BN WLAN 1 cisco unified WLAN ueberblick

Centralized WLAN Solution OverviewLightweight Access Points Wireless Controller Wireless Control System Intuitive GUI for easy configuration, monitoring, and troubleshooting Much of t

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Business Mobility

in Transition

Capturing Market Transitions

Nomadic/

Mobile Devices Collaboration

Wireline/

Wireless

Growth in Mobile Devices

Mobile Device Growth Create Greater IT Risks

Unified Wired and Wireless Network

Intelligent Network Services

 Separate communications networks

Data Services Voice Services Video Services

Enterprise Communications Infrastructure

Enterprise Communications Infrastructure

 Common services platform

 Greatest efficiencies and lowest TCO

 Extensive application support

common across entire network

2005+

Unified Network Services

Guest and Identity Voice and UC RFID and Location

Video

Unified Wired and Wireless Network

Mobile E-Mail

 Converged IP network lowers TCO

 Some application efficiencies, not

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Centralized WLAN

Network Design

Centralized WLAN Solution Overview

Lightweight Access

Points

Wireless Controller

Wireless Control System

Intuitive GUI for easy

configuration, monitoring,

and troubleshooting

Much of the traditional WLAN functionality moved from AP to centralized controller

Mobility Services Engine

e.g high-resolution location

tracking and history for

clients, asset tags, and

Access Points are controlled by a centralized WLAN controller

Understanding WLAN Controllers—The WLAN Controller as a Network Device

 WLAN Controller

For wireless end-user devices, the controller is a 802.1Q bridge that takes traffic of

the air and puts it on a VLAN

From the perspective of the AP, the controller is a Tunnel end-point with an IP

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Cisco Wireless LAN

Radio Frequency

Management

• No single point of failure

• Automated network failover decreases support and downtime costs

• Wireless network reliability on par with wired

Benefits

Controller Failover AP Failover

Radio Resource Management

• The controller has a system

level view of the RF domain

and adjusts individual access

points to optimize coverage

and network availability

• An optimized RF environment allows for superior application performance and higher network availability

• Complete RF management without specialized RF skills

• No RF recalibration required – decreased support costs

Dynamic Power Optimization

Radio Resource Management

Enterprise-Class Network Performance

• Dynamic client load balancing

• Solving performance &

capacity problems in high

density areas

e.g conference rooms,

cafeteria…

• Clients and infrastructure

determine optimal load

balancing

• Preserves application and network performance

• Guarantees bandwidth and lower latency for network sensitive applications (e.g voice over IP)

• Decreased support costs; increased user satisfaction

Benefits

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Cisco 802.11n Technology

802.11n Ratification

 Sept 11, 2009 final ratification

 Cisco helped standardization and

rapid adoption of 802.11n

 500K Cisco draft 2.0 802.11n

enterprise-grade APs

 800+ devices certified with draft 2.0

against AP1250 in the WFA test-bed

 Enhanced enterprise-specific

scenarios tested with Intel, Apple,

Nokia and others in Assurewave

Source: Dell’Oro Group, Q1CY’09

Draft 1.0 Draft 2.0 Draft 2.0 WFA

Inter-op

AP1250 ships

IEEE 802.11n Standard Ratified

Draft 11.0

Sept ’08 Jun ’09

802.11n Ratification

 Customers can deploy 802.11n

technology with confidence!

 Final 802.11n is backward

compatible with a/b/g and Draft 2.0

 Grandfathering existing products

 Draft 2.0 products are eligible to use

the 802.11n logo without retesting

 No hardware or software changes required for

Cisco Aironet 1140 and 1250 Series Access Points

 Zero mandatory features beyond draft 2.0

Enhanced Block Ack

Aggregation

Frame Format

Coexistence

Link Adaptation

Link Mgmt

Power Save

Greenfield Channel

Mgmt

MIMO 40Mhz

Channels

Packet Aggregation

Backward Compatibility

Technical Elements of 802.11n

Aggregation

Backward Compatibility

Aspects of 802.11n

Beam Forming Maximal Ratio Combining Spatial Multiplexing

MIMO (Multiple Input, Multiple Output)

Aggregation

Backward Compatibility

Performed by

Transmitter

(Talk Better)

Ensures Signal Received in Phase

Increases Receive Sensitivity

Works with non-MIMO and MIMO Clients

MIMO AP

HALLWAY

Without Beam Forming Transmissions Arrive out of Phase

With Beam Forming Transmissions Arrive in Phase, Increasing Signal Strength

Packet Aggregation Backward Compatibility

Aspects of 802.11n

Packet Aggregation

Backward Compatibility

20-MHz 20-MHz

Moving from 2 to 4 Lanes

40-MHz = 2 aggregated 20-MHz channels—takes advantage of the reserved channel space through bonding to gain more than double the data rate of 2 20-MHz channels

