What is Layer 3 or Multilayer Switch || Layer 3 switch vs Router | Function and working of L3 Switch
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- Опубликовано: 9 апр 2020
- Welcome to another exciting episode from Cyberwings Security!
A layer 3 switch, also known as a multilayer switch, is a network switch that can perform routing functions in addition to switching. This means that it can forward packets between different networks, or subnets, based on their IP addresses. Layer 3 switches are often used in enterprise networks to route traffic between different VLANs (virtual local area networks).
How does a layer 3 switch work?
Layer 3 switches use a routing table to determine the best path for a packet to take. The routing table is a database of IP addresses and the associated subnets. When a layer 3 switch receives a packet, it looks up the destination IP address in the routing table to determine which port to forward the packet to.
Benefits of using layer 3 switches
Layer 3 switches offer a number of benefits over traditional layer 2 switches, including:
Improved performance: Layer 3 switches can forward traffic between subnets faster than layer 2 switches because they do not need to perform any MAC address lookups.
Reduced network complexity: Layer 3 switches can simplify network design by eliminating the need for dedicated routers.
Increased scalability: Layer 3 switches can support larger networks than layer 2 switches because they can forward traffic between multiple subnets.
When to use layer 3 switches
Layer 3 switches are a good choice for networks that:
Have multiple subnets
Need high-performance routing between subnets
Need to simplify the network design
Need to support a large number of devices
Examples of layer 3 switches
Some popular examples of layer 3 switches include:
Cisco Catalyst 9000 series
Juniper Networks MX series
HPE Aruba CX series
Dell EMC PowerSwitch S series
Conclusion
Layer 3 switches are a powerful tool that can improve the performance, scalability, and manageability of networks. They are a good choice for networks of all sizes, from small businesses to large enterprises.
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Very good explanation.
Great information
Thnks sr jee
God bless
Hi sir
Great Information.
just i want to know instead of cisco router we can use layer 3 switch
Sir, when will you start CCNA
Do you provide any CCNA live class
i want to take live class from you
Yes we provide online live classes of CCNA aslo.
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