Assume that the link layer uses the flag bytes with byte stuffing approach for f

Question

Assume that the link layer uses the flag bytes with byte stuffingapproach for framing, with the following details:

The beginning of a data frame is indicated by the special flag bytes: DLESTX

The end of a data frame is indicated by the special flag bytes: DLEETX

The special escape bytes DLE are used for escaping accidental occurrences of either the flag bytes or the escape bytes within the data.

For simplicity, assume that no other header/trailer information is added to the data.

The following byte stream represents data received by the link layer of a computer. For simplicity, assume that there are no errors in the byte stream. Retrieve the original data of each frame within this received byte stream.

DLESTXASCDLEDLESETXDLEDLESTXDLEETXDLESTXATCPDLEETX

IMPORTANT: List each frame separately. If you do not have any more frames to list, enter N/A as your answer.

Do not include any leading or trailing spaces in your answer.

Frame Number

Original Data

1

2

3

4

Frame Number

Original Data

1

2

3

4

Explanation / Answer

If you have any doubt, please give me comment....

Frame Number

Original Data

1

ASCDLESETXDLESTX

2

ATCP

3

N/A

4

N/A

Explanation:

DLESTXASCDLEDLESETXDLEDLESTXDLEETXDLESTXATCPDLEETX

Frame:1

Frame Start with DLESTX ASCDLEDLESETXDLEDLESTXDLEETXDLESTXATCPDLEETX

Data : ASC   DLEDLESETXDLEDLESTXDLEETXDLESTXATCPDLEETX

DLE is escape bye D will escape DLESETXDLEDLESTXDLEETXDLESTXATCPDLEETX

Data DLESETX   DLEETXDLESTXATCPDLEETX

DLEETX is end of frame DLESTXATCPDLEETX

Frame 2:

DLESTX is start of frame ATCPDLEETX

Data: ATC DLEETX

DLEETX is end of frame

Frame Number

Original Data

1

ASCDLESETXDLESTX

2

ATCP

3

N/A

4

N/A

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