Introduction & Course overview
... Layered Communication A protocol also defines the procedures which determine how the PDU will be processed at the transmit and receive nodes. The procedures specify the valid values for the PCI fields, and the action be taken upon reception of each PCI value (usually based on stored control informa ...
... Layered Communication A protocol also defines the procedures which determine how the PDU will be processed at the transmit and receive nodes. The procedures specify the valid values for the PCI fields, and the action be taken upon reception of each PCI value (usually based on stored control informa ...
networking
... – makes it possible to evolve network without having to change underlying hardware – enables expressing network algorithms in terms of appropriate abstractions for particular applications ...
... – makes it possible to evolve network without having to change underlying hardware – enables expressing network algorithms in terms of appropriate abstractions for particular applications ...
Polygraph: Automatically Generating Signatures for
... Central idea: Machines can know their geographic locations. Route using geography. [MobiCom 2000] • Packet destination field: location of destination • Scalability: Nodes all know tiny own state positions, per e.g., router; low routing – by GPS (outdoors) protocol ...
... Central idea: Machines can know their geographic locations. Route using geography. [MobiCom 2000] • Packet destination field: location of destination • Scalability: Nodes all know tiny own state positions, per e.g., router; low routing – by GPS (outdoors) protocol ...
lecture
... PPP assumes a duplex circuit Note: PPP does not use addresses Usual maximum frame size is 1500 ...
... PPP assumes a duplex circuit Note: PPP does not use addresses Usual maximum frame size is 1500 ...
Chapter 5 - SaigonTech
... networking features and functions can be daunting concepts to grasp – However, they would be more difficult to comprehend if networking weren’t built on a common framework with the process separated into layers • The OSI model and its seven-layer approach to networking provides this common framework ...
... networking features and functions can be daunting concepts to grasp – However, they would be more difficult to comprehend if networking weren’t built on a common framework with the process separated into layers • The OSI model and its seven-layer approach to networking provides this common framework ...
Document
... Users may have multiple identities: work and private in same equipment Users may have multiple terminals with different capabilities ...
... Users may have multiple identities: work and private in same equipment Users may have multiple terminals with different capabilities ...
The Internet Underwater: An IP-compatible Protocol Stack for Commercial Undersea Modems
... regard the underwater network as a system isolated from the Internet. Tunneling at a border router is usually required and assumed implicitly to bridge protocols on both sides. However, tunneling results in unnecessary overhead and may degrade the performance due to inconsistency between protocols a ...
... regard the underwater network as a system isolated from the Internet. Tunneling at a border router is usually required and assumed implicitly to bridge protocols on both sides. However, tunneling results in unnecessary overhead and may degrade the performance due to inconsistency between protocols a ...
Review for final - Computer Science Division
... can’t know if data “really” comes from claimed source if multiple app’s. need special treatment, each has own app. gateway. client software must know how to contact gateway. ...
... can’t know if data “really” comes from claimed source if multiple app’s. need special treatment, each has own app. gateway. client software must know how to contact gateway. ...
Document
... Cost of path (x1, x2, x3,…, xp) = c(x1,x2) + c(x2,x3) + … + c(xp-1,xp) Question: What’s the least-cost path between u and z ? ...
... Cost of path (x1, x2, x3,…, xp) = c(x1,x2) + c(x2,x3) + … + c(xp-1,xp) Question: What’s the least-cost path between u and z ? ...
Denial of Service Resilience in Ad Hoc Networks
... Periodic dropping attack in which attacking nodes drop all packets for a short duration (e.g., tens of ms) once per RTO Passive ...
... Periodic dropping attack in which attacking nodes drop all packets for a short duration (e.g., tens of ms) once per RTO Passive ...
Chapter 15 Local Area Networks
... loops — Only one path between any two devices — Impossible in standards-based implementation to provide multiple paths through multiple switches between devices • Limits both performance and reliability. ...
... loops — Only one path between any two devices — Impossible in standards-based implementation to provide multiple paths through multiple switches between devices • Limits both performance and reliability. ...
Proxies, Active Networks, Re-configurable Terminals: The Cornerstones of Future Wireless Internet
... systems are equipped with multiple radio modems (e.g. GSM and DECT). If there is the need to connect to a larger number of technologies (e.g. also Bluetooth) this approach seems not feasible. More powerful is the soft radio concept [17], which combines different technologies in a single radio modem. ...
