Adaptive Coding and Packet Rates for TCP-Friendly VoIP Flows
... delay control for interactive VoIP. By applying a quality model, which takes into account both packet loss and delay impairment, the author could find analytically the best coding rate and amount of FEC for a given packet loss process and round trip time. Also, they included TCP friendliness module, ...
... delay control for interactive VoIP. By applying a quality model, which takes into account both packet loss and delay impairment, the author could find analytically the best coding rate and amount of FEC for a given packet loss process and round trip time. Also, they included TCP friendliness module, ...
slides ppt
... Let y be the total bandwidth of all flows [pkts/sec] Let C be the total available capacity [pkts/sec] • TCP and the network act so as to solve maximise r U(xr) - P(y,C) over xr0 where y=r xr ...
... Let y be the total bandwidth of all flows [pkts/sec] Let C be the total available capacity [pkts/sec] • TCP and the network act so as to solve maximise r U(xr) - P(y,C) over xr0 where y=r xr ...
Final exam
... 2. We transfer a 6 M byte message through a network with the bandwidth of 400 Kbps, using the Go-back-N ARQ protocol. The sender window size is 4, and the receiver sends ACK for each data frame. Each data frame carries 2,000 bits of data. Assume that the distance between the sender and the receiver ...
... 2. We transfer a 6 M byte message through a network with the bandwidth of 400 Kbps, using the Go-back-N ARQ protocol. The sender window size is 4, and the receiver sends ACK for each data frame. Each data frame carries 2,000 bits of data. Assume that the distance between the sender and the receiver ...
UPnP & DLNA
... • The two most common reasons for delivery failures – Link transmission failures – Queue congestion at the receiver ...
... • The two most common reasons for delivery failures – Link transmission failures – Queue congestion at the receiver ...
View
... Error control. The data link layer adds reliability to the physical layer by adding mechanisms to detect and retransmit damaged or lost frames. It also uses a mechanism to recognize duplicate frames. Error control is normally achieved through a trailer added to the end of the frame. Access control. ...
... Error control. The data link layer adds reliability to the physical layer by adding mechanisms to detect and retransmit damaged or lost frames. It also uses a mechanism to recognize duplicate frames. Error control is normally achieved through a trailer added to the end of the frame. Access control. ...
Types of networks and network topologies File
... lines, cables, and air waves. A WAN often uses transmission facilities provided by common carriers, such as telephone companies. WAN technologies generally function at the lower three layers of the OSI reference model: the physical layer, the data link layer, and the network layer. Campus network A ...
... lines, cables, and air waves. A WAN often uses transmission facilities provided by common carriers, such as telephone companies. WAN technologies generally function at the lower three layers of the OSI reference model: the physical layer, the data link layer, and the network layer. Campus network A ...
Week_Four_Network_ppt
... associating switch ports with one or more VLANs. A VLAN can span many switches, broadcast traffic within a VLAN is not transmitted outside the VLAN. Broadcast radiation is a term used to describe the affect of broadcasts spreading from the sender to all other devices in a broadcast domain. Broadcast ...
... associating switch ports with one or more VLANs. A VLAN can span many switches, broadcast traffic within a VLAN is not transmitted outside the VLAN. Broadcast radiation is a term used to describe the affect of broadcasts spreading from the sender to all other devices in a broadcast domain. Broadcast ...
ITC2015 Advanced Network Tap application for
... client to use for time stamp generation at the tap level • Time Stamping of Mirrored Data critical if tapped data is not directly sent to a recorder • Tapped data should be time stamped as close to the source as possible • Time stamp inserted by time stamp module, either in packet header or in packe ...
... client to use for time stamp generation at the tap level • Time Stamping of Mirrored Data critical if tapped data is not directly sent to a recorder • Tapped data should be time stamped as close to the source as possible • Time stamp inserted by time stamp module, either in packet header or in packe ...
DNS and ARP
... • A knows B's IP address, wants to learn physical address of B • A broadcasts ARP query packet, containing B's IP address – all machines on LAN receive ARP query • B receives ARP packet, replies to A with its (B's) physical layer address • A caches (saves) IP-to-physical address pairs ...
... • A knows B's IP address, wants to learn physical address of B • A broadcasts ARP query packet, containing B's IP address – all machines on LAN receive ARP query • B receives ARP packet, replies to A with its (B's) physical layer address • A caches (saves) IP-to-physical address pairs ...
IP Addressing - School of Computing
... pairs so that the translation can be performed in reverse when answering packets arrive from the Internet. NAT’s use of port number mapping multiplexes several conversations onto the same IP address so that a single external address can be shared by many internal hosts. In some cases, a site can get ...
... pairs so that the translation can be performed in reverse when answering packets arrive from the Internet. NAT’s use of port number mapping multiplexes several conversations onto the same IP address so that a single external address can be shared by many internal hosts. In some cases, a site can get ...
Underlying Technologies
... • The Internet is not made up of homogeneous networks. • Ethernet is one type of physical transmission standard/data link standard used for LAN communications. • Other packet switching technologies are used for WAN and Internet. – Frame Relay – FDDI – ATM ...
... • The Internet is not made up of homogeneous networks. • Ethernet is one type of physical transmission standard/data link standard used for LAN communications. • Other packet switching technologies are used for WAN and Internet. – Frame Relay – FDDI – ATM ...
comp203-Chapter02
... for currency include that it keeps an accurate inventory of equipment, cables, and ancillary equipment; maintains indicators of what construction activities might impact the network, and provides a complete record of a network's carrying capacity as a tool for planning for growth and expansion. 17. ...
... for currency include that it keeps an accurate inventory of equipment, cables, and ancillary equipment; maintains indicators of what construction activities might impact the network, and provides a complete record of a network's carrying capacity as a tool for planning for growth and expansion. 17. ...
ProxPro® Reader
... Additional conductors may be required for LED or beeper control. RS-422 requires ALPHA 6212C 2-Twisted Pair, shielded cable with drain wire, or equivalent for data, plus ALPHA 1292C two-conductor shielded or equivalent for DC power. ...
... Additional conductors may be required for LED or beeper control. RS-422 requires ALPHA 6212C 2-Twisted Pair, shielded cable with drain wire, or equivalent for data, plus ALPHA 1292C two-conductor shielded or equivalent for DC power. ...
E-Class Network Security Appliance Series
... security and visibility. In security gateway deployments, it adds secure remote access, high availability and other enterprise features. The E-Class NSA Series is a key part of Dell SonicWALL’s portfolio of enterpriseclass products and services for network security, email security and secure remote ...
... security and visibility. In security gateway deployments, it adds secure remote access, high availability and other enterprise features. The E-Class NSA Series is a key part of Dell SonicWALL’s portfolio of enterpriseclass products and services for network security, email security and secure remote ...
Introduction
... Check frame’s destination MAC address, and process only if directed to this router or to a broadcast/multicast address. Discard frame’s old data-link header and trailer, leaving IP packet. Compare destination IP address to routing table, finding route that matches destination address. Route identifi ...
... Check frame’s destination MAC address, and process only if directed to this router or to a broadcast/multicast address. Discard frame’s old data-link header and trailer, leaving IP packet. Compare destination IP address to routing table, finding route that matches destination address. Route identifi ...
MICRO-35 Tutorial - Applied Research Laboratory
... – Better performance than general-purpose processors – Software-based functionality provides: • Faster time to market • Ability to ‘fix it later’ Lit Pointers: [AweyaX] , [Free02] ...
... – Better performance than general-purpose processors – Software-based functionality provides: • Faster time to market • Ability to ‘fix it later’ Lit Pointers: [AweyaX] , [Free02] ...
Chapter 8 Slides (Modified) File
... (RF), such as WiFi, WiMax, Bluetooth, or infrared. • Two main uses: 1. Endpoints of connectivity: For example connecting laptops or smart phones to a wireless router. 2. Relay between network segments when cable connection is not practical, such as with satellite and microwave systems. ...
... (RF), such as WiFi, WiMax, Bluetooth, or infrared. • Two main uses: 1. Endpoints of connectivity: For example connecting laptops or smart phones to a wireless router. 2. Relay between network segments when cable connection is not practical, such as with satellite and microwave systems. ...
Ch08
... service between end systems. • Advantages from IP’s connectionless internet services: —Flexible: IP can deal with a variety of networks. IP requires little from the constituent networks. —Robust: IP uses datagram services. —Best for connectionless transport protocols: No unnecessary overhead ...
... service between end systems. • Advantages from IP’s connectionless internet services: —Flexible: IP can deal with a variety of networks. IP requires little from the constituent networks. —Robust: IP uses datagram services. —Best for connectionless transport protocols: No unnecessary overhead ...
hello world
... Subnets in which intermediate routers can store a packet and forward it is called point-to-point or store-and-forward, packet switched. ...
... Subnets in which intermediate routers can store a packet and forward it is called point-to-point or store-and-forward, packet switched. ...
The protocol
... Flexibility: Networks can easily be installed. For example, users can quickly install a small WLAN for temporary needs such as a conference, trade show, or meeting (ad hoc networks). Wireless local loop (WLL) Scalability: Network topology can easily be configured to meet specific application and i ...
... Flexibility: Networks can easily be installed. For example, users can quickly install a small WLAN for temporary needs such as a conference, trade show, or meeting (ad hoc networks). Wireless local loop (WLL) Scalability: Network topology can easily be configured to meet specific application and i ...
A Network Intrusion Testbed through Honeypots
... implemented and tested a network intrusion honeypot. His goal was to test and explore different configurations of a honeypot to see how the honeypot would behave when deployed over a large network, particularly on the network of University of Western Australias Department of Computer Science. The pr ...
... implemented and tested a network intrusion honeypot. His goal was to test and explore different configurations of a honeypot to see how the honeypot would behave when deployed over a large network, particularly on the network of University of Western Australias Department of Computer Science. The pr ...
CCNA1 3.0-11 TCPIP Transport & Application Layers
... In other words, different applications can send data segments on a first-come, firstserved basis. The segments that arrive first will be taken care of first. These segments can be routed to the same or different destinations. This is referred to as the multiplexing of upper-layer conversations. One ...
... In other words, different applications can send data segments on a first-come, firstserved basis. The segments that arrive first will be taken care of first. These segments can be routed to the same or different destinations. This is referred to as the multiplexing of upper-layer conversations. One ...
Wake-on-LAN
Wake-on-LAN (WoL) is an Ethernet or Token ring computer networking standard that allows a computer to be turned on or awakened by a network message.The message is usually sent by a program executed on another computer on the same local area network. It is also possible to initiate the message from another network by using subnet directed broadcasts or a WOL gateway service. Equivalent terms include wake on WAN, remote wake-up, power on by LAN, power up by LAN, resume by LAN, resume on LAN and wake up on LAN. In case the computer being awakened is communicating via Wi-Fi, a supplementary standard called Wake on Wireless LAN (WoWLAN) must be employed.The WOL and WoWLAN standards are often supplemented by vendors to provide protocol-transparent on-demand services, for example in the Apple Bonjour wake-on-demand (Sleep Proxy) feature.