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Chapter 3
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 ...
IPv4 Addressing - User Web Areas at the University of York
IPv4 Addressing - User Web Areas at the University of York

... share a class A or B address. (You could split class C addresses as well, but that’s not as useful.) Secondly: supernetting, which is in some senses the opposite: supernetting allows several consecutive class C networks to be joined together to make a larger network space. For example, anyone who wa ...
protocols
protocols

... Time to live Source/Destination IP addresses ...
here - Pages
here - Pages

... Switched Networks ...
Welcome to ENTC 415
Welcome to ENTC 415

... Routing and Wavelength Assignment (RWA) • RWA algorithms based on traffic assumptions: • Static Traffic – Set of connections for source and destination pairs are given • Dynamic Traffic – Connection requests arrive to and depart from network one by one in a random manner. – Performance metrics used ...
Using Spamhaus BGPf in a production environment
Using Spamhaus BGPf in a production environment

... The Spamhaus Botnet Command and Control (C&C) list is an advisory “drop all traffic” list consisting only of single IPv4 addresses. The servers on these listed IP addresses host botnet C&C nodes. C&C nodes are servers that control the individual malware-infected computers (bots) that together form a ...
PDF
PDF

... Cisco Services Available with Cisco IOS Software and the IP Base image, the Cisco Catalyst Blade Switch 3120 products offer a complete set of intelligent services to deliver security, quality of service (QoS), and high availability in the server farm access environment. The IP Base feature set inclu ...
mm_streaming - College of Engineering | Oregon State University
mm_streaming - College of Engineering | Oregon State University

... struct sockaddr_in my_addr; // my address information struct sockaddr_in their_addr; // connector's address information ...
TN1111 – LatticeXP Tri-Speed Ethernet MAC Demo Technical Note
TN1111 – LatticeXP Tri-Speed Ethernet MAC Demo Technical Note

... (both physical and broadcast), filter these packets and pass them to higher protocol software. It also shows the TSMAC receiving IP packets from higher layer software and transmitting them over the Ethernet. TSMAC features demonstrated include: • Real-world 802.3 Ethernet frames received and transmi ...
ppt - Carnegie Mellon School of Computer Science
ppt - Carnegie Mellon School of Computer Science

... Alternatives • Stateful packet filters  Keep the connection states  Easier to specify rules  Problems?  State explosion  State for UDP/ICMP? ...
Week_Nine_Net_Design_ppt
Week_Nine_Net_Design_ppt

... - in the above case 369. This format is typically only used where a service is available on a non-standard port number, for instance, many web configuration systems, such as Samba swat, will use a non-standard port to avoid clashing with the standard web (HTTP) port number of 80. A port number is 16 ...
ITP630_U4_Karloff_Boris_IT_ APA format
ITP630_U4_Karloff_Boris_IT_ APA format

... be necessary to arrive at a “best” solution that addresses all of the needs of the given scenario. 2) Given the following scenario, chose the best routing protocol that meets the needs identified in the scenario. a) “…You have been tasked with reconfiguring the network for your company, which has gr ...
UTMOST
UTMOST

... should be the similar for all the hosts in the subnet. • By sharing the information, the redundant probing traffic can be eliminated. • SPAND is cooperative but passive watch. • The Multipoint measurement example mentioned is cooperative but active probe. ...
Technology that thinks ahead
Technology that thinks ahead

... predictive analytics suite of Medio, which was acquired by HERE in 2014, to help operators generate incremental revenue. This capability will enable Nokia Networks to help operators to perform end-user analytics by combining network insight with location intelligence and other types of consumer data ...
Spanning Tree Protocol Inter-VLAN Routing
Spanning Tree Protocol Inter-VLAN Routing

... BPDU guard shuts down PortFast-configured interfaces that receive BPDUs, rather than putting them into the STP blocking state (the default behavior). In a valid configuration, PortFast-configured interfaces should not receive BPDUs. Reception of a BPDU by a PortFast-configured interface signals an i ...
ATM
ATM

... – Used to emulate broadcast feature of a legacy LAN – Packet sent to the BUS are sent to all LECs in the ELAN – It is used before a direct connection is established between two LECs ...
Limitations of Layer2 switching
Limitations of Layer2 switching

