Layer One Networking
... Application layer Presentation layer Session layer Transport layer Network layer Data link layer Physical layer ...
... Application layer Presentation layer Session layer Transport layer Network layer Data link layer Physical layer ...
CDP1
... Cisco devices never forward a CDP packet so the information gathered is only about devices with which we have layer two connectivity, and not all the devices in the network. If any information changes from the last received packet, the new information is cached and the older information is discarded ...
... Cisco devices never forward a CDP packet so the information gathered is only about devices with which we have layer two connectivity, and not all the devices in the network. If any information changes from the last received packet, the new information is cached and the older information is discarded ...
Chapter 1 - UniMAP Portal
... Need for low-cost, high-speed networks To interconnect local workstations To access local shared resources (printers, storage, servers) Low cost, high-speed communications with low error rate possible using coaxial cable Ethernet is the standard for high-speed wired access to computer networks ...
... Need for low-cost, high-speed networks To interconnect local workstations To access local shared resources (printers, storage, servers) Low cost, high-speed communications with low error rate possible using coaxial cable Ethernet is the standard for high-speed wired access to computer networks ...
Notes: Chptr 1 - UniMAP Portal
... Need for low-cost, high-speed networks To interconnect local workstations To access local shared resources (printers, storage, servers) Low cost, high-speed communications with low error rate possible using coaxial cable Ethernet is the standard for high-speed wired access to computer networks ...
... Need for low-cost, high-speed networks To interconnect local workstations To access local shared resources (printers, storage, servers) Low cost, high-speed communications with low error rate possible using coaxial cable Ethernet is the standard for high-speed wired access to computer networks ...
Ch_19 - UCF EECS
... Figure 19.4 shows an example of a checksum calculation for an IPv4 header without options. The header is divided into 16-bit sections. All the sections are added and the sum is complemented after wrapping the leftmost digit. The result is inserted in the checksum field. Note that the calculation of ...
... Figure 19.4 shows an example of a checksum calculation for an IPv4 header without options. The header is divided into 16-bit sections. All the sections are added and the sum is complemented after wrapping the leftmost digit. The result is inserted in the checksum field. Note that the calculation of ...
Solution
... Figure 19.4 shows an example of a checksum calculation for an IPv4 header without options. The header is divided into 16-bit sections. All the sections are added and the sum is complemented after wrapping the leftmost digit. The result is inserted in the checksum field. Note that the calculation of ...
... Figure 19.4 shows an example of a checksum calculation for an IPv4 header without options. The header is divided into 16-bit sections. All the sections are added and the sum is complemented after wrapping the leftmost digit. The result is inserted in the checksum field. Note that the calculation of ...
ATM-MPLS
... ATM: network or link layer? Vision: end-to-end transport: “ATM from desktop to desktop” ...
... ATM: network or link layer? Vision: end-to-end transport: “ATM from desktop to desktop” ...
Internet Secure Protocols
... almost (but not quite) as safe as a node disconnected from the net. Internal routers should not advertise paths to such nodes to the outside. Filter routes learned from the outside: ...
... almost (but not quite) as safe as a node disconnected from the net. Internal routers should not advertise paths to such nodes to the outside. Filter routes learned from the outside: ...
COEN 351
... almost (but not quite) as safe as a node disconnected from the net. Internal routers should not advertise paths to such nodes to the outside. Filter routes learned from the outside: ...
... almost (but not quite) as safe as a node disconnected from the net. Internal routers should not advertise paths to such nodes to the outside. Filter routes learned from the outside: ...
15. - 건국대학교
... Usually runs on top of UDP which provides efficient (but less reliable) connectionless datagram service: • RTP must create its own timestamping and sequencing mechanisms to ensure the ordering. ...
... Usually runs on top of UDP which provides efficient (but less reliable) connectionless datagram service: • RTP must create its own timestamping and sequencing mechanisms to ensure the ordering. ...
Slide 1
... – No call setup – More reliable (can route around failed nodes or congestion) • Virtual circuit – Fixed route established before any packets sent – No need for routing decision for each packet at each node ...
... – No call setup – More reliable (can route around failed nodes or congestion) • Virtual circuit – Fixed route established before any packets sent – No need for routing decision for each packet at each node ...
The Internet
... • Individual flows are not identified and instead the individual flows in each services class are aggregated together • Diffserv network the type of service field in the IP packet header is replaced by a new field call DS field • DSCP:used to enable each router to determined the traffic class to whi ...
... • Individual flows are not identified and instead the individual flows in each services class are aggregated together • Diffserv network the type of service field in the IP packet header is replaced by a new field call DS field • DSCP:used to enable each router to determined the traffic class to whi ...
ppt
... – Identifies the higher-level protocol • E.g., “6” for the Transmission Control Protocol (TCP) • E.g., “17” for the User Datagram Protocol (UDP) ...
... – Identifies the higher-level protocol • E.g., “6” for the Transmission Control Protocol (TCP) • E.g., “17” for the User Datagram Protocol (UDP) ...
Programming the IBM Power3 SP
... INCITE: Edge-based Traffic Processing and Service Inference for High-Performance Networks Richard Baraniuk, Rice University; Les Cottrell, SLAC; Wu-chun Feng, LANL ...
... INCITE: Edge-based Traffic Processing and Service Inference for High-Performance Networks Richard Baraniuk, Rice University; Les Cottrell, SLAC; Wu-chun Feng, LANL ...
How Fast Is the Internet - Faculty of Computer Science
... Round trip time is 90 ms Total download time is 7 x 90 = 360 ms Effective transmission time 62,728 bytes / 360 ms = 174 KBs = 1.4 Mbs ...
... Round trip time is 90 ms Total download time is 7 x 90 = 360 ms Effective transmission time 62,728 bytes / 360 ms = 174 KBs = 1.4 Mbs ...
R1.What is the difference between a host and an end system?List
... c) continuously transmitting means dtrans=dprop thus we have x/10Mbps=180msec =>x=1.8*106bits ...
... c) continuously transmitting means dtrans=dprop thus we have x/10Mbps=180msec =>x=1.8*106bits ...
PPT - TIME.mk
... Link State Routing Each router must do the following: A. Discover its neighbors, learn their network address. B. Measure the delay or cost to each of its neighbors. C. Construct a packet telling all it has just learned. D. Send this packet to all other routers. E. Compute the shortest path to every ...
... Link State Routing Each router must do the following: A. Discover its neighbors, learn their network address. B. Measure the delay or cost to each of its neighbors. C. Construct a packet telling all it has just learned. D. Send this packet to all other routers. E. Compute the shortest path to every ...
Security The big picture Some consequences Three types of threat
... • Very poor assumption to make when bad guys can control network! ...
... • Very poor assumption to make when bad guys can control network! ...
Network Layer
... Switched networks are more scalable than sharedmedia networks ◦ Directly due to their ability to support many hosts at full speed (limited to memory capacity) ...
... Switched networks are more scalable than sharedmedia networks ◦ Directly due to their ability to support many hosts at full speed (limited to memory capacity) ...