No Slide Title
... status of Network • Unable to Prove This to NonTechnical Managers • Needed a Tool to Demonstrate Where Problems Really Are ...
... status of Network • Unable to Prove This to NonTechnical Managers • Needed a Tool to Demonstrate Where Problems Really Are ...
The Network Layer
... choose a new route for every packet sent. Instead,when a connection is established, a route from the source machine to the destination machine is chosen as part of the connection setup and stored in tables inside the routers. That route is used for all traffic flowing over the connection, exactly th ...
... choose a new route for every packet sent. Instead,when a connection is established, a route from the source machine to the destination machine is chosen as part of the connection setup and stored in tables inside the routers. That route is used for all traffic flowing over the connection, exactly th ...
Implementing iptables using a programmable
... SUME’s line rate) with practically no server’s CPU involvement. However, the hardware data plane is likely to have stringent scalability constraints e.g., on the number of entries that can be written to the stage’s tables. Using the smart NIC’s data plane as a cache for a software data plane running ...
... SUME’s line rate) with practically no server’s CPU involvement. However, the hardware data plane is likely to have stringent scalability constraints e.g., on the number of entries that can be written to the stage’s tables. Using the smart NIC’s data plane as a cache for a software data plane running ...
Local Area Networks
... How Networks are Structured – Local Area Networks (LANs) • A LAN is a network whose computers are located relatively near one another. The nodes may be connected by a cable, infrared link, or small transmitters. • A network transmits data among computers by breaking it into small pieces, called pac ...
... How Networks are Structured – Local Area Networks (LANs) • A LAN is a network whose computers are located relatively near one another. The nodes may be connected by a cable, infrared link, or small transmitters. • A network transmits data among computers by breaking it into small pieces, called pac ...
N4Less17.pps - GEOCITIES.ws
... How Networks are Structured – Local Area Networks (LANs) • A LAN is a network whose computers are located relatively near one another. The nodes may be connected by a cable, infrared link, or small transmitters. • A network transmits data among computers by breaking it into small pieces, called pac ...
... How Networks are Structured – Local Area Networks (LANs) • A LAN is a network whose computers are located relatively near one another. The nodes may be connected by a cable, infrared link, or small transmitters. • A network transmits data among computers by breaking it into small pieces, called pac ...
10/01/04
... software and hardware – Consider two nodes communicating • Use an application (e.g. send Email, get a file) • The application uses the network services of the operating system (provides high-level functions, e.g. file sharing services) • The operating system services make use of the network system ( ...
... software and hardware – Consider two nodes communicating • Use an application (e.g. send Email, get a file) • The application uses the network services of the operating system (provides high-level functions, e.g. file sharing services) • The operating system services make use of the network system ( ...
Physical and Data Link Layer
... • Methods for encapsulation IP datagrams on serial line, correct all deficiency in SLIP • Support either an asynchronous link with 8N1 or bit oriented synchronous link • Two parts: – LCP :(Link Control Protocol ) to establish, configure and test connection – NCP :(Network Control Protocol) support d ...
... • Methods for encapsulation IP datagrams on serial line, correct all deficiency in SLIP • Support either an asynchronous link with 8N1 or bit oriented synchronous link • Two parts: – LCP :(Link Control Protocol ) to establish, configure and test connection – NCP :(Network Control Protocol) support d ...
PowerPoint Presentation - Staffordshire University
... Secure communications layer does not need adding ...
... Secure communications layer does not need adding ...
Network Traversal
... The Host-IP pairs can be used to back-track hackers’ resources. For example, if hacker A uses domain blblbfizzly.com , we can now blacklist it. we look it up in passive dns to find ip pairs we find it matches the following IPs: 8.8.8.8 and 8.8.4.4. We can look up in th e same database for pairs with ...
... The Host-IP pairs can be used to back-track hackers’ resources. For example, if hacker A uses domain blblbfizzly.com , we can now blacklist it. we look it up in passive dns to find ip pairs we find it matches the following IPs: 8.8.8.8 and 8.8.4.4. We can look up in th e same database for pairs with ...
EMP: A Network Management Protocol for IP
... • Simple Network Management Protocol – It can’t be deployed directly on the sensor networks • SNMP message overhead • The problem of node-failure • Requires huge Management Information Base (MIB) ...
... • Simple Network Management Protocol – It can’t be deployed directly on the sensor networks • SNMP message overhead • The problem of node-failure • Requires huge Management Information Base (MIB) ...
Chapter 15 Local Area Networks
... MAC layer receives data from LLC layer MAC control Destination MAC address Source MAC address LLC PDU – data from next layer up ...
... MAC layer receives data from LLC layer MAC control Destination MAC address Source MAC address LLC PDU – data from next layer up ...
Basic Concepts
... – In each network, the packet is carried in (encapsulated in) a frame – If there are N networks between the source and destination hosts, there will be one packet and N networks between the source and destination hosts, there will be one packet and N frames for a transmission ...
... – In each network, the packet is carried in (encapsulated in) a frame – If there are N networks between the source and destination hosts, there will be one packet and N networks between the source and destination hosts, there will be one packet and N frames for a transmission ...
Semester 1 Chapter 11 - Institute of Technology Sligo
... addresses of other devices that are connected to the same LAN. They are called Address Resolution Protocol (ARP) tables, and they map IP addresses to the corresponding MAC addresses If it lacks one or the other, the data will not pass from Layer 3 to the upper layers. In this way, MAC addresses and ...
