Chapter 2 Networks and the Internet
... Seven-layer model created to enable problem isolation Diagnostic and troubleshooting tool Each layer supports the layer above and performs a specific function ...
... Seven-layer model created to enable problem isolation Diagnostic and troubleshooting tool Each layer supports the layer above and performs a specific function ...
No Slide Title
... which they were sent. Virtual circuit. A path from A to B is fixed for the duration of one session. Different sessions involving messages from A to B may have different paths. – Partial remedy to adapting to load changes. – Ensures that messages will be delivered in the order in which they were sent ...
... which they were sent. Virtual circuit. A path from A to B is fixed for the duration of one session. Different sessions involving messages from A to B may have different paths. – Partial remedy to adapting to load changes. – Ensures that messages will be delivered in the order in which they were sent ...
9-0 Internet Protocol Attacks and some Defenses
... with addresses of attacker-controlled machines • Some DNS services have known buffer overflows ...
... with addresses of attacker-controlled machines • Some DNS services have known buffer overflows ...
Answer Key - EECS: www-inst.eecs.berkeley.edu
... 1. Transport protocols should not be aware of the link-‐layer technology used to carry packets. 2. Routers do not hold per-‐flow state. 3. Hosts do not depend on the network for reliable packet delivery. ...
... 1. Transport protocols should not be aware of the link-‐layer technology used to carry packets. 2. Routers do not hold per-‐flow state. 3. Hosts do not depend on the network for reliable packet delivery. ...
Introduction to Network Layer
... the number of bits passing through the point in a second, which is actually the transmission rate of data at that point. In a path from source to destination, a packet may pass through several links (networks), each with a different transmission rate. How, then, can we determine the throughput of th ...
... the number of bits passing through the point in a second, which is actually the transmission rate of data at that point. In a path from source to destination, a packet may pass through several links (networks), each with a different transmission rate. How, then, can we determine the throughput of th ...
What is an Optical Internet?
... SONET framing disadvantages no interoperable standard SAR processing more complex as there can be multiple packets per frame, or packets can cross frame boundaries tributary services require SONET mux services no well established carrier network management protocols for fault detection and ...
... SONET framing disadvantages no interoperable standard SAR processing more complex as there can be multiple packets per frame, or packets can cross frame boundaries tributary services require SONET mux services no well established carrier network management protocols for fault detection and ...
Slide 1
... Digital communication can be established without having direct physical connection between the communicating points. ...
... Digital communication can be established without having direct physical connection between the communicating points. ...
transport layer
... Introduction: The Network and Transport Layers • The transport layer is responsible for end-to-end delivery of messages. • The transport layer sets up virtual circuits (when needed) and is also responsible for segmentation (breaking the message into several smaller pieces) at the sending end and re ...
... Introduction: The Network and Transport Layers • The transport layer is responsible for end-to-end delivery of messages. • The transport layer sets up virtual circuits (when needed) and is also responsible for segmentation (breaking the message into several smaller pieces) at the sending end and re ...
EE 122: Computer Networks
... • Time-To-Live field in IP packet header – Source sends a packet with TTL ranging from 1 to n – Each router along the path decrements the TTL – “TTL exceeded” sent when TTL reaches 0 ...
... • Time-To-Live field in IP packet header – Source sends a packet with TTL ranging from 1 to n – Each router along the path decrements the TTL – “TTL exceeded” sent when TTL reaches 0 ...
Guide to Networking Essentials, Fifth Edition
... 2. Stress that you should document everything that’s important to installing, maintaining, and troubleshooting the network. 3. Network Topology. Stress the importance of documenting the network topology. Explain that the documentation should include a network diagram showing the logical topology (fo ...
... 2. Stress that you should document everything that’s important to installing, maintaining, and troubleshooting the network. 3. Network Topology. Stress the importance of documenting the network topology. Explain that the documentation should include a network diagram showing the logical topology (fo ...
XLesson 4 - Multiplexing 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 ...
... segments may be: lost delivered out of order to app connectionless: no handshaking between UDP sender, receiver each UDP segment handled independently of others ...
CSEMS Lecture on Networking Basics
... Properties of DNS Host Entries Each host entry is an equivalence class of domain names and IP addresses. Each host has a locally defined domain name localhost which always maps to the loopback address ...
