Switch - NDSU Computer Science
... There is no round trip time delay waiting for setup. (Host can send data when ready.) Source doesn’t know if network can deliver packet or even if the intended destination is up and accepting packets Since packets are treated independently, it is possible to route around link/node failures. Since ev ...
... There is no round trip time delay waiting for setup. (Host can send data when ready.) Source doesn’t know if network can deliver packet or even if the intended destination is up and accepting packets Since packets are treated independently, it is possible to route around link/node failures. Since ev ...
Chapter
... • Includes the network adapter and MAC address • MAC (media access control) address is a unique 48-bit hexadecimal number hard-coded on the card by the manufacturer • Also known as hardware address, physical address, adapter address, or Ethernet address • Only used on local netowrks. ...
... • Includes the network adapter and MAC address • MAC (media access control) address is a unique 48-bit hexadecimal number hard-coded on the card by the manufacturer • Also known as hardware address, physical address, adapter address, or Ethernet address • Only used on local netowrks. ...
presentation source
... • We built an on-campus ATM network and bought access to a MAN (ATDnet), but the only WAN available was the ACTS satellite • Our network was very long and very fat: OC3 (155 Mb/sec) over satellite (500ms RTT). • We were expecting standard LFN-related problems; the solutions are fairly well-known (wi ...
... • We built an on-campus ATM network and bought access to a MAN (ATDnet), but the only WAN available was the ACTS satellite • Our network was very long and very fat: OC3 (155 Mb/sec) over satellite (500ms RTT). • We were expecting standard LFN-related problems; the solutions are fairly well-known (wi ...
Slides
... protection to the entire packet. – After the AH and ESP fields are added to the IP packet, the entire packet plus the security fields are treated as the payload of new `outer’ IP packet with a new outer IP header. – No routers on the way are able to examine the inner IP header. – Since the total is ...
... protection to the entire packet. – After the AH and ESP fields are added to the IP packet, the entire packet plus the security fields are treated as the payload of new `outer’ IP packet with a new outer IP header. – No routers on the way are able to examine the inner IP header. – Since the total is ...
Lesson Plan Network Design
... Diagram - An illustration of a plan, in networking it describes a design. Fiber Distributed Data Interface (FDDI) Hub -used to connect segments of a LAN that uses multiple ports. Hybrid hub - a device used to interconnect different types of cables and to maximize network efficiency. Layout ...
... Diagram - An illustration of a plan, in networking it describes a design. Fiber Distributed Data Interface (FDDI) Hub -used to connect segments of a LAN that uses multiple ports. Hybrid hub - a device used to interconnect different types of cables and to maximize network efficiency. Layout ...
routing
... Forwarding Tables • Suppose there are n possible destinations, how many bits are needed to represent addresses in a routing table? – log2n ...
... Forwarding Tables • Suppose there are n possible destinations, how many bits are needed to represent addresses in a routing table? – log2n ...
class2
... Explicit structure allows identification, relationship of complex system’s pieces Modularization eases maintenance, updating of system Change of implementation of layer’s service transparent to rest of system e.g., change in gate procedure doesn’t affect rest of system ...
... Explicit structure allows identification, relationship of complex system’s pieces Modularization eases maintenance, updating of system Change of implementation of layer’s service transparent to rest of system e.g., change in gate procedure doesn’t affect rest of system ...
The Internet Network layer
... – Retrofit IP network layer with encryption and authentication – http://www.rfc-editor.org/rfc/rfc2411.txt – If time permits, we may cover this at the end of the course….or someone should do a research paper on this. ...
... – Retrofit IP network layer with encryption and authentication – http://www.rfc-editor.org/rfc/rfc2411.txt – If time permits, we may cover this at the end of the course….or someone should do a research paper on this. ...
C03-Wireless_LANs
... Current mechanisms (even newer standards like 802.11i) plus incompatible devices from different vendors are massive problems for the use of, e.g., VoIP in WLANs Handover should be feasible within 50ms in order to support multimedia applications efficiently ...
... Current mechanisms (even newer standards like 802.11i) plus incompatible devices from different vendors are massive problems for the use of, e.g., VoIP in WLANs Handover should be feasible within 50ms in order to support multimedia applications efficiently ...
NETWORK CONNECTION HARDWARE
... Network interface adapters provide the physical link between computers and the network. Hubs are physical layer devices that amplify and repeat signals out all ports except the one they were received through. Bridges and switches are data-link layer devices that use destination addresses to forward ...
... Network interface adapters provide the physical link between computers and the network. Hubs are physical layer devices that amplify and repeat signals out all ports except the one they were received through. Bridges and switches are data-link layer devices that use destination addresses to forward ...
Network LANScape
... Switches replace Hubs Hubs receive a transmission in one port and retransmit out all other ports Connect Local Machines on the same “street” Many available brands ...
... Switches replace Hubs Hubs receive a transmission in one port and retransmit out all other ports Connect Local Machines on the same “street” Many available brands ...
TCOM 509 – Internet Protocols (TCP/IP) Lecture 03
... Based in part upon slides of Prof. J. Kurose (U Mass), Prof. K. Fall (UC-Bekeley) ...
... Based in part upon slides of Prof. J. Kurose (U Mass), Prof. K. Fall (UC-Bekeley) ...
Toward Millisecond IGP Convergence
... The usual way of dealing with this is to treat “bad news” differently from “good news” so routing is quick to find an alternate path on any failure but slow to switch back when the link comes up. The current IS–IS spec treats bad news and good news the same but it should be possible to change the sp ...
... The usual way of dealing with this is to treat “bad news” differently from “good news” so routing is quick to find an alternate path on any failure but slow to switch back when the link comes up. The current IS–IS spec treats bad news and good news the same but it should be possible to change the sp ...
Review Questions 1 File
... 10. Explain the basic components of a Modbus message 11. Describe how can transmit Modbus messages using the network infrastructure that designed for Ethernet communication 12. Compare Modbus RTU and Modbus ASCII in term of the network infrastructure and the transmission frame 13. Briefly explain th ...
... 10. Explain the basic components of a Modbus message 11. Describe how can transmit Modbus messages using the network infrastructure that designed for Ethernet communication 12. Compare Modbus RTU and Modbus ASCII in term of the network infrastructure and the transmission frame 13. Briefly explain th ...
Pass4sure 640
... The main function of a router is to connect different, separated networks together. In doing so, switching packets from one network to another is a primary function, along with providing for communication between networks. As an additional feature, routers are capable of providing filtering on a net ...
... The main function of a router is to connect different, separated networks together. In doing so, switching packets from one network to another is a primary function, along with providing for communication between networks. As an additional feature, routers are capable of providing filtering on a net ...
Medium Time Metric
... traffic loads change much faster than either link rates or link connectivity ...
... traffic loads change much faster than either link rates or link connectivity ...
Week_Three_Network_ppt
... process of evaluating the a site to see if it will be appropriate for wireless transmission. • An access point is likely to be placed in a location based on an estimate of signal loss that will occur between the access point and the users of the WLAN. An access point is a device that transmits and r ...
... process of evaluating the a site to see if it will be appropriate for wireless transmission. • An access point is likely to be placed in a location based on an estimate of signal loss that will occur between the access point and the users of the WLAN. An access point is a device that transmits and r ...
Presentazione di PowerPoint - Micrel Lab @ DEIS
... Uniform interface method of accessing the Bluetooth controller capabilities Allows the software stack on the ...
... Uniform interface method of accessing the Bluetooth controller capabilities Allows the software stack on the ...
Nefflow based intrusion detection system
... console [7l. In this paper, we will focus on the relationships between probes, assessment engines, and response agents. Probes are responsible to capture the network packets and extract required data from either the header or