
csci5211: Computer Networks and Data Communications
... – packets: packet switching – calls: circuit switching communication links – fiber, copper, radio, … Different links transmit data with different transmission speed measured in bit/sec ...
... – packets: packet switching – calls: circuit switching communication links – fiber, copper, radio, … Different links transmit data with different transmission speed measured in bit/sec ...
The Network Layer
... • The graph-theoretic routing problem – Given a graph, with vertices (switches), edges (links), and edge costs (cost of sending on that link) – Find the least cost path between any two nodes • Path cost = (cost of edges in path) ...
... • The graph-theoretic routing problem – Given a graph, with vertices (switches), edges (links), and edge costs (cost of sending on that link) – Find the least cost path between any two nodes • Path cost = (cost of edges in path) ...
Internet Addressing A Brief Introduction and History
... – a routing portion, known as the network part – a name portion known as the host part ...
... – a routing portion, known as the network part – a name portion known as the host part ...
Network Security Topologies
... as tightly controlled as the network’s interior. Used by companies that want to host its own Internet services, without sacrificing unauthorized access to it’s private network. Sits between the Internet and an internal network’s line of defense, and is usually some combination of firewalls and b ...
... as tightly controlled as the network’s interior. Used by companies that want to host its own Internet services, without sacrificing unauthorized access to it’s private network. Sits between the Internet and an internal network’s line of defense, and is usually some combination of firewalls and b ...
Downlaod File
... receiving application, differentiated by the transport port number. The port number identifies a port, a dedicated location in memory for receiving or sending data. In addition, the transport protocol layer might provide other services, such as reliable, in order data delivery. The end result depend ...
... receiving application, differentiated by the transport port number. The port number identifies a port, a dedicated location in memory for receiving or sending data. In addition, the transport protocol layer might provide other services, such as reliable, in order data delivery. The end result depend ...
Dasar Jaringan Komputer
... • 17 messages for one URL request – 6 to find the IP (Internet Protocol) address – 3 for connection establishment of TCP – 4 for HTTP request and acknowledgement • Request: I got your request and I will send the data • Reply: Here is the data you requested; I got the data ...
... • 17 messages for one URL request – 6 to find the IP (Internet Protocol) address – 3 for connection establishment of TCP – 4 for HTTP request and acknowledgement • Request: I got your request and I will send the data • Reply: Here is the data you requested; I got the data ...
Midterm Sample
... 3) Statistical multiplexing is most useful when the peak rate is close to the average rate. False 4) The changing of either the IP address or the name leads to an update of DNS. True 5) TCP uses destination IP address and port number to identify the application layer process. False ...
... 3) Statistical multiplexing is most useful when the peak rate is close to the average rate. False 4) The changing of either the IP address or the name leads to an update of DNS. True 5) TCP uses destination IP address and port number to identify the application layer process. False ...
Intro - University of Pittsburgh
... roughly hierarchical at center: “tier-1” ISPs (e.g., Verizon, Sprint, AT&T, ...
... roughly hierarchical at center: “tier-1” ISPs (e.g., Verizon, Sprint, AT&T, ...
Chapter 10 Introduction to MAN and WAN
... Packet-switched network – Network in which all data messages are transmitted using fixed-sized packages, called packets ...
... Packet-switched network – Network in which all data messages are transmitted using fixed-sized packages, called packets ...
Slides - TERENA Networking Conference 2005
... last bastion of total freedom and therefore don’t want traffic traces taken at all. The current political debate is going in the other direction. Police, authorities etc will be able to get rather detailed information about Internet traffic. ...
... last bastion of total freedom and therefore don’t want traffic traces taken at all. The current political debate is going in the other direction. Police, authorities etc will be able to get rather detailed information about Internet traffic. ...
Lesson 11
... Identifies end system originated packet • Source and destination address • Protocol layer generating data (e.g. TCP) • Identification supplied by IP layer ...
... Identifies end system originated packet • Source and destination address • Protocol layer generating data (e.g. TCP) • Identification supplied by IP layer ...
Projects
... Akamai’s stock was initially crippled by the industry slowdown in 2001 and 2002, and though the company has rebounded since then, other content delivery networks have entered the market. This increased competition has lowered Akamai’s profit margins and forced them to lower prices as well. The incre ...
... Akamai’s stock was initially crippled by the industry slowdown in 2001 and 2002, and though the company has rebounded since then, other content delivery networks have entered the market. This increased competition has lowered Akamai’s profit margins and forced them to lower prices as well. The incre ...
JOB DESCRIPTION NETWORK ADMINISTRATOR
... • Completion of a four year degree in Computer Science, or a related field with coursework in networking and two years of network experience including wide area networks, and supervisory training or experience; or an associate’s degree in Computer Science or related field, two years’ experience in a ...
... • Completion of a four year degree in Computer Science, or a related field with coursework in networking and two years of network experience including wide area networks, and supervisory training or experience; or an associate’s degree in Computer Science or related field, two years’ experience in a ...
Trojan Horse - Communications Systems Center
... 2. Run “Exploit” scripts against open ports 3. Get access to Shell program which is “suid” (has “root” privileges). 4. Download from Hacker Web site special versions of systems files that will let Cracker have free access in the future without his cpu time or disk storage space being noticed by audi ...
... 2. Run “Exploit” scripts against open ports 3. Get access to Shell program which is “suid” (has “root” privileges). 4. Download from Hacker Web site special versions of systems files that will let Cracker have free access in the future without his cpu time or disk storage space being noticed by audi ...
4th Edition: Chapter 1 - University of Pittsburgh
... roughly hierarchical at center: “tier-1” ISPs (e.g., Verizon, Sprint, AT&T, ...
... roughly hierarchical at center: “tier-1” ISPs (e.g., Verizon, Sprint, AT&T, ...
1-ITN-chap-3g
... Application Protocol - Hypertext Transfer Protocol (HTTP) is a protocol that governs the way a web server and a web client interact. Transport Protocol - Transmission Control Protocol (TCP) is the transport protocol that manages the individual conversations between web servers and web clients. ...
... Application Protocol - Hypertext Transfer Protocol (HTTP) is a protocol that governs the way a web server and a web client interact. Transport Protocol - Transmission Control Protocol (TCP) is the transport protocol that manages the individual conversations between web servers and web clients. ...
Private Company Services Hot Topics Internet of Things
... objects that can be connected to one another and to the Internet. These objects can interact because of embedded technologies like sensors. Think about it as a network of connected “things.” The relationship will be between people-to-people, people-to-things, and things-to-things. The result? Data c ...
... objects that can be connected to one another and to the Internet. These objects can interact because of embedded technologies like sensors. Think about it as a network of connected “things.” The relationship will be between people-to-people, people-to-things, and things-to-things. The result? Data c ...
4th Edition: Chapter 1
... communication services provided to apps: reliable data delivery from source to destination “best effort” (unreliable) data delivery ...
... communication services provided to apps: reliable data delivery from source to destination “best effort” (unreliable) data delivery ...