1 votes 1 votes For the following two $16$-bit messages, find the Internet checksum: $0001 \; 1000 \; 0001 \; 0010$ $1011 \; 1000 \; 1011 \; 0011$ Computer Networks drdocse-2022-paper2 computer-networks crc-polynomial 3-marks descriptive + – admin asked Dec 15, 2022 • recategorized Jan 26, 2023 by Lakshman Bhaiya admin 615 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes To calculate the Internet checksum for the two 16-bit messages, you can follow these steps: Convert the two messages to binary and concatenate them: 0001 1000 0001 0010 1011 1000 1011 0011 Split the concatenated message into 16-bit words: 0001 1000 0001 0010 1011 1000 1011 0011 Calculate the sum of the 16-bit words: 0001 1000 0001 0010 1011 1000 1011 0011 1111 0000 1111 0001 If the sum is greater than 16 bits, add the carry to the least significant bits: 1111 0000 1111 0001 0000 0000 0001 0000 1111 0001 0000 0001 Take the one's complement of the sum to get the checksum: 0000 1110 1111 1110 The Internet checksum for the two 16-bit messages is therefore 0000 1110 1111 1110 (in binary). rsansiya111 answered Dec 16, 2022 rsansiya111 comment Share Follow See 1 comment See all 1 1 comment reply AGNIDEB MUKHERJEE commented Mar 15, 2023 reply Follow Share i think the addition is wrong… 0 votes 0 votes Please log in or register to add a comment.
