Evolution of PC_LANS and Networks
... Analogous to the postal service; package can take several possible routes to reach destination Network information is broken into packets Transmission resources are shared by many connections. More than one path to destination Each transmission unit must contain addressing information More efficient ...
... Analogous to the postal service; package can take several possible routes to reach destination Network information is broken into packets Transmission resources are shared by many connections. More than one path to destination Each transmission unit must contain addressing information More efficient ...
Link Layer Part II
... 7 bytes with pattern 10101010 followed by one byte with pattern 10101011 used to synchronize receiver, sender clock rates ...
... 7 bytes with pattern 10101010 followed by one byte with pattern 10101011 used to synchronize receiver, sender clock rates ...
6.4.3.3 Packet Tracer - EdTechnology, educational technology
... 1) How many serial interfaces are there on R1 and R2? Each router has 2 serial interfaces. 2) How many Ethernet interfaces are there on R1 and R2? R1 has 6 Ethernet interfaces and R2 has 2 Ethernet interfaces. 3) Are all the Ethernet interfaces on R1 the same? If no, explain the difference(s). No th ...
... 1) How many serial interfaces are there on R1 and R2? Each router has 2 serial interfaces. 2) How many Ethernet interfaces are there on R1 and R2? R1 has 6 Ethernet interfaces and R2 has 2 Ethernet interfaces. 3) Are all the Ethernet interfaces on R1 the same? If no, explain the difference(s). No th ...
The Internet and the Web
... an IP address is a number, written as a dotted sequence such as 147.134.2.84 each computer is assigned an IP address by its Internet Service Provider (ISP) some ISPs (e.g., AOL, most colleges) maintain a pool of IP addresses and assign them dynamically to computers each time they connect ...
... an IP address is a number, written as a dotted sequence such as 147.134.2.84 each computer is assigned an IP address by its Internet Service Provider (ISP) some ISPs (e.g., AOL, most colleges) maintain a pool of IP addresses and assign them dynamically to computers each time they connect ...
Alternate Study Guide
... How IP Addresses and Subnet Masks Interact What does the subnet mask signify? Which part of the IP address is network and which part is host What do the 1s in the subnet mask represent? The network portion How do you calculate the number of hosts Take the number 2 to the power that can be on a netwo ...
... How IP Addresses and Subnet Masks Interact What does the subnet mask signify? Which part of the IP address is network and which part is host What do the 1s in the subnet mask represent? The network portion How do you calculate the number of hosts Take the number 2 to the power that can be on a netwo ...
CCNA2 Module 9
... The ping command can be used to confirm basic network connectivity To use extended ping, type ping at the command line, then press the Enter key without entering an IP address M. Menelaou ...
... The ping command can be used to confirm basic network connectivity To use extended ping, type ping at the command line, then press the Enter key without entering an IP address M. Menelaou ...
Guide to Networking Essentials, Fifth Edition
... automatic link aggregation — A feature of some NICs that adds the bandwidth of two installed NICs together, resulting in a higher aggregate bandwidth. autonegotiation — The process by which a NIC driver automatically selects an operating mode (speed and duplex mode). To make this selection, the ...
... automatic link aggregation — A feature of some NICs that adds the bandwidth of two installed NICs together, resulting in a higher aggregate bandwidth. autonegotiation — The process by which a NIC driver automatically selects an operating mode (speed and duplex mode). To make this selection, the ...
Basic Networking, Part TWO
... IPv6 originated the Internet Protocol Security(IPsec) tools, which can improve the security of Internet connections IPv6 has streamlined some data structures, enabling quicker processing by routers ...
... IPv6 originated the Internet Protocol Security(IPsec) tools, which can improve the security of Internet connections IPv6 has streamlined some data structures, enabling quicker processing by routers ...
and packet switching - Computer Science Division
... – client host requests, receives service from always-on server – e.g. Web browser/server; email client/server ...
... – client host requests, receives service from always-on server – e.g. Web browser/server; email client/server ...
XYZ proposal to SP100
... Several proposals put a limit of 256 nodes per backbone connection (gateway) Many implementations limit number of descendents per router Don’t bake these limitations into the standard!! With tunneling, products will support thousands of nodes per gateway Let the Network Manager handle subnetting dec ...
... Several proposals put a limit of 256 nodes per backbone connection (gateway) Many implementations limit number of descendents per router Don’t bake these limitations into the standard!! With tunneling, products will support thousands of nodes per gateway Let the Network Manager handle subnetting dec ...
Job Class: 158818 Rev: 04/15 Exempt Page: 1
... Installs, upgrades, and supports network hardware and software needed to manage the campus enterprise backbone network. Installs, upgrades, and supports the campus enterprise wireless network. Implements, upgrades, and monitor the campus virtual private networking services. Works with Systems Admini ...
