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

Thick ethernet wiring, THICK ETHERNET WIRING:  It needs thick coax cab...

THICK ETHERNET WIRING:  It needs thick coax cable. AUI cable joins from NIC to transceiver. AUI cable take digital signal from NIC to transceiver. The transceiver creates anal

Low-earth-orbiting leo satellites , LOW-Earth Orbiting have more advantageo...

LOW-Earth Orbiting have more advantageous in Mobile based communication devices like PDAs, Cell phones and automobile communications. The LOW-Earth Orbiting is a satellite of orbit

Record route ip option, The address recorded by a router should be its outg...

The address recorded by a router should be its outgoing interface. That is, if a router forwards a datagram that has the record route option enabled, and if the datagram arrives at

Find the main problems with access points in a wireless lan, Question: ...

Question: Wireless Access points have been known to have various security vulnerabilities that can lead to breach of Secured wired networks. IEEE 802.11 standards have identifi

Comparison and contrast between the osi and tcp-ip model, Q. Comparison and...

Q. Comparison and Contrast between the OSI and TCP-IP Model? This presentation would discuss a few comparison and contrast between the 2 main reference models which use the con

the default settings of ipx delay number, The "ipx delay number" command w...

The "ipx delay number" command will permit an administrator to alter the default settings. Explain the default settings? Ans) For LAN interfaces, one tick; for WAN interfaces, s

What is a dns resource record, What is a DNS resource record? A resourc...

What is a DNS resource record? A resource record is an entry in a name server's database. There are various types of resource records used, containing name-to-address resolutio

Fiber optic extension, FIBER OPTIC EXTENSION:  The LAN extension using f...

FIBER OPTIC EXTENSION:  The LAN extension using fiber optic is given in the figure below:   Figure The fiber-modem translates digital data into pulses of light the

Overhead - sonet sdh , Overhead SONET overhead  is not added as header...

Overhead SONET overhead  is not added as headers or trailers as we have seen  in other  protocols. Instead SONET  insert overhead at a variety of location in middle  of the  f

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