Cisco Netacad Chapter 10 - Mr. Schneemann`s Web Page
... Objects will be able to collect, receive and send information to users and other connected objects. As shown in the figure, this new wave in Internet development is known as the Internet of Things! ...
... Objects will be able to collect, receive and send information to users and other connected objects. As shown in the figure, this new wave in Internet development is known as the Internet of Things! ...
Lecture 35
... • Priority field: distinguishes between packets that can be buffered/delayed vs. packets that must either be sent immediately or discarded (and in-between cases) • Flow label: allows source-destination pairs to set up the equivalent of virtual circuits with may (for example) have defined quality-of- ...
... • Priority field: distinguishes between packets that can be buffered/delayed vs. packets that must either be sent immediately or discarded (and in-between cases) • Flow label: allows source-destination pairs to set up the equivalent of virtual circuits with may (for example) have defined quality-of- ...
******* 1 - DistributedSys
... 3- How do the applications discussed in exercise 1 involve the partitioning and/or replication (or caching) of data amongst servers? Web: Partitioning :Web page masters are held in a file system at a single server. The information on the web as a whole is therefore partitioned amongst many web serv ...
... 3- How do the applications discussed in exercise 1 involve the partitioning and/or replication (or caching) of data amongst servers? Web: Partitioning :Web page masters are held in a file system at a single server. The information on the web as a whole is therefore partitioned amongst many web serv ...
NAME: Computer Science 461 Midterm Exam March 30, 2009
... For this question, there is a single client communicating with a single server using TCP. The client sends a very small amount of data using the send() function, and the server receives the data with a recv() call. Each of the following scenarios shows a different order in which the socket calls are ...
... For this question, there is a single client communicating with a single server using TCP. The client sends a very small amount of data using the send() function, and the server receives the data with a recv() call. Each of the following scenarios shows a different order in which the socket calls are ...
Transportation Layer (1)
... • Transport: which entity you will try to address? – want to talk to one process on host 128.2.222.85. – what to do use? process ID? how many bits? What would be the problem when using the pid as transport layer identifier? ...
... • Transport: which entity you will try to address? – want to talk to one process on host 128.2.222.85. – what to do use? process ID? how many bits? What would be the problem when using the pid as transport layer identifier? ...
CSCI6268L10 - Computer Science
... • IP is “best effort” – There is no tracking of packets – If something is dropped… oh well – If one fragment is dropped, many transport layer protocols (like TCP) will consider the whole thing lost and not ACK – This seems bad, but it’s one of the biggest successes of IP – UDP is IP with ports, so i ...
... • IP is “best effort” – There is no tracking of packets – If something is dropped… oh well – If one fragment is dropped, many transport layer protocols (like TCP) will consider the whole thing lost and not ACK – This seems bad, but it’s one of the biggest successes of IP – UDP is IP with ports, so i ...
CSCI6268L10 - Computer Science
... • IP is “best effort” – There is no tracking of packets – If something is dropped… oh well – If one fragment is dropped, many transport layer protocols (like TCP) will consider the whole thing lost and not ACK – This seems bad, but it’s one of the biggest successes of IP – UDP is IP with ports, so i ...
... • IP is “best effort” – There is no tracking of packets – If something is dropped… oh well – If one fragment is dropped, many transport layer protocols (like TCP) will consider the whole thing lost and not ACK – This seems bad, but it’s one of the biggest successes of IP – UDP is IP with ports, so i ...
CSCI6268L19
... • IP is “best effort” – There is no tracking of packets – If something is dropped… oh well – If one fragment is dropped, many transport layer protocols (like TCP) will consider the whole thing lost and not ACK – This seems bad, but it’s one of the biggest successes of IP – UDP is IP with ports, so i ...
... • IP is “best effort” – There is no tracking of packets – If something is dropped… oh well – If one fragment is dropped, many transport layer protocols (like TCP) will consider the whole thing lost and not ACK – This seems bad, but it’s one of the biggest successes of IP – UDP is IP with ports, so i ...
北京大学软件学院模板 - Intel® Developer Zone
... • D-Bus is a system for interprocess communication(IPC) – Low latency: it is designed to avoid round trips and allow asynchronous operation – Low head: it use a binary protocol and does not have to convert to and from a text format such as XML – Easy to use: it works in terms of message rather than ...
... • D-Bus is a system for interprocess communication(IPC) – Low latency: it is designed to avoid round trips and allow asynchronous operation – Low head: it use a binary protocol and does not have to convert to and from a text format such as XML – Easy to use: it works in terms of message rather than ...
Lecture3
... TLS Record Protocol • TLS Record protocol provides – Privacy service through secret key encryption • Encryption algorithm is negotiated at session setup • Secret keys generated per connection using another protocol such as Handshake protocol ...
... TLS Record Protocol • TLS Record protocol provides – Privacy service through secret key encryption • Encryption algorithm is negotiated at session setup • Secret keys generated per connection using another protocol such as Handshake protocol ...
PowerPoint
... • Header length (number of 4-byte words) • Header checksum (error check on header) • Source and destination IP addresses • Upper-level protocol (e.g., TCP, UDP) • Length in bytes (up to 65,535 bytes) ...
