Evolution of Data Networks - Electrical & Computer
... • There is no round trip time delay waiting for connection setup; a host can send data as soon as it is ready. • Source host has no way of knowing if the network is capable of delivering a packet or if the destination host is even up. • Since packets are treated independently , it is possible to rou ...
... • There is no round trip time delay waiting for connection setup; a host can send data as soon as it is ready. • Source host has no way of knowing if the network is capable of delivering a packet or if the destination host is even up. • Since packets are treated independently , it is possible to rou ...
OSI Model & TCP/IP
... Model (OSI Reference Model or OSI Model) is an abstract description for layered communications and computer network protocol design. It divides network architecture into seven layers which, from top to bottom, are the Application, Presentation, Session, Transport, Network, Data Link, and Physical La ...
... Model (OSI Reference Model or OSI Model) is an abstract description for layered communications and computer network protocol design. It divides network architecture into seven layers which, from top to bottom, are the Application, Presentation, Session, Transport, Network, Data Link, and Physical La ...
OSI Model & TCP/IP
... Model (OSI Reference Model or OSI Model) is an abstract description for layered communications and computer network protocol design. It divides network architecture into seven layers which, from top to bottom, are the Application, Presentation, Session, Transport, Network, Data Link, and Physical La ...
... Model (OSI Reference Model or OSI Model) is an abstract description for layered communications and computer network protocol design. It divides network architecture into seven layers which, from top to bottom, are the Application, Presentation, Session, Transport, Network, Data Link, and Physical La ...
Implementation Of Voice Over Internet Protocol (VoIP) in Air Traffic
... As shown in Figure 1, SIP [20, 21, 22, 24] is an application layer control protocol that provides advanced signalling and control functionality for large range multimedia communications. SIP is an alternative to H.323, which establishes, modifies, and terminates multimedia sessions, which can be use ...
... As shown in Figure 1, SIP [20, 21, 22, 24] is an application layer control protocol that provides advanced signalling and control functionality for large range multimedia communications. SIP is an alternative to H.323, which establishes, modifies, and terminates multimedia sessions, which can be use ...
Chapter 17
... SONET is designed to carry broadband payloads. Current digital hierarchy data rates, however, are lower than STS-1. To make SONET backwardcompatible with the current hierarchy, its frame design includes a system of virtual tributaries (VTs). A virtual tributary is a partial payload that can be inser ...
... SONET is designed to carry broadband payloads. Current digital hierarchy data rates, however, are lower than STS-1. To make SONET backwardcompatible with the current hierarchy, its frame design includes a system of virtual tributaries (VTs). A virtual tributary is a partial payload that can be inser ...
Part I: Introduction
... multiple access protocol: distributed algorithm that determines how stations share channel, i.e., determine when station can transmit communication about channel sharing must use channel itself! what to look for in multiple access protocols: • synchronous or asynchronous ...
... multiple access protocol: distributed algorithm that determines how stations share channel, i.e., determine when station can transmit communication about channel sharing must use channel itself! what to look for in multiple access protocols: • synchronous or asynchronous ...
lecture 9 - Philadelphia University
... When one computer communicates with another computer, an application running on the source computer forms a request that can be serviced by an application running on the destination computer. The two applications must be written to understand what is being requested and what is being returned. To ...
... When one computer communicates with another computer, an application running on the source computer forms a request that can be serviced by an application running on the destination computer. The two applications must be written to understand what is being requested and what is being returned. To ...
Document
... – Two end-to-end transport protocols have been defined here. The first one, TCP (Transmission Control Protocol), is a reliable connection-oriented protocol that allows a byte stream originating on one machine to be delivered without error on any other machine in the internet. – The second protocol i ...
... – Two end-to-end transport protocols have been defined here. The first one, TCP (Transmission Control Protocol), is a reliable connection-oriented protocol that allows a byte stream originating on one machine to be delivered without error on any other machine in the internet. – The second protocol i ...
notes
... Bits coming in one link go out all other links at same rate All nodes connected to hub can collide with one another No frame buffering No CSMA/CD at hub: host NICs detect collisions ...
