Networking Components and Devices
... Token Ring and MSAUs Both hubs and switches are used in Ethernet networks. Token Ring networks, which are few and far between, use special devices called multistation access units (MSAUs) to create the network. In some cases, MSAUs are referred to as Token Ring switches; but because of the way Token ...
... Token Ring and MSAUs Both hubs and switches are used in Ethernet networks. Token Ring networks, which are few and far between, use special devices called multistation access units (MSAUs) to create the network. In some cases, MSAUs are referred to as Token Ring switches; but because of the way Token ...
ch5_DATALINK_0708
... Routers vs. Bridges Bridges + and + Bridge operation is simpler requiring less packet processing + Bridge tables are self learning - All traffic confined to spanning tree, even when alternative bandwidth is available - Bridges do not offer protection from broadcast storms Routers + and - ...
... Routers vs. Bridges Bridges + and + Bridge operation is simpler requiring less packet processing + Bridge tables are self learning - All traffic confined to spanning tree, even when alternative bandwidth is available - Bridges do not offer protection from broadcast storms Routers + and - ...
19_wireless
... Uses three levels of keys: master key, working key and RC4 key. The working keys are then combined with a longer, 48-bit IV to form the RC4 key for each packet. This design mimics the WEP approach enough to allow WPA to be used with first-generation Wi-Fi network cards, some of which implemented por ...
... Uses three levels of keys: master key, working key and RC4 key. The working keys are then combined with a longer, 48-bit IV to form the RC4 key for each packet. This design mimics the WEP approach enough to allow WPA to be used with first-generation Wi-Fi network cards, some of which implemented por ...
CCNA2 Module 4
... the TCP/IP protocol suite. It allows connections to be made to remote hosts. • Telnet is an IOS EXEC command used to verify the application layer software between source and destination. This is the most complete test ...
... the TCP/IP protocol suite. It allows connections to be made to remote hosts. • Telnet is an IOS EXEC command used to verify the application layer software between source and destination. This is the most complete test ...
chapter5 - Computer Science Division
... bits coming in one link go out all other links at same rate all nodes connected to hub can collide with one another no frame buffering no CSMA/CD at hub: host NICs detect collisions twisted pair ...
... bits coming in one link go out all other links at same rate all nodes connected to hub can collide with one another no frame buffering no CSMA/CD at hub: host NICs detect collisions twisted pair ...
Chapter5_4th - Computer Science Division
... bits coming in one link go out all other links at same rate all nodes connected to hub can collide with one another no frame buffering no CSMA/CD at hub: host NICs detect collisions twisted pair ...
... bits coming in one link go out all other links at same rate all nodes connected to hub can collide with one another no frame buffering no CSMA/CD at hub: host NICs detect collisions twisted pair ...
3rd Edition, Chapter 5
... Two types of “links”: r point-to-point m PPP for dial-up access m point-to-point link between Ethernet switch and host r broadcast (shared wire or medium) m old-fashioned Ethernet m upstream HFC m 802.11 wireless LAN ...
... Two types of “links”: r point-to-point m PPP for dial-up access m point-to-point link between Ethernet switch and host r broadcast (shared wire or medium) m old-fashioned Ethernet m upstream HFC m 802.11 wireless LAN ...
3rd Edition, Chapter 5
... share channel efficiently and fairly at high load inefficient at low load: delay in channel access, 1/N bandwidth allocated even if only 1 active node! Random access MAC protocols efficient at low load: single node can fully utilize channel high load: collision overhead “taking turns” protoc ...
... share channel efficiently and fairly at high load inefficient at low load: delay in channel access, 1/N bandwidth allocated even if only 1 active node! Random access MAC protocols efficient at low load: single node can fully utilize channel high load: collision overhead “taking turns” protoc ...
3rd Edition: Chapter 4 - Northwestern University
... dest. network unreachable dest host unreachable dest protocol unreachable dest port unreachable dest network unknown dest host unknown source quench (congestion control - not used) ...
... dest. network unreachable dest host unreachable dest protocol unreachable dest port unreachable dest network unknown dest host unknown source quench (congestion control - not used) ...
THE NETWORK LAYER 5.2 ROUTING ALGORITHMS
... Link State Routing (Second Generation in ARPANET) - the first generation did not consider the speed, but only the queue length, and took too long to converge. 1. Discover its neighbors and learn their network addresses. 2. Measure the delay or cost to each of its neighbors (e.g. by ECHO packets) m ...
... Link State Routing (Second Generation in ARPANET) - the first generation did not consider the speed, but only the queue length, and took too long to converge. 1. Discover its neighbors and learn their network addresses. 2. Measure the delay or cost to each of its neighbors (e.g. by ECHO packets) m ...
Designing Large-Scale LAN/WANs, Part I
... LAN/WAN designers are now faced with increasing demands for intersubnet communication, although Layer 2 switches use microsegmentation 12 to satisfy the demands for more bandwidth and increased performance. Cisco recommends that the traffic must go through a Layer 3 device every time a user accesses ...
... LAN/WAN designers are now faced with increasing demands for intersubnet communication, although Layer 2 switches use microsegmentation 12 to satisfy the demands for more bandwidth and increased performance. Cisco recommends that the traffic must go through a Layer 3 device every time a user accesses ...
Link Layer Protocols
... Two types of “links”: point-to-point PPP for dial-up access point-to-point link between Ethernet switch and host broadcast (shared wire or medium) traditional Ethernet upstream HFC 802.11 wireless LAN ...
... Two types of “links”: point-to-point PPP for dial-up access point-to-point link between Ethernet switch and host broadcast (shared wire or medium) traditional Ethernet upstream HFC 802.11 wireless LAN ...
RuggedBackbone™ RX1500/1501
... interior gateway protocol (IGP), which is designed to work within an autonomous system. It is also a link state protocol, meaning that the best route is determined by the type and speed of the inter-router links, not by how many router hops they are away from each other (as in Distance-Vector routin ...
... interior gateway protocol (IGP), which is designed to work within an autonomous system. It is also a link state protocol, meaning that the best route is determined by the type and speed of the inter-router links, not by how many router hops they are away from each other (as in Distance-Vector routin ...
Christopher Wilder - P2P Over MANET
... Network performance dissipates exponentially as the network grows larger MANETs with anywhere between 2 to 100 MANET Routers don’t suffer from performance problems A big or very big MANET, consisting of any where between 100 to 1000 or more MANET routers, has scalability issues and comes at the high ...
... Network performance dissipates exponentially as the network grows larger MANETs with anywhere between 2 to 100 MANET Routers don’t suffer from performance problems A big or very big MANET, consisting of any where between 100 to 1000 or more MANET routers, has scalability issues and comes at the high ...
Network Layer - Donald Bren School of Information and Computer
... DHCP: Dynamic Host Configuration Protocol goal: allow host to dynamically obtain its IP address from network ...
... DHCP: Dynamic Host Configuration Protocol goal: allow host to dynamically obtain its IP address from network ...
lect22 - Computer and Information Sciences
... storms (endless broadcasting by a host will be forwarded by a bridge) ...
... storms (endless broadcasting by a host will be forwarded by a bridge) ...
Lecture 03
... Groups bits into frames; adds check bits Detection of bit errors; Retransmission of frames ...
... Groups bits into frames; adds check bits Detection of bit errors; Retransmission of frames ...
No Slide Title - IEEE-SA
... • Very low power consumption • Easy implementation • MAC is only to provide a generic multiple access, device discovery and data transfer services for upper layers • Scalability • (M)Any device can contact any device in range • Optimized for low bit rates and low duty cycles Submission ...
... • Very low power consumption • Easy implementation • MAC is only to provide a generic multiple access, device discovery and data transfer services for upper layers • Scalability • (M)Any device can contact any device in range • Optimized for low bit rates and low duty cycles Submission ...
Application Layer
... – Internet Corporation for Assigned Names and Numbers – Manages the assignment of both IP and application layer name space (domain names) • Both assigned at the same time and in groups • Manages some domains directly (e.g., .com, .org, .net) and • Authorizes private companies to become domain name r ...
... – Internet Corporation for Assigned Names and Numbers – Manages the assignment of both IP and application layer name space (domain names) • Both assigned at the same time and in groups • Manages some domains directly (e.g., .com, .org, .net) and • Authorizes private companies to become domain name r ...
Pocket Guide - Industrial Networking Solutions
... much earlier than it did others. We were therefore able to demonstrate a pioneering spirit in several ways: in 1984, we built the University of Stuttgart fiber optic network. The result was a global premiere for ETHERNET over fiber optic networks. In 1990, we came out with the ”ETHERNET ring“, our n ...
... much earlier than it did others. We were therefore able to demonstrate a pioneering spirit in several ways: in 1984, we built the University of Stuttgart fiber optic network. The result was a global premiere for ETHERNET over fiber optic networks. In 1990, we came out with the ”ETHERNET ring“, our n ...
Chapter5link
... reliable delivery between adjacent nodes wireless links: high error rates • Q: why both link-level and end-end reliability? half-duplex and full-duplex with half duplex, nodes at both ends of link can transmit, but not at same time ...
... reliable delivery between adjacent nodes wireless links: high error rates • Q: why both link-level and end-end reliability? half-duplex and full-duplex with half duplex, nodes at both ends of link can transmit, but not at same time ...
Bluetooth-an Enabler for Personal Area Networking Presentation
... Packet Forwarding in the Scatternet Packet forwarding(routing)becomes necessary when packets must traverse multiple hops between the source and destination nodes. The current IP DHCP and the emerging zero configuration methods rely on link layer connectivity.Generally, the protocols will not work ...
... Packet Forwarding in the Scatternet Packet forwarding(routing)becomes necessary when packets must traverse multiple hops between the source and destination nodes. The current IP DHCP and the emerging zero configuration methods rely on link layer connectivity.Generally, the protocols will not work ...