b isdn and atm n.
Download
Skip this Video
Download Presentation
B-ISDN and ATM ( 보충 )

Loading in 2 Seconds...

play fullscreen
1 / 19

B-ISDN and ATM ( 보충 ) - PowerPoint PPT Presentation


  • 82 Views
  • Uploaded on

B-ISDN and ATM ( 보충 ). 발표자 : 박종민 jmpark@cs.chonbuk.ac.kr. Reference Site. http://myhome.netsgo.com/hl3qvh/ho/ppt/q2931 http://home.yeojoo.ac.kr/~dwhyun/atm. Characteristics of ATM. Uses small, fixed-sized cell Connection oriented Bandwidth allocation on demand

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'B-ISDN and ATM ( 보충 )' - doctor


Download Now An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
b isdn and atm

B-ISDN and ATM (보충)

발표자 : 박종민

jmpark@cs.chonbuk.ac.kr

B-ISDN and ATM (보충)

reference site
Reference Site
  • http://myhome.netsgo.com/hl3qvh/ho/ppt/q2931
  • http://home.yeojoo.ac.kr/~dwhyun/atm

B-ISDN and ATM (보충)

characteristics of atm
Characteristics of ATM
  • Uses small, fixed-sized cell
  • Connection oriented
  • Bandwidth allocation on demand
  • Supports multiple service types
  • Applicable to LAN and WAN

B-ISDN and ATM (보충)

atm signaling
ATM Signaling
  • UNI : User to Network Interface
  • NNI : Network to Network Interface
  • Different protocol in the different domain

B-ISDN and ATM (보충)

virtual path virtual channel
Virtual Path / Virtual Channel
  • Connection Identifier : VPI/VCI
  • Physical Link : Contains multiple VPs
  • Virtual Path : Contains multiple VCs
  • Virtual Channel : Logical path between ATM endpoint

B-ISDN and ATM (보충)

vp and vc switching
VP and VC Switching

B-ISDN and ATM (보충)

atm cell header
ATM Cell Header
  • PTI Payload Type Identifier(3 Bits)
    • - 1 bit : User/Control Data. - 2 bit : Congestion flag.- 3 bit : Last Cell flag
  • CLP Cell Loss Priority Bit
  • HEC Header Error Check(8 Bits)

B-ISDN and ATM (보충)

permanent virtual circuit
Permanent Virtual Circuit
  • Manual updates of VPI/VCI tables in network equipment

B-ISDN and ATM (보충)

switched virtual curcuit
Switched Virtual Curcuit
  • Setup connection using UNI/NNI signaling

B-ISDN and ATM (보충)

atm reference model
ATM Reference Model

SAAL

Signaling ATM Adaptation Layer

B-ISDN and ATM (보충)

atm service criteria
ATM Service Criteria
  • Traffic parameters
    • Peak Cell Rate(PCR), Sustainable Cell Rate(SCR)
    • Maximum Burst Size(MBS), Minimum Cell Rate(MCR)
  • Quality of Service
    • Maximum Cell Transfer Delay(MCTD)
    • Cell Delay Variation Tolerance(CDVT)
    • Cell Loss Ratio(CLR)

B-ISDN and ATM (보충)

atm service categories
ATM Service Categories

B-ISDN and ATM (보충)

traffic management i
Traffic Management - I
  • CAC(Connection Admission Control)
  • Determine whether a connection can be progressed or not

- satisfy the traffic contract of the connection- not disturb traffic contracts of the other connections

B-ISDN and ATM (보충)

traffic management ii
Traffic Management - II
  • UPC(Usage Parameter Control)
  • Protect network resources from malicious as well as unintentional misbehavior- based on traffic contract of the connection- action : cell discard, cell tagging

B-ISDN and ATM (보충)

traffic management iii
Traffic Management - III
  • CLP(Cell Loss Priority) Control
  • In Congestion state- EFCI(Explicit Forward Congestion Control)

- CLP(Cell Loss Priority)

B-ISDN and ATM (보충)

traffic management iv
Traffic Management – IV
  • CAC / Connection Management
  • UPC (Policing)
  • CLP / EFCI control
  • Frame Discard
  • Traffic Shaping
  • ABR Congestion Feedback

B-ISDN and ATM (보충)

atm signaling protocol
ATM Signaling Protocol
  • Point-to-Point ATM Connection(Q.2931)

B-ISDN and ATM (보충)

reserved vpi vci
Reserved VPI/VCI

Q.2971

Q.2931

B-ISDN and ATM (보충)

message structure
Message Structure

B-ISDN and ATM (보충)

ad