cn2 – basic network tools and analysis
... For example, when an HTML file is sent to you from a Web server, the Transmission Control Protocol (TCP) program layer in that server divides the file into one or more packets, numbers the packets, and then forwards them individually to the IP program layer. Although each packet has the same destina ...
... For example, when an HTML file is sent to you from a Web server, the Transmission Control Protocol (TCP) program layer in that server divides the file into one or more packets, numbers the packets, and then forwards them individually to the IP program layer. Although each packet has the same destina ...
CCNA2 3.1-08 TCPIP Suite Error and Control Messages
... Internet Protocol (IP) • IP is an unreliable method for delivery of network data. • It is known as a best effort delivery mechanism. • It has no built-in processes to ensure that data is delivered. • Nothing in its basic design allows IP to notify the sender that a ...
... Internet Protocol (IP) • IP is an unreliable method for delivery of network data. • It is known as a best effort delivery mechanism. • It has no built-in processes to ensure that data is delivered. • Nothing in its basic design allows IP to notify the sender that a ...
TCP for Ad-hoc Networks
... Induced traffic: Link level transmission affect neighbors of sender and receiver. ...
... Induced traffic: Link level transmission affect neighbors of sender and receiver. ...
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... • Each router runs Dijkstra’s algorithm – To compute the shortest paths – … and construct the forwarding table ...
... • Each router runs Dijkstra’s algorithm – To compute the shortest paths – … and construct the forwarding table ...
ppt - inst.eecs.berkeley.edu
... Upon receiving message (Y, d, Z) from Z, check Y’s id If new id smaller, start viewing that switch as root Switches compute their distance from the root Add 1 to the distance received from a neighbor Identify interfaces not on shortest path to the root … and exclude them from the spanning ...
... Upon receiving message (Y, d, Z) from Z, check Y’s id If new id smaller, start viewing that switch as root Switches compute their distance from the root Add 1 to the distance received from a neighbor Identify interfaces not on shortest path to the root … and exclude them from the spanning ...
show ip protocols - Febby Dian Anggraini
... IP Classless • A router by default assumes that all subnets of a directly connected network should be present in the routing table. • If a packet is received with an unknown destination address within an unknown subnet of a directly attached network, the router assumes that the subnet does not exis ...
... IP Classless • A router by default assumes that all subnets of a directly connected network should be present in the routing table. • If a packet is received with an unknown destination address within an unknown subnet of a directly attached network, the router assumes that the subnet does not exis ...
Client-Server Architectures and the Internet
... differ. Encryption is also performed in this layer, if required. At this level reliability and adaptation are performed, such as detection of failures and automatic recovery. This is the lowest level at which messages (rather than packets) are handled. Messages are addressed to communication ports a ...
... differ. Encryption is also performed in this layer, if required. At this level reliability and adaptation are performed, such as detection of failures and automatic recovery. This is the lowest level at which messages (rather than packets) are handled. Messages are addressed to communication ports a ...
Three Challenges in Reliable Data Transport over Heterogeneous
... reply to ARP request that seeks the MH’s link-layer address • when MH leaves/returns its home net, its HA uses gratuitous ARP to update the ARP caches of nodes on the home net, causing such nodes to associate the link-layer address of the HA with the MH’s home IP address ...
... reply to ARP request that seeks the MH’s link-layer address • when MH leaves/returns its home net, its HA uses gratuitous ARP to update the ARP caches of nodes on the home net, causing such nodes to associate the link-layer address of the HA with the MH’s home IP address ...
... a single protocol can't do everything higher-level protocols build elaborate operations out of simpler ones each layer uses only the services of the one directly below and provides the services expected by the layer above all communication is between peer levels: layer N destination receives exactly ...
Gigabit Smart Managed Switches
... D-Link’s DGS-1210 Series Gigabit Smart Managed Switches integrates advanced management as well as security functions that provide performance and scalability. Management options for the switch include SNMP, Web Management, D-Link Network Assistant Utility, and compact command lines. The DGS-1210 Ser ...
... D-Link’s DGS-1210 Series Gigabit Smart Managed Switches integrates advanced management as well as security functions that provide performance and scalability. Management options for the switch include SNMP, Web Management, D-Link Network Assistant Utility, and compact command lines. The DGS-1210 Ser ...
Pooling of IP addresses
... – Modifying the IP header by changing the IP address requires that NAT boxes recalculate the IP header checksum – Modifying port number requires that NAT boxes recalculate TCP checksum • Fragmentation – Care must be taken that a datagram that is fragmented before it reaches the NAT device, is not as ...
... – Modifying the IP header by changing the IP address requires that NAT boxes recalculate the IP header checksum – Modifying port number requires that NAT boxes recalculate TCP checksum • Fragmentation – Care must be taken that a datagram that is fragmented before it reaches the NAT device, is not as ...
Deschenes
... • Brute-force approaches to Internet mapping produce excessive loads and can take extraordinary amounts of time • Synthetic Internet maps of high quality are useful to researchers, especially with respect to the execution of realistic simulations ...
... • Brute-force approaches to Internet mapping produce excessive loads and can take extraordinary amounts of time • Synthetic Internet maps of high quality are useful to researchers, especially with respect to the execution of realistic simulations ...
CV - Electrical and Computer Engineering
... wireless networks operating in the unlicensed 60 GHz “millimeter (mm) wave” band. Design, analysis and experimentation for cooperative pico-cellular communication strategies for increased capacity in next generation cellular/WiMAX networks. Responsibilities include assisting with research proposals ...
... wireless networks operating in the unlicensed 60 GHz “millimeter (mm) wave” band. Design, analysis and experimentation for cooperative pico-cellular communication strategies for increased capacity in next generation cellular/WiMAX networks. Responsibilities include assisting with research proposals ...