... Properties of DNS Host Entries Each host entry is an equivalence class of domain names and IP addresses. Each host has a locally defined domain name localhost which always maps to the loopback address ...
ppt
... Implements an internet protocol (i.e., set of rules) that governs how hosts and routers should cooperate when they transfer data from network to network. ...
... Implements an internet protocol (i.e., set of rules) that governs how hosts and routers should cooperate when they transfer data from network to network. ...
Advanced Intelligent Network for Wireless Communications
... (SLPs) that run in Service Control Points (SCPs). SCPs are, in most cases, ordinary commercially available microprocessor-based workstations or servers, running the same insecure operating systems that are used on most Internet hosts. SCPs communicate with switches through the SS7 network. In additi ...
... (SLPs) that run in Service Control Points (SCPs). SCPs are, in most cases, ordinary commercially available microprocessor-based workstations or servers, running the same insecure operating systems that are used on most Internet hosts. SCPs communicate with switches through the SS7 network. In additi ...
incs775_lect5
... practical solution to the impending exhaustion of IPv4 address space. – Networks that previously required a Class B IP range or a block of Class C network addresses can now be connected to the Internet with as little as a single IP address (many home networks are set up this way). – The more common ...
... practical solution to the impending exhaustion of IPv4 address space. – Networks that previously required a Class B IP range or a block of Class C network addresses can now be connected to the Internet with as little as a single IP address (many home networks are set up this way). – The more common ...
03_Internetworking
... Protocols at this level transmit data in a network representation that is independent of the representations used in individual computers, which may differ. Encryption is also performed in this layer, if required. At this level reliability and adaptation are performed, such as detection of failures ...
... Protocols at this level transmit data in a network representation that is independent of the representations used in individual computers, which may differ. Encryption is also performed in this layer, if required. At this level reliability and adaptation are performed, such as detection of failures ...
MULTIMEDIA TRAINING KIT
... however, connect via the telephone system with a modem or ADSL, using their telephone wire (via the ‘local loop’ between the telephone and the telephone exchange) because it is cheaper and more readily available. In general, the faster the connection, the more it costs. When you connect via a commer ...
... however, connect via the telephone system with a modem or ADSL, using their telephone wire (via the ‘local loop’ between the telephone and the telephone exchange) because it is cheaper and more readily available. In general, the faster the connection, the more it costs. When you connect via a commer ...
Chapter 2 Networking Standards and the OSI Model
... • Bottommost Layer Referred to as the “hardware layer” • Hardware-oriented, establishes and maintains physical link between communication computers • Defines how the cable is attached to the NIC • Packet sent as an unstructured raw bit stream over physical medium • Protocols accept frames from Data ...
... • Bottommost Layer Referred to as the “hardware layer” • Hardware-oriented, establishes and maintains physical link between communication computers • Defines how the cable is attached to the NIC • Packet sent as an unstructured raw bit stream over physical medium • Protocols accept frames from Data ...
投影片 1
... Roaming support of wireless component communication Switching support of component communication using network processors Streaming support of component communication for multimedia applications Transcoding support (On-going) ...
... Roaming support of wireless component communication Switching support of component communication using network processors Streaming support of component communication for multimedia applications Transcoding support (On-going) ...
Cross Stratum Optimization
... – TOR switch to Layer 2 Switch - link and node level – Between L2 Switches and L2 switch to L2 core/gateway switch/router - link and node level – L2 gateway router to provider edge (PE) router - link and node level. November 2010 ...
... – TOR switch to Layer 2 Switch - link and node level – Between L2 Switches and L2 switch to L2 core/gateway switch/router - link and node level – L2 gateway router to provider edge (PE) router - link and node level. November 2010 ...
ppt
... In 1974 Vint Cerf co-wrote TCP/IP, the language that allows computers to communicate with one another. His wife of 35 years (Sigrid), hearing-impaired since childhood, began using the Internet in the early 1990s to research cochlear implants, electronic devices that work with the ear's own physiolog ...
... In 1974 Vint Cerf co-wrote TCP/IP, the language that allows computers to communicate with one another. His wife of 35 years (Sigrid), hearing-impaired since childhood, began using the Internet in the early 1990s to research cochlear implants, electronic devices that work with the ear's own physiolog ...