Address

4K MPLS Tunnels

7.5K MPLS(TP) Circuits

4K VPLS services

32K Policers (2-Level 2R3C)

64K Queues (3-Level H-QoS)

Page 18: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 18

256 Gigabit non-blocking full duplex Switch Fabric

2x10 GE Pluggable SFP+ for UNI/NNI/CPT 50 Interconnect

2x10 GE G.709 with Standard & Enhanced FEC for transmission OAM

Single core CPU @ 1.5Ghz speed, 2 GB DDR3 RAM

Packet Processing

9K Jumbo frames are support

64-byte PPS switching capacity

Traffic Management

8K policers & 64K queues

50 Gig bi-directional packet processor engine with external TCAM @ 350MHz

50 Gig Traffic Manager with 1 GB DDR3 RAM for packet buffering

Hardware OAM off-load via FPGA for MPLS BFD OAM (sub-50 ms APS)

Dedicated Control plane, Data plane and Timing Traces to PTF / PTM

Maximum Power 210 Watts, Nominal Power 147 Watts

Serial console connection with mini USB

Page 19: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 19

40 Gigabit non-blocking Switching Capability

4x10 GE Pluggable SFP+ for UNI/NNI/CPT 50 Interconnect

Single core CPU @ 1.3Ghz speed with 1 GB DDR3 RAM

Packet Processing

9K Jumbo frame support 64-byte PPS capacity

Traffic Management

8K policers & 64K queues 50 Gig bi-directional packet processor engine with external TCAM @ 350MHz50 Gig Traffic Manager with 1 GB DDR3 RAM for packet buffering

Dedicated Control plane, Data plane and Timing Traces to PTF / PTM

Maximum Power 128 Watts, Nominal Power 89.6 Watts

Serial console connection with mini USB

Page 20: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 20

4x10 GE SFP+ Inter-Connect back to the CPT 600 / CPT 200

44x10/100/1000 Mbps SFP based interfaces

CPT 50 Power supplies

-48v DC ANSI redundant power feeds -48v DC ETSI redundant power feeds -24v DC ANSI redundant power feeds 100V – 240V AC single power feed

Single core CPU @ 1.3Ghz speed with 1 GB RAM

Packet processing

9K Jumbo frame support 64-byte PPS capacity

Traffic management

8K policers & 64K queues 50 Gig bi-directional packet processor engine with external TCAM @ 350MHz

50 Gig Traffic Manager with 1 GB DDR3 RAM for packet buffering

Control Plane uses high priority queuing on Inter-Connect ports

Maximum Power 210 Watts, Nominal Power 159 Watts.

Serial console connection with mini USB

Page 21: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 21Cisco Confidential© 2010 Cisco and/or its affiliates. All rights reserved. 21

MWR 3941

4 RJ 45+ 4SFP+ 4 COMBO

MWR 394E1

4 RJ 45+ 4SFP+ 4 COMBO + 16E1/T1

Applications: Cell Site gateway (2G/3G/4G), LTE, Business NID / 1G access

Hardware Capabilities

1RU, ETSI compatible. Airflow :side to side ( 2 Fans), Dual line Feed (+/- 24V, -48 V), Redundant power supply (optional)

Max Power : <40W

Industrial Temp Rated: -40C to +65C Operational Temperature

Software Capabilities

L2, L3 VPN, EVC, MPLS, REP, QinQ, Y.1731 , LAG, E-OAM

MPLS-TP ( FCS +1)

TDM : IMA, MLPPP bundle, CESoPSN, CESoUDP, SAToP, PWE

CLOCKING :SyncE, 1588v2 BC, ToD, Stratum 3, OCXO, BITS etc

QOS : Ingress Hierarchical policing, Egress Queuing with 8 Queues per port

Management: Cisco PRIME, IOS CLI

Q3 CY11

Page 22: Foundation for Next-Generation Transport

© 2010 Cisco Systems, Inc. All rights reserved. Cisco Confidential22

CPT Hardware Overview

Features

Page 23: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 23

TDM Transport Packet Data Network

Connection mode Connection oriented Connectionless (except TE)

OAM In-band OAM Out-of-band (except PW, TE)

Protection Switching Data Plane Switching Control plane dependency

BW efficiency Fixed Bandwidth Statistical multiplexing

Data Rate Granularity Rigid SONET hierarchy Flexible data rate

QoS One class only QoS treatment

Packet Transport

MPLS based Transport w/ in band OAM

Page 24: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 24

Cisco EVC 2.0 support

16K P2P Services

4K MP2MP Services

4K P2MP Services w/ split horizon

Flexible Encapsulation: 0:1, 0:2, 1:1, 1:2, 2:2, 2:1, 2:0 & 1:0

Resilient Ethernet Protocol

A to Z provisioning

Carrier Ethernet Unified MPLS

MPLS-TP

4K Tunnels, 7.5K VPWS & 4K VPLS

GAL, GACH, AIS, LDI, Hardware BFD for sub-50ms resiliency, 1:1 Path Protection, Lockout, VCCV, MS-PW, Alarms & Bandwidth Management

A to Z Provisioning

IP/MPLS

4K Tunnels & 7.5K VPWS

OSPF-TE, RSVP-TE, LDP, MS-PW & VCCV

A to Z Provisioning

Page 25: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 25

High Availability QoS / H-QoS

Multicast Timing

Management

Active-Active Data plane

Active-Standby Control plane

SSO, ISSU

128 Link Aggregation groups (LAG). Up to 8 Members in a LAG

8K policers (2 level 2R3C)

64K queues (3 level H-QoS)

Remarking

Priority queues for LLQ traffic

Shaping

Pre-allocated QoS for control plane

IGMP V2, V3 Snooping

Multicast VLAN Registration (MVR)