... • Header length (number of 4-byte words) • Header checksum (error check on header) • Source and destination IP addresses • Upper-level protocol (e.g., TCP, UDP) • Length in bytes (up to 65,535 bytes) ...
Lecture 6: Vector
... – IP makes best effort to deliver; TCP guarantees delivery – TCP/IP used even when communicating locally: NFS uses IP even though communicating across homogeneous LAN ...
... – IP makes best effort to deliver; TCP guarantees delivery – TCP/IP used even when communicating locally: NFS uses IP even though communicating across homogeneous LAN ...
UDP
... IP datagram format IP protocol version number header length (bytes) “type” of data max number remaining hops (decremented at each router) upper layer protocol to deliver payload to ...
... IP datagram format IP protocol version number header length (bytes) “type” of data max number remaining hops (decremented at each router) upper layer protocol to deliver payload to ...
Communication - Computer Information Systems
... Intel Pentium number their bytes from right to left Sun SPARC number their bytes from left to right ...
... Intel Pentium number their bytes from right to left Sun SPARC number their bytes from left to right ...
Remote Procedure Call Implementations
... Identification field same for each fragment Fragment offset identifies what bit it is “More Fragments” flag set in all but last fragment ...
... Identification field same for each fragment Fragment offset identifies what bit it is “More Fragments” flag set in all but last fragment ...
pdf
... – a diskless workstation: needs all bandwidth to transfer a page, so can’t reserve it – circuit switching may have high cost to set up connection ...
... – a diskless workstation: needs all bandwidth to transfer a page, so can’t reserve it – circuit switching may have high cost to set up connection ...
The Internet Protocol - University of Calgary
... “The decision to put a 32-bit address space on there was the result of a year's battle among a bunch of engineers who couldn't make up their minds about 32, 128, or variable-length. And after a year of fighting, I said--I'm now at ARPA, I'm running the program, I'm paying for this stuff, I'm using A ...
... “The decision to put a 32-bit address space on there was the result of a year's battle among a bunch of engineers who couldn't make up their minds about 32, 128, or variable-length. And after a year of fighting, I said--I'm now at ARPA, I'm running the program, I'm paying for this stuff, I'm using A ...
Protocols and Interaction Models for Web Services
... Sender’s window size can’t exceed this or receiver will have buffer overflow and packets will be lost Network congestion causes some packets to be dropped at some router or to not be ack’d before a timeout occurs Sender then reduces window size to Wc , which reduces its transmission rate and atte ...
... Sender’s window size can’t exceed this or receiver will have buffer overflow and packets will be lost Network congestion causes some packets to be dropped at some router or to not be ack’d before a timeout occurs Sender then reduces window size to Wc , which reduces its transmission rate and atte ...
Network Physics
... • Speed of transfer for “acknowledge” transport :PacketSize / (2*latency) • Additional latency when packet has been drop • Example: 1450 byte packets on a link that can handle 2500 bytes / s of data: Next Packet Time = Current Time + (1450 bytes + 28 byte UDP header) / 2500 = Current Time + .5912 se ...
... • Speed of transfer for “acknowledge” transport :PacketSize / (2*latency) • Additional latency when packet has been drop • Example: 1450 byte packets on a link that can handle 2500 bytes / s of data: Next Packet Time = Current Time + (1450 bytes + 28 byte UDP header) / 2500 = Current Time + .5912 se ...
Introduction - Suraj @ LUMS
... Reliable Delivery (cont.) • Fault management based on execution semantics – at-least-once: idempotent – at-most-once: session – exactly-once ...
... Reliable Delivery (cont.) • Fault management based on execution semantics – at-least-once: idempotent – at-most-once: session – exactly-once ...
Lecture 1
... • Bit 0 is reserved and not used • Bit 1: DF – Don’t Fragment when set to 1 – What if fragmentation is needed? A router will send back an ICMP unreachable – need to fragment packet to the source with the size of the maximum MTU ...
... • Bit 0 is reserved and not used • Bit 1: DF – Don’t Fragment when set to 1 – What if fragmentation is needed? A router will send back an ICMP unreachable – need to fragment packet to the source with the size of the maximum MTU ...
9-0 Internet Protocol Attacks and some Defenses
... • Responder’s state (IP addresses and ports of the connection) is stored in a cookie and sent to initiator • After initiator responds, cookie is regenerated and compared with the cookie returned by the initiator slide 15 ...
... • Responder’s state (IP addresses and ports of the connection) is stored in a cookie and sent to initiator • After initiator responds, cookie is regenerated and compared with the cookie returned by the initiator slide 15 ...
Lecture27
... A server does a passive open. A client does an active open The two parties have to agree upon on a set of parameters the starting numbers the two sides plan to use for their respective byte streams. Three-Way Handshake Connection termination is symmetric, each side has to close the connectio ...
... A server does a passive open. A client does an active open The two parties have to agree upon on a set of parameters the starting numbers the two sides plan to use for their respective byte streams. Three-Way Handshake Connection termination is symmetric, each side has to close the connectio ...