What is protocol data unit, Computer Networking

Assignment Help:

What is Protocol Data Unit?

The data unit in the LLC level is known as the protocol data unit (PDU). The PDU having of four fields a destination service access point (DSAP), a source service access points (SSAP), a control field and an information field. DSAP, SSAP are addresses used by the LLC to recognize the protocol stacks on the receiving and sending machines that are produce and using the data. The control field specifies whether the PDU frame is an information frame (I - frame) or a supervisory frame (S - frame) or a unnumbered frame (U - frame).  

 


Related Discussions:- What is protocol data unit

Describe differential manchester, Q. Describe Differential Manchester? ...

Q. Describe Differential Manchester? - Inversion at middle of bit interval is utilized for synchronization - Presence or else absence of additional transition at beginning o

What is wdm, What is WDM? WDM is conceptually the similar as FDM, excep...

What is WDM? WDM is conceptually the similar as FDM, except that the multiplexing and demultiplexing includes light signals transmitted by fiber optics channel.

Determine the switch in a physical ring, Switch In a physical ring ...

Switch In a physical ring configuration any disabled or else disconnected node can disable the entire network Use of a switch can permit the ring to bypass an inactive

Illustrate the bellman-ford algorithm, Illustrate the Bellman-Ford algorith...

Illustrate the Bellman-Ford algorithm The Bellman-Ford algorithm uses only on information from its neighbours and knowledge of its link costs, to update it costs and paths. Dij

Which two commands shows the cisco ios filename, These two command show the...

These two command show the cisco IOS filename a) show ver b) show flash

Describe the count-to-infinity problem in distance vector, Describe the cou...

Describe the count-to-infinity problem in distance vector

cisco ios for which encapsulation, "arpa" is used by the Cisco IOS for whi...

"arpa" is used by the Cisco IOS for which encapsulation types Ans) Ethernet_II

What is retransmission timer, Q. What is Retransmission timer? Retrans...

Q. What is Retransmission timer? Retransmission timer if an ACK is received previous to the timer goes off - destroy the timer if the timer goes off before ACK a

Encrypted with a symmetric key, Alice sends a message to Bob, encrypted wit...

Alice sends a message to Bob, encrypted with a symmetric key. Bob decrypts the message and finds it is a purchase order for an expensive workstation. When the time comes to deliver

What do you mean by auto-reconfiguration, What do you mean by Beaconing an...

What do you mean by Beaconing and Auto-Reconfiguration? When a station does not receive a message from its nearest active upstream neighbor, it sends out a warning, otherwise c

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd