What are the L2 and L3 protocols?

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What are the L2 and L3 protocols?

Different types of network Protocols (L2 and L3)

  • Layer 2: It is a data link layer. Mac address, Ethernet, Token Ring, and Frame Relay are all examples of Data link layer.
  • Layer 3: It is a network layer that determines the best available path in the network for communication. An IP address is an example of layer3.

What is the difference between L2 and L3 switch?

A Layer 2 switch works with MAC addresses only and does not care about IP address or any items of higher layers. That means, a Layer 3 switch has both MAC address table and IP routing table, and handles intra-VLAN communication and packets routing between different VLANs.

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What are protocols in Cisco?

IGRP (legacy): IGP, distance vector, classful protocol developed by Cisco (deprecated from 12.2 IOS and later) RIPv2: IGP, distance vector, classless protocol. EIGRP: IGP, distance vector, classless protocol developed by Cisco. OSPF: IGP, link-state, classless protocol.

What are L2 protocols?

Layer 2 protocols are a list of communication protocols used by Layer 2 devices (such as network interface cards (NIC), switches, multiport bridges, etc.) to transfer data in a wide area network, or between one node to another in a local area network.

Is a NIC Layer 1 or 2?

When referring to the OSI layers, a Network Interface Card, operates at Layer 2 of the network – it has a physical component, but it also has a MAC address, and when transmitting data, it includes its MAC address in the header as the Source MAC Address – this makes it Layer 2 as a device is associated with the highest …

What are l2 protocols?

Is DHCP Layer 2 or 3?

application layer
Dynamic Host Configuration Protocol(DHCP) is an application layer protocol which is used to provide: Subnet Mask (Option 1 – e.g., 255.255. 255.0) Router Address (Option 3 – e.g., 192.168.

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Which two protocols are service discovery protocols?

The W3C published a working draft specification for service discovery that mentions two existing standards, DNS-based service discovery (DNS-SD) and Simple Service Discovery Protocol (SSDP).

What is the difference between Layer 2 and Layer 3 protocols?

Layer 2 or data link layer protocol are IP, IPX and Appletalk and MAC address u to send packet. Layer 3 or Network layer protocols are BGP, EIGRP, RIP, OSPF are routing protocols and used to send packet over networks.

What is the difference between L2 and L3 VPN?

L2 and L3 is simply the connectivity on the dat link layer and network layer respectively. With a L2 VPN, the router at site A, and the router at site B, behave as if they are in the same network, and may become ospf or eigrp neighbors with each other, as if they were in the same VLAN.

What is layer 3 dynamic routing protocol?

Layer 3 Dynamic Routing Protocols. While Layer 2 protocols such as STP operate within a LAN environment, routing between subnets requires Layer 3 dynamic routing to minimize management costs and maximize network uptime.

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What is the difference between L2 and L3 switches?

L3 Switches can also operate in L2 mode, but can go deeper, and look at the packets within the rames, and switch them accordingly. L3 switches are essentially a fast (but somewhat limited, in most incarnations) router. L2 switches define collision domains, L3 switches define broadcast domains (there are caveats, as usual, but generally speaking).