... Bits coming in one link go out all other links at same rate All nodes connected to hub can collide with one another No frame buffering No CSMA/CD at hub: host NICs detect collisions ...
Document
... • When the station detects and idle channel, it transmits. • If a collision occurs, the station waits a random amount of time to start all over again. ...
... • When the station detects and idle channel, it transmits. • If a collision occurs, the station waits a random amount of time to start all over again. ...
GLOBAL International Educational Organization Computer Networks
... c. A host uses a default route to identify the Layer 2 address of an end device on the local network. d. A host uses a default route to transfer data to a host outside the local network when no other route to the destination exists. 30. What information is added during encapsulation at OSI Layer 3? ...
... c. A host uses a default route to identify the Layer 2 address of an end device on the local network. d. A host uses a default route to transfer data to a host outside the local network when no other route to the destination exists. 30. What information is added during encapsulation at OSI Layer 3? ...
lecture 4
... start to transfer the data – Sender and receiver need to agree on a set of parameters, e.g., the Maximum Segment Size (MSS) ...
... start to transfer the data – Sender and receiver need to agree on a set of parameters, e.g., the Maximum Segment Size (MSS) ...
CMPT 880: Internet Architectures and Protocols
... • more users or faster transfer (a single user can use entire bw) • Well suited for bursty traffic (typical in data networks) ...
... • more users or faster transfer (a single user can use entire bw) • Well suited for bursty traffic (typical in data networks) ...
Ch08
... • Operates by first sending out a packet with a Time To Live (TTL) of 1. The first hop then sends back an ICMP error message indicating that the packet could not be forwarded because the TTL expired. • The packet is then resent with a TTL of 2, and the second hop returns the TTL expired. This proces ...
... • Operates by first sending out a packet with a Time To Live (TTL) of 1. The first hop then sends back an ICMP error message indicating that the packet could not be forwarded because the TTL expired. • The packet is then resent with a TTL of 2, and the second hop returns the TTL expired. This proces ...
Things we didn`t get to talk about
... – Access computing, storage, & networking resources without worrying about where they are or how they are implemented ...
... – Access computing, storage, & networking resources without worrying about where they are or how they are implemented ...
DS1803 FEATURES PIN ASSIGNMENT Addressable Dual Digital Potentiometer
... Stop data transfer: A change in the state of the data line, from LOW to HIGH, while the clock line is HIGH, defines the STOP condition. Data valid: The state of the data line represents valid data when, after a START condition, the data line is stable for the duration of the HIGH period of the clock ...
... Stop data transfer: A change in the state of the data line, from LOW to HIGH, while the clock line is HIGH, defines the STOP condition. Data valid: The state of the data line represents valid data when, after a START condition, the data line is stable for the duration of the HIGH period of the clock ...
Internetworking
... codes for each of the types • Checksum computed same as for IP packet • Contains first 8 bytes of IP datagram that generated the message so sender can ID • Complete specification of protocol is RFC 792 (Postel) • Another good source is TCP/IP Illustrated, Vol. 1, ...
... codes for each of the types • Checksum computed same as for IP packet • Contains first 8 bytes of IP datagram that generated the message so sender can ID • Complete specification of protocol is RFC 792 (Postel) • Another good source is TCP/IP Illustrated, Vol. 1, ...
Network Security CS 478/CIS 678
... First 8 nibbles: • 0-3: IP Version (V4 or V6) • 4-7: Header length (in 32-bit words) • 8-15: Type of service (relates to quality of service - ignore for this class) ...
... First 8 nibbles: • 0-3: IP Version (V4 or V6) • 4-7: Header length (in 32-bit words) • 8-15: Type of service (relates to quality of service - ignore for this class) ...
unit3
... The idea Behind Sliding Windows • A simple positive acknowledgement protocol wastes a substantial amount of network bandwidth because it must delay sending a new packet until it receives an acknowledgement for the previous packet. ...
... The idea Behind Sliding Windows • A simple positive acknowledgement protocol wastes a substantial amount of network bandwidth because it must delay sending a new packet until it receives an acknowledgement for the previous packet. ...