What is the difference between layer 2 and layer 3 in the
OSI model?

Answer Posted / santhi

layer2,datalink layer works based on mac address where as
layer3 i.e., network layer works based on ip address.layer2
sends data(frames) to the network layer. layer2 performs
error detection but not error recovery.

layer2 devices are switches,bridges.L3 devices are
routers,etc.,. switch maintains mac table internally, router
maintains routing table internally.

In L2, the devices within the same network will
communicate,but In L3 , we can communicate with other
networks also.ie., different networks communicate by using
router or L3 switches etc.,.

Is This Answer Correct ?    13 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Tell me about Optical Fiber.

588


Do you know what is the type of signaling used between two exchanges?

537


What is bts? What are its different configurations?

577


What is snmp protocol?

555


Tell me at what frequency voice is sampled?

543






What do you know about telecommunications?

589


What is a full-class C in CIDR notation?

12109


Explain what is bts?

604


I want to understand what is BTS? What are its different configurations and what is the power consumption/peak current for each of these types of BTS?

13823


Tell me what is the maximum number of satellite hops allowed in voice communication?

574


How cdma works?

562


Can I have some basic interview questions on Cramer Development, OSS, COT etc? I am expecting an interview call from the client. I have 2 years of experience in Cramer development in a Telecom Industry.

6703


Explain what is bts? What are its different?

534


Do you know how does the traceroute work?

522


What is the purpose of gsm devise and what is gprs?

574