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Authors:
James F. Kurose, Keith W. Ross
Chapter:
The Link Layer: Links,access Networks, And Lans
Exercise:
Problems
Question:3 | ISBN:9780132856201 | Edition: 6

Question

Suppose the information portion of a packet (D in Figure 5.3) contains 10 bytes consisting of the 8-bit unsigned binary ASCII representation of string “Networking.” Compute the Internet checksum for this data.

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Answer

Refer D in Figure5.3 in text book.

Consider the data:

Consider data: “Networking.” 

The ASCII value of word: "Networking":

1 0

Discussions

Syed H kazmi

In 3rd Step Binary of 105  i-e, 0110 1001 should be added instead of 0111 0111. So the checksum in my opinion comesout to be 

1111 0011 1101 1111. 

Correct me if i am wrong.

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lun phuy chaur

Post the discussion to improve the above solution.