Bridge vs. Gateway: Know the Difference
By Shumaila Saeed || Published on February 27, 2024
Bridge connects two similar network segments, filtering and forwarding data based on MAC addresses. Gateway connects dissimilar networks, translating different protocols for data communication.
Key Differences
Bridge is a network bridge connects two segments of a similar network, operating at the data link layer of the OSI model. It filters and forwards data based on MAC addresses, ensuring efficient data transmission within a network. A gateway, on the other hand, operates at a higher level in the OSI model. It is a network node that connects dissimilar networks, allowing them to communicate by translating different network protocols.
Shumaila Saeed
Feb 27, 2024
Bridges are primarily used to segment and organize a large network into smaller, more manageable sections. They help in reducing network traffic by filtering data and only allowing necessary data to pass through.
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Feb 27, 2024
While bridges deal with data at the MAC level without changing it, gateways translate data between different protocols. This makes gateways essential for communication between networks that operate on different protocols.
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Feb 27, 2024
Bridges are suitable for relatively simpler networking tasks, enhancing the performance of local networks. Gateways deal with more complex tasks, such as connecting a local network to the internet or different types of networks.
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Feb 27, 2024
Comparison Chart
Layer of Operation
Operates at the data link layer (Layer 2) of OSI model.
Operates at higher layers, often at the network layer.
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Feb 27, 2024
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Function
Connects and manages traffic within similar networks.
Connects and facilitates communication between different networks.
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Data Handling
Filters and forwards data based on MAC addresses.
Translates data between different network protocols.
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Usage Scenario
Used in simple network segmentation and traffic management.
Used in complex networking scenarios, like internet connectivity.
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Compatibility
Works with similar network types and protocols.
Bridges gaps between dissimilar network types and protocols.
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Bridge and Gateway Definitions
Bridge
The supportive piece on string instruments that holds the strings in place.
He carefully adjusted the bridge on his violin.
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Gateway
A device or program providing connectivity between different networks.
The office network uses a gateway to connect to the internet.
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Bridge
A dental appliance replacing one or several adjacent teeth, anchored to neighboring teeth.
She got a dental bridge to replace her missing teeth.
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Gateway
A symbolic entry to a new phase or area.
Graduation is a gateway to new opportunities and challenges.
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Bridge
A trick-taking game using a standard deck of cards, played by four players in two competing partnerships.
They played bridge at the club every Thursday night.
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Gateway
A means of access or entry to a place.
The new highway serves as a gateway to the remote regions of the state.
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Bridge
(computing) A device which connects two or more computer buses, typically in a transparent manner.
This chip is the bridge between the front-side bus and the I/O bus.
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Gateway
Software or hardware that enables communication between computer networks that use different communications protocols. Also called router2.
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Bridge
(programming) A software component connecting two or more separate systems.
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Gateway
(digital communications) In wireless internet, an access point with additional software capabilities such as providing NAT and DHCP, which may also provide VPN support, roaming, firewalls, various levels of security, etc.
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Bridge
(networking) A system which connects two or more local area networks at layer 2 of OSI model.
The LAN bridge uses a spanning tree algorithm.
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Gateway
An opening that can be closed by a gate.
The ornate gateway led to the ancient palace.
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Bridge
(music) A contrasting section within a song that prepares for the return of the original material section.
The lyrics in the song's bridge inverted its meaning.
In the bridge of his 2011 song "It Will Rain", Bruno Mars begs his lover not to "say goodbye."
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Gateway
An experience or activity that serves as an introduction to something else.
For many, college is a gateway to real-world experiences.
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Bridge
(electronics) Any of several electrical devices that measure characteristics such as impedance and inductance by balancing different parts of a circuit
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Bridge
A structure spanning and providing passage over a river, road, or obstacle.
The Golden Gate Bridge is a famous landmark in San Francisco.
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Bridge
A passage providing connection or transition between two phases, segments, or elements.
The bridge in the song seamlessly connected the verse to the chorus.
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Repeatedly Asked Queries
Is a bridge used for managing network traffic?
Yes, a bridge helps in managing and filtering network traffic.
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Feb 27, 2024
What is a bridge in networking?
A bridge in networking is a device that connects and filters traffic between two segments of the same network.
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What is a gateway in networking?
A gateway in networking is a node that connects different networks and translates data for communication between them.
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Can a bridge connect different types of networks?
No, a bridge typically connects segments of the same type of network.
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What layers do gateways operate at in the OSI model?
Gateways operate at higher layers, often at the network layer.
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How does a gateway facilitate internet connectivity?
A gateway facilitates internet connectivity by translating and routing data between different networks.
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Can bridges play a role in improving network performance?
Yes, bridges can improve network performance by reducing unnecessary traffic.
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Does a gateway translate network protocols?
Yes, a gateway translates data between different network protocols.
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Can a gateway be a software application?
Yes, a gateway can be both a hardware device and a software application.
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What is a bridge in music?
In music, a bridge is a section that contrasts with and prepares for the return of the original material section.
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Can a bridge be used for dental cosmetic purposes?
Yes, dental bridges are often used for cosmetic purposes in addition to functional reasons.
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What is a gateway drug?
A gateway drug is a substance that potentially leads to the use of more harmful drugs.
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Is a gateway always a physical device?
No, a gateway can be either a physical device or a software program.
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How does a bridge filter network traffic?
A bridge filters network traffic based on MAC addresses.
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Is a gateway necessary for LAN to WAN communication?
Yes, a gateway is often necessary for communication between a Local Area Network (LAN) and a Wide Area Network (WAN).
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Feb 27, 2024
Are bridges suitable for large and complex networks?
Bridges are more suited for simpler network segmentation, not for large, complex networks.
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What is the main purpose of a bridge in a network?
The main purpose of a bridge is to divide a large network into smaller segments for efficient data management.
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Feb 27, 2024
What is the difference between a router and a gateway?
A router directs data within a network, while a gateway facilitates data communication between different networks.
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Are gateways essential for network security?
Gateways can play a crucial role in network security by controlling data access between networks.
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What is a dental bridge?
A dental bridge is a fixed prosthetic device used to replace one or more missing teeth.
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About Author
Written by
Shumaila SaeedShumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.
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