Lecture 1 - Lane Department of Computer Science and Electrical
... Demand for better networks is dramatically increasingTelecommunications companies are racing to get better computer networking capabilities to home, businesses and communities Has become the political center of attention – with government agencies pushing initiatives to get greater network connectiv ...
... Demand for better networks is dramatically increasingTelecommunications companies are racing to get better computer networking capabilities to home, businesses and communities Has become the political center of attention – with government agencies pushing initiatives to get greater network connectiv ...
Buffer-Sizing---CAIDA---May-2005 - McKeown Group
... Typical OC192 router linecard buffers over 2,000,000 packets ...
... Typical OC192 router linecard buffers over 2,000,000 packets ...
Introduction to Distributed Systems and Networking
... Transport Layer: reliable transmission of messages, disassembly/assembly, ordering, retransmission of lost packets • Session Layer; really part of transport, typ. Not impl. • Presentation Layer: data representation in the message ...
... Transport Layer: reliable transmission of messages, disassembly/assembly, ordering, retransmission of lost packets • Session Layer; really part of transport, typ. Not impl. • Presentation Layer: data representation in the message ...
In PDF
... Every HELLO_INTERVAL mili-seconds, a node sends a hello packet to all of its neighbors. When a host receives a HELLO packet, it records the link as operational. If no HELLO packet has been received from a neighboring host in the past DEAD_INTERVAL mili-seconds, it assumes the link (or host) has fail ...
... Every HELLO_INTERVAL mili-seconds, a node sends a hello packet to all of its neighbors. When a host receives a HELLO packet, it records the link as operational. If no HELLO packet has been received from a neighboring host in the past DEAD_INTERVAL mili-seconds, it assumes the link (or host) has fail ...
Discovery 2 Chapter 4 2008
... • You can subnet, for each unequal network – Your address is 210.1.17.64 /26 • Net A needs 37 hosts • Net B needs 15 hosts • Net C needs 100 hosts ...
... • You can subnet, for each unequal network – Your address is 210.1.17.64 /26 • Net A needs 37 hosts • Net B needs 15 hosts • Net C needs 100 hosts ...
Multiple Access Protocols Link Layer Addressing
... A creates linklink-layer frame with R's MAC address as dest, dest, frame contains A A--toto-B IP datagram A’s adapter sends frame R’s adapter receives frame R removes IP datagram from Ethernet frame, sees its destined to B R uses ARP to get B’s MAC address R creates frame containing AA-toto-B IP dat ...
... A creates linklink-layer frame with R's MAC address as dest, dest, frame contains A A--toto-B IP datagram A’s adapter sends frame R’s adapter receives frame R removes IP datagram from Ethernet frame, sees its destined to B R uses ARP to get B’s MAC address R creates frame containing AA-toto-B IP dat ...
Digital Security - UC San Diego
... Eliminates Class A, B, and C networks. Subnet masks must be specified for everything • This is a 3rd piece of configuration now required by an IP host: IP address Subnet mask Default Router ...
... Eliminates Class A, B, and C networks. Subnet masks must be specified for everything • This is a 3rd piece of configuration now required by an IP host: IP address Subnet mask Default Router ...
IP (PoE) Synchronized Clocks
... installation and management, the display clocks meet the needs of the network-centric evolution of facility infrastructure. It leverages the wired network infrastructure of a facility to allow for reliable clock synchronization over an existing LAN/WAN. Each analog or digital clock acquires an IP ad ...
... installation and management, the display clocks meet the needs of the network-centric evolution of facility infrastructure. It leverages the wired network infrastructure of a facility to allow for reliable clock synchronization over an existing LAN/WAN. Each analog or digital clock acquires an IP ad ...
a presentation for Company Name date
... Non-compliant users quarantined Real-time support to get into compliance Approved traffic encrypted ...
... Non-compliant users quarantined Real-time support to get into compliance Approved traffic encrypted ...
Network Protocols
... of Protocols to define communication Application – client functionality Transport - moving data Network – tasks for moving data ...
... of Protocols to define communication Application – client functionality Transport - moving data Network – tasks for moving data ...
Internetworking, or IP and Networking Basics
... networks grow larger it becomes necessary to split them into smaller networks that are interconnected Since each network needs to be connected to every other network, the number of links can be quite high: N (N-1)/2 4 LANs would require six links! ...
... networks grow larger it becomes necessary to split them into smaller networks that are interconnected Since each network needs to be connected to every other network, the number of links can be quite high: N (N-1)/2 4 LANs would require six links! ...
Windows Server Installation
... • Each client or device requires a separate license to access the server • Per user licensing mode is normally used by large companies • Per user licensing mode is normally used by small companies ...
... • Each client or device requires a separate license to access the server • Per user licensing mode is normally used by large companies • Per user licensing mode is normally used by small companies ...
Multiplexing, Circuit Switching and Packet Switching Circuit Switching
... Packet Switching • Sharing by taking turn – Model: conveyor belt in a warehouse – Items are picked from the storage room and placed on the conveyor belt every time a customer makes an order – Different customers may request a different number of items – Different users’ items may be interspersed on ...
... Packet Switching • Sharing by taking turn – Model: conveyor belt in a warehouse – Items are picked from the storage room and placed on the conveyor belt every time a customer makes an order – Different customers may request a different number of items – Different users’ items may be interspersed on ...
Collision domains vs. broadcast domains.
... Detection (CSMA/CD) when transmitting data. All Ethernet devices have equal access to the network media and are capable of transmitting data at any time. This can lead to data collisions. With CSMA/CD, a device listens to the carrier signal on the network media. If no other device is transmitting, t ...
... Detection (CSMA/CD) when transmitting data. All Ethernet devices have equal access to the network media and are capable of transmitting data at any time. This can lead to data collisions. With CSMA/CD, a device listens to the carrier signal on the network media. If no other device is transmitting, t ...
chapter4d
... IP Addressing IP address: network part (high order bits) host part (low order bits) What’s a network ? (from IP address perspective) device interfaces with same network part of IP address can physically reach each other without intervening router ...
... IP Addressing IP address: network part (high order bits) host part (low order bits) What’s a network ? (from IP address perspective) device interfaces with same network part of IP address can physically reach each other without intervening router ...
Ingen lysbildetittel
... The Routers and End Devices will automatically associate to the network coordinator as soon as they are switched on. And all the devices will organize themselves in a mesh network with automatic routing. UART data and I/O data will then be exchanged or mapped between devices that are paired. Member ...
... The Routers and End Devices will automatically associate to the network coordinator as soon as they are switched on. And all the devices will organize themselves in a mesh network with automatic routing. UART data and I/O data will then be exchanged or mapped between devices that are paired. Member ...
introconcepts2
... – Point to point conversation – Not used much any more – Each message is acknowledged as received ...
... – Point to point conversation – Not used much any more – Each message is acknowledged as received ...
ppt
... if adapter receives frame with matching destination address, or with broadcast address (eg ARP packet), it passes data in frame to net-layer protocol otherwise, adapter discards frame ...
... if adapter receives frame with matching destination address, or with broadcast address (eg ARP packet), it passes data in frame to net-layer protocol otherwise, adapter discards frame ...
Chapter 2 Protocols and Architecture
... • 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 ...
First
... Each packet is individually routed. No time guarantee for delivery. No guarantee of delivery in sequence. No guarantee of delivery at all !!! ...
... Each packet is individually routed. No time guarantee for delivery. No guarantee of delivery in sequence. No guarantee of delivery at all !!! ...
Slide 1
... • Its job is simply to switch frame-relay encapsulated frames entering one port (the ingress port) to the correct exiting port (egress port). • It does this by having a pre-defined set of routes configured that map an incoming frames DLCI to an outgoing switch port, these frame-relay routes can beco ...
... • Its job is simply to switch frame-relay encapsulated frames entering one port (the ingress port) to the correct exiting port (egress port). • It does this by having a pre-defined set of routes configured that map an incoming frames DLCI to an outgoing switch port, these frame-relay routes can beco ...
port
... eth0” There “eth0” stands for your first Ethernet interfaces. If you have wlan, you would probably say something like “dhclient wlan0” ...
... eth0” There “eth0” stands for your first Ethernet interfaces. If you have wlan, you would probably say something like “dhclient wlan0” ...
HP OpenView Network Node Manager
... platform that can provide a graphical look into your network and provide many benefits like Fault and Problem management, Performance management, etc • Makes network management proactive instead of reactive • NNM uses SNMP to discover devices on the network and automatically manage and monitor them ...
... platform that can provide a graphical look into your network and provide many benefits like Fault and Problem management, Performance management, etc • Makes network management proactive instead of reactive • NNM uses SNMP to discover devices on the network and automatically manage and monitor them ...
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.