... Consisted of Tag Switching plus other input from Ipsilon, IBM (ARIS) and others. Worked in the Internet Engineering Task Force (IETF) IETF creates the Request For Comments (RFCs) that are quasi-standards ...
AirRouter User Guide
AirRouter User Guide

... time is retrieved from the Internet using NTP (Network Time Protocol). NTP Client is enabled by default on the Services tab. The AirRouter doesn’t have an internal clock and the date and time may be inaccurate if NTP Client is disabled or the AirRouter isn’t connected to the Internet. Channel/Freque ...
paced invocations - Google Project Hosting
paced invocations - Google Project Hosting

... SCTP combines best features of TCP and UDP and adds several new features SCTP can be used to improve network fault tolerance and improve QoS Under normal network conditions, SCTP compares well with TCP and UDP – In addition, it can utilize redundant links to provide higher effective throughput ...
Cisco SPA232D Multi-Line DECT ATA Product Overview
Cisco SPA232D Multi-Line DECT ATA Product Overview

... port to connect to the PSTN. The SPA232D FXS and FXO lines can be independently configured through software by the service provider or the end user. Users can take full advantage of their broadband phone service by enabling intelligent “hop-on, hop-off” applications to route local calls from mobile ...
pptx - Cambridge Computer Laboratory
pptx - Cambridge Computer Laboratory

... • LS: each node learns the complete network map; each node computes shortest paths independently and in parallel • DV: no node has the complete picture; nodes cooperate to compute shortest paths in a distributed manner ...
VLAN Security - Clarkson University
VLAN Security - Clarkson University

... Switch Ports (managed switches) ● Trunk port ● Port on switch configured to carry traffic for multiple VLANs to other connected switches ● Allows VLANs to expand beyond a single switch ● ie. between buildings ● Access port ● Port on switch configured to provide access to a single VLAN ● Tags all tra ...
Liaison Statement to IETF PWE3 WG on MS-PW over T-MPLS
Liaison Statement to IETF PWE3 WG on MS-PW over T-MPLS

... According to [MS-PW-ARCH], a MPLS MS-PW is a MPLS PW that spans multiple PSN tunnels and is configured as a set of two or more contiguous MPLS PW segments that behave and function as a single point-to-point MPLS PW. In G.805 terms, a MPLS MS-PW is a PW trail containing a serial-compound MPLS PW link ...
IOSR Journal of Computer Engineering (IOSR-JCE)
IOSR Journal of Computer Engineering (IOSR-JCE)

... destination node. It happens only when source node and destination node are within communication. By this it states MANET networks are self organizing and configuring which changes accordingly. Node acts in both way as host and also route which route data to another node of network. Battery power of ...
Computer Networks Laboratory
Computer Networks Laboratory

... By themselves, computers are powerful tools. When they are connected in a network, they become even more powerful because the functions and tools that each computer provides can be shared with other computers. Network is a small group of computers that share information, or they can be very complex, ...
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Deep packet inspection

Deep Packet Inspection (DPI, also called complete packet inspection and Information eXtraction or IX) is a form of computer network packet filtering that examines the data part (and possibly also the header) of a packet as it passes an inspection point, searching for protocol non-compliance, viruses, spam, intrusions, or defined criteria to decide whether the packet may pass or if it needs to be routed to a different destination, or, for the purpose of collecting statistical information. There are multiple headers for IP packets; network equipment only needs to use the first of these (the IP header) for normal operation, but use of the second header (TCP, UDP etc.) is normally considered to be shallow packet inspection (usually called Stateful Packet Inspection) despite this definition.There are multiple ways to acquire packets for deep packet inspection. Using port mirroring (sometimes called Span Port) is a very common way, as well as an optical splitter.Deep Packet Inspection (and filtering) enables advanced network management, user service, and security functions as well as internet data mining, eavesdropping, and internet censorship. Although DPI technology has been used for Internet management for many years, some advocates of net neutrality fear that the technology may be used anticompetitively or to reduce the openness of the Internet.DPI is used in a wide range of applications, at the so-called ""enterprise"" level (corporations and larger institutions), in telecommunications service providers, and in governments.
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