... systems are equipped with multiple radio modems (e.g. GSM and DECT). If there is the need to connect to a larger number of technologies (e.g. also Bluetooth) this approach seems not feasible. More powerful is the soft radio concept [17], which combines different technologies in a single radio modem. ...
CISCO Semester III Chapter Questions
... is the one in which frames are completely processed before being forwarded out to the appropriate port • B. Store-and-forward packet switching technique is slower than cut-through packet switching • C. Cut-through packet switching is also known as on-the-fly packet switching • D. Buffering is requir ...
... is the one in which frames are completely processed before being forwarded out to the appropriate port • B. Store-and-forward packet switching technique is slower than cut-through packet switching • C. Cut-through packet switching is also known as on-the-fly packet switching • D. Buffering is requir ...
Go back
... Extranets can be expensive to implement and maintain within an organization (e.g., hardware, software, employee training costs), if hosted internally rather than by an application service provider. Security of extranets can be a concern when hosting valuable or proprietary information. ...
... Extranets can be expensive to implement and maintain within an organization (e.g., hardware, software, employee training costs), if hosted internally rather than by an application service provider. Security of extranets can be a concern when hosting valuable or proprietary information. ...
ACKs
... when packet dropped, any “upstream transmission capacity used for that packet was wasted! 3: Transport Layer 3b-22 ...
... when packet dropped, any “upstream transmission capacity used for that packet was wasted! 3: Transport Layer 3b-22 ...
In this project, we plan to establish a complete communications loop:
... occurs primarily due to congestion somewhere in the network. In wireless links the assumption does not hold, some TCP algorithms may not work as intended and the performance of TCP is nowhere near as efficient on wired networks [2]. Wireless links are inherently unreliable, BER is significantly high ...
... occurs primarily due to congestion somewhere in the network. In wireless links the assumption does not hold, some TCP algorithms may not work as intended and the performance of TCP is nowhere near as efficient on wired networks [2]. Wireless links are inherently unreliable, BER is significantly high ...
GW2412271231
... hosts within communication range and exchange the data among themselves without using any preexisting infrastructure. MANET nodes are typically distinguished by their limited power, processing and memory resources as well as high degree of mobility. In such networks, the wireless mobile nodes may dy ...
... hosts within communication range and exchange the data among themselves without using any preexisting infrastructure. MANET nodes are typically distinguished by their limited power, processing and memory resources as well as high degree of mobility. In such networks, the wireless mobile nodes may dy ...
Networking
... Higher level protocols (e.g. TCP or UDP) could figure out the max transfer unit and chop data into smaller packets The endpoints do not necessarily know what the MTU is ...
... Higher level protocols (e.g. TCP or UDP) could figure out the max transfer unit and chop data into smaller packets The endpoints do not necessarily know what the MTU is ...
Module 9 VLAN Trunking Protocol
... VLANs help manage broadcast domains VLANs can be defined on port groups, users or protocols LAN switches and network management software provide a mechanism to create VLANs ...
... VLANs help manage broadcast domains VLANs can be defined on port groups, users or protocols LAN switches and network management software provide a mechanism to create VLANs ...
Chapter 1. Introduction to Data Communications
... • Sets up virtual circuits for audio-video applications – Real-Time Transport Protocol (RTP) • Used after a virtual connection setup by RSVP or RTSP • Adds a sequence number and a timestamp for helping applications to synchronize delivery • Uses UDP (because of its small header) as transport Copyrig ...
... • Sets up virtual circuits for audio-video applications – Real-Time Transport Protocol (RTP) • Used after a virtual connection setup by RSVP or RTSP • Adds a sequence number and a timestamp for helping applications to synchronize delivery • Uses UDP (because of its small header) as transport Copyrig ...
Chapter 1. Introduction to Data Communications
... • Sets up virtual circuits for audio-video applications – Real-Time Transport Protocol (RTP) • Used after a virtual connection setup by RSVP or RTSP • Adds a sequence number and a timestamp for helping applications to synchronize delivery • Uses UDP (because of its small header) as transport Copyrig ...
... • Sets up virtual circuits for audio-video applications – Real-Time Transport Protocol (RTP) • Used after a virtual connection setup by RSVP or RTSP • Adds a sequence number and a timestamp for helping applications to synchronize delivery • Uses UDP (because of its small header) as transport Copyrig ...
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.