AUROREAN™ POLICY SERVER 7000 AND 3000 SERIES Data Sheet
... Ensures high availability for mobile users, telecommuters and site-to-site connections Initiates fail-over to an alternative server in the event of hardware failure or service unavailability ...
... Ensures high availability for mobile users, telecommuters and site-to-site connections Initiates fail-over to an alternative server in the event of hardware failure or service unavailability ...
Love - Computing Science - Thompson Rivers University
... Reliable data delivery between two end applications or protocol entities It includes error recovery and packet loss recovery routines. How to send TCP packets to the destination through the jungle of computers on the Internet? There are other similar protocols, e.g., UDP, in the same level, which is ...
... Reliable data delivery between two end applications or protocol entities It includes error recovery and packet loss recovery routines. How to send TCP packets to the destination through the jungle of computers on the Internet? There are other similar protocols, e.g., UDP, in the same level, which is ...
2.1 Chapter 2 Network Models
... protocol suite was defined as having four layers: host-tonetwork, internet, transport, and application. However, when TCP/IP is compared to OSI, we can say that the TCP/IP protocol suite is made of five layers: physical, data link, network, transport, and application. Topics discussed in this sectio ...
... protocol suite was defined as having four layers: host-tonetwork, internet, transport, and application. However, when TCP/IP is compared to OSI, we can say that the TCP/IP protocol suite is made of five layers: physical, data link, network, transport, and application. Topics discussed in this sectio ...
Lecture 1: Course Introduction and Overview
... interconnection with overhead to send & receive packet (e.g., TCP), adjustable window – Choke packets: aka “rate-based”; Each packet received by busy switch in warning state sent back to the source via choke packet. Source reduces traffic to that destination by a fixed % (e.g., ATM) ...
... interconnection with overhead to send & receive packet (e.g., TCP), adjustable window – Choke packets: aka “rate-based”; Each packet received by busy switch in warning state sent back to the source via choke packet. Source reduces traffic to that destination by a fixed % (e.g., ATM) ...
4th Edition: Chapter 1
... modularization eases maintenance, updating of system change of implementation of layer’s service transparent to rest of system change in one layer doesn’t affect rest of system (is this true?!) Can layering be considered harmful? ...
... modularization eases maintenance, updating of system change of implementation of layer’s service transparent to rest of system change in one layer doesn’t affect rest of system (is this true?!) Can layering be considered harmful? ...
SpaceWire test and verification
... terminal nodes may be different (it is not possible to predict it), and because through adaptive group routing packet that send to one terminal node from group could be received by other terminal node from this group. • Including special information in packet payload (for generation unique packet id ...
... terminal nodes may be different (it is not possible to predict it), and because through adaptive group routing packet that send to one terminal node from group could be received by other terminal node from this group. • Including special information in packet payload (for generation unique packet id ...
Autonomic Response to Distributed Denial of Service Attacks*
... IDIP, and corresponding manual procedures used by network administrators is that moving attack mitigation actions upstream increases their effectiveness and minimizes the collateral impact on other traffic. Autonomous responses by individual components along the attack path are temporary, e.g., for two ...
... IDIP, and corresponding manual procedures used by network administrators is that moving attack mitigation actions upstream increases their effectiveness and minimizes the collateral impact on other traffic. Autonomous responses by individual components along the attack path are temporary, e.g., for two ...
Document
... Replaces the aging Data Encryption Standard (DES) in NIST. Solves the problem of stronger encryption needed by 802.11. AES requires a coprocessor (additional hardware). Companies need to replace existing access points and client NICs. 802.11i standard will likely include AES. Network Architecture an ...
... Replaces the aging Data Encryption Standard (DES) in NIST. Solves the problem of stronger encryption needed by 802.11. AES requires a coprocessor (additional hardware). Companies need to replace existing access points and client NICs. 802.11i standard will likely include AES. Network Architecture an ...
Week_Twelve_ppt - Franklin University Computing Sciences
... enables vendors to introduce new features • The unified communications network model enables distributed call routing, control, and application functions based on industry standards • Enterprises can mix and match equipment from multiple vendors and geographically deploy these systems wherever they ...
... enables vendors to introduce new features • The unified communications network model enables distributed call routing, control, and application functions based on industry standards • Enterprises can mix and match equipment from multiple vendors and geographically deploy these systems wherever they ...
sigcomm`11 - Cornell Computer Science
... Anteater’s primary goal is to detect and diagnose a broad, general class of network problems. The system detects problems by analyzing the contents of forwarding tables contained in routers, switches, firewalls, and other networking equipment (Figure 1). Operators use Anteater to check whether the n ...
... Anteater’s primary goal is to detect and diagnose a broad, general class of network problems. The system detects problems by analyzing the contents of forwarding tables contained in routers, switches, firewalls, and other networking equipment (Figure 1). Operators use Anteater to check whether the n ...
Wake-on-LAN
Wake-on-LAN (WoL) is an Ethernet or Token ring computer networking standard that allows a computer to be turned on or awakened by a network message.The message is usually sent by a program executed on another computer on the same local area network. It is also possible to initiate the message from another network by using subnet directed broadcasts or a WOL gateway service. Equivalent terms include wake on WAN, remote wake-up, power on by LAN, power up by LAN, resume by LAN, resume on LAN and wake up on LAN. In case the computer being awakened is communicating via Wi-Fi, a supplementary standard called Wake on Wireless LAN (WoWLAN) must be employed.The WOL and WoWLAN standards are often supplemented by vendors to provide protocol-transparent on-demand services, for example in the Apple Bonjour wake-on-demand (Sleep Proxy) feature.