Part I: Introduction - UMD Department of Computer Science
... if entry found for destination then forward the frame on interface indicated; else flood; /* forward on all but the interface on which the frame arrived*/ ...
... if entry found for destination then forward the frame on interface indicated; else flood; /* forward on all but the interface on which the frame arrived*/ ...
New Kogod Powerpoint Template
... • Note: two or more LAN’s in a city can also be interconnected with point-to-point connections (forming a MAN). For example, you can connect two office LANs using a T1 line – the cost depends on the distance between the two offices Topic 4: Telecom p.33 ...
... • Note: two or more LAN’s in a city can also be interconnected with point-to-point connections (forming a MAN). For example, you can connect two office LANs using a T1 line – the cost depends on the distance between the two offices Topic 4: Telecom p.33 ...
Chapter 1. Introduction to Data Communications
... • Process L3 messages (no changes made) • Form new L2 messages for outgoing packets – Processes only messages specifically addressed to it Copyright 2005 John Wiley & Sons, Inc ...
... • Process L3 messages (no changes made) • Form new L2 messages for outgoing packets – Processes only messages specifically addressed to it Copyright 2005 John Wiley & Sons, Inc ...
International Journal of Electrical, Electronics and Computer
... Home automation, utility meters, appliances, security systems, card readers, and building controls, which can be easily, controlled using either special front-end software or a standard internet browser client from anywhere around the world. Web access functionality is embedded in a device to enable ...
... Home automation, utility meters, appliances, security systems, card readers, and building controls, which can be easily, controlled using either special front-end software or a standard internet browser client from anywhere around the world. Web access functionality is embedded in a device to enable ...
William Stallings Data and Computer Communications
... • PSDN is designed specifically for the transmission of data rather than voice • Communication is shared ...
... • PSDN is designed specifically for the transmission of data rather than voice • Communication is shared ...
VERA: An Extensible Router Architecture Scott Karlin and Larry Peterson
... known flows to determine the correct path within the router. Packets not in the cache, as well as packets that require special processing (e.g., initial packets of a flow), are sent to the next level. ...
... known flows to determine the correct path within the router. Packets not in the cache, as well as packets that require special processing (e.g., initial packets of a flow), are sent to the next level. ...
Wireless Network Security
... How to defend when using WEP • Use longer WEP encryption keys, which makes the data analysis task more difficult. If your WLAN equipment supports 128-bit WEP keys. • Change your WEP keys frequently. There are devices that support "dynamic WEP" which is off the standard but allows different WEP keys ...
... How to defend when using WEP • Use longer WEP encryption keys, which makes the data analysis task more difficult. If your WLAN equipment supports 128-bit WEP keys. • Change your WEP keys frequently. There are devices that support "dynamic WEP" which is off the standard but allows different WEP keys ...
An SNMP Agent for Active In-network Measurements
... observation and recording of parameters and metrics retrieved from the network nodes during normal operation, active measurements involve the insertion of probe (i.e. artificially generated) traffic into the network. This artificial traffic has certain characteristics, such as packet size and rate, ...
... observation and recording of parameters and metrics retrieved from the network nodes during normal operation, active measurements involve the insertion of probe (i.e. artificially generated) traffic into the network. This artificial traffic has certain characteristics, such as packet size and rate, ...
Introduction to dynamic routing with Quagga
... system can result in slow convergence OSPF – also uses multicast. Calculates shortest path using costs assigned to each link. Easy to setup but less knobs then BGP. Used inside organization BGP – uses TCP session. Can do filtering, route-maps, mangling, etc. Normally used for communicating with ...
... system can result in slow convergence OSPF – also uses multicast. Calculates shortest path using costs assigned to each link. Easy to setup but less knobs then BGP. Used inside organization BGP – uses TCP session. Can do filtering, route-maps, mangling, etc. Normally used for communicating with ...
3rdEdition_Chapter1
... each end-end data stream divided aggregate resource demand can into packets exceed amount available - long messages are divided into congestion: packets The arrival rate of packets to user A, B packets share the switch exceeds the rate at network resources which the switch can forward each ...
... each end-end data stream divided aggregate resource demand can into packets exceed amount available - long messages are divided into congestion: packets The arrival rate of packets to user A, B packets share the switch exceeds the rate at network resources which the switch can forward each ...
01_NF_CH06_AddressingTheNetwork
... explained earlier, within each network the first and last addresses cannot be assigned to hosts. These are the network address and the broadcast address, respectively. Default Route - Also presented earlier, we represent the IPv4 default route as 0.0.0.0. The default route is used as a "catch all" r ...
... explained earlier, within each network the first and last addresses cannot be assigned to hosts. These are the network address and the broadcast address, respectively. Default Route - Also presented earlier, we represent the IPv4 default route as 0.0.0.0. The default route is used as a "catch all" r ...
Unit 2–Computer Network Fundamentals
... operating systems. Examples include Appletalk, IPX/SPX, NeuBEUI, and DECNet, among others. With the growing popularity of the Internet beginning in the mid-1990s, most of these protocols have been deprecated in favor of the Internet protocol suite, known as TCP/IP (Transmission Control Protocol/Inte ...
... operating systems. Examples include Appletalk, IPX/SPX, NeuBEUI, and DECNet, among others. With the growing popularity of the Internet beginning in the mid-1990s, most of these protocols have been deprecated in favor of the Internet protocol suite, known as TCP/IP (Transmission Control Protocol/Inte ...
Lab 15 - Kno.e.sis
... • Each node in the network has a routing table • Routing table keeps track of • What are the other nodes directly connected to a given node • What routes to take if a node is not directly connected to the given node Source – http://en.wikipedia.org/wiki/Hop_(networking)#Next_hop_forwarding CS 1150 – ...
... • Each node in the network has a routing table • Routing table keeps track of • What are the other nodes directly connected to a given node • What routes to take if a node is not directly connected to the given node Source – http://en.wikipedia.org/wiki/Hop_(networking)#Next_hop_forwarding CS 1150 – ...
Linux+ Guide to Linux Certification
... • A network is a group of computers and other devices that are connected by some type of transmission media • In a peer-to-peer network, every computer can communicate directly with every other computer • A client/server network uses a server to enable clients to share data, data storage space, and ...
... • A network is a group of computers and other devices that are connected by some type of transmission media • In a peer-to-peer network, every computer can communicate directly with every other computer • A client/server network uses a server to enable clients to share data, data storage space, and ...
ADVANCED COMPUTER NETWORKS - Sample Paper 1
... The connection-hijacking attack is shown in Figure. A, B and C are IPv6 addresses. The Internet nodes A and B are honest and communicating with each other. An attacker at the address C sends a false binding update to B, claiming to be a mobile with the home address A. If B, acting in the role of a c ...
... The connection-hijacking attack is shown in Figure. A, B and C are IPv6 addresses. The Internet nodes A and B are honest and communicating with each other. An attacker at the address C sends a false binding update to B, claiming to be a mobile with the home address A. If B, acting in the role of a c ...
Part I: Introduction
... sent to neighbors Neighbors in turn send out new advertisements if their tables changed Link failure info quickly propagates to entire net Poison reverse used to prevent ping-pong loops (infinite distance = 16 hops) Routers can request info about neighbor’s cost Advertisements are sent via UDP using ...
... sent to neighbors Neighbors in turn send out new advertisements if their tables changed Link failure info quickly propagates to entire net Poison reverse used to prevent ping-pong loops (infinite distance = 16 hops) Routers can request info about neighbor’s cost Advertisements are sent via UDP using ...
CSE 422 Computer Networks - Computer Science and Engineering
... • A useful feature of SMDS is broadcasting • Another useful feature is address screening on both incoming & outgoing packets ...
... • A useful feature of SMDS is broadcasting • Another useful feature is address screening on both incoming & outgoing packets ...
Common Gateway Interface
... Bearer service – The basic set of services offered over the B-channel that provides the capability to exchange signals between two user-network interfaces. BootP – The Bootstrap Protocol is a UDP/IP-based protocol which allows a booting host to configure itself dynamically and without user supervisi ...
... Bearer service – The basic set of services offered over the B-channel that provides the capability to exchange signals between two user-network interfaces. BootP – The Bootstrap Protocol is a UDP/IP-based protocol which allows a booting host to configure itself dynamically and without user supervisi ...
session2-layer3
... Where to put Servers? • Servers should be on a high speed interface off of your core router • Servers should be at your core location where there is good power and air conditioning Border Router ...
... Where to put Servers? • Servers should be on a high speed interface off of your core router • Servers should be at your core location where there is good power and air conditioning Border Router ...
5.Transport Layer
... When a client wishes to utilise the services of TCP it must also first make a call to SOCKET. In this case however the address of the TSAP does not matter since the client connects to the server (not viceversa) Once the socket has been created the CONNECT call asks TCP to make a connection to the se ...
... When a client wishes to utilise the services of TCP it must also first make a call to SOCKET. In this case however the address of the TSAP does not matter since the client connects to the server (not viceversa) Once the socket has been created the CONNECT call asks TCP to make a connection to the se ...
Networks - Columbia University
... lost packet may be retransmitted by previous node, by source end system, or not at all ...
... lost packet may be retransmitted by previous node, by source end system, or not at all ...
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.