Brief History of the Internet(1)
... Layered Protocol Stack (2) • Layering provides powerful model for building complex protocol interactions -- modularity, abstraction, information hiding. • BUT the strict layering model is often violated. Thus, layer N’s service may depend upon information at layer N+1. • New functionality often req ...
... Layered Protocol Stack (2) • Layering provides powerful model for building complex protocol interactions -- modularity, abstraction, information hiding. • BUT the strict layering model is often violated. Thus, layer N’s service may depend upon information at layer N+1. • New functionality often req ...
LANdesign
... Network diameter – how many devices must packet pass through? Keep it low. Bandwidth aggregation – combine ports where high bandwidth is needed. Redundant links/devices – in core and distribution layers. Too expensive for access. Start design at the access layer. How many devices, how much bandwidth ...
... Network diameter – how many devices must packet pass through? Keep it low. Bandwidth aggregation – combine ports where high bandwidth is needed. Redundant links/devices – in core and distribution layers. Too expensive for access. Start design at the access layer. How many devices, how much bandwidth ...
bigiron 4000, 8000, 15000
... service providers can meter bandwidth and use Foundry’s sFlow based on RFC 3176 to provide wire-speed traffic accounting for accurate end-user billing. The BigIron 4000, 8000 and 15000 systems provide an array of purpose-built advanced Layer 2 and Layer 3 features such as Private VLANs, SuperSpan, V ...
... service providers can meter bandwidth and use Foundry’s sFlow based on RFC 3176 to provide wire-speed traffic accounting for accurate end-user billing. The BigIron 4000, 8000 and 15000 systems provide an array of purpose-built advanced Layer 2 and Layer 3 features such as Private VLANs, SuperSpan, V ...
SEMESTER 1 Chapter 5
... All of the octet is network/subnetwork bits. All of the octet is host bits. The network address 1 anded with a 1 ...
... All of the octet is network/subnetwork bits. All of the octet is host bits. The network address 1 anded with a 1 ...
Chapter 7 - Dr. Dwayne Whitten
... • Connect two or more networks that use the same or different data link and network protocols • Some work at the application layer ...
... • Connect two or more networks that use the same or different data link and network protocols • Some work at the application layer ...
7. Network Layer
... Network Layer in the Internet (3) Internet is an interconnected collection of many networks that is held together by the IP protocol ...
... Network Layer in the Internet (3) Internet is an interconnected collection of many networks that is held together by the IP protocol ...
Slides - University of Michigan
... *The views presented in this talk are as individuals and do not necessarily reflect any position of T-Mobile. ...
... *The views presented in this talk are as individuals and do not necessarily reflect any position of T-Mobile. ...
Secure Mobile IP with HIP Style Handshaking and
... The multi-homing supported devices can connect to networks with different built-in interfaces. The latest mobile devices may have more than one network interface. Multi-homing support is an appealing feature in functionality and mobility. HIP offers support to Multihoming. Host can use the UPDATE pa ...
... The multi-homing supported devices can connect to networks with different built-in interfaces. The latest mobile devices may have more than one network interface. Multi-homing support is an appealing feature in functionality and mobility. HIP offers support to Multihoming. Host can use the UPDATE pa ...
a security survey of authenticated routing protocol (aran)
... from any possible problematic event in a fix amount of time without human mediation. It means, there must not be any possible way to permanently disable the network by admitting a small number of badly formed packets. Self-stabilizing protocol helps to locate an attacker easily when an attacker who ...
... from any possible problematic event in a fix amount of time without human mediation. It means, there must not be any possible way to permanently disable the network by admitting a small number of badly formed packets. Self-stabilizing protocol helps to locate an attacker easily when an attacker who ...
Lecture 6: Vector - Computer Science Division
... Protocols: HW/SW Interface • Internetworking: allows computers on independent and incompatible networks to communicate reliably and efficiently; – Enabling technologies: SW standards that allow reliable communications without reliable networks – Hierarchy of SW layers, giving each layer responsibil ...
... Protocols: HW/SW Interface • Internetworking: allows computers on independent and incompatible networks to communicate reliably and efficiently; – Enabling technologies: SW standards that allow reliable communications without reliable networks – Hierarchy of SW layers, giving each layer responsibil ...
IEEE Paper Template in A4 (V1) - Academic Science,International
... Different approaches have been proposed by the state of the art spread over the different layers of the TCP / IP; we will summarize the most interesting in the following section. IV. A NETWORK LAYER APPROACHES As WMNs become an increasingly popular replacement technology for last-mile connectivity t ...
... Different approaches have been proposed by the state of the art spread over the different layers of the TCP / IP; we will summarize the most interesting in the following section. IV. A NETWORK LAYER APPROACHES As WMNs become an increasingly popular replacement technology for last-mile connectivity t ...
Firewall - Gadjah Mada University
... • Firewalls are an effective start to securing a network. Not a finish. • Care must be taken to construct an appropriate set of rules that will enforce your policy. ...
