osi layer.

[ilnaiduccna]

Hi folks,

Can any body give full clear info about below question.

1. In which layer of the OSI mode error detection & correction will happen?

2. What about the CIDR?

3. What will VLSM do?

Regards,

Naidu.

[Danilo Dy]

Hi,

1. Layer 2

- Check this nice OSI from WildPackets http://www.telematica.gr/Product/Cat/pdf/osi.pdf

2. What is your question about CIDR (Classless Inter-Domain Routing)?

3. Check this link for VLSM and CIDR http://www.cisco.com/warp/public/701/3.html

Regards,

Dandy

[ilnaiduccna]

Hi Dandy,

Thanks you for your help.

1. Layer 2 is it Datalink Layaer only.

2. yes I want info about CIDR only like how it will work and use of it.

Regards,

Naidu.

[amit.seth]

1.Error detection is done at Layer2.Error correction may ge done at this layer.Howerver it is the resoponsiblity of the layer4 to do error correction.

Please take a look at the following links:

http://en.wikipedia.org/wiki/Transport_layer

http://en.wikipedia.org/wiki/Data_link_layer

2.Classless interdomain routing, is the standard based interpretation of the ip address in the form A.B.C.D/n where n=number of bits in the network portion of the address.

For more details please check the following link

http://en.wikipedia.org/wiki/CIDR

HTH,

Amit