... Installs, upgrades, and supports network hardware and software needed to manage the campus enterprise backbone network. Installs, upgrades, and supports the campus enterprise wireless network. Implements, upgrades, and monitor the campus virtual private networking services. Works with Systems Admini ...
CS219: Advanced Topics in Internet Research
... • Scenario 2: different devices for different networks • Scenario 3: user docks a laptop, works in a networked mode for a while, then disconnects and works in the standalone mode for a while, and then ...
... • Scenario 2: different devices for different networks • Scenario 3: user docks a laptop, works in a networked mode for a while, then disconnects and works in the standalone mode for a while, and then ...
Layer Number Layer Designation Function Responsibility Page
... electrical, mechanical, procedural, and functional requirements for activating, maintaining, and deactivating a physical link between end systems ...
... electrical, mechanical, procedural, and functional requirements for activating, maintaining, and deactivating a physical link between end systems ...
Systems Area: OS and Networking
... Packet-Switching vs. Circuit-Switching • Most important advantage of packet-switching over circuit switching: ability to exploit statistical multiplexing: – Efficient bandwidth usage; ratio between peek and average rate is 3:1 for audio, and 15:1 for data traffic ...
... Packet-Switching vs. Circuit-Switching • Most important advantage of packet-switching over circuit switching: ability to exploit statistical multiplexing: – Efficient bandwidth usage; ratio between peek and average rate is 3:1 for audio, and 15:1 for data traffic ...
PDF
... block. If three consecutive errors are performed by the same faulty routing logic block, a permanent error is considered. In this Situation, a specific data packet is generated towards the switch generating the routing errors. This specific one-flit data packet indicates the faulty input ports of th ...
... block. If three consecutive errors are performed by the same faulty routing logic block, a permanent error is considered. In this Situation, a specific data packet is generated towards the switch generating the routing errors. This specific one-flit data packet indicates the faulty input ports of th ...
Client/Server Networks
... that runs a network, steering information between computers and managing security and users • Packet-switching - occurs when the sending computer divides a message into a number of efficiently sized units called packets, each of which contains the address of the destination computer ...
... that runs a network, steering information between computers and managing security and users • Packet-switching - occurs when the sending computer divides a message into a number of efficiently sized units called packets, each of which contains the address of the destination computer ...
MPLS PPT
... MPLS is a highly scalable, protocol agnostic, data-carrying mechanism. In an MPLS network, data packets are assigned labels. Packetforwarding decisions are made solely on the contents of this label, without the need to examine the packet itself. This allows one to create end-to-end circuits across a ...
... MPLS is a highly scalable, protocol agnostic, data-carrying mechanism. In an MPLS network, data packets are assigned labels. Packetforwarding decisions are made solely on the contents of this label, without the need to examine the packet itself. This allows one to create end-to-end circuits across a ...
Introduction to Routing
... Deferent metrics like number of hops, geographical distance, the mean queuing and transmission delay of router can be used. In the most general case, the labels on the arcs could be computed as a function of the distance, ...
... Deferent metrics like number of hops, geographical distance, the mean queuing and transmission delay of router can be used. In the most general case, the labels on the arcs could be computed as a function of the distance, ...
test 1 - answer
... + Link layer retransmissions avoid having to retransmit over the entire path. Transport and application layer retransmissions must be sent over the entire path, thus incurring higher latency and wasting bandwidth. + Link layer retransmissions can hide non-congestion losses from higher layer protocol ...
... + Link layer retransmissions avoid having to retransmit over the entire path. Transport and application layer retransmissions must be sent over the entire path, thus incurring higher latency and wasting bandwidth. + Link layer retransmissions can hide non-congestion losses from higher layer protocol ...
Exam Paper Stationery - University of East Anglia
... -54. (a)(i) The data link layer of the OSI seven layer reference model can employ forward error correction (FEC) or backward error correction (BEC) to reduce the effect of errors that occur in transmission. Explain the operation and differences between FEC and BEC and comment on their effectiveness ...
... -54. (a)(i) The data link layer of the OSI seven layer reference model can employ forward error correction (FEC) or backward error correction (BEC) to reduce the effect of errors that occur in transmission. Explain the operation and differences between FEC and BEC and comment on their effectiveness ...
Slides for lecture 26
... – E.g., consider a user connecting to a website from a café (over a wireless network) – End-to-end encryption might be unavailable (e.g., if website does not support encryption) – Eavesdropping on Internet backbone less likely than eavesdropping on wireless link in café – Encrypt link from user to w ...
... – E.g., consider a user connecting to a website from a café (over a wireless network) – End-to-end encryption might be unavailable (e.g., if website does not support encryption) – Eavesdropping on Internet backbone less likely than eavesdropping on wireless link in café – Encrypt link from user to w ...
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.