2K Multicast Groups

H-VPLS optimized for Multicast

(Hardware Ready) Sync E (BITS In/Out) , IEEE 1588v2 PTP ToD/PPS

CTM, CTC, TL1 (Equipment) supported. Cisco CLI support

Page 26: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 26

Business

E-LINE

Business

E-LAN

EoMPLS PW

EoMPLS Pseudowire

VPLS

Ethernet

QinQ, .1ah

Ethernet

QinQ, .1ah

Port, 1Q, QinQ

Port, 1Q, QinQ

Business

E-LINEPort, 1Q, QinQ

PW

Switch

Business

E-LAN

EoMPLS PW

VPLSoMPLS PseudowirePort, 1Q, QinQ

FCS

Release

9.5

MPLS-TP IP/MPLS-TE

EoMPLS Pseudowire

1:1

Service

Stitching

N:N

Service

Stitching

Page 27: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 27Cisco Confidential© 2010 Cisco and/or its affiliates. All rights reserved. 27

PW for Multicast Video

IGMP

Querier

PIM DR

M

LSP for Multicast Video

Multicast Traffic flow

Release 9.4

STB Access

Nodes

Aggregation Nodes

CPT

Distribution Nodes

CPTVideo SEN

ASR9K

•Each LSP has a

Back LSP

•Fiber cuts protected

in sub 50 ms via

Back up LSP

•Both routers forward

on CPT node failure

•PIM router failure

protected via backup

router

M

M

M

BD VFIU

BD

VFI

M MVR

Multicast VLAN Traffic

Page 28: Foundation for Next-Generation Transport

© 2010 Cisco Systems, Inc. All rights reserved. Cisco Confidential28

CPT Hardware Overview

Case Studies

Page 29: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 29

Tier 2 US

Customer

L1/L2

Internal NNI

L1

External NNI

L1

CSS

Customer

L3

CPT 600

ETN

IP//MPLS

Backbone

MPLS-TP IP/MPLS

ETN: Ethernet Transport Network

CSS: Converged Service Switch

L1: Ethernet Lease Line

L2: Ethernet Private LAN

L3: Layer 3 VPN / Internet

ASR 9010

EVC

• Growth in Ethernet Services leads to Packet Transport migration

:

• CPT Provides compact, scalable and pay as your grow architecture

• Strict transport SLAs for L1/L2 services with MPLS-TP

• Unified MPLS w/ CPT & PW Head-End on ASR9K Simplifies Network Design and Enables L3 Services in ETN

Unified MPLS approach with common management and standards based MPLS-TP Solution

Page 30: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 30

Tier 1 JapanIP Core

Backbone

2G/3G/4G

Node

Mobile Core

Backbone

2G/3G/4G

Node

DSLAM

Ethernet

Ethernet

Access

Node

Minor Ring

Minor Ring

Major Ring

Service

Router

MPLS-TP IP/MPLSEVC

CPT 600

CPT 600

ASR 9010

:

-Converge Enterprise, Band and Mobile backhaul to a Single Unified Packet Transport Network Architecture.

- Strict Packet Transport Requirements: (Depth, Height, Width, Power, & Static Provisioning

:

- CPT, Rudy, & ASR9K Provide E2E Network Architecture

- Advanced and Industry leading MPLS-TP Features and Functionality

- Standards based MPLS-TP, Advanced capabilities such as multipoint and Video broadcast on MPLS-TP

Page 31: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 31

Tier 2

Wholesale

L1/L2

ATT

Verizon

ATT

CPT 600

MPLS-TP IP/MPLS

EVC

Verizon MSO’s

7600

2G/3G/4G

Node

2G/3G/4G

Node

IP RAN

Wholesale

L1/L2

Cell Tower

• Growth in Ethernet Services leads to Packet Transport migration.

:

• CPT Provides compact, scalable and pay as your grow architecture.

• Strict transport SLAs for L1/L2 services with MPLS-TP.

• Unified MPLS w/ CPT & PW Head-End on ASR9K Simplifies Network Design and Enables L3 Services in ETN.

Page 32: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 3232

Tier 1

CPT-600

DWDM ring

6xFE + 4xGE

• Growth in Ethernet Services leads to Packet Transport migration.

:

• CPT Provides a small footprint and large switching capacity solution.

• Higher GE port density with a pay as you grow architecture.

• Future proof with 10G uplink through CPT 200* in pre-aggregation And DWDM uplink in aggregation.

* Using CPT 50 in 1HCY12

Page 33: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 3333

Fitting into Your Current Models

Packet

MPLS+MPLS-TP

Transport

Wavelengths

Autonomous Control

Packet Transport

MPLS+MPLS-TP,

Wavelengths

Single UI

Page 34: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 3434

“…Features such as standards-based operations, performance monitoring, administration, management, and sub-50 milliseconds protection switching are critical requirements in the Verizon packet transport network and we support Cisco’s decision.”

“….The new Cisco Carrier Packet Transport system will support MPLS-TP interoperating seamlessly with MPLS on the Cisco Aggregation Services Router 9000 and…contributeto a unified packet transport solution that should simplify operations while contributing to increased end-to-end service-levels….the Cisco ROADM and DWDM systems integrated into the Cisco Carrier Packet Transport system allows for wavelength services to be offered on the same platform as Ethernet and MPLS-TP services, with potentially significant economic and operational benefits.”

“Cisco is a recognized leader in IP and MPLS and…has been focused on the standards-based technology of MPLS-TP…Cisco’s implementation of a MPLS and MPLS-TP solution for core, edge and access is suitable for both packet and transport networks.”

Page 35: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 3535

Begin the Transformation with CPT

Trust Agility

Savings

www.cisco.com/go/cpt

Page 36: Foundation for Next-Generation Transport

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 36

Thank you.