... • Firewalls are an effective start to securing a network. Not a finish. • Care must be taken to construct an appropriate set of rules that will enforce your policy. ...
SNMP - ECSE - Rensselaer Polytechnic Institute
... Management = Initialization, Monitoring, and Control SNMP = Only 5 commands Standard MIBs defined for each object ...
... Management = Initialization, Monitoring, and Control SNMP = Only 5 commands Standard MIBs defined for each object ...
09-IP_pkts
... • Higher level protocols must make up for shortcomings • Reliably delivering ordered sequence of bytes TCP ...
... • Higher level protocols must make up for shortcomings • Reliably delivering ordered sequence of bytes TCP ...
lecture13 - Rice University
... – Maintain different sequence numbers for each direction – Single segment can contain new data for one direction, plus acknowledgement for other • But some contain only data & others only acknowledgement T. S. Eugene Ng ...
... – Maintain different sequence numbers for each direction – Single segment can contain new data for one direction, plus acknowledgement for other • But some contain only data & others only acknowledgement T. S. Eugene Ng ...
Hybrid Coatings as Transducers in Optical Biosensors
... at 470 nm. The sensitive element consists of an optical substrate -a glass slide, a glass/plastic lens or an optical fiber- coated with a matrix containing glucose oxidase as sensitive and reactive compound as well as the ruthenium complex. Thus, the system glucose oxidase/ruthenium/matrix can be in ...
... at 470 nm. The sensitive element consists of an optical substrate -a glass slide, a glass/plastic lens or an optical fiber- coated with a matrix containing glucose oxidase as sensitive and reactive compound as well as the ruthenium complex. Thus, the system glucose oxidase/ruthenium/matrix can be in ...
NFX250 Network Services Platform
... The NFX250 improves the overall cost efficiency of the CloudEnabled Branch and managed services with Cloud CPE. CapEx efficiency is enhanced where a single and scalable NFX250 replaces multiple on-premise devices. OpEx efficiency is achieved through automation, which simplifies operations and elimin ...
... The NFX250 improves the overall cost efficiency of the CloudEnabled Branch and managed services with Cloud CPE. CapEx efficiency is enhanced where a single and scalable NFX250 replaces multiple on-premise devices. OpEx efficiency is achieved through automation, which simplifies operations and elimin ...
paper
... Figure 1: Example of TCP and TCP/NC. In the case of TCP, the TCP sender receives duplicate ACKs for packet p1 , which may wrongly indicate congestion. However, for TCP/NC, the TCP sender receives ACKs for packets p1 and p2 ; thus, the TCP sender perceives a longer round-trip time (RTT) but does not ...
... Figure 1: Example of TCP and TCP/NC. In the case of TCP, the TCP sender receives duplicate ACKs for packet p1 , which may wrongly indicate congestion. However, for TCP/NC, the TCP sender receives ACKs for packets p1 and p2 ; thus, the TCP sender perceives a longer round-trip time (RTT) but does not ...
Convergence VoIP
... • H.323 is an ITU Recommendation that defines “packet-based multimedia communications systems.” In other words, H.323 defines a distributed architecture for creating multimedia applications, including VoIP. • H.323 is actually a set of recommendations that define how voice, data and video are transm ...
... • H.323 is an ITU Recommendation that defines “packet-based multimedia communications systems.” In other words, H.323 defines a distributed architecture for creating multimedia applications, including VoIP. • H.323 is actually a set of recommendations that define how voice, data and video are transm ...
CCNA 3 Module 3 Single
... • A routing metric is a value that measures distance to a destination network. • Some routing protocols use only one factor to calculate a metric while others base their metric on two or more factors, including hop count, bandwidth, delay, load, reliability, and maximum transmission unit (MTU) – the ...
... • A routing metric is a value that measures distance to a destination network. • Some routing protocols use only one factor to calculate a metric while others base their metric on two or more factors, including hop count, bandwidth, delay, load, reliability, and maximum transmission unit (MTU) – the ...
Chapter 5 outline
... A’s data link layer sends frame R’s data link layer receives frame R removes IP datagram from Ethernet frame, sees its destined to B R uses ARP to get B’s physical layer address R creates frame containing A-to-B IP datagram sends to B ...
... A’s data link layer sends frame R’s data link layer receives frame R removes IP datagram from Ethernet frame, sees its destined to B R uses ARP to get B’s physical layer address R creates frame containing A-to-B IP datagram sends to B ...
IOSR Journal of Computer Engineering (IOSR-JCE)
... VANET is essentially intended to give security related data, activity administration, and infotainment administrations. Security and movement administration oblige constant data and this passed on data can influence critical choices. Straightforward and viable security instrument is the significant ...
... VANET is essentially intended to give security related data, activity administration, and infotainment administrations. Security and movement administration oblige constant data and this passed on data can influence critical choices. Straightforward and viable security instrument is the significant ...
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).