Lecture #23: Link layer - Computer Science & Engineering
... ATM Layer: Virtual Circuits VC transport: cells carried on VC from source to dest call setup, teardown for each call before data can flow each packet carries VC identifier (not destination ID) every switch on source-dest path maintain “state” for each ...
... ATM Layer: Virtual Circuits VC transport: cells carried on VC from source to dest call setup, teardown for each call before data can flow each packet carries VC identifier (not destination ID) every switch on source-dest path maintain “state” for each ...
HS2413641369
... IPv6, like the most-commonly-used IPv4, is an Internet-layer protocol for packet-switched internetworking and provides end-to-end datagram transmission across multiple IP networks. It is described in Internet standard document RFC 2460, published in December 1998. In addition to offering more addres ...
... IPv6, like the most-commonly-used IPv4, is an Internet-layer protocol for packet-switched internetworking and provides end-to-end datagram transmission across multiple IP networks. It is described in Internet standard document RFC 2460, published in December 1998. In addition to offering more addres ...
Router Architecture
... algorithms to support priorities and guarantees. Support data link layer functionality. ...
... algorithms to support priorities and guarantees. Support data link layer functionality. ...
Chapter 15 Local Area Networks
... • Current standards dictate no closed loops —Only one route is allowed between any two devices • Limits both performance and reliability. ...
... • Current standards dictate no closed loops —Only one route is allowed between any two devices • Limits both performance and reliability. ...
The Internet - Seneca - School of Information & Communications
... administrative bodies, each maintaining their own network. IP allows you to subdivide a network into several subnets. For example, CSE and ...
... administrative bodies, each maintaining their own network. IP allows you to subdivide a network into several subnets. For example, CSE and ...
Document
... » A network with class B address 158.108.0.0 can be divided into 254 subnetworks, with the third byte as the subnetwork id – From 158.108.1.0 to 158.108.254.0 » The subnetwork mask is 255.255.255.0 » Bit-wise AND operation between an IP address and the mask yields the network id and the subnetwork i ...
... » A network with class B address 158.108.0.0 can be divided into 254 subnetworks, with the third byte as the subnetwork id – From 158.108.1.0 to 158.108.254.0 » The subnetwork mask is 255.255.255.0 » Bit-wise AND operation between an IP address and the mask yields the network id and the subnetwork i ...
3rd Edition: Chapter 3
... Internet transport protocol “best effort” service, UDP segments may be: lost delivered out of order to app connectionless: no handshaking between UDP sender, receiver each UDP segment handled independently of others ...
... Internet transport protocol “best effort” service, UDP segments may be: lost delivered out of order to app connectionless: no handshaking between UDP sender, receiver each UDP segment handled independently of others ...
Troubleshooting Scenario Two
... • Connect from another location • If connection is also slow, problem with server • Check server logs for changes • Run Performance Monitor and compare new logs with previously established baseline logs • If connection from other location OK, run TRACERT command from user’s computer to reveal slow h ...
... • Connect from another location • If connection is also slow, problem with server • Check server logs for changes • Run Performance Monitor and compare new logs with previously established baseline logs • If connection from other location OK, run TRACERT command from user’s computer to reveal slow h ...
Chapter 3
... – each datagram has source IP address, destination IP address – each datagram carries 1 transport-layer segment – each segment has source, destination port number (recall: well-known port numbers for specific ...
... – each datagram has source IP address, destination IP address – each datagram carries 1 transport-layer segment – each segment has source, destination port number (recall: well-known port numbers for specific ...
Multi-Mode ADSL Bridge/Router
... can be automatically installed and work with your ADSL connection ...
... can be automatically installed and work with your ADSL connection ...
Chapter 7
... – NSP equipment and links are tied together by network access points (NAPs) • NAPS supply Internet connections to Internet service providers such as EarthLink, AOL, and Comcast ...
... – NSP equipment and links are tied together by network access points (NAPs) • NAPS supply Internet connections to Internet service providers such as EarthLink, AOL, and Comcast ...
Document
... • Global Internet viewed as collection of autonomous systems. • Autonomous system (AS) is a set of routers or networks administered by a single organization • Same routing protocol need not be run within the AS • But, to the outside world, an AS should present a consistent picture of what ASs are re ...
... • Global Internet viewed as collection of autonomous systems. • Autonomous system (AS) is a set of routers or networks administered by a single organization • Same routing protocol need not be run within the AS • But, to the outside world, an AS should present a consistent picture of what ASs are re ...
Optimizing Your Network Design
... • Setup protocol not a routing protocol • Receiver responsible for requesting level of service • Provides a general facility for creating and maintaining information on resource reservations • More suited for private intranets than the Internet or other public networks ...
... • Setup protocol not a routing protocol • Receiver responsible for requesting level of service • Provides a general facility for creating and maintaining information on resource reservations • More suited for private intranets than the Internet or other public networks ...
