Chapter06
... The Transport Service • Why two distinct layers? – Network layer is part of communication subnet and is run by the carrier (for WAN’s). – What if network layer is unreliable, loses packets or crashes? – Users have no control over subnet and cannot poor service problems – Need to put a layer on top ...
... The Transport Service • Why two distinct layers? – Network layer is part of communication subnet and is run by the carrier (for WAN’s). – What if network layer is unreliable, loses packets or crashes? – Users have no control over subnet and cannot poor service problems – Need to put a layer on top ...
IP packet filtering Packet filtering
... • Allows for more complex policies based on current state of connections between two machines. – Let incoming UDP packets through only if they are responses to outgoing UDP packets you have seen. – Accept TCP packets with SYN set only as part of TCP connection initiation. ...
... • Allows for more complex policies based on current state of connections between two machines. – Let incoming UDP packets through only if they are responses to outgoing UDP packets you have seen. – Accept TCP packets with SYN set only as part of TCP connection initiation. ...
ppt
... typically requested via a Web browser; e.g. RealPlayer; typical functions: • Decompression • Jitter removal • Error correction: use redundant packets to be used for reconstruction of original stream • GUI for user control ...
... typically requested via a Web browser; e.g. RealPlayer; typical functions: • Decompression • Jitter removal • Error correction: use redundant packets to be used for reconstruction of original stream • GUI for user control ...
my_s25
... packets of data, called datagrams, from one computer to another with no guarantees about their order of delivery or arrival at all. UDP is not connection-based like TCP. – This is analogous to the sending a series of letters through the postal service. – Used for applications that cannot afford or d ...
... packets of data, called datagrams, from one computer to another with no guarantees about their order of delivery or arrival at all. UDP is not connection-based like TCP. – This is analogous to the sending a series of letters through the postal service. – Used for applications that cannot afford or d ...
ppt
... ICMP messages include portion of IP packet that triggered the error (if applicable) in their payload ...
... ICMP messages include portion of IP packet that triggered the error (if applicable) in their payload ...
1. Foundation
... • Remote Procedure Call (RPC): Provide services to transactionbased applications. • Real Time Protocol (RTP): Provide services for transporting real-time data over UDP. ...
... • Remote Procedure Call (RPC): Provide services to transactionbased applications. • Real Time Protocol (RTP): Provide services for transporting real-time data over UDP. ...
Internet & Web Protocols
... can be used for many tasks, such as name servers & distributed object management systems underlying language of the Web HTTP/1.0 allowed only connectionless message passing each request/response required a new connection to download a page with images required multiple connections can overlo ...
... can be used for many tasks, such as name servers & distributed object management systems underlying language of the Web HTTP/1.0 allowed only connectionless message passing each request/response required a new connection to download a page with images required multiple connections can overlo ...
Protocols Notes
... can be used for many tasks, such as name servers & distributed object management systems underlying language of the Web HTTP/1.0 allowed only connectionless message passing each request/response required a new connection to download a page with images required multiple connections can overlo ...
... can be used for many tasks, such as name servers & distributed object management systems underlying language of the Web HTTP/1.0 allowed only connectionless message passing each request/response required a new connection to download a page with images required multiple connections can overlo ...
Transport Control Protocol (TCP) & Applications
... just one segment – if this is not lost, doubles data size and sends two segments – continues exponential growth until half receiver’s window size is reached then slows rate of increase ...
... just one segment – if this is not lost, doubles data size and sends two segments – continues exponential growth until half receiver’s window size is reached then slows rate of increase ...
slides - Georgia Tech
... Server: no need for parsing at all. Expensive if you’re sending lots of small files though (need to set up, tear down socket for each one) ...
... Server: no need for parsing at all. Expensive if you’re sending lots of small files though (need to set up, tear down socket for each one) ...
ppt
... Close looks a bit complicated because both sides have to close to be done Conceptually, there are two one-way connections Don’t want to hang around forever if other end crashes ...
... Close looks a bit complicated because both sides have to close to be done Conceptually, there are two one-way connections Don’t want to hang around forever if other end crashes ...
Media: Voice and Video in your SIP Environment
... – A large frame is fragmented into a series of packets for transmission over network – I-Frame fragmentation • Receiver must receive all fragments to properly reconstruct frame ...
... – A large frame is fragmented into a series of packets for transmission over network – I-Frame fragmentation • Receiver must receive all fragments to properly reconstruct frame ...
