Analysis of TCP performance over mobile ad hoc networks
... Routing (DSR) protocol and BSD's ARP protocol (used to resolve IP addresses to MAC addresses). The choice of DSR as the routing protocol was based on the availability of the ns extensions at the time when this study was initiated. Our goal was only to observe TCP's performance in the presence of mo ...
... Routing (DSR) protocol and BSD's ARP protocol (used to resolve IP addresses to MAC addresses). The choice of DSR as the routing protocol was based on the availability of the ns extensions at the time when this study was initiated. Our goal was only to observe TCP's performance in the presence of mo ...
Introduction to Operating Systems
... – Translates the addresses of internal hosts so as to hide them from the outside world – Also known as IP masquerading ...
... – Translates the addresses of internal hosts so as to hide them from the outside world – Also known as IP masquerading ...
Chapter 7: Computer Networks, the Internet, and the World Wide Web
... Determine how to arbitrate ownership of a shared line when multiple nodes want to send at the same time ...
... Determine how to arbitrate ownership of a shared line when multiple nodes want to send at the same time ...
access control list
... You're the systems administrator at Testing, and you create the following access control lists. access-list101 deny tcp 5.1.1.10 0.0.0.0 5.1.3.0 0.0.0.255 eq telnet access-list101 permit any any You then enter the command "ip access-group 101 in" to apply access control list 101 to router TK1s e0 in ...
... You're the systems administrator at Testing, and you create the following access control lists. access-list101 deny tcp 5.1.1.10 0.0.0.0 5.1.3.0 0.0.0.255 eq telnet access-list101 permit any any You then enter the command "ip access-group 101 in" to apply access control list 101 to router TK1s e0 in ...
VoIP Security and Threat Taxonomy (PDF)
... Simple Network Management Protocol. A management protocol used to retrieve or modify select information from a ‘managed’ device. [IETF-SNMP] Signaling System Number 7. SS7 is the signaling protocol suite used in Public Switched Telephone Network (PSTN) to exchange signaling information between netwo ...
... Simple Network Management Protocol. A management protocol used to retrieve or modify select information from a ‘managed’ device. [IETF-SNMP] Signaling System Number 7. SS7 is the signaling protocol suite used in Public Switched Telephone Network (PSTN) to exchange signaling information between netwo ...
IC3: Network Security _______________ Firewalls
... A Firewall is always the single path of communication between protected and unprotected networks ...
... A Firewall is always the single path of communication between protected and unprotected networks ...
Chapter 4: Network Layer
... 16-bit identifier flgs offset upper time to Internet layer live checksum ...
... 16-bit identifier flgs offset upper time to Internet layer live checksum ...
Risks Associated with Transmission and Hardware
... Blocks traffic into LAN Examines header Blocks traffic attempting to exit LAN Stops spread of worms Firewall default configuration Block most common security threats Preconfigured to accept, deny certain traffic types Network administrators often customize settings Common packet-filtering fi ...
... Blocks traffic into LAN Examines header Blocks traffic attempting to exit LAN Stops spread of worms Firewall default configuration Block most common security threats Preconfigured to accept, deny certain traffic types Network administrators often customize settings Common packet-filtering fi ...
Network Design
... occurs. Packets can leave the link local network and be retransmitted on other networks. Routers perform this function on a network by having at least two network interfaces, one on each of the networks to be interconnected. Nodes on the Internet are reached by their globally unique IP address. Anot ...
... occurs. Packets can leave the link local network and be retransmitted on other networks. Routers perform this function on a network by having at least two network interfaces, one on each of the networks to be interconnected. Nodes on the Internet are reached by their globally unique IP address. Anot ...
Appendix B - Roaming
... Resolution Protocol) to the network with the destination IP. Assuming both parties are on the same network the other the machine with that IP will reply back to the sender with its MAC address. In the process of this packet toing and froing the switch in the middle learns which ports to send data to ...
... Resolution Protocol) to the network with the destination IP. Assuming both parties are on the same network the other the machine with that IP will reply back to the sender with its MAC address. In the process of this packet toing and froing the switch in the middle learns which ports to send data to ...
Experimental Review of IPSec Features to Enhance IP Security By
... But, inside a LAN, the threat of traffic analysis and denial-of-service attacks is minimal. To reduce processing overhead and packet length without sacrificing security, the original header can be used on packets exchanged between hosts. In transport mode, ESP hides only the private packet’s payloa ...
... But, inside a LAN, the threat of traffic analysis and denial-of-service attacks is minimal. To reduce processing overhead and packet length without sacrificing security, the original header can be used on packets exchanged between hosts. In transport mode, ESP hides only the private packet’s payloa ...
GENI Networking Demos - Καλώς Ήλθατε στο
... Distance Vector Routing Description Each router reports a list of (directly or indirectly) reachable destinations and the routing metric (“distance vector”) to its neighbors Each router updates its internal tables according to the information received. If a shorter distance to a destination is ...
... Distance Vector Routing Description Each router reports a list of (directly or indirectly) reachable destinations and the routing metric (“distance vector”) to its neighbors Each router updates its internal tables according to the information received. If a shorter distance to a destination is ...
lecture11
... NAT violates the architectural model of IP, which states that every IP address uniquely identifies a single machine worldwide 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 NA ...
... NAT violates the architectural model of IP, which states that every IP address uniquely identifies a single machine worldwide 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 NA ...
Christopher Wilder - P2P Over MANET
... • A mobile ad hoc network with a peer to peer overlay network • A MANET will operate in the first four layers of the OSI model, while P2P will run in the fourth through seventh layer. This is only a general case • Next generation of client based networks • Can be implemented in more than one way con ...
... • A mobile ad hoc network with a peer to peer overlay network • A MANET will operate in the first four layers of the OSI model, while P2P will run in the fourth through seventh layer. This is only a general case • Next generation of client based networks • Can be implemented in more than one way con ...
Experiences with Fine-grained Distributed Supercomputing on a 10G Testbed
... tive MX layer, which is directly supported by OpenMPI. For grid-based runs, we cannot use MX but run the same application with OpenMPI in TCP/IP mode, which uses the kernel’s sockets interface to the same Myri-10G device. OpenMPI is both efficient and versatile in that a specific network can be sele ...
... tive MX layer, which is directly supported by OpenMPI. For grid-based runs, we cannot use MX but run the same application with OpenMPI in TCP/IP mode, which uses the kernel’s sockets interface to the same Myri-10G device. OpenMPI is both efficient and versatile in that a specific network can be sele ...
Y-Comm: A new architecture for heterogeneous networking
... • Node_ID allows the networking infrastructure to know that network interfaces are co-located • Optimize network resources – In the core network we could use the Node_ID as a general guide to where the device is located. Use the Location_ID to choose which particular local network to use to forward ...
... • Node_ID allows the networking infrastructure to know that network interfaces are co-located • Optimize network resources – In the core network we could use the Node_ID as a general guide to where the device is located. Use the Location_ID to choose which particular local network to use to forward ...
On the Reliability and Additional Overhead of Reliable On
... multicast meshes that have much richer connectivity than trees [4]. CAMP can have multiple cores, which may or may not be part of the multicast group. The idea of having multiple cores is to limit the amount of control information exchanged in the network CAMP classifies the nodes in the network int ...
... multicast meshes that have much richer connectivity than trees [4]. CAMP can have multiple cores, which may or may not be part of the multicast group. The idea of having multiple cores is to limit the amount of control information exchanged in the network CAMP classifies the nodes in the network int ...
Y-Comm - Middlesex University
... • Node_ID allows the networking infrastructure to know that network interfaces are co-located • Optimize network resources – In the core network we could use the Node_ID as a general guide to where the device is located. Use the Location_ID to choose which particular local network to use to forward ...
... • Node_ID allows the networking infrastructure to know that network interfaces are co-located • Optimize network resources – In the core network we could use the Node_ID as a general guide to where the device is located. Use the Location_ID to choose which particular local network to use to forward ...
Transport of Signaling over IP
... What’s wrong with TCP for transport of signaling? • HOL blocking: Two network nodes signal at the same time about many independent calls. TCP ties them together – one lost message concerning a single call causes sigaling of other calls to halt until retransmission recovers the lost message. • TCP i ...
... What’s wrong with TCP for transport of signaling? • HOL blocking: Two network nodes signal at the same time about many independent calls. TCP ties them together – one lost message concerning a single call causes sigaling of other calls to halt until retransmission recovers the lost message. • TCP i ...
Part I: Introduction - Rensselaer Polytechnic Institute
... • End-to-end data reliability & flow control (done by TCP or application layer protocols) • Sequencing of packets (like TCP) • Error detection in payload (TCP, UDP or other transport layers) • Error reporting (ICMP) ...
... • End-to-end data reliability & flow control (done by TCP or application layer protocols) • Sequencing of packets (like TCP) • Error detection in payload (TCP, UDP or other transport layers) • Error reporting (ICMP) ...
Computer networks CEN-330
... To reduce complexity of communication task by splitting it into several layered small tasks Functionality of the layers can be changed as long as the service provided to the layer above stays unchanged ...
... To reduce complexity of communication task by splitting it into several layered small tasks Functionality of the layers can be changed as long as the service provided to the layer above stays unchanged ...
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).