... addresses of other devices that are connected to the same LAN. They are called Address Resolution Protocol (ARP) tables, and they map IP addresses to the corresponding MAC addresses If it lacks one or the other, the data will not pass from Layer 3 to the upper layers. In this way, MAC addresses and ...
ppt
... 2. DHCP server responds with “DHCP offer” msg 3. host requests IP address: “DHCP request” msg 4. DHCP server sends address: “DHCP ack” msg 5: DataLink Layer ...
... 2. DHCP server responds with “DHCP offer” msg 3. host requests IP address: “DHCP request” msg 4. DHCP server sends address: “DHCP ack” msg 5: DataLink Layer ...
MEDICAL LABORATORY TECHNICIAN/CLINICAL LABORATORY
... such as network technician, network administrator, systems administrator and customer support. Students are trained to design, install, configure, troubleshoot, and maintain networks. The program’s coursework includes the study of data communications, telecommunications, Windows and Linux Server adm ...
... such as network technician, network administrator, systems administrator and customer support. Students are trained to design, install, configure, troubleshoot, and maintain networks. The program’s coursework includes the study of data communications, telecommunications, Windows and Linux Server adm ...
Networking
... Switches are intelligent hubs providing dedicated connection and bandwidth between clients on a LAN. Switches are also known as "switching hubs". A switch gives any device on the network the full bandwidth instead of sharing the available bandwidth. Intelligence ensures only destination receives ...
... Switches are intelligent hubs providing dedicated connection and bandwidth between clients on a LAN. Switches are also known as "switching hubs". A switch gives any device on the network the full bandwidth instead of sharing the available bandwidth. Intelligence ensures only destination receives ...
Adhoc NUC - The Astrophotography Manual
... powered up with its power button and then operated remotely, either via a home network or an adhoc network, using Windows Remote Desktop (or similar). It should be able to be shutdown / restarted remotely and its connections to the network should be automated so that there is no need for monitor/key ...
... powered up with its power button and then operated remotely, either via a home network or an adhoc network, using Windows Remote Desktop (or similar). It should be able to be shutdown / restarted remotely and its connections to the network should be automated so that there is no need for monitor/key ...
Communication-Centric Design
... (for the average programmer) – related to N.I. problem • Power constraints will be such that only a small percentage of the transistors may be active at once! Why are 100’s of identical cores useful? • New interconnection network solutions are critical to making multi- and many-core chips work • Pow ...
... (for the average programmer) – related to N.I. problem • Power constraints will be such that only a small percentage of the transistors may be active at once! Why are 100’s of identical cores useful? • New interconnection network solutions are critical to making multi- and many-core chips work • Pow ...
NAME: Computer Science 461 Midterm Exam March 30, 2009
... lost after you reached 32,000 bytes per second, instead of just a single packet? If so, what is the next instantaneous rate TCP will send at in this example, and how long (in terms of RTTs) would it now take to reach 32,000 bytes per second again? ...
... lost after you reached 32,000 bytes per second, instead of just a single packet? If so, what is the next instantaneous rate TCP will send at in this example, and how long (in terms of RTTs) would it now take to reach 32,000 bytes per second again? ...
Basic Networking Hardware
... A local area network that transmits over the air typically in an unlicensed frequency such as the 2.4GHz band. A wireless LAN does not require lining up devices for line of sight transmission. Wireless access points (base stations) are connected to an Ethernet hub or server and transmit a radio freq ...
... A local area network that transmits over the air typically in an unlicensed frequency such as the 2.4GHz band. A wireless LAN does not require lining up devices for line of sight transmission. Wireless access points (base stations) are connected to an Ethernet hub or server and transmit a radio freq ...
21netsec
... Attacker runs masters directly via root backdoor; masters talk to zombies using ICMP echo reply • No authentication of master’s commands, but commands are encoded as 16-bit binary numbers inside ICMP packets to prevent accidental triggering • Vulnerable to connection hijacking and RST sniping ...
... Attacker runs masters directly via root backdoor; masters talk to zombies using ICMP echo reply • No authentication of master’s commands, but commands are encoded as 16-bit binary numbers inside ICMP packets to prevent accidental triggering • Vulnerable to connection hijacking and RST sniping ...
SCADA (Supervisory Control And Data Acquisition)
... more locations from which control is exercised over a computer, television broadcast, or telecommunications network.” ...
... more locations from which control is exercised over a computer, television broadcast, or telecommunications network.” ...
9 telecommunication network software design
... the transport layer in the protocol stack of each system before its relevancy can be determined. There is another issue with broadcasts: they don't cross subnets. Routers don't let broadcasts cross them-we would soon reach network saturation if routers forwarded broadcasts, so this is desired behavi ...
... the transport layer in the protocol stack of each system before its relevancy can be determined. There is another issue with broadcasts: they don't cross subnets. Routers don't let broadcasts cross them-we would soon reach network saturation if routers forwarded broadcasts, so this is desired behavi ...
Deitel & Associates, Inc.
... Transmission Control Protocol (TCP) • TCP is a connection-oriented transmission protocol – Guarantees that segments sent from a sender will arrive at the intended receiver undamaged and in correct sequence – Handles error control, congestion control, and retransmission – Allow protocols like HTTP a ...
... Transmission Control Protocol (TCP) • TCP is a connection-oriented transmission protocol – Guarantees that segments sent from a sender will arrive at the intended receiver undamaged and in correct sequence – Handles error control, congestion control, and retransmission – Allow protocols like HTTP a ...
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.