ch 01 lan design
TRANSCRIPT
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LAN DesignLAN Design
Switched LAN ArchitectureSwitched LAN Architecture
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Switched LAN ArchitectureSwitched LAN Architecture
When building a LAN that satisfies the needs of a small orWhen building a LAN that satisfies the needs of a small ormediummedium--sized business, your plan is more likely to besized business, your plan is more likely to be
successful if asuccessful if a hierarchical design modelhierarchical design model is used.is used.
Divided into discrete layers.Divided into discrete layers.
Each layer has a specific purpose.Each layer has a specific purpose.
Becomes modularBecomes modular maintenance, performance.maintenance, performance.
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Switched LAN ArchitectureSwitched LAN Architecture
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Access LayerAccess Layer
Interfaces with end devices.Interfaces with end devices.
Routers, switches, bridges, wireless access points.Routers, switches, bridges, wireless access points. Provides a means of connecting and controlling whichProvides a means of connecting and controlling which
devices are allowed to communicate on the network.devices are allowed to communicate on the network.
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Distribution LayerDistribution Layer
Aggregates (funnels) Access Layer traffic.Aggregates (funnels) Access Layer traffic.
Controls traffic flow with security or routing policies.Controls traffic flow with security or routing policies. Defines broadcast domains.Defines broadcast domains.
Routing of VLANs (Virtual LANs).Routing of VLANs (Virtual LANs).
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Core LayerCore Layer
High speed backboneHigh speed backbone of the network.of the network.
Must beMust be highly availablehighly available andand redundantredundant.. Must be capable ofMust be capable ofquickly forwarding large amountsquickly forwarding large amounts of data.of data.
Smaller networksSmaller networks collapsed model (Core and Distribution).collapsed model (Core and Distribution).
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Medium Sized BusinessMedium Sized Business
LogicalLogical
LayoutLayout
PhysicalPhysical
LayoutLayout
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Benefits of a Hierarchical NetworkBenefits of a Hierarchical Network
Benefits:Benefits:
ScalabilityScalability
RedundancyRedundancy
PerformancePerformance
ManageabilityManageability
MaintainabilityMaintainability
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Benefits of a Hierarchical NetworkBenefits of a Hierarchical Network
ScalabilityScalability
Hierarchical Networks can be expanded easily.Hierarchical Networks can be expanded easily.
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Benefits of a Hierarchical NetworkBenefits of a Hierarchical Network
RedundancyRedundancy
Redundancy at the core and distribution layersRedundancy at the core and distribution layers
ensure availability.ensure availability.
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Benefits of a Hierarchical NetworkBenefits of a Hierarchical Network
PerformancePerformance
Link aggregation andLink aggregation and high performancehigh performance distribution and coredistribution and core
layer switches provide nearlayer switches provide near--wire speed at all layers.wire speed at all layers.
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Benefits of a Hierarchical NetworkBenefits of a Hierarchical Network
SecuritySecurity
Port security at the access layer and policies at the distributionPort security at the access layer and policies at the distribution
layer make the network more secure.layer make the network more secure.
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Benefits of a Hierarchical NetworkBenefits of a Hierarchical Network
ManageabilityManageability
ConfigurationsConfigurations
Consistency among switches at each layer makesConsistency among switches at each layer makes
management more simple.management more simple.
FunctionalityFunctionality
Rapid RecoveryRapid Recovery
Easier TroubleshootingEasier Troubleshooting
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Benefits of a Hierarchical NetworkBenefits of a Hierarchical Network
MaintainabilityMaintainability
The modular design allows a network to scale easily withoutThe modular design allows a network to scale easily without
becoming overbecoming over--complicated or burdensome.complicated or burdensome.
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Principles of Hierarchical Network DesignPrinciples of Hierarchical Network Design
Just because a network is hierarchical, it doesnt mean itsJust because a network is hierarchical, it doesnt mean itswell designed.well designed.
Network Diameter:Network Diameter:
The number of devices that a packet has to crossThe number of devices that a packet has to cross
before it reaches its destination.before it reaches its destination.
Bandwidth Aggregation:Bandwidth Aggregation:
After the bandwidth requirements of the network areAfter the bandwidth requirements of the network are
known, links between specific switches can beknown, links between specific switches can be
aggregated or combined to provide higher bandwidth.aggregated or combined to provide higher bandwidth.
Redundancy:Redundancy: The practice of providing multiple paths to aThe practice of providing multiple paths to a
destination or multiple instances of a device.destination or multiple instances of a device.
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Principles of Hierarchical Network DesignPrinciples of Hierarchical Network Design
Network Diameter:Network Diameter:
For PC1 toFor PC1 to
communicatecommunicate
with PC3, thewith PC3, the
data mustdata must
raverseraverseintermediateintermediate
switches.switches.
In this case,In this case, the network diameter is 6the network diameter is 6..
Each switch introduces some latency.Each switch introduces some latency.
In a hierarchical network, network diameter is alwaysIn a hierarchical network, network diameter is always
going to be agoing to be a predictable number of hopspredictable number of hops between thebetween the
source and destination devices.source and destination devices.
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Principles of Hierarchical Network DesignPrinciples of Hierarchical Network Design
BandwidthBandwidthAggregation:Aggregation:
LinkLink
aggregationaggregation
allows multipleallows multiple
sw c por sw c por links to belinks to be
combined socombined so
as to achieve higher throughput between switches.as to achieve higher throughput between switches.
The determining factor is using link aggregation is theThe determining factor is using link aggregation is the
requirements of the user applications.requirements of the user applications.
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Principles of Hierarchical Network DesignPrinciples of Hierarchical Network Design
Redundancy:Redundancy:
Redundancy isRedundancy is
one part ofone part of
creating acreating a
highly availablehighly available
ne wor .ne wor .
Multiple linksMultiple links
betweenbetween
switches or multiple devices.switches or multiple devices.
It can get expensive and most likely will not be done onIt can get expensive and most likely will not be done on
the access layer because of the cost and variety ofthe access layer because of the cost and variety of
devices.devices.
It is feasible at the distribution and core layers.It is feasible at the distribution and core layers.
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What is a Converged Network?What is a Converged Network?
A Converged NetworkA Converged Network is one where voice and videois one where voice and videocommunications have been combined on a single datacommunications have been combined on a single data
network.network.
Legacy Equipment:Legacy Equipment:
Until now, mainly feasible on large enterpriseUntil now, mainly feasible on large enterprise
networks.networks.
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What is a Converged Network?What is a Converged Network?
Advanced Technology:Advanced Technology:
More popular to medium and small sized businesses.More popular to medium and small sized businesses.
Can be a difficult decision considering currentCan be a difficult decision considering current
investments in technology.investments in technology.
Benefit:Benefit: Only one network to manage.Only one network to manage.
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What is a Converged Network?What is a Converged Network?
New Options:New Options: You can now tie voice and video communications directlyYou can now tie voice and video communications directly
into an employee's personal computer system.into an employee's personal computer system.
Software integrated on a PC eliminates an expensiveSoftware integrated on a PC eliminates an expensive
handset.handset.
Add a webcam and video conference.Add a webcam and video conference.
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LAN DesignLAN Design
Matching Switches toMatching Switches toSpecific LAN FunctionsSpecific LAN Functions
Traffic Flow AnalysisTraffic Flow Analysis
User Community AnalysisUser Community Analysis
Data Stores and Data Servers AnalysisData Stores and Data Servers Analysis
Topology DiagramsTopology DiagramsSwitch FeaturesSwitch Features
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Considerations for Network SwitchesConsiderations for Network Switches
Traffic Flow Analysis:Traffic Flow Analysis: The process ofThe process of
measuring themeasuring the
bandwidth usagebandwidth usage
on a network andon a network and
ana yz ng e a a.ana yz ng e a a.
Performance tuning.Performance tuning.
Capacity planning.Capacity planning. Hardware improvement decisions.Hardware improvement decisions.
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Considerations for Network SwitchesConsiderations for Network Switches
User Community Analysis:User Community Analysis: The process of identifying various groupings of users andThe process of identifying various groupings of users and
their impact on network performance.their impact on network performance.
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Considerations for Network SwitchesConsiderations for Network Switches
Data Stores and Data Servers Analysis:Data Stores and Data Servers Analysis: When analyzing traffic on a network, consider the locationWhen analyzing traffic on a network, consider the location
of the data stores and data servers.of the data stores and data servers.
Consider bothConsider both clientclient--serverserverandand serverserver--serverservertraffic.traffic.
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Considerations for Network SwitchesConsiderations for Network Switches
Topology Diagram:Topology Diagram: A graphical representation of a network infrastructure.A graphical representation of a network infrastructure.
Switch connections with port numbers.Switch connections with port numbers.
Aggregated ports and redundant paths.Aggregated ports and redundant paths.
.. Could contain user information.Could contain user information.
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Switch FeaturesSwitch Features
Switch Form Factors:Switch Form Factors: When selecting a switch, you need to decide betweenWhen selecting a switch, you need to decide between
Fixed configuration or modular configuration.Fixed configuration or modular configuration.
Stackable or nonStackable or non--stackable.stackable.
depending upon where the switch will be installed.depending upon where the switch will be installed.
Wiring closet with limited space.Wiring closet with limited space.
Computer room with free standing racks.Computer room with free standing racks.
Shelf in a central area.Shelf in a central area.
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Switch FeaturesSwitch Features
Fixed Configuration Switches:Fixed Configuration Switches: Fixed in their configuration.Fixed in their configuration.
YouYou cannot add features or optionscannot add features or options to the switch beyondto the switch beyond
those that originally came with the switch.those that originally came with the switch.
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Switch FeaturesSwitch Features
Modular Switches:Modular Switches: Offer moreOffer more flexibilityflexibility..
Typically come withTypically come with different sized chassisdifferent sized chassis that allow forthat allow for
the installation of different numbers of modularthe installation of different numbers of modular line cardsline cards..
The line cards actuall contain the orts.The line cards actuall contain the orts.
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Switch FeaturesSwitch Features
Stackable Switches:Stackable Switches: Interconnected using a specialInterconnected using a special backplane cablebackplane cable thatthat
provides highprovides high--bandwidth throughput between thebandwidth throughput between the
switches (Cisco StackWise).switches (Cisco StackWise).
The stacked switches effectivelyThe stacked switches effectively operate as a single,operate as a single,
larger switch.larger switch.
Desirable whenDesirable when fault tolerance and bandwidth availabilityfault tolerance and bandwidth availability
are criticalare critical and a modular switch is too costly toand a modular switch is too costly to
implement.implement.
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Switch PerformanceSwitch Performance
When selecting a switch for the access, distribution, or coreWhen selecting a switch for the access, distribution, or corelayer, consider the ability of the switch to support:layer, consider the ability of the switch to support:
Port Density.Port Density.
Forwarding Rate.Forwarding Rate.
Bandwidth A re ation Re uirements.Bandwidth A re ation Re uirements.
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Switch PerformanceSwitch Performance
Port Density:Port Density: Port density is the number of ports available on a singlePort density is the number of ports available on a single
switch.switch.
48 Port48 Port
Very high density.Very high density.
Catalyst 6500Catalyst 6500 -- 1,000 Ports1,000 Ports
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Switch PerformanceSwitch Performance
Forwarding Rate:Forwarding Rate: Defines the processing capabilities of a switch by ratingDefines the processing capabilities of a switch by rating
how much data the switch can process per second.how much data the switch can process per second.
If the switch forwarding rate is too low,If the switch forwarding rate is too low, it cannotit cannot
accommodate full wireaccommodate full wire--speedspeed communication across allcommunication across all
of its switch ports.of its switch ports.
A 48 port Gigabit switch is capable of switching 48A 48 port Gigabit switch is capable of switching 48
Gigabits of traffic.Gigabits of traffic.
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Switch PerformanceSwitch Performance
Forwarding Rate:Forwarding Rate: Access layer switches typically do not need to operate atAccess layer switches typically do not need to operate at
full wire speed because they are physically limited byfull wire speed because they are physically limited by
their uplinks to the distribution layer.their uplinks to the distribution layer.
Allows the use of:Allows the use of:
Less expensive, lower performing switches at theLess expensive, lower performing switches at the
access layeraccess layer..
More expensive, higher performing switches at theMore expensive, higher performing switches at the
distribution and core layersdistribution and core layers, where the forwarding rate, where the forwarding rate
makes a bigger difference.makes a bigger difference.
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Switch PerformanceSwitch Performance
Link Aggregation:Link Aggregation: As part of bandwidth aggregation, you should determineAs part of bandwidth aggregation, you should determine
if there are enough ports on a switch to aggregate toif there are enough ports on a switch to aggregate to
support the required bandwidth.support the required bandwidth.24 Port Gigabit24 Port Gigabit24 Port Gigabit24 Port Gigabit24 Port Gigabit24 Port Gigabit
Single PortSingle Port -- 1 Gigabit1 Gigabit
BOTTLE NECKBOTTLE NECK
Single PortSingle Port -- 1 Gigabit1 Gigabit
BOTTLE NECKBOTTLE NECK
Single PortSingle Port -- 1 Gigabit1 Gigabit
BOTTLE NECKBOTTLE NECK
p o por sp o por sbound together tobound together to
provide up toprovide up to
8 Gigabits.8 Gigabits.
p o por sp o por sbound together tobound together to
provide up toprovide up to
8 Gigabits.8 Gigabits.
p o por sp o por sbound together tobound together to
provide up toprovide up to
8 Gigabits.8 Gigabits.
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Switch PerformanceSwitch Performance
Power over Ethernet (PoE):Power over Ethernet (PoE): Allows the switch to deliver power to a device over theAllows the switch to deliver power to a device over the
existing Ethernet cabling.existing Ethernet cabling.
Adds considerable cost to the switch.Adds considerable cost to the switch.
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Switch PerformanceSwitch Performance
Layer 3 Functionality:Layer 3 Functionality: Switches typically operate at Layer 2 of the OSI Model.Switches typically operate at Layer 2 of the OSI Model.
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Switch FeaturesSwitch Features Hierarchical NetworkHierarchical Network
Access Layer Switch Features:Access Layer Switch Features:
Port SecurityPort SecurityLink AggregationLink Aggregation
VLANsVLANsFastEthernet/GigabitFastEthernet/Gigabit
PoEPoE
Quality of Service (QoS)Quality of Service (QoS)
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Switch FeaturesSwitch Features Hierarchical NetworkHierarchical Network
Distribution Layer Switch Features:Distribution Layer Switch Features:
Layer 3 SupportLayer 3 Support
High Forwarding RateHigh Forwarding Rate
Link AggregationLink Aggregation
Gigabit/10 GigabitGigabit/10 GigabitRedundant ComponentsRedundant Components
Quality of Service (QoS)Quality of Service (QoS)
Security PoliciesSecurity Policies
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Switch FeaturesSwitch Features Hierarchical NetworkHierarchical Network
Core Layer Switch Features:Core Layer Switch Features:
Layer 3 SupportLayer 3 Support
Link AggregationLink Aggregation
Very High Forwarding RateVery High Forwarding Rate
Gigabit/10 GigabitGigabit/10 Gigabit
Redundant ComponentsRedundant Components
Quality of Service (QoS)Quality of Service (QoS)
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SwitchesSwitches Small and Medium Business (SMB)Small and Medium Business (SMB)
Cisco has seven switch product lines. Each product lineCisco has seven switch product lines. Each product lineoffersoffers different characteristics and featuresdifferent characteristics and features, allowing you to, allowing you to
find the right switch to meet the functional requirements offind the right switch to meet the functional requirements of
your network.your network.
The Cisco switch product lines are:The Cisco switch product lines are:
Catalyst Express 500Catalyst Express 500
Catalyst 2960Catalyst 2960
Catalyst 3560Catalyst 3560
Catalyst 3750Catalyst 3750
Catalyst 4500Catalyst 4500 Catalyst 4900Catalyst 4900
Catalyst 6500Catalyst 6500
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For Small and Medium Sized Business (SMB)For Small and Medium Sized Business (SMB)
The Catalyst Express 500 is Cisco's entryThe Catalyst Express 500 is Cisco's entry--layer switch. It offers:layer switch. It offers:Forwarding rates from 8.8Forwarding rates from 8.8 GbGb/s to 24/s to 24 GbGb/s/sLayer 2 port securityLayer 2 port securityWebWeb--based managementbased managementConverged data/IP communications supportConverged data/IP communications support
This switch series is appropriate for access layerThis switch series is appropriate for access layerimplementations where high port density is not required. Theimplementations where high port density is not required. The
Catalyst Express 500Catalyst Express 500
business environments ranging from 20 to 250 employees. Thebusiness environments ranging from 20 to 250 employees. TheCatalyst Express 500 series switches are available in differentCatalyst Express 500 series switches are available in differentfixed configurations:fixed configurations:
Fast Ethernet and Gigabit Ethernet connectivityFast Ethernet and Gigabit Ethernet connectivityUp to 24 10/100 ports with optionalUp to 24 10/100 ports with optional PoEPoE or 12 10/100/1000 portsor 12 10/100/1000 ports
Catalyst Express 500 series switches do not allow managementCatalyst Express 500 series switches do not allow managementthrough the Cisco IOS CLIthrough the Cisco IOS CLI. They are managed using a built. They are managed using a built--ininweb management interface, the Cisco Network Assistant or theweb management interface, the Cisco Network Assistant or thenew Cisco Configuration Manager developed specifically for thenew Cisco Configuration Manager developed specifically for the
Catalyst Express 500 series switches. The Catalyst ExpressCatalyst Express 500 series switches. The Catalyst Expressdoes not support console access.does not support console access.
To learn more about the Cisco Express 500 series of switches,To learn more about the Cisco Express 500 series of switches,go to http://www.cisco.com/en/US/products/ps6545/index.html.go to http://www.cisco.com/en/US/products/ps6545/index.html.
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For Small and Medium Sized Business (SMB)For Small and Medium Sized Business (SMB)
The Catalyst 2960 series switches enable entryThe Catalyst 2960 series switches enable entry--layerlayerenterprise, mediumenterprise, medium--sized, and branch office networks tosized, and branch office networks toprovide enhanced LAN services.provide enhanced LAN services.
The Catalyst 2960 series switches are appropriate for accessThe Catalyst 2960 series switches are appropriate for accesslayer implementations where access to power and space islayer implementations where access to power and space islimited.limited.
The CCNA Exploration 3 LAN Switching and Wireless labs areThe CCNA Exploration 3 LAN Switching and Wireless labs arebased on the features of the Cisco 2960 switch.based on the features of the Cisco 2960 switch.
Catalyst 2960Catalyst 2960
The Catalyst 2960 series switches offers the following:The Catalyst 2960 series switches offers the following:Forwarding rates from 16Forwarding rates from 16 GbGb/s to 32/s to 32 GbGb/s/sMultilayered switchingMultilayered switchingQoSQoS features to support IP communicationsfeatures to support IP communicationsAccess control lists (ACLs)Access control lists (ACLs)Fast Ethernet and Gigabit Ethernet connectivityFast Ethernet and Gigabit Ethernet connectivityUp to 48 10/100 ports or 10/100/1000 ports with additional dualUp to 48 10/100 ports or 10/100/1000 ports with additional dualpurpose gigabit uplinkspurpose gigabit uplinks
The Catalyst 2960 series of switches do not supportThe Catalyst 2960 series of switches do not support PoEPoE..
The Catalyst 2960 series supports the Cisco IOS CLI,The Catalyst 2960 series supports the Cisco IOS CLI,integrated web management interface, and Cisco Networkintegrated web management interface, and Cisco NetworkAssistant. This switch series supports console and auxiliaryAssistant. This switch series supports console and auxiliaryaccess to the switch.access to the switch.
To learn more about the Catalyst 2960 series of switches, visitTo learn more about the Catalyst 2960 series of switches, visithttp://www.cisco.com/en/US/products/ps6406/index.html.http://www.cisco.com/en/US/products/ps6406/index.html.
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For Small and Medium Sized Business (SMB)For Small and Medium Sized Business (SMB)
The Cisco Catalyst 3560 series is a line of enterpriseThe Cisco Catalyst 3560 series is a line of enterprise--classclassswitches that include support forswitches that include support for PoEPoE,, QoSQoS, and advanced, and advancedsecurity features such as ACLs.security features such as ACLs.
These switches are ideal access layer switches for smallThese switches are ideal access layer switches for smallenterprise LAN access or branchenterprise LAN access or branch--office converged networkoffice converged networkenvironments.environments.
The Cisco Catalyst 3560 Series supports forwarding rates ofThe Cisco Catalyst 3560 Series supports forwarding rates of
Catalyst 3560Catalyst 3560
-- .. The Catalyst 3560 series switches are available in differentThe Catalyst 3560 series switches are available in different
fixed configurations:fixed configurations:Fast Ethernet and Gigabit Ethernet connectivityFast Ethernet and Gigabit Ethernet connectivityUp to 48 10/100/1000 ports, plus four small formUp to 48 10/100/1000 ports, plus four small form--factorfactorpluggable (SFP) portspluggable (SFP) portsOptional 10 Gigabit Ethernet connectivity in the Catalyst 3560Optional 10 Gigabit Ethernet connectivity in the Catalyst 3560--EEmodelsmodelsOptional IntegratedOptional Integrated PoEPoE (Cisco pre(Cisco pre--standard and IEEE 802.3af);standard and IEEE 802.3af);up to 24 ports with 15.4 watts or 48 ports with 7.3 wattsup to 24 ports with 15.4 watts or 48 ports with 7.3 watts
To learn more about the Catalyst 3560 series of switches, visitTo learn more about the Catalyst 3560 series of switches, visithttp://www.cisco.com/en/US/products/hw/switches/ps5528/indhttp://www.cisco.com/en/US/products/hw/switches/ps5528/index.html.ex.html.
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For Small and Medium Sized Business (SMB)For Small and Medium Sized Business (SMB)
The Cisco Catalyst 3750 series of switches are ideal for accessThe Cisco Catalyst 3750 series of switches are ideal for accesslayer switches in midsize organizations and enterprise branchlayer switches in midsize organizations and enterprise branchoffices.offices.
This series offers forwarding rates from 32This series offers forwarding rates from 32 GbGb/s to 128/s to 128 GbGb/s/s(Catalyst 3750(Catalyst 3750--E switch series).E switch series).
The Catalyst 3750 series supports CiscoThe Catalyst 3750 series supports Cisco StackWiseStackWisetechnology.technology. StackWiseStackWise technology allows you to interconnecttechnology allows you to interconnectup to nine physical Catalyst 3750 switches into one logicalup to nine physical Catalyst 3750 switches into one logical
Catalyst 3750Catalyst 3750
sw c us ng a gsw c us ng a g --per ormanceper ormance s , re un an ,s , re un an ,backplane connection.backplane connection.
The Catalyst 3750 series switches are available in differentThe Catalyst 3750 series switches are available in differentstackable fixed configurations:stackable fixed configurations:
Fast Ethernet and Gigabit Ethernet connectivityFast Ethernet and Gigabit Ethernet connectivityUp to 48 10/100/1000 ports, plus four SFP portsUp to 48 10/100/1000 ports, plus four SFP portsOptional 10 Gigabit Ethernet connectivity in the Catalyst 3750Optional 10 Gigabit Ethernet connectivity in the Catalyst 3750--EEmodelsmodelsOptional IntegratedOptional Integrated PoEPoE (Cisco pre(Cisco pre--standard and IEEE 802.3af);standard and IEEE 802.3af);up to 24 ports with 15.4 watts or 48 ports with 7.3 wattsup to 24 ports with 15.4 watts or 48 ports with 7.3 watts
To learn more about the Catalyst 3750 series of switches, visitTo learn more about the Catalyst 3750 series of switches, visithttp://www.cisco.com/en/US/products/hw/switches/ps5023/indehttp://www.cisco.com/en/US/products/hw/switches/ps5023/index.html.x.html.
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For Small and Medium Sized Business (SMB)For Small and Medium Sized Business (SMB)
The Catalyst 4500 is the first midrange modular switchingThe Catalyst 4500 is the first midrange modular switchingplatform offering multilayer switching for enterprises, smallplatform offering multilayer switching for enterprises, small-- totomediummedium--sized businesses, and service providers.sized businesses, and service providers.
With forwarding rates up to 136With forwarding rates up to 136 GbGb/s, the Catalyst 4500 series/s, the Catalyst 4500 seriesis capable of managing traffic at the distribution layer.is capable of managing traffic at the distribution layer.
The modular capability of the Catalyst 4500 series allows forThe modular capability of the Catalyst 4500 series allows forvery high port densities through the addition of switch port linevery high port densities through the addition of switch port linecards to its modular chassis.cards to its modular chassis.
Catalyst 4500Catalyst 4500
..
The Catalyst 4500 series offers multilayerThe Catalyst 4500 series offers multilayer QoSQoS andandsophisticated routing functions.sophisticated routing functions.
The Catalyst 4500 series switches are available in differentThe Catalyst 4500 series switches are available in differentmodular configurations:modular configurations:
Modular 3, 6, 7, and 10 slot chassis offering different layers ofModular 3, 6, 7, and 10 slot chassis offering different layers ofscalabilityscalabilityHigh port density: up to 384 Fast Ethernet or Gigabit EthernetHigh port density: up to 384 Fast Ethernet or Gigabit Ethernetports available in copper or fiber with 10 Gigabit uplinksports available in copper or fiber with 10 Gigabit uplinksPoEPoE (Cisco pre(Cisco pre--standard and IEEE 802.3af)standard and IEEE 802.3af)
Dual, hotDual, hot--swappable internal AC or DC power suppliesswappable internal AC or DC power suppliesAdvanced hardwareAdvanced hardware--assisted IP routing capabilitiesassisted IP routing capabilities
To learn more about the Catalyst 4500 series of switches, visitTo learn more about the Catalyst 4500 series of switches, visithttp://www.cisco.com/en/US/products/hw/switches/ps4324/indehttp://www.cisco.com/en/US/products/hw/switches/ps4324/index.html.x.html.
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For Small and Medium Sized Business (SMB)For Small and Medium Sized Business (SMB)
The Catalyst 4900 series switches are designed and optimizedThe Catalyst 4900 series switches are designed and optimizedfor server switching by allowing very high forwarding rates.for server switching by allowing very high forwarding rates.
The Cisco Catalyst 4900 is not a typical access layer switch. ItThe Cisco Catalyst 4900 is not a typical access layer switch. Itis a specialty access layer switch designed for data centeris a specialty access layer switch designed for data centerdeployments where many servers may exist in close proximity.deployments where many servers may exist in close proximity.
This switch series supports dual, redundant power supplies andThis switch series supports dual, redundant power supplies andfans that can be swapped out while the switch is still running.fans that can be swapped out while the switch is still running.This allows the switches to achieve hi her availabilit which isThis allows the switches to achieve hi her availabilit which is
Catalyst 4900Catalyst 4900
,,critical in data center deployments.critical in data center deployments.
The Catalyst 4900 series switches support advancedThe Catalyst 4900 series switches support advanced QoSQoSfeatures, making them ideal candidates for the backfeatures, making them ideal candidates for the back--end IPend IPtelephony hardware. Catalyst 4900 series switches do nottelephony hardware. Catalyst 4900 series switches do notsupport thesupport the StackWiseStackWise feature of the Catalyst 3750 series norfeature of the Catalyst 3750 series nordo they supportdo they support PoEPoE..
The Catalyst 4900 series switches are available in differentThe Catalyst 4900 series switches are available in differentfixed configurations:fixed configurations:
Up to 48 10/100/1000 ports with four SFP ports or 48Up to 48 10/100/1000 ports with four SFP ports or 48
10/100/1000 ports with two 10GbE ports10/100/1000 ports with two 10GbE portsDual, hotDual, hot--swappable internal AC or DC power suppliesswappable internal AC or DC power suppliesHotHot--swappable fan traysswappable fan trays
To learn more about the Catalyst 4900 series of switches, visitTo learn more about the Catalyst 4900 series of switches, visithttp://www.cisco.com/en/US/products/ps6021/index.html.http://www.cisco.com/en/US/products/ps6021/index.html.
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For Small and Medium Sized Business (SMB)For Small and Medium Sized Business (SMB)
The Catalyst 6500 series modular switch is optimized forThe Catalyst 6500 series modular switch is optimized forsecure, converged voice, video, and data networks.secure, converged voice, video, and data networks.
The Catalyst 6500 is capable of managing traffic at theThe Catalyst 6500 is capable of managing traffic at thedistribution and core layers. The Catalyst 6500 series is thedistribution and core layers. The Catalyst 6500 series is thehighest performing Cisco switch, supporting forwarding rates uphighest performing Cisco switch, supporting forwarding rates upto 720to 720 GbGb/s./s.
The Catalyst 6500 is ideal for very large network environmentsThe Catalyst 6500 is ideal for very large network environmentsfound in enter rises mediumfound in enter rises medium--sized businesses and servicesized businesses and service
Catalyst 6500Catalyst 6500
,, ,,providers.providers.
The Catalyst 6500 series switches are available in differentThe Catalyst 6500 series switches are available in differentmodular configurations:modular configurations:
Modular 3, 4, 6, 9, and 13 slot chassisModular 3, 4, 6, 9, and 13 slot chassisLAN/WAN service modulesLAN/WAN service modulesPoEPoE up to 420 IEEE 802.3af Class 3 (15.4W)up to 420 IEEE 802.3af Class 3 (15.4W) PoEPoE devicesdevicesUp to 1152 10/100 ports, 577 10/100/1000 ports, 410 SFPUp to 1152 10/100 ports, 577 10/100/1000 ports, 410 SFPGigabit Ethernet ports, or 64 10 Gigabit Ethernet portsGigabit Ethernet ports, or 64 10 Gigabit Ethernet portsDual, hotDual, hot--swappable internal AC or DC power suppliesswappable internal AC or DC power supplies
Advanced hardwareAdvanced hardware--assisted IP routing capabilitiesassisted IP routing capabilities To learn more about the Catalyst 6500 series of switches, visitTo learn more about the Catalyst 6500 series of switches, visit
http://www.cisco.com/en/US/products/hw/switches/ps708/index.http://www.cisco.com/en/US/products/hw/switches/ps708/index.htmlhtml
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8/3/2019 Ch 01 Lan Design
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SwitchesSwitches Small and Medium Business (SMB)Small and Medium Business (SMB)
AccessAccess DistributionDistribution CoreCore
Bandwidth (Link) Aggregation
FastEthernet/Gigabit Ethernet
Gigabit Ethernet/10 Gigabit Ethernet
High Forwarding Rate
La er 3 Su ort
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SummarySummary
Port Security
Power Over Ethernet (PoE)
Quality of Service (QoS)
Redundant Components
Security Policies/Access Control Lists
Very High Forwarding Rate
VLANs
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