Voice over Mobile IP
... [3] M. Handley et al., “SIP: Session Initiation Protocol,” IETF RFC 2543, March 1999. [4] C. Perkins, “IP Mobility Support,” RFC 2002, IETF, October 1996. [5] Melody Moh, Gregorie Berquin, and Yanjun Chen, “Mobile IP Telephony: Mobility Support of SIP,” Eighth International Conference on Computer Co ...
... [3] M. Handley et al., “SIP: Session Initiation Protocol,” IETF RFC 2543, March 1999. [4] C. Perkins, “IP Mobility Support,” RFC 2002, IETF, October 1996. [5] Melody Moh, Gregorie Berquin, and Yanjun Chen, “Mobile IP Telephony: Mobility Support of SIP,” Eighth International Conference on Computer Co ...
PPT - Pages
... Sender will be informed if packet doesn’t make it Packets will arrive in same order sent Just one copy of packet will arrive ...
... Sender will be informed if packet doesn’t make it Packets will arrive in same order sent Just one copy of packet will arrive ...
Network security
... Result: flood victim’s machine/network with UDP replies Solution: filtering out UDP echo requests (or anything else that might generate a response) sent to a broadcast addresses ...
... Result: flood victim’s machine/network with UDP replies Solution: filtering out UDP echo requests (or anything else that might generate a response) sent to a broadcast addresses ...
AshkanPaya
... require reliable data stream service, may use the User Datagram Protocol (UDP), which provides a datagram service that emphasizes reduced latency over reliability. Applications like Skype, ooVoo and almost all of the video/audio stream based applications using UDP protocol. Packet loss is not import ...
... require reliable data stream service, may use the User Datagram Protocol (UDP), which provides a datagram service that emphasizes reduced latency over reliability. Applications like Skype, ooVoo and almost all of the video/audio stream based applications using UDP protocol. Packet loss is not import ...
投影片 1
... moving speeds of vehicles. • As such, a unicast routing path set up between a pair of vehicles breaks frequently. ...
... moving speeds of vehicles. • As such, a unicast routing path set up between a pair of vehicles breaks frequently. ...
Voice Over IP
... G.729 (8 kbps) and G.723.3 (both 6.4 and 5.3 kbps). MPEG 1 layer 3, also known as MP3, is another popular compression technique for music. On the other hand, MPEG series and H.261 are popular video compression standards used in the Internet. ...
... G.729 (8 kbps) and G.723.3 (both 6.4 and 5.3 kbps). MPEG 1 layer 3, also known as MP3, is another popular compression technique for music. On the other hand, MPEG series and H.261 are popular video compression standards used in the Internet. ...
Data Modeling - Hiram College
... – If the buffer is full, the packet is dropped (packet loss) – Packet is sent on the outgoing link (to the next router) ...
... – If the buffer is full, the packet is dropped (packet loss) – Packet is sent on the outgoing link (to the next router) ...
answers - Princeton CS
... send an equal number of packets. 5. Which of the following are true: a. An application calling recv on a TCP socket will never get data out of order from the network. b. Ethernet allows for organizations to route traffic hierarchically to end hosts. c. Ethernet switches, like IP routers, use a form ...
... send an equal number of packets. 5. Which of the following are true: a. An application calling recv on a TCP socket will never get data out of order from the network. b. Ethernet allows for organizations to route traffic hierarchically to end hosts. c. Ethernet switches, like IP routers, use a form ...
Chapter 04 Modern Applications
... • Terminates with the zero length octet for null label of root ...
... • Terminates with the zero length octet for null label of root ...
Server
... Connection: Keep-Alive\r\n User-Agent: Mozilla/4.07 [en] (X11; I; Linux 2.0.36 i686)\r\n Host: ninja.cs.berkeley.edu:5556\r\n Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png, */*\r\n Accept-Encoding: gzip\r\n Accept-Language: en\r\n Accept-Charset: iso-8859-1,*,utf-8\r\n \r\n ...
... Connection: Keep-Alive\r\n User-Agent: Mozilla/4.07 [en] (X11; I; Linux 2.0.36 i686)\r\n Host: ninja.cs.berkeley.edu:5556\r\n Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png, */*\r\n Accept-Encoding: gzip\r\n Accept-Language: en\r\n Accept-Charset: iso-8859-1,*,utf-8\r\n \r\n ...
Chapter 04 Modern Applications
... • Terminates with the zero length octet for null label of root ...
... • Terminates with the zero length octet for null label of root ...
Slides for Chapter 3: Networking and Internetworking
... Connectionless (datagram-based) Best-effort delivery (unreliable service) packets can be lost, delayed, duplicated, delivered out of order. ...
... Connectionless (datagram-based) Best-effort delivery (unreliable service) packets can be lost, delayed, duplicated, delivered out of order. ...