Lecture #14 - Wayne State University
... upper layer protocol to deliver payload to 6 for tcp, 17 for udp ...
... upper layer protocol to deliver payload to 6 for tcp, 17 for udp ...
ppt
... • UDP uses a connectionless communication paradigm. – An application using UDP does not need to pre-establish communication before sending data. • Are you ready to receive a message? • You receive flyers in the post at home from companies that never contacted you beforehand to ask if you are ready t ...
... • UDP uses a connectionless communication paradigm. – An application using UDP does not need to pre-establish communication before sending data. • Are you ready to receive a message? • You receive flyers in the post at home from companies that never contacted you beforehand to ask if you are ready t ...
Security in network
... tap a wire and read radiated signals without making physical contact with cable. • A device called packet sniffer can retrieve all packets on the LAN ...
... tap a wire and read radiated signals without making physical contact with cable. • A device called packet sniffer can retrieve all packets on the LAN ...
Presentation
... employ heterogeneous network technologies » P2P storage and content delivery that doesn’t using endpoint storage or bandwidth ...
... employ heterogeneous network technologies » P2P storage and content delivery that doesn’t using endpoint storage or bandwidth ...
2003 - Msjc
... NOT addressed specifically to their MAC address In order for device to receive all messages being transmitted on a network segment it must be set to “Promiscuous Mode” ...
... NOT addressed specifically to their MAC address In order for device to receive all messages being transmitted on a network segment it must be set to “Promiscuous Mode” ...
3rd Edition: Chapter 3
... using eBGP session between 3a and 1c, AS3 sends prefix reachability info to AS1. 1c can then use iBGP do distribute new prefix info to all routers in AS1 1b can then re-advertise new reachability info to AS2 over 1b-to2a eBGP session ...
... using eBGP session between 3a and 1c, AS3 sends prefix reachability info to AS1. 1c can then use iBGP do distribute new prefix info to all routers in AS1 1b can then re-advertise new reachability info to AS2 over 1b-to2a eBGP session ...
SAINT: Secure and Active Internetworking
... To date: Analytical model of sender-initiated collision-avoidance protocols in ad hoc networks with omni antennas; collision-free MAC protocols based on 2-hop neighborhood; basic hybrid routing using link-state information. 6 months: Extensions of analytical model for collision-avoidance to address ...
... To date: Analytical model of sender-initiated collision-avoidance protocols in ad hoc networks with omni antennas; collision-free MAC protocols based on 2-hop neighborhood; basic hybrid routing using link-state information. 6 months: Extensions of analytical model for collision-avoidance to address ...
AT16827: TCP/IP Server-Client with CycloneTCP
... utilizes the underlying layers. There is no overlap in functions between the layers. For example, consider the case of a web browser session. The HTTP request from application layer will be passed down to TCP layer. It will construct a TCP packet consisting of a TCP header and TCP data. The TCP head ...
... utilizes the underlying layers. There is no overlap in functions between the layers. For example, consider the case of a web browser session. The HTTP request from application layer will be passed down to TCP layer. It will construct a TCP packet consisting of a TCP header and TCP data. The TCP head ...
Document
... – Basic queueing gives no “quality of service” (QoS) E.g., bandwidth (capacity), delay, loss, etc. – No service differentiation possible – Router processing speeds become bottleneck I.e., “Layer 3” IP address-lookup ( O(log2(N) ) ...
... – Basic queueing gives no “quality of service” (QoS) E.g., bandwidth (capacity), delay, loss, etc. – No service differentiation possible – Router processing speeds become bottleneck I.e., “Layer 3” IP address-lookup ( O(log2(N) ) ...
An End-to-End Mobility Architecture for the NGI
... • Cerf’s comment from DoD Internet paper: “If a host were to move, its network (and host) addresses would change and this would affect the connection identifiers used by the TCP. This is rather like a problem called "dynamic reconnection" which has plagued network designers since the inception of th ...
... • Cerf’s comment from DoD Internet paper: “If a host were to move, its network (and host) addresses would change and this would affect the connection identifiers used by the TCP. This is rather like a problem called "dynamic reconnection" which has plagued network designers since the inception of th ...
Streaming infrastructure
... What is out there? Internet broadcasts (Audio and Audio/Video) are now common practice Some are ...
... What is out there? Internet broadcasts (Audio and Audio/Video) are now common practice Some are ...
1 slide per page
... Client browser requests web page from web server Web server provides page as response Network Time Protocol (NTP) Client system requests time from time server Time server provides time as a response Computer Networks — Hadassah College — Fall 2012 ...
... Client browser requests web page from web server Web server provides page as response Network Time Protocol (NTP) Client system requests time from time server Time server provides time as a response Computer Networks — Hadassah College — Fall 2012 ...
CS61C / CS150 in the News Review: I/O Working with real devices
... – Early SSDs had severe reliability issues due to poorly implemented firmware – More in CS162 ...
... – Early SSDs had severe reliability issues due to poorly implemented firmware – More in CS162 ...
View File
... If the hosts are on different networks, the sending host will send the packet to a router which routes the packet to the destination network ...
