Leading two octets of message digest: L,
To enable the recipient to determine if the correct public key (k(A)
e ) was used to decrypt the message digest for authentication, by comparing this
plaintext copy of the first two octets with the first two octets of the
decrypted digest.
These octets also serve as a 16-bit frame-check sequence for the message,
for authentication and error detection.
maximum 60 octets minimum 20 octets
To provide an accurate answer, I would need to see the specific context or content of the highlighted octets you're referring to. Please provide the octets or additional details, and I'll be happy to help!
Octets do.
120
2
4
In the Telecommunications book on Page 180. The answer is Yes it does have a fixed-length frame of 53 octets.
120 octets
A Frame Relay frame typically consists of a minimum of 2 octets for the header and can have a variable size for the data payload, which can range up to 4096 octets (or 4,096 bytes), depending on the configuration and network conditions. Therefore, the total size of a Frame Relay frame can vary significantly, but the header is fixed at 2 octets, with the remaining size allocated for the payload and any optional trailers.
IPv4 addresses have 4 octets, each octet separated by a period. For example, at this time, one of Yahoo's servers has an ip address of 67.195.160.76.
You don't need to worry about changing any of the octets when the values of an octet contain leading zeros. The two examples are effectively the same.
Because the octets equal to 0 and 255 are reserved