Chapter 1. Introduction to Data Communications
... • e.g., number of hops, congestion, speed of circuit – Links state info exchanged periodically by each node to keep every node in the network up to date – Provides more reliable, up to date paths to destinations – Used by Open Shortest Path First (OSPF) Copyright 2011 John Wiley & Sons, Inc ...
... • e.g., number of hops, congestion, speed of circuit – Links state info exchanged periodically by each node to keep every node in the network up to date – Provides more reliable, up to date paths to destinations – Used by Open Shortest Path First (OSPF) Copyright 2011 John Wiley & Sons, Inc ...
Chapter 1. Introduction to Data Communications
... • e.g., number of hops, congestion, speed of circuit – Links state info exchanged periodically by each node to keep every node in the network up to date – Provides more reliable, up to date paths to destinations – Used by Open Shortest Path First (OSPF) Copyright 2011 John Wiley & Sons, Inc ...
... • e.g., number of hops, congestion, speed of circuit – Links state info exchanged periodically by each node to keep every node in the network up to date – Provides more reliable, up to date paths to destinations – Used by Open Shortest Path First (OSPF) Copyright 2011 John Wiley & Sons, Inc ...
Chapter5link
... When node has packet to send transmit at full channel data rate R. no a priori coordination among nodes two or more transmitting nodes ➜ “collision”, random access protocol specifies: how to detect collisions how to recover from collisions (e.g., via delayed ...
... When node has packet to send transmit at full channel data rate R. no a priori coordination among nodes two or more transmitting nodes ➜ “collision”, random access protocol specifies: how to detect collisions how to recover from collisions (e.g., via delayed ...
Long Version
... Communication Protocols and Network Topology Disadvantages and Advantages in certain scenarios Application comparison, consumer criteras, business analysts ...
... Communication Protocols and Network Topology Disadvantages and Advantages in certain scenarios Application comparison, consumer criteras, business analysts ...
3rd Edition: Chapter 4 - Computer and Information Science
... RFC 1918 defines a number of IP blocks set aside by American Registry of Internet Numbers (ARIN) for use as private addresses on private networks that are not directly connected to t Internet. ...
... RFC 1918 defines a number of IP blocks set aside by American Registry of Internet Numbers (ARIN) for use as private addresses on private networks that are not directly connected to t Internet. ...
Document
... ARP module connected to it which resolves all IP to hardware (Mac) address conversions ...
... ARP module connected to it which resolves all IP to hardware (Mac) address conversions ...
ch20
... Because of the huge number of systems on the Internet, the transition from IPv4 to IPv6 cannot happen suddenly. It takes a considerable amount of time before every system in the Internet can move from IPv4 to IPv6. The transition must be smooth to prevent any problems between IPv4 and IPv6 systems. ...
... Because of the huge number of systems on the Internet, the transition from IPv4 to IPv6 cannot happen suddenly. It takes a considerable amount of time before every system in the Internet can move from IPv4 to IPv6. The transition must be smooth to prevent any problems between IPv4 and IPv6 systems. ...
CompTIA Network+
... Notice: While every precaution has been taken in the preparation of this material, neither the author nor Cramsession.com assumes any liability in the event of loss or damage directly or indirectly caused by any inaccuracies or incompleteness of the material contained in this document. The informati ...
... Notice: While every precaution has been taken in the preparation of this material, neither the author nor Cramsession.com assumes any liability in the event of loss or damage directly or indirectly caused by any inaccuracies or incompleteness of the material contained in this document. The informati ...
www.cs.kau.se
... • Is vulnerable to denial of service attacks – Security is often a top priority for phone appl. Karlstads Universitet Datavetenskap ...
... • Is vulnerable to denial of service attacks – Security is often a top priority for phone appl. Karlstads Universitet Datavetenskap ...
Internet protocol suite
The Internet protocol suite is the computer networking model and set of communications protocols used on the Internet and similar computer networks. It is commonly known as TCP/IP, because among many protocols, the Transmission Control Protocol (TCP) and the Internet Protocol (IP) is the accepted and most widely used protocol in Internet. Often also called the Internet model, it was originally also known as the DoD model, because the development of the networking model was funded by DARPA, an agency of the United States Department of Defense.TCP/IP provides end-to-end connectivity specifying how data should be packetized, addressed, transmitted, routed and received at the destination. This functionality is organized into four abstraction layers which are used to sort all related protocols according to the scope of networking involved. From lowest to highest, the layers are the link layer, containing communication technologies for a single network segment (link); the internet layer, connecting hosts across independent networks, thus establishing internetworking; the transport layer handling host-to-host communication; and the application layer, which provides process-to-process application data exchange.The TCP/IP model and related protocol models are maintained by the Internet Engineering Task Force (IETF).