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... decides whether to forward a packet to the parent or one of the children by comparing its address with the destination address. The most benefit of ZTR is that any source node can transmit a packet to an arbitrary destination in a network without any route discovery overheads. Due to this efficiency ...
... decides whether to forward a packet to the parent or one of the children by comparing its address with the destination address. The most benefit of ZTR is that any source node can transmit a packet to an arbitrary destination in a network without any route discovery overheads. Due to this efficiency ...
Week 5 Link Layer & Local Area Networking
... between networks, but when they encounter a data unit that uses a protocol with which they are unfamiliar, they work like a bridge and forward the data to the next segment by using a physical address. You can use Brouters for networks on which there is mixed-protocol traffic and for networks that us ...
... between networks, but when they encounter a data unit that uses a protocol with which they are unfamiliar, they work like a bridge and forward the data to the next segment by using a physical address. You can use Brouters for networks on which there is mixed-protocol traffic and for networks that us ...
Network Forensics Tracking Hackers Through Cyberspace.
... 1. Gather station descriptors, such as MAC addresses, which can help provide a physical description so that you know what to look for 2. For clients, identify the WAP that the station is associated with (by SSID) 3. Leverage commercial enterprise wireless mapping software ...
... 1. Gather station descriptors, such as MAC addresses, which can help provide a physical description so that you know what to look for 2. For clients, identify the WAP that the station is associated with (by SSID) 3. Leverage commercial enterprise wireless mapping software ...
• Communication: transfer of information between entities
... Solution: Modularity - implement functionality with several protocols with “clean” interfaces between implementations of the different protocols. Layering is a popular way of structuring such a family of network protocols. Each layer represents a new level of abstraction with well defined function. ...
... Solution: Modularity - implement functionality with several protocols with “clean” interfaces between implementations of the different protocols. Layering is a popular way of structuring such a family of network protocols. Each layer represents a new level of abstraction with well defined function. ...
Chapter 2
... • The OSI model was meant to help vendors create interoperable network devices and software in the form of protocols so that different vendor networks could work with each other. • The OSI model is the primary architectural model for networks. It describes how data and network information are commun ...
... • The OSI model was meant to help vendors create interoperable network devices and software in the form of protocols so that different vendor networks could work with each other. • The OSI model is the primary architectural model for networks. It describes how data and network information are commun ...
Switches
... Higher-layer switches may also be called routing switches or application switches ...
... Higher-layer switches may also be called routing switches or application switches ...
Mobile Applications and Web Services
... − It is supposed to be a low cost, low power mesh network protocol. − ZigBee operation range is in the industrial, scientific and medical radio bands; − ZigBee’s physical layer and media access control defined in defined based on the IEEE 802.15.4 standard. − ZigBee nodes can go from sleep to active ...
... − It is supposed to be a low cost, low power mesh network protocol. − ZigBee operation range is in the industrial, scientific and medical radio bands; − ZigBee’s physical layer and media access control defined in defined based on the IEEE 802.15.4 standard. − ZigBee nodes can go from sleep to active ...
Review Questions of Switching Networks
... Refers to figure about, the Cisco hierarchical design model is divided into three discrete layers which called core layer, distribution layer and access layer. The main functions provided by each layer are: Access Layer The access layer interfaces with end devices, such as PCs, printers, and IP phon ...
... Refers to figure about, the Cisco hierarchical design model is divided into three discrete layers which called core layer, distribution layer and access layer. The main functions provided by each layer are: Access Layer The access layer interfaces with end devices, such as PCs, printers, and IP phon ...
Chapter 02 - Communicating Over The Network
... This layer handles details of reliable transfer. (ensures that the data arrive ...
... This layer handles details of reliable transfer. (ensures that the data arrive ...
Chapter 1 Data Communications and Networks Overview
... Research Project Agency (DARPA) for its packet switched network (ARPANET) • Used by the global Internet • No official model but a working one. —Application layer —Host to host or transport layer —Internet layer —Network access layer —Physical layer ...
... Research Project Agency (DARPA) for its packet switched network (ARPANET) • Used by the global Internet • No official model but a working one. —Application layer —Host to host or transport layer —Internet layer —Network access layer —Physical layer ...
Chapter 1 Data Communications and Networks Overview
... Research Project Agency (DARPA) for its packet switched network (ARPANET) • Used by the global Internet • No official model but a working one. —Application layer —Host to host or transport layer —Internet layer —Network access layer —Physical layer ...
... Research Project Agency (DARPA) for its packet switched network (ARPANET) • Used by the global Internet • No official model but a working one. —Application layer —Host to host or transport layer —Internet layer —Network access layer —Physical layer ...
LTEC 4550 Assignement 3
... internal networks and the outside network (Internet). In such a situation, the gateway node could also act as a proxy server and a firewall. The gateway is also associated with both a router, which uses headers and forwarding tables to determine where packets are sent, and a switch, which provides t ...
... internal networks and the outside network (Internet). In such a situation, the gateway node could also act as a proxy server and a firewall. The gateway is also associated with both a router, which uses headers and forwarding tables to determine where packets are sent, and a switch, which provides t ...
IEEE 802.15.4 Standard for Wireless Sensor Networks
... high quality monitoring for large geographical areas with relatively inexpensive equipment. The technology involves deploying (manually or from a plane) a large number (50-10,000) of small, inexpensive nodes over the area of interest (Figure 1). Each node is equipped with one or several sensors (sui ...
... high quality monitoring for large geographical areas with relatively inexpensive equipment. The technology involves deploying (manually or from a plane) a large number (50-10,000) of small, inexpensive nodes over the area of interest (Figure 1). Each node is equipped with one or several sensors (sui ...
Lecture # 2 CH. 2 Network Models
... The transport layer is responsible for delivery of a message from one process to another. Responsibilities of the transport layer - Port addressing - Flow control - Error control Session, presentation layers (according to the Dr’s recommendations) are not important Application Layer The applicatio ...
... The transport layer is responsible for delivery of a message from one process to another. Responsibilities of the transport layer - Port addressing - Flow control - Error control Session, presentation layers (according to the Dr’s recommendations) are not important Application Layer The applicatio ...
Making Sense of IoT Standards
... repeatedly transporting data through a mesh network of intermediate devices. ZigBee is typically used in low data rate applications that require long battery life and secure networking (ZigBee networks are secured by 128-bit symmetric encryption keys) and has a defined rate of 250 Kbps, which is bes ...
... repeatedly transporting data through a mesh network of intermediate devices. ZigBee is typically used in low data rate applications that require long battery life and secure networking (ZigBee networks are secured by 128-bit symmetric encryption keys) and has a defined rate of 250 Kbps, which is bes ...
A Distributed Infrared Temperature Monitoring System
... temperature measurement technology appear [5-6], which are divided into contact temperature [7] and non-contact temperature [6] according to temperature measurement methods. The contact temperature measurement obtain the device temperature by temperature sensor full accessing to the device, however, ...
... temperature measurement technology appear [5-6], which are divided into contact temperature [7] and non-contact temperature [6] according to temperature measurement methods. The contact temperature measurement obtain the device temperature by temperature sensor full accessing to the device, however, ...
Wireless Mesh Network (WMN)
... – size vs. performance, routing protocol • 802.11 share BW – multiple access techniques • TDMA – synchronization • CDMA - code control • CSMA/CA ...
... – size vs. performance, routing protocol • 802.11 share BW – multiple access techniques • TDMA – synchronization • CDMA - code control • CSMA/CA ...
An Analytical Solution to Video Streaming in Mobile Ad hoc Networks
... RREQ with metrics larger than the best will be dropped; otherwise update the best with current metric. ...
... RREQ with metrics larger than the best will be dropped; otherwise update the best with current metric. ...
chapter2ccna
... Internet Control Message Protocol (ICMP) works at the Network layer and is used by IP for many different services. •ICMP is a management protocol and messaging service provider for IP. •Its messages are carried as IP datagrams. ICMP packets have the following characteristics: • They can provide host ...
... Internet Control Message Protocol (ICMP) works at the Network layer and is used by IP for many different services. •ICMP is a management protocol and messaging service provider for IP. •Its messages are carried as IP datagrams. ICMP packets have the following characteristics: • They can provide host ...
Computer Security
... addresses, protocol commands, historical comparisons, and contents of packet Uses a state engine and state table Monitor connection-oriented and connectionless protocols Expensive and complex to administer 3rd generation firewall ...
... addresses, protocol commands, historical comparisons, and contents of packet Uses a state engine and state table Monitor connection-oriented and connectionless protocols Expensive and complex to administer 3rd generation firewall ...
Analysis of Denial-of-Service attacks on Wireless Sensor Networks
... a) The simulation model considered here has a tree topology where the communication takes place between the nodes coordinator, a router and the end device. Each of the operating devices has a unique address. b) The traffic source generates the application data. This data can be generated either by t ...
... a) The simulation model considered here has a tree topology where the communication takes place between the nodes coordinator, a router and the end device. Each of the operating devices has a unique address. b) The traffic source generates the application data. This data can be generated either by t ...
3 - Terena
... • For Cisco Systems devices, finds serial number and model information • Plans for the future… ...
... • For Cisco Systems devices, finds serial number and model information • Plans for the future… ...
Week One
... • Each layer performs a subset of the required communication functions • Each layer relies on the next lower layer to perform more primitive functions • Each layer provides services to the next higher layer • Changes in one layer should not require changes in other layers ...
... • Each layer performs a subset of the required communication functions • Each layer relies on the next lower layer to perform more primitive functions • Each layer provides services to the next higher layer • Changes in one layer should not require changes in other layers ...
PPT
... Highly sensitive to errors Not as time sensitive as voice or video Interactive Voice/Video Fixed Rate (if not compressed) *Not sensitive to errors Fixed or Variable Rate (if compressed) *Sensitive to errors Time Sensitive ...
... Highly sensitive to errors Not as time sensitive as voice or video Interactive Voice/Video Fixed Rate (if not compressed) *Not sensitive to errors Fixed or Variable Rate (if compressed) *Sensitive to errors Time Sensitive ...