UNIVERSITY OF WAHPRESENTATION OF COMPUTER NETWORKSPRESENTATION TOPIC: SWITCHPRESENTED BY: ZEESHAN HANIF WAQAS SHAH SYED AJLAAL HAIDERPRESENTED TO: SIR MUDASSIR HUSSAIN

Multiport Networking device Connect multiple devices Intelligent device Maintains a routing and mac address table Processes and forwards data Uses packet switching Have downlinks and uplinks

SWITCH

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Routing Table

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Mac Address Table

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Why We Need A Switch????

Used hubs which were non intelligent A faster way was needed for communication A device which will have less collisions Security and privacy Reliability High performance

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architecture design

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Working

Management of Switches:

Turn particular port range on or off Link bandwidth and duplex settings Priority settings for ports IP management MAC filtering and other types of "port security" features Simple Network Management Protocol (SNMP) monitoring of device and link

health VLAN settings. Creating VLANs Network access control Port mirroring Link aggregation (also known as bonding, trunking or teaming) allows the use

of multiple ports for the same connection achieving higher data transfer rates

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Types of switchesModular switches

High capability switches customized as per network requirement port size can be extended Multi port Ethernet card can be added High cost provides flexibility Catalyst 4K and 6K are examples of modular switches

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Fixed Configuration Non-expandable Less costly multiport Ethernet card cannot be added less flexible Cisco Catalyst 2K, 3K are good examples

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Types of SwitchesUnmanaged Switches

Have no configuration interface plug and play device suitable for small network ports speed can not be individually

controlled does not provide security

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Managed switches have configuration interface provides security precise control applied in large networks management of device made easier very costly ports can be individually controlled

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Smart switches

Provides certain level of management have some capabilities of managed and

unmanaged switches provides configuration interface cost effective alternative of managed

switch

Stackable and Standalone Switches

Stackable: More then one switches

are considered as one unit

Managed, troubleshoot configured as a unit

Increasing availability and reliability

Stand alone: Each switch is deled

as single entity Managed individually Trouble shoot

individually Configured

individually

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Layer 1 switches

Works at first layer of the OSI model

Acts like hubs But have more then

one collision domains

One collision domain per port

Collision domain:Network section where data packets can collide with one another.

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Layer 2 switch

Maintains mac address Do source to

destination delivery Operates at layer 2 of

the OSI model Packets are sent to

specific port depending upon mac addresses

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Layer 3 switches

Operates at layer 3 Has IP addresses Makes delivery

possible from hop to hop

Do routing

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Future planning

The network visionaries are planning about making a switch that will automatically determine an applications network requirements and will automatically set the network characteristics that the application would need moreover the switch it self will decide the access limits of the application which means that the switches will first learn about the applications requirement and then provide network accordingly

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References

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http://www.ieee802.org/1/pages/802.121/1/2016D.html Retrieved 18/1/2016 http://www.ccontrols.com/pdf/Extv3n3.pdf Retrieved 18/1/2016 http://blogs.cisco.com/smallbusiness/understanding-the-different-types-of-ethernet-switches Retrieved 19/1/2016 http://blogs.cisco.com/smallbusiness/understanding-the-different-types-of-ethernet-switches Retrieved 19/1/2016 https://learningnetwork.cisco.com/thread/79585 Retrieved 21/1/2016 http://serverfault.com/questions/123726/whats-the-difference-between-a-layer-2-layer-3-switch Retrieved 21/1/2016 https://documentation.meraki.com/MS/Layer_3_Switching/

Layer_3_versus_Layer_2_Switch_for_VLANs Retrieved 21/1/2016 http://www.networkcomputing.com/networking/5-basic-switch-settings-you-must-know/879127198 Retrieved 21/1/2016 http://www.cisco.com/c/en/us/products/collateral/switches/nexus-7000-series-switches/

data_sheet_c78-574915.html. Retrieved 21/1/2016  http://etherealmind.com/whats-happening-inside-an-ethernet-switch-or-network-switches-for-

virtualization-people/ Retrieved 21/1/2016

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