Carpooling Is More Efficient Than Driving Alone

Without Packet Aggregation

Data Unit

Packet

802.11n Overhead

Data Unit

Packet

802.11n Overhead

Data Unit

Packet

802.11n Overhead

With Packet Aggregation

Data Unit

Packet

802.11n Overhead

Packet Packet

Two types A-PSDU or A-MPDU

802.11a/g Client Connection Not Optimized,

Creates Coverage Hole

802.11n

Existing 802.11n Solutions

Beam Strength Not Directed to Client

Intelligent Beam Forming Directs Signal to Improve Performance and Coverage for 802.11a/g Devices

802.11a/g

802.11n

M-Drive with ClientLink

Cisco Innovation: Beam Forming Intelligence

Intelligent Beam Forming Directs Signal to

Beam Forming

802.11a/g

802.11n

Up to 40% Improvement

M-Drive with ClientLink

Cisco Innovation: Beam Forming Intelligence

WLAN Access Points

 No dedicated air monitors

 Supports all deployment scenarios (indoor and outdoor)

 From secure coverage to advanced services

Indoor Access Points

Indoor Rugged Access Points

1130AG 1140ABGN

1240AG

1230AG

1250 ABGN

Outdoor Access Points/Bridges

1510 1520 1400 1300

Access Points

The Aironet 1250 Series Access Point

 Industry’s first Wi-Fi Certified 802.11n

draft 2.0 access point

 Modular platform

Field upgradeable radio modules/future technologies

 Higher speed WLAN technologies

Faster CPU to handle higher data throughput

Increased memory for expanded feature set

10/100/1000 Ethernet port

 Available in Unified (LWAPP) and

Standalone versions

Cisco Aironet 1140 Series Access Point

Taking Business Mobility Mainstream

 1140 Series Takes 802.11n Mainstream

Guaranteed Interoperability –

Tested/Validated

Built on the most widely deployed enterprise

802.11n technology in the industry

Backwards compatible with A/B/G

 Simple Deployment/Energy Efficient

Sleek design with integrated antennas

High performance energy efficient 802.3af

power

10 AP Eco-pack—efficient, easy, eco-friendly

 RF Excellence

Cisco M-Drive technology is a system-wide

approach that manages corporate spectrum;

improves wireless coverage, and increases

system capacity and performance

6X performance of A/G

Aironet Access Point Portfolio Comparison

802.3af*

802.3at*

(18 W)

 Ideal for data, voice, and video

 Wired and wireless integration

Wireless LAN Controllers

Catalyst 6500 Series Wireless

Services Module (WiSM)

Switch and Router Platforms

Network Unification

4400 5500 21xx

WiSM

Catalyst 3750G Integrated WLC Switch

Integrated Services

Routers WLCM

Wireless Controller Product Portfolio

2106, 12, 25

H-REAP

Cisco Unified 802.11n Wireless Network

 802.11n delivers high speeds, reliability and predictability over RF

 802.11n has created a market inflection point

 1140 has become the fastest ramping AP in Cisco history

 Introducing the 5508 – Cisco’s newest controller designed to pair

with the 1140, to extend 802.11n’s speed, reliability and

predictability to the wired infrastructure

 Deploy mission critical wireless networks :

 Run high bandwidth applications over wireless

 Improved mobility experience through larger mobility domains and faster roaming

 Strong security via CAPWAP data encryption, and deeper and faster ACLs

 Reduced downtime for network upgrades

Key Benefits

Cisco 5500 Series Wireless Controller

Key Features  Optimized for 802.11n speeds

 Scales up to 250APs

 New flexible licensing for AP count and features

 OfficeExtend AP solution for mobile teleworker

 Faster AP joins and upgrades

5500 Series Licensing: Overview

5500 Series Licensing

5508-12

WPLUS

5508-100 WPLUS

5508-50 WPLUS

5508-25 WPLUS

5508-250 WPLUS WPLUS Upgrade – Advanced feature support

100 AP  250 AP WPLUS

12 AP  25 AP WPLUS

50 AP  100 AP WPLUS

25 AP  50 AP WPLUS

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Wireless Control System

Cisco Wireless Control System (WCS)

Comprehensive WLAN Lifecycle Management

 Complete visibility and control of the

RF environment

 Comprehensive lifecycle management

in a single centralized platform

 Easy trending, capacity planning and troubleshooting

 Lower OPEX and CAPEX

DEPLOYMENT PLANNING

MONITORING

REPORTING

Cisco WCS

MONITORING TROUBLESHOOTING

Lightweight Access Points

Wireless LAN Controller

Wireless Control

System (WCS)

Mobility Services Engine (MSE)

 Monitor and migrate standalone access points

 Easily configure

– WLAN controllers using SNMP

– Access points using CAPWAP

 Built-in support for Mobility Services

– Context–Aware Services (Location) – Adaptive Wireless Intrusion Prevention System (wIPS)

 Wired and wireless guest access

Client Devices and Wi-Fi Tags

802.11n Standalone

Access Points

RF Prediction Tools Assist in Designing Optimal WLANs

 Planning Tool

– Import floor plans (PNG, JPEG, JPG, GIF, CAD)