... If the hosts are on different networks, the sending host will send the packet to a router which routes the packet to the destination network ...
IEEE Std. 802.15.4
... Network Beacon—Transmitted by network coordinator. Contains network information, frame structure and notification of pending node messages. Beacon Extension Period—Space reserved for beacon growth due to pending node messages Contention Period—Access by any node using CSMA-CA Guaranteed Time Slot—Re ...
... Network Beacon—Transmitted by network coordinator. Contains network information, frame structure and notification of pending node messages. Beacon Extension Period—Space reserved for beacon growth due to pending node messages Contention Period—Access by any node using CSMA-CA Guaranteed Time Slot—Re ...
A predictive rapid mobility extensions for Mobile-IP
... developed by Widmer [Wid00] as an extension for ns • The NOAH agent has a simplified version of propagation model. • The NOAH agent has a “improved” handoff mechanism and assumes GPS information – NOAH->getX() and NOAH->getY( ) methods – Mobile-IP with NOAH outperforms its predecessor. ...
... developed by Widmer [Wid00] as an extension for ns • The NOAH agent has a simplified version of propagation model. • The NOAH agent has a “improved” handoff mechanism and assumes GPS information – NOAH->getX() and NOAH->getY( ) methods – Mobile-IP with NOAH outperforms its predecessor. ...
ppt - ICEBERG Project
... • Goal: Flexible networking protocols in support of error resilient video codecs • GSM RLP: reliable data delivery on radio link – Issue: reliability versus delay ...
... • Goal: Flexible networking protocols in support of error resilient video codecs • GSM RLP: reliable data delivery on radio link – Issue: reliability versus delay ...
CSE 524: Lecture 17
... – NIDS could see a different stream of packets than host – Protocol implementation ambiguities • Different protocol stacks have different behavior ...
... – NIDS could see a different stream of packets than host – Protocol implementation ambiguities • Different protocol stacks have different behavior ...
ch05 - The University of Texas at Dallas
... • Giving addresses to clients (automatically) only when they are logged in to a network – Eliminates permanent addresses to clients – When the computer is moved to another location, its new IP address is assigned automatically – Makes efficient use of IP address space ...
... • Giving addresses to clients (automatically) only when they are logged in to a network – Eliminates permanent addresses to clients – When the computer is moved to another location, its new IP address is assigned automatically – Makes efficient use of IP address space ...
iso-osi protocols - Home - KSU Faculty Member websites
... The APPLICATION layer is the top one; to the user it’s connected. It is where the transaction is begun, or sometimes just rejected The user may make many demands, for lots of different things. This layer that handles commands, and output bells it rings Saad Haj Bakry ...
... The APPLICATION layer is the top one; to the user it’s connected. It is where the transaction is begun, or sometimes just rejected The user may make many demands, for lots of different things. This layer that handles commands, and output bells it rings Saad Haj Bakry ...
Application Layer Functionality and Protocols
... and a server. An FTP client is an application that runs on a computer that is used to push and pull files from a server running the FTP daemon (FTPd). The client establishes the first connection to the server on TCP port 21. This connection is used for control traffic, consisting of client command ...
... and a server. An FTP client is an application that runs on a computer that is used to push and pull files from a server running the FTP daemon (FTPd). The client establishes the first connection to the server on TCP port 21. This connection is used for control traffic, consisting of client command ...
3rd Edition: Chapter 4 - University of Delaware
... Some machine is confused (it didn’t send a TCP-SYN) TCP-RST with IP-ID = X + 1 ...
... Some machine is confused (it didn’t send a TCP-SYN) TCP-RST with IP-ID = X + 1 ...
Authentication Key - Pravin Shetty > Resume
... Performs a double-reverse lookup of the IP address to make sure the DNS entries for the IP address match the hostname. Logs the result with syslog. This provides a way to log services that are normally not logged, e.g., finger and systat. Optionally run a command, e.g., run finger to get a list o ...
... Performs a double-reverse lookup of the IP address to make sure the DNS entries for the IP address match the hostname. Logs the result with syslog. This provides a way to log services that are normally not logged, e.g., finger and systat. Optionally run a command, e.g., run finger to get a list o ...
Internet protocol suite
The Internet protocol suite is the computer networking model and set of communications protocols used on the Internet and similar computer networks. It is commonly known as TCP/IP, because among many protocols, the Transmission Control Protocol (TCP) and the Internet Protocol (IP) is the accepted and most widely used protocol in Internet. Often also called the Internet model, it was originally also known as the DoD model, because the development of the networking model was funded by DARPA, an agency of the United States Department of Defense.TCP/IP provides end-to-end connectivity specifying how data should be packetized, addressed, transmitted, routed and received at the destination. This functionality is organized into four abstraction layers which are used to sort all related protocols according to the scope of networking involved. From lowest to highest, the layers are the link layer, containing communication technologies for a single network segment (link); the internet layer, connecting hosts across independent networks, thus establishing internetworking; the transport layer handling host-to-host communication; and the application layer, which provides process-to-process application data exchange.The TCP/IP model and related protocol models are maintained by the Internet Engineering Task Force (IETF).