Hubs in network devices in hindi – Computer network

Hubs, jo ki network hubs ya Ethernet hubs ke naam se bhi jaane jate hain, networking devices hote hain jo multiple devices ko ek local area network (LAN) mein connect karne ke liye istemal hote hain. Ye devices OSI model ke physical layer (Layer 1) par kaam karte hain aur unka mukhya kaam signal amplification aur distribution hai.

Computer Network के ये Topics के बारे में जानें :-

Hubs ke mukhya kaam hai signals ko receive karna jo unhe devices se aate hain. Ye signals ko amplify karte hain, yani unki strength ko badhate hain. Fir ye amplified signals ko hub ke saare connected devices tak distribute karte hain. Is tarah se, hub devices ke beech communication ko facilitate karta hai.

Hubs in network devices in hindi

Hubs typically multiple ports (such as 4, 8, or 16 ports) hote hain, jinhe devices like computers, printers, switches, aur routers se connect kiya ja sakta hai. Jab ek device se hub tak data transmit hota hai, toh hub us data ko saare connected devices tak forward kar deta hai. Har connected device, jo ki ek hub port se connect hota hai, data ko receive kar leta hai. Is tarah se, hub devices ko ek single collision domain mein connect karke network communication ko enable karta hai.

Hubs ka drawback hai ki jab ek device data transmit karti hai, toh woh data saare connected devices tak forward ho jata hai, chahe woh device us data ka recipient ho ya nahi. Isse network bandwidth waste hota hai aur collisions ka risk bhi badh jata hai. Yeh “shared” medium par kaam karte hain, jisse multiple devices ko ek saath data transmit karna padta hai, leading to congestion and reduced performance.

Aaj kal, hubs ke use kam ho gaye hain, aur switches jaise advanced devices ne unki jagah le li hai. Switches smarter hote hain aur data ko specific devices tak forward karne ke liye MAC addresses ka istemal karte hain, jisse network efficiency aur performance improve hoti hai.

Lekin, hubs ka use specific scenarios mein ho sakta hai, jaise ki testing purposes ya small-scale networks mein.

Hubs in network devices in hindi
Hubs in network devices in hindi

Advantage of Hubs in network devices in hindi

Hubs ke istemal se kuch faide hote hain:

  1. Easy Connectivity: Hubs provide a simple and straightforward way to connect multiple devices in a network. They have multiple ports that allow devices to be easily plugged in and connected without the need for complex configuration.

  2. Cost-Effective Solution: Hubs are generally more affordable compared to switches or routers. They are a cost-effective solution for small-scale networks or temporary setups where advanced features or high-performance are not required.

  3. Signal Distribution: Hubs distribute incoming signals to all connected devices, ensuring that each device receives the transmitted data. This makes them useful in scenarios where broadcasting or multicasting of data is required.

  4. Network Expansion: Hubs can be cascaded or daisy-chained together to expand the number of available ports and connect more devices. This provides flexibility in network expansion without the need for significant infrastructure changes.

  5. Learning and Troubleshooting: Hubs can be used for learning and troubleshooting purposes. They allow network administrators or technicians to capture and analyze network traffic for diagnostic or educational purposes.

However, it’s important to note that hubs have certain limitations and drawbacks. They operate in a shared collision domain, which means that all connected devices share the same bandwidth and can potentially cause collisions and network congestion. Additionally, they lack the advanced features and performance benefits offered by switches and routers.

Overall, hubs can be a suitable choice for basic network connectivity needs or specific scenarios where cost-effectiveness and simplicity are prioritized over advanced functionality and performance.

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