SNMP
... ACCESS read-only STATUS current DESCRIPTION "The number of input datagrams for which this entity was not their final IP destination, as a result of which an attempt was made to find a route to forward them to that final destination. In entities which do not act as IP Gateways, this counter will incl ...
... ACCESS read-only STATUS current DESCRIPTION "The number of input datagrams for which this entity was not their final IP destination, as a result of which an attempt was made to find a route to forward them to that final destination. In entities which do not act as IP Gateways, this counter will incl ...
What is a Computer Network?
... • Due to loss of signal strength it is often necessary to use a repeater to boost the signal. • A repeater is a hardware device to link together two cable segments. • The repeater amplifies the signal it receives before passing it on. ...
... • Due to loss of signal strength it is often necessary to use a repeater to boost the signal. • A repeater is a hardware device to link together two cable segments. • The repeater amplifies the signal it receives before passing it on. ...
DBA 102:NOW WHAT
... • “Any broadcast domain that is partitioned & isolated in a computer network at the data link layer (OSI Layer2)” • Partition traffic • Partition security • Does not expand bandwidth ...
... • “Any broadcast domain that is partitioned & isolated in a computer network at the data link layer (OSI Layer2)” • Partition traffic • Partition security • Does not expand bandwidth ...
Introduction
... Suggest a new mobility metric and use it to measure and study characteristics of mobility models and ad hoc networking protocols Study effects of different mobility models on various ad hoc networking protocols, including (but not limited to) ad hoc: unicast routing (e.g., DSR, DSDV, AODV, TOR ...
... Suggest a new mobility metric and use it to measure and study characteristics of mobility models and ad hoc networking protocols Study effects of different mobility models on various ad hoc networking protocols, including (but not limited to) ad hoc: unicast routing (e.g., DSR, DSDV, AODV, TOR ...
Wireless Networks
... • IEEE 802.16d has been designed to support mesh networks in order to extend the coverage of one BS and serve more SSs with limited resources • The standard has defined a framework to effectively schedule the traffic among remote SSs, relay SSs, and the BS • IEEE 802.16d has defined: • The centraliz ...
... • IEEE 802.16d has been designed to support mesh networks in order to extend the coverage of one BS and serve more SSs with limited resources • The standard has defined a framework to effectively schedule the traffic among remote SSs, relay SSs, and the BS • IEEE 802.16d has defined: • The centraliz ...
Countering Dos Attacks with Stateless Multipath Overlays
... client’s connection and bring down the nodes which client tries to connect to. Sweep attack: Degrade the connection by bringing down a portion of the overlay nodes at a time ...
... client’s connection and bring down the nodes which client tries to connect to. Sweep attack: Degrade the connection by bringing down a portion of the overlay nodes at a time ...
Document
... 09/28 Introduction of the course (Larry and Jun) 10/05 Network Introduction (Larry and Jun) 10/12 Link Layer Introduction (Larry and Jun) 10/19 more on Link Layer (Jun) 10/26 Packet switching (Larry and Jun) 11/02 more on Packet Switching (Jun) 11/09 End-to-End system (Larry and Jun) 11/16 more on E ...
... 09/28 Introduction of the course (Larry and Jun) 10/05 Network Introduction (Larry and Jun) 10/12 Link Layer Introduction (Larry and Jun) 10/19 more on Link Layer (Jun) 10/26 Packet switching (Larry and Jun) 11/02 more on Packet Switching (Jun) 11/09 End-to-End system (Larry and Jun) 11/16 more on E ...
9. THE INTERNET: ELECTRONIC COMMERCE, ELECTRONIC …
... • TELNET: log on one computer, work on another • FTP: transfer files from computer to computer • GOPHERS: use menus to locate text material ...
... • TELNET: log on one computer, work on another • FTP: transfer files from computer to computer • GOPHERS: use menus to locate text material ...
The Data Link Layer
... send packets numbered sequentially receiver sends ack with the largest in-order packet received n determines how many packets can be sent before waiting ...
... send packets numbered sequentially receiver sends ack with the largest in-order packet received n determines how many packets can be sent before waiting ...
ppt File - users.cs.umn.edu
... However, TCP/IP is not designed for highperformance, low-latency purpose Queue Pair abstraction provides a way to offload CPU processing, reduce the critical data path, provide memory zero copy The Integration of QP and IP may be able to reduce the latency, improve the throughput between end-end nod ...
... However, TCP/IP is not designed for highperformance, low-latency purpose Queue Pair abstraction provides a way to offload CPU processing, reduce the critical data path, provide memory zero copy The Integration of QP and IP may be able to reduce the latency, improve the throughput between end-end nod ...
MQ3624532158
... different service differentiation schemes for IEEE 802.1 1 MAC layer – using different contention windows, assigning different inter frame spacings (IFSs), and using different maximum frame lengths for different users. However, only the network or MAC layer behavior is considered in [4-6], while the ...
... different service differentiation schemes for IEEE 802.1 1 MAC layer – using different contention windows, assigning different inter frame spacings (IFSs), and using different maximum frame lengths for different users. However, only the network or MAC layer behavior is considered in [4-6], while the ...
lecture11 - Academic Csuohio
... NAT box must maintain mapping info for each connection passing through it. This changes the Internet from a connectionless network to a kind of connection-oriented network NAT violates the most fundamental rule of protocol layering: layer k may not make any assumptions about what layer k+1 has put i ...
... NAT box must maintain mapping info for each connection passing through it. This changes the Internet from a connectionless network to a kind of connection-oriented network NAT violates the most fundamental rule of protocol layering: layer k may not make any assumptions about what layer k+1 has put i ...
SDN Lecture 6
... generating and installing rules in each forwarding device, one can think of creating simplified virtual network topologies that represent the entire network, or a subset of it. For example, the application developer should be able to abstract the network as an atomic big switch, rather than a combin ...
... generating and installing rules in each forwarding device, one can think of creating simplified virtual network topologies that represent the entire network, or a subset of it. For example, the application developer should be able to abstract the network as an atomic big switch, rather than a combin ...
NAME: Computer Science 461 Midterm Exam March 30, 2009
... Because all packets are lost, we only detect loss through a timeout. This causes the sender's window to be reduced to a single MSS (1000 bytes / RTT), at which time it enters "slow-start restart". Namely, it will perform slowstart until half of its prior cwnd (16,000 bytes/second), then do additive- ...
... Because all packets are lost, we only detect loss through a timeout. This causes the sender's window to be reduced to a single MSS (1000 bytes / RTT), at which time it enters "slow-start restart". Namely, it will perform slowstart until half of its prior cwnd (16,000 bytes/second), then do additive- ...
NAME: Computer Science 461 Midterm Exam March 30, 2009
... Because all packets are lost, we only detect loss through a timeout. This causes the sender's window to be reduced to a single MSS (1000 bytes / RTT), at which time it enters "slow-start restart". Namely, it will perform slowstart until half of its prior cwnd (16,000 bytes/second), then do additive- ...
... Because all packets are lost, we only detect loss through a timeout. This causes the sender's window to be reduced to a single MSS (1000 bytes / RTT), at which time it enters "slow-start restart". Namely, it will perform slowstart until half of its prior cwnd (16,000 bytes/second), then do additive- ...
Games and the Impossibility of Realizable Ideal Functionality
... Routing Vulnerabilities Source routing attack ...
... Routing Vulnerabilities Source routing attack ...
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 ...
pptx - UCL Computer Science
... • IP multicast: Many hosts receive all traffic to a number of hosts (a multicast group) [Slide credit: CMU Network Group] ...
... • IP multicast: Many hosts receive all traffic to a number of hosts (a multicast group) [Slide credit: CMU Network Group] ...
FireWxNet: A Multi-Tiered Portable Wireless for Monitoring Weather
... reach base stations even in the varying presence of interference and asynchronous links. Rather than implement a protocol with guaranteed delivery, a best-effort converge-cast protocol was developed . In this protocol, messages are sent multiple times for reliability. Therefore every packet need not ...
... reach base stations even in the varying presence of interference and asynchronous links. Rather than implement a protocol with guaranteed delivery, a best-effort converge-cast protocol was developed . In this protocol, messages are sent multiple times for reliability. Therefore every packet need not ...
Graph Theory – Some Definitions A mathematical representation of
... The neighborhood of a given node n is the set of its neighbors. The connectivity of n, denoted by kn, is the size of its neighborhood. The average number of neighbors indicates the average connectivity of a node in the network. A normalized version of this parameter is the network density. The densi ...
... The neighborhood of a given node n is the set of its neighbors. The connectivity of n, denoted by kn, is the size of its neighborhood. The average number of neighbors indicates the average connectivity of a node in the network. A normalized version of this parameter is the network density. The densi ...
slides - network systems lab @ sfu
... 1 cs-gw (128.119.240.254) 1 ms 1 ms 2 ms 2 border1-rt-fa5-1-0.gw.umass.edu (128.119.3.145) 1 ms 1 ms 2 ms 3 cht-vbns.gw.umass.edu (128.119.3.130) 6 ms 5 ms 5 ms 4 jn1-at1-0-0-19.wor.vbns.net (204.147.132.129) 16 ms 11 ms 13 ms 5 jn1-so7-0-0-0.wae.vbns.net (204.147.136.136) 21 ms 18 ms 18 ms 6 abilen ...
... 1 cs-gw (128.119.240.254) 1 ms 1 ms 2 ms 2 border1-rt-fa5-1-0.gw.umass.edu (128.119.3.145) 1 ms 1 ms 2 ms 3 cht-vbns.gw.umass.edu (128.119.3.130) 6 ms 5 ms 5 ms 4 jn1-at1-0-0-19.wor.vbns.net (204.147.132.129) 16 ms 11 ms 13 ms 5 jn1-so7-0-0-0.wae.vbns.net (204.147.136.136) 21 ms 18 ms 18 ms 6 abilen ...
Maximum query latency Network traffic per query
... a packet contains router field and journey field, initializes to its IP address and one • Other nodes will set its next-insider to router contained in the packet • If journey value equals to the radius of certain ri : 1) modifies router field to its IP 2) marks itself the boundary node of Ri ...
... a packet contains router field and journey field, initializes to its IP address and one • Other nodes will set its next-insider to router contained in the packet • If journey value equals to the radius of certain ri : 1) modifies router field to its IP 2) marks itself the boundary node of Ri ...
Introduction - Eastern Illinois University
... Webserver (Host) Operating System TCP/IP IP Address=139.67.14.54 Host name =eiu.edu ...
... Webserver (Host) Operating System TCP/IP IP Address=139.67.14.54 Host name =eiu.edu ...
Security in network
... tap a wire and read radiated signals without making physical contact with cable. • A device called packet sniffer can retrieve all packets on the LAN ...
... tap a wire and read radiated signals without making physical contact with cable. • A device called packet sniffer can retrieve all packets on the LAN ...
Recursive InterNetwork Architecture (RINA)
The Recursive InterNetwork Architecture (RINA) is a computer network architecture that unifies distributed computing and telecommunications. RINA's fundamental principle is that computer networking is just Inter-Process Communication or IPC. RINA reconstructs the overall structure of the Internet, forming a model that comprises a single repeating layer, the DIF (Distributed IPC Facility), which is the minimal set of components required to allow distributed IPC between application processes. RINA inherently supports mobility, multi-homing and Quality of Service without the need for extra mechanisms, provides a secure and programmable environment, motivates for a more competitive marketplace, and allows for a seamless adoption.