What are the advantages and disadvantages of switch
Answer Posted / anita
A switch is just a another n/w device which has its own
Advantages and Disadvantages as compared to a
HUB/Router/Bridge etc ... I hope it doesnt have any
disadvantages as such unless and until compared to other
n/w devices[Note : This is just my opinion,please add
details if you have some]
Advantages :
1) Reduces the number of Broadcast domains
2) Supports VLAN's which can help in Logical segmentation
of ports[physical ports].Splitting up the broadcast domain.
3) Intellegent device[compared to Hub's] which can make use
of CAM table for Port to MAC mapping
4) Compared to Bridges ,Switches are more H/w oriented
therefore operations are less CPU intense[Basic operations]
.
5) The cost to number of ports ratio is best .. ie For a
cheaper cost you get switches with more number of ports
available than Routers.
Disadvantages :
1) Not as good as a router in limiting Broadcasts
2) Communication b/w VLAN's need interVLAN routing [Router]
,but these days there are a number of Multilayer switches
available in the market.
3) Handling Multicast packets needs quite a bit of
configuration & proper designing.
4) At times swtiches when in Promiscuos mode is a opening
for Security attacks [Spoofing ip address or capturing
Ethernet Frames using ethereal]
I would definitely arguee with the interviewer that
switches are designed for what they are & there is
disadvatage as such unless it is compared to other layer
devices.At Layer 2 it does what other devices of layer 2
cant do & it was initally meant to work at Layer 2,even
though it works at multiple layers these days.
Is This Answer Correct ? | 30 Yes | 32 No |
Post New Answer View All Answers
What do you mean by link to link layers of OSI reference model? Explain their functions briefly?
Explain different kinds of Switching techniques.
What is Mail Gateway
what is colour port? what is the use with it?
what is disk interleaving? why is disk interleaving adopted?
Explain various cabling techniques used in IEEE 802.3 standard.
Assuming classful addressing, find the no of subnets and the no of hosts per subnet for the following blocks: (i) 122.45.77.32/20 (ii) A class B block having mask of 255.255.192.0
Discuss Shannon’s capacity. What implications does it have ?
What is logical link control
According to you which is the most important OSI layer?
Which one you will use to implement critical section? Binary Semaphore
which are the institutes in mumbai for CCNA training & how much is the cost of teaching and the exam fees?
Compare the maximum window size in go-back-N and selective-repeat ARQs.
Define Explore a world of satellite solutions?
Convert the IP address 197.228.17.56 into binary ?