– Configure access point placement, coverage,

and other variables

– Generate equipment proposal

 Hierarchical Maps

– Design multiple buildings, floors, regions

 Location and Voice Readiness Tools

– View performance and coverage estimates

Easily Visualize the Ideal RF Environment

Planning Tool

Coverage Visualization Instant Access

to Tools

Hierarchical Maps

• Eliminate improper RF designs and coverage

problems

• Built-in tools perform site-surveys, RF

reassessments and RF readiness evaluation

Benefits

Voice and Location Readiness

Step 2 Perform Voice Assessment

Step 1 Launch Voice Readiness Tool

Step 3 Use Planning Mode to Adjust

Standalone Access Point

Monitoring and Migration

 Free basic and alarm monitoring

of standalone (autonomous) access points

 Monitor all Cisco IOS ® -based Cisco Aironet standalone models

 Monitor Integrated Services Router access points 800, 1800, 2800, and 3800 series

 Easily upgrade and migrate Cisco Aironet standalone access points (individually or as groups)

Migrate Standalone Access Points

Security Monitoring and Status

Easily Address Rogue Devices

Security Index Provides Quick Assessment Customizable Security Display

Rules-Based Rogue Management

Automatically Classify Rogues as: Malicious or Friendly

Malicious (Threat or Alert)

Known Friendly

Unknown

Auto Detect Threat, Alert or Fault State Using RLDP or Rogue Detector

Threat—Requires Attention Now

Alert—Put It in the Queue

Legend:

Quickly Locate Rogues

Wireless LAN Controller Template

Fault—Put It in the Queue

Dynamic Resources Aid Effective Troubleshooting

 Workflows support seamless linkage between all

tools, alarms, alerts, searches, and reports

 Built-in client and infrastructure tools support:

– Quick assessment of service disruptions

– Receipt of notices about performance degradation

– Streamlined research and quick action for resolution

 RF troubleshooting with Cisco M-Drive technology,

Cisco CleanAir, and Client Link

Identify, Isolate, and Resolve Problems

Across All WLAN Components

Client Troubleshooting Tool Client Mobility

Access Point Connection Information

Streamlined Workflows

2

3 1

• More clearly understand underlying operational

nuances occurring in the wireless network

• Quickly discover events occurring outside baseline

parameters

• Efficiently assess and reestablish optimal network

Benefits

Cisco-Compatible Extensions

The Standard for Client Advancement

Over 90% of Client Devices Are

 Ensures multi-vendor interoperability

 Enables simplified deployment of mobile WLAN clients

http://www.cisco.com/go/ciscocompatible/wireless

Compatible

More: Guest Access

& Office Extend

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Wireless Guest Access

IT Admin Function Guest User Function Employee Function

User Login Portal

Guest Access

WLAN Controller Deployments with EoIP Tunnel

 Use of EoIP tunnels to logically

segment and transport the guest

traffic between edge and anchor

controllers

 Other traffic (Employee for

example) still locally bridged on

the corresponding VLAN

 No need to define the Guest

VLANs on the switches connected

to the edge controllers

 Original Guest’s Ethernet frame

maintained across LWAPP and

EoIP tunnels

 EoIP supported across all WLAN

Controllers

 2106 model can’t terminate EoIP

connections (no anchor role)

Guest WLAN Controller (Anchor)

Wireless VLAN’s

Campus Core

EtherIP

―Guest Tunnel‖

Emp Emp

Guest Tunneling N+1 Redundancy

 Using EoIP Pings (data path)

functionality Anchor WLC

reachability will be determined

 Foreign WLC will send pings at

configurable intervals to see if

Anchor WLC is alive

 Once a Anchor WLC failure is

detected a DEAUTH is send

to the client

 Remote WLC will keep on

monitoring the Anchor WLC

 Under normal conditions

round-robin fashion is used to balance

clients between Anchor WLC’s

Primary link Redundant link

Guest WLAN Controllers (Anchors)

Wireless VLAN’s

Campus Core

EtherIP

―Guest Tunnel‖

Emp Emp

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Office Extend Solution

 Personal SSID for non-corporate use

 Ease of deployment with no special configuration needed on the Wireless Controller

 Encryption of data at line rate, no encryption module needed

 Supports UC wireless phones

OfficeExtend AP

Key Benefits

 Secure, simple, cost-effective

mobile teleworker solution

enabling a consistent mobility

experience

 Ease of deployment for IT; plug

and play for end user

1140 AP 1130 AP

Controller Internet

Corporate Network

Non-corporate

Assets

e.g Wii, DVR

Corporate Asset

Router e.g Linksys

OfficeExtend AP

New Offering for Teleworkers and Remote Deployments

 Extend office wireless work environment to remote sites: corporate SSIDs available in remote site

 Ideal for telecommuting, home-sourcing, outsourcing applications

 Quickly and securely blanket remote area with corporate WLAN: temporary work space, new branch office or acquisition etc.

 Create locally significant SSID directly on OfficeExtend AP; unique SSID can be created for each location; not managed by IT

 DTLS VPN between AP and controller

 Available on 1131 and 1140