Cisco Systems
Wireless LANs and Enterprise Mobility
Agenda
• WLAN Market Trends
• Enterprise-wide deployment
•Customer WLAN Requirements
•Cisco Aironet WLAN solutions
•Cisco Aironet Network Services
• WLAN Building Blocks
• Road Map
• Deployment Examples
• Competitive Analysis
• Summary
The New Enterprise: MobilityVoice/Data Voice/Data
CollaborationCollaborationE-CommerceE-Commerce Unified Unified
MessagingMessagingE-E-
LearningLearningIP TelephonyIP TelephonyIntelligent Contact Intelligent Contact
ManagementManagement
Mobility
New Network ServicesNew Network ServicesAnytime, Anywhere Access Anytime, Anywhere Access
New Network Infrastructure RequirementsNew Network Infrastructure Requirements
Mobility Becoming a Requirement
• People on the move
Business travel
Nomadic sales force
7x24x365 availability
The “extended” Enterprise
• Anywhere access to services and business applications
• Plethora of mobile devices and technologies available
Notebooks, hand-helds, cell phones, pagers
The New Enterprise Network
Ne
two
rk R
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uir
em
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Internet Enabled Internet Enabled BusinessBusiness
Data, Voice & VideoData, Voice & Video• High AvailabilityHigh Availability• Quality of Quality of ServiceService
Networked Networked BusinessBusiness
Switched InfrastructureSwitched Infrastructure• Price/PerformancePrice/Performance• ManageabilityManageability
Web-based IntranetWeb-based Intranet• New business appsNew business apps• SecuritySecurity
EcommerceEcommerce• Distributed databaseDistributed database• Extranet, Supply ChainExtranet, Supply Chain
MobilityMobility• Wireless DevicesWireless Devices• VPNsVPNs
NetworkNetworkUbiquityUbiquity
Rich Portfolio of Mobile Applications
• Access to email and business applications
In meetings, at home, and on the road
Collaboration with customers and suppliers
• Mcommerce
Commerce via mobile devices
• Asset tracking
Keeping track of more devices in the enterprise
Traditional logistics and warehousing
• Shopping
“Scan and Shop”
Cisco’s Wireless Initiatives
Wireless LANWireless LAN
Wireless Local LoopWireless Local Loop
Point-Point/MultipointWireless
Point-Point/MultipointWireless
Mobile cellular voice/data
Communications
Mobile cellular voice/data
Communications
AironetAironet/Clarity
Aironet/Clarity Aironet/JetCell/GPRS
Agenda
• WLAN Market Trends
• Enterprise-wide deployment
•Customer WLAN Requirements
•Cisco Aironet WLAN solutions
•Cisco Aironet Network Services
• WLAN Building Blocks
• Road Map
• Deployment Examples
• Competitive Analysis
• Summary
Comprehensive Wireless LAN Solutions for Large-scale Deployment
•Access Points•Bridges•Advanced Network Services
•Cisco NICs•Xircom Partnership•3rd Party 802.11 clients
RADIUS
•Centralized Cisco Access Control Server•Web-based Mgmt
Cisco Aironet 350/340 Series Wireless LAN Solution
• PC Card/PCI Client Adapters
• Access Points
• Line-of-Sight Bridge Products
• Antennas & Accessories
The Cisco Aironet 350/340 Series of 802.11b compliant high speed wireless solutions offers the best performance, manageability, scalability and security for both
in-building and building to building wireless applications
Cisco Aironet 350/340 Series Client Adapters
• Client access for both notebook and desktop systems
• Broad Operating Systems Support:
Windows 95, 98,
Windows NT 4.0
Windows 2000
Windows Millennium
Windows CE
Linux
MacOS
• Easy, simple installation
• Lifetime limited warranty
Security Requirements for WLANs
• First generationSSIDStatic 40 or 128-bit WEP
• Cisco differentiatorsCentralized user-based authentication (ACS2000 v2.6) integrated with network logonDynamic 128-bit WEPEncryption done in h/wVPNAccess Control Lists
• Future plansRogue AP detection3rd Party RADIUS server supportPolicy framework
“Wireless is like having an RJ45 in my parking lot.”
Reliability Requirements for WLANs
• Auto data-rate negotiation• Site survey and spectrum analysis
tools• Cisco differentiators
Radio power and qualityLoad balancing and hot standby redundancyBroad range of antennasPartners for site survey
• Future plansChannel agilityInterference management
“Sometimes it works; sometimes it doesn’t.”
Interoperability Requirements for WLANs
• Basic 802.11 interoperability via Wireless Ethernet Compatibility Alliance
WECA
• Vendor specific extensionsSecurityRoaming
• Most WLAN vendors offer client and infrastructure to guarantee single vendor solution
• Xircom partnership for client adapters and combo cards
“Different vendors’ products don’t work together.”
Management Requirements for WLANs
• Standard MIBs• Sniffer and 3rd party tools for analysis• Cisco Differentiators
CiscoWorks 2000 integrationCDP support & auto discoveryWeb-based Management
Common Enterprise security framework for wired and wirelessClient side utilities and profile management
• Future PlansIntegration with Cluster ManagementRadio spectrum ManagementPolicy-based security
“A whole new ball game for debugging and troubleshooting.”
Deployment Requirements for WLANs
• Site survey tools• Trained partners• Cisco differentiators
World Mode for auto localizationWide selection of antennasBroad client and OS support
• Future plansIn-line powerPlenum-rated Access PointXircom partnership for combo clients
“Design is site specific.”
Scalability Requirements for WLANs
• Cisco differentiatorsRobust roaming for seamless handoff between Access PointsCentralized user-based authenticationDynamic WEP key distribution and managementWireless Mobile IP SupportClient support for all popular operating systems
• Future PlansSeamless inter-subnet roaming
“How do I guarantee ubiquitous access?”
Performance Requirements for WLANs
• NICs under $200• Integrated chip sets for lower costs• 802.11b for 11 Mbps performance• Multiple channel support for higher
aggregate throughput• Ease of wireless integration with
switched 10/100 network• Future plans for high performance
22 Mbps with backward compatibility to 11 Mbps in the 2.4 GHz spectrumUp to 54 Mbps planned in the 5 GHz spectrum
“Too expensive and too slow.”
QoS Requirements for WLANsCisco differentiators
Support for Spectralink 802.11b phonesExtensive filtering capabilities End-to-end Differentiated Services
Future plansStandards efforts on QoS (PCF, DCF)Support for 802.1p/Q and spanning tree per VLAN802.11 IP phones integrated with Cisco Call ManagerInter-subnet roaming and mobile IP services
“Can I support critical applications?”
Agenda
• WLAN Market Trends
• Enterprise-wide deployment
•Customer WLAN Requirements
•Cisco Aironet WLAN solutions
•Cisco Aironet Network Services
• WLAN Building Blocks
• Road Map
• Deployment Examples
• Competitive Analysis
• Summary
Cisco Aironet Network Services
• Scalable, Extensible Security
• Load Balancing and Redundancy
• WLAN Management
• WLAN Roaming
• QoS
Centralized User-Based Authentication
AuthenticatorAuthenticator(e.g. Access (e.g. Access
Point, Catalyst Point, Catalyst Switch)Switch)SupplicantSupplicant
Semi-Public Semi-Public Network /Network /Enterprise EdgeEnterprise Edge
AuthenticationAuthenticationServer such as Server such as ACS2000 v2.6ACS2000 v2.6
RADIUS
EAP Over Wireless/LAN
EAP Over Wireless/LAN
(EAPOW/EAPOL)
(EAPOW/EAPOL)
EAP Over
EAP Over
RADIUSRADIUS
Extended Enterprise(Branch Office, Home, etc.)
EnterpriseIntranet
Dynamic WEP Key Management
EAPOL-Start
EAP-Request/IdentityEAP-Response/Identity
EAP-Request
Radius-Access-Request
Radius-Access-Challenge
EAP-Response (credential) Radius-Access-Request
EAP-Success
Access blocked
Radius-Access-Accept
RADIUSEAPOW
802.11802.11 Associate
Access allowedEAPW-Key (WEP)
Laptop computer
RADIUS
Fast Ethernet
Additional Network Services: Load Balancing
• AP’s configured for load sharing use different RF channels in coverage area
• Policy based on number of users, bit error rate, or signal strength
Channel 1
Channel 6
Additional Network Services: Hot Standby
• AP’s co-located for hot standby use SAME RF channel in coverage area
• Standby AP acts as probe for monitoring and management
Active Standby
Channel X
Channel X
Powerful Diagnostics and Troubleshooting tools
• Web-based WLAN Management
• Support for Std MIBs CDP MIB, and 802.11 MIB
• Site-survey tools
• Client-side utilities
• Auto-localization and channel agility
• Integration with CiscoWorks 2000
WirelineInfrastructure
WLAN L2 Roaming Services
Internet
Roaming
Wireless QoS Services
Cisco differentiatorsSupport for Spectralink 802.11b phonesExtensive filtering capabilities End-to-end Differentiated Services
Future plansStandards efforts on QoS (PCF, DCF)Support for 802.1p/Q and spanning tree per VLAN802.11 IP phones integrated with Cisco Call ManagerInter-subnet roaming and mobile IP services
Agenda
• WLAN Market Trends
• Enterprise-wide deployment
•Customer WLAN Requirements
•Cisco Aironet WLAN solutions
•Cisco Aironet Network Services
• WLAN Building Blocks
• Road Map
• Deployment Examples
• Competitive Analysis
• Summary
Cost-effective WLAN Building Block
•Up to 11 Mbps Peak Data Rate•Graceful Degradation based on distance and error rate•Support for 1, 2, 5.5 and 11 Mbps performance•Web-based Management•Lower total cost of ownership
Catalyst 3524 Series XL
3524-PWR
Channel X
Inline Power
WLAN Building Block for High Aggregation
•Up to 33 Mbps Peak Data Rate•Load Balancing and redundancy•Policy based on number of users, bit error rate, or signal strength•Web-based Management
•Very high aggregation with sectored antennas
Catalyst 3524 Series XL
3524-PWR
Inline Power
Channel 6 Channel 11
Channel 1
High Availability WLAN Building Block
Catalyst 3524 Series XL
3524-PWR
Catalyst 3524 Series XL
Channel 6 Channel 11
Hot Standby
•Up to 33 Mbps Peak Data Rate in coverage area•1 Hot Standby AP per channel•Tolerant to any single AP or link or switch failure•Web-based Management
Agenda
• WLAN Market Trends
• Enterprise-wide deployment
•Customer WLAN Requirements
•Cisco Aironet WLAN solutions
•Cisco Aironet Network Services
• WLAN Building Blocks
• Road Map
• Deployment Examples
• Competitive Analysis
• Summary
2.4 GHz
1 & 2 Mbps
900 MHz
Proprietary
100 Mbps
WLAN Vision: Performance
IEEE 802.11a/b
Ratified
5 GHzRadio
Network
Speed 11Mbps
2.4 GHz
Higher performance
Backward compatibility
Multi-band options
1999 2000 2001
6-54 Mbps22 Mbps
Superset.11a Standard.11b Ext.802.11b Standard
2002
WLAN Vision: Client Options
• Ethernet Clients
Plug and play wireless
• USB
Cost effective NIC alternative
• Multi-function client devices
In partnership with Xircom
• Embedded wireless
OEM to laptop vendors
• Client Drivers/Services
Macintosh/Linux drivers
Automated country radio localization
Telecommuter Base Station
• 802.11 compliant
• Fully managed
• Simplified configuration
• Embedded Modem and Ethernet
Designed for the WLAN Telecommuter
WLAN Vision:Infrastructure Options
W/C
Cisco Access Point 925
In-line pwrcapable switch
Office applicationsSimplify and reduce
installations costsIn-line powerPower Injector
Warehouse (extreme applications)
Extended temperature100 mW Radio
AP Authentication and Rogue AP Detection
• Only IT installed/configured devices deliver infrastructure access
Authenticated clients learn trusted APs in area
• Untrusted APs are detected, reported and if possible isolated and shut down
• Investigating best way to control non-Cisco APs
Additional Network Services: Inter-subnet (L3) Roaming
Fast subnet roaming through Inter Access Point Protocol (IAPP)
Proxy Mobile Services (AP, Upstream switch/router)
Session maintained for critical applications (voice, video, etc .)
Coexists with DHCP and static addresses schemes
L2 Roaming Services
1.1.1.X
1.1.1.Y
L2 Roaming Services
1.1.1.X
1.1.1.Y
L3 Roaming Services
Proxy Client 1.1.1.X
Proxy Client 1.1.2.X
L3 Roaming Services
Proxy Client 1.1.1.X
Proxy Client 1.1.2.X
EnterpriseIntranet
Agenda
• WLAN Market Trends
• Enterprise-wide deployment
•Customer WLAN Requirements
•Cisco Aironet WLAN solutions
•Cisco Aironet Network Services
• WLAN Building Blocks
• Road Map
• Deployment Examples
• Competitive Analysis
• Summary
Site SurveryCoverage
Site SurveyChannel Mapping
Channel 1
Channel 6
Channel 11
Channel 1
Channel 6
Channel 11
Channel 11
Channel 1
Channel 6
Channel 11
Site SurveyBandwidth Layout
5.5 Mbps
11 Mbps
5.5 Mbps
11 Mbps
5.5 Mbps
11 Mbps
5.5 Mbps
11 Mbps
5.5 Mbps
11 Mbps
5.5 Mbps
11 Mbps
5.5 Mbps
11 Mbps
5.5 Mbps
11 Mbps
5.5 Mbps
11 Mbps
5.5 Mbps
11 Mbps
2 Mbps
2 Mbps 2 Mbps 2 Mbps 2 Mbps 2 Mbps
2 Mbps 2 Mbps 2 Mbps 2 Mbps
Warehouse DesignSample
Maximum CoverageAutorate Negotiation
Cabling Only Available at store frontYagi Antennas and DiPole
2000’
850’
1
6
11
1
6
11
Education DesignSample
Maximum CoverageAutorate Negotiation
Wireless for StudentsDiPole Antennas
Class 1 Class 3
Class 1
Hallway
2000’
850’
Class 4 Class 5 Class 5 Class 6 Class 7Class 2
Class 8 Class 10 Class 11 Class 12 Class 13Class 9
AP’s on Isolated LAN with PIX
1
1 6 11 1
6 11 1
Warehouse DesignSample
Maximum CoverageAutorate Negotiation
Cabling Only Available around store edgesPatch and DiPole Antennas
2000’
850’
1
6
11
1
1
6
Building-to-BuildingDesign Considerations
47© 2000, Cisco Systems, Inc.
Site-to-Site P2PDesign Sample
SiSi
SiSi
• Required Distance
•½ Mile
• Building A•Antenna 8.5 dBi Patch
•Antenna Height 13’
•Cable 20’
• Building B•Antenna 8.5 dBi Patch
•Antenna Height 13’
•Cable 50’
• Possible Distance•11 Mbps .81 Miles
•2 Mbps 2.57 Miles
Campus WLAN
Bldg 2
Bldg 3
Omni-directional antennaChannel 1
Channel 1
Main Office
<1 mile
<1 mile
Bldg 1
Channel 1
<1 mileSiSi
Local Area Network
School-to-School WLAN
School 1
School 2
Channel 6
Channel 1
District Office
SiSi
11 Mbps data rate up to 25 miles line of sight
Switch/Router
Local Area Network
11 Mbps data rate up to 25 miles line of sight
Building-to-BuildingInterference Considerations
Site 1A
Site 1B
Site 1C
Site 1D
Site 2B
Site 2A
Channel 1
Channel 1•Third Party inference from same channel usage
•Potential problem in congested areas
Agenda
• WLAN Market Trends
• Enterprise-wide deployment
•Customer WLAN Requirements
•Cisco Aironet WLAN solutions
•Cisco Aironet Network Services
• WLAN Building Blocks
• Road Map
• Deployment Examples
• Competitive Analysis
• Summary
Competitive Analysis: SummaryFeature Cisco Lucent Symbol/3Com
340, WGB AP1000, AP500CostRadio Power 30mW 30mWCentralizedAuthentication
User-based.Integrated withnetwork logon
MAC based. Doesnot scale. Notintegrated withnetwork logon.
None. RequiresSS II Router.
WEP 40,128 bit 40,128 bit 40,128 bitWEPOverhead
2-3%Done in hardware
15-25%Done in software
15-25%Done in software
WEP KeyDistributionand Mgmt
Dynamic andhassle-free
Manual Manual
Web-basedMgmt
Yes. No clientside install.
No. Requiredclient side install
No. Requiresclient side install
QoS for .11Phones
SVP forSpectralink
Serial Console Yes No YesAd hoc mode Yes Yes NoRepeater Mode Yes. Up to 7 hops No NoProximitySetting
Dynamic Manual userconfiguration
Manual
Wi-Fi Yes Yes Yes
Agenda• WLAN Market Trends
• Customer WLAN Requirements
• Enterprise-wide deployment
•Barriers Today
•Cisco solutions
• Cisco Aironet 340 Series
• Cisco Aironet Network Services
• WLAN Building Blocks
• Road Map
• Deployment Examples
• Competitive Analysis
• Summary
Cisco Integrated Solution
Cisco delivers wired and wireless end-to-end solution for voice, video and data
Servers
Printer
Workstations IP Phone
Call Manager
Enterprise Branch SMBCisco 17xx/26xx/36xx
WAN AccessCluster ofSwitches
LANPBX
Servers
Printer
Workstations
Cluster of Switches
Cisco 7xxxWAN Aggregation
IP Phone
Call Manager
Catalyst 6500Campus Backbone
Enterprise Campus
VPN
Ethernet 10/100 Hubs 10/100 Switches 10/100/1000 WirelessSwitches Switches Access Points
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