Repeater
It regenerates weak data signal to cover large distance.
Maximum 4 repeaters can be used in a single wire or frequency.
It is a layer 1 device.
It is used in star topology as a MAU (Multiple Access Unit).
It is available in 4, 8, 16 & 24 RJ45 ports.
It connects computers with TPC (Twisted Pair Cable) and RJ45 connector.
It works in single collision domain and single broadcast domain.
It is a layer 1 device.
Types of Hub:-
It does not use extra power.
It supports up to 10mbps data transmission.
It shares speed for each node.
It does not regenerate data signals.
It supports up to 100 mbps speed.
It regenerate data signal at each port.
It uses extra power with adapter.
It is a layer 2 device.
It works at CSMA/CD (Carrier Sense Multiple Access with Collision Detection) technique standardizes by IEEE (The Institute of Electrical and Electronics Engineers).
It supports data transmission speed up to Gbps.
It creates a filter table that contains computer’s MAC (Media Access Control) address and assigns the switch port.
Initially, it supports single broadcast domain but after creation of table, it works in unicasting mode.
February 6th, 2013
Types of switch:-
It is based on ASIC (Application Specific Integrated Circuit).
It has capability to forward data frames on the basis of MAC (Media Access Control) address but it does not provide any security and configuration.
It has all feature of unmanageable switch but it can be configure through a terminal or remotely because it can be in network with IP (Internet Protocol) address.
It creates a filter table .i.e. MAC (Media Access Control) address table.
A switch’s MAC address table is also called the switching table, or bridging table, or even the CAM (Content Addressable Memory), in reference to the type of physical memory used to store the table.
This table stores MAC (Media Access Control) address and related port information in the table.
It provides port security, VLAN (Virtual Local Area Network) configuration, etc.
It has Operating System file.
It is a layer 2 device.
It is based on operating system.
It break broadcast domain into 2 segments.
It is available with 2 or 4 Ethernet ports.
Boughter has feature of bridge and router both because it can divide network segment and also provide communication between networks based on different series of IP.
It is cheaper than router.
It is a layer 3 device.
It is used for communication between two or more different network based on different subnet of IP.
It has flash memory, NVRAM (Non Volatile RAM), RAM (Random Access Memory), Processor and a circuit board.
It has IOS (Internetwork Operating System).
It creates routing table .i.e. a collection of best route for different destination network.
It has different interfaces:-
· Ethernet port - Used to connect LAN (Local Area Network) with a WAN (Wide Area Network) through router.
· Serial interface - Used for router to router connectivity with a serial cable or for connection with WAN at the lease line.
· Console port - It is used to connect with a terminal for configuration.
· Auxiliary port – Used for router configuration through modem.
· BRI/PRI (Basic Rate Interface/Primary Rate Interface) – It is used for ISDN (Integrated Services Digital Network) line connectivity.
· An Integrated Services Digital Network (ISDN) interface to primary rate access.
· Primary rate access consists of a single 64-kbps D channel plus 23 (T1) or 30 (E1) B channels for voice or data.
Types of router:-
(In case of De-modular router all ports are fix with router but in case of modular router some slots are available to attach card as per requirement.)
It is used to filter data packets on the basis of services and IP address.
It works at transport layer.
It is a layer 1 device.
Hub
It is used in star topology as a MAU (Multiple Access Unit).
It is available in 4, 8, 16 & 24 RJ45 ports.
It connects computers with TPC (Twisted Pair Cable) and RJ45 connector.
It works in single collision domain and single broadcast domain.
It is a layer 1 device.
Types of Hub:-
· Passive or Dumb Hub:-
It does not use extra power.
It supports up to 10mbps data transmission.
It shares speed for each node.
It does not regenerate data signals.
Active or Intelligent Hub:-
It supports up to 100 mbps speed.
It regenerate data signal at each port.
It uses extra power with adapter.
Switch
It is a layer 2 device.
It works at CSMA/CD (Carrier Sense Multiple Access with Collision Detection) technique standardizes by IEEE (The Institute of Electrical and Electronics Engineers).
It supports data transmission speed up to Gbps.
It creates a filter table that contains computer’s MAC (Media Access Control) address and assigns the switch port.
Initially, it supports single broadcast domain but after creation of table, it works in unicasting mode.
February 6th, 2013
Types of switch:-
· Unmanageable switch:-
It is based on ASIC (Application Specific Integrated Circuit).
It has capability to forward data frames on the basis of MAC (Media Access Control) address but it does not provide any security and configuration.
· Manageable switch:-
It has all feature of unmanageable switch but it can be configure through a terminal or remotely because it can be in network with IP (Internet Protocol) address.
It creates a filter table .i.e. MAC (Media Access Control) address table.
A switch’s MAC address table is also called the switching table, or bridging table, or even the CAM (Content Addressable Memory), in reference to the type of physical memory used to store the table.
This table stores MAC (Media Access Control) address and related port information in the table.
It provides port security, VLAN (Virtual Local Area Network) configuration, etc.
It has Operating System file.
Bridge
It is a layer 2 device.
It is based on operating system.
It break broadcast domain into 2 segments.
It is available with 2 or 4 Ethernet ports.
Boughter
Boughter has feature of bridge and router both because it can divide network segment and also provide communication between networks based on different series of IP.
It is cheaper than router.
Router
It is a layer 3 device.
It is used for communication between two or more different network based on different subnet of IP.
It has flash memory, NVRAM (Non Volatile RAM), RAM (Random Access Memory), Processor and a circuit board.
It has IOS (Internetwork Operating System).
It creates routing table .i.e. a collection of best route for different destination network.
It has different interfaces:-
· Ethernet port - Used to connect LAN (Local Area Network) with a WAN (Wide Area Network) through router.
· Serial interface - Used for router to router connectivity with a serial cable or for connection with WAN at the lease line.
· Console port - It is used to connect with a terminal for configuration.
· Auxiliary port – Used for router configuration through modem.
· BRI/PRI (Basic Rate Interface/Primary Rate Interface) – It is used for ISDN (Integrated Services Digital Network) line connectivity.
· An Integrated Services Digital Network (ISDN) interface to primary rate access.
· Primary rate access consists of a single 64-kbps D channel plus 23 (T1) or 30 (E1) B channels for voice or data.
Types of router:-
· De-modular or static router.
· Modular router.
(In case of De-modular router all ports are fix with router but in case of modular router some slots are available to attach card as per requirement.)
Firewall
It is used to filter data packets on the basis of services and IP address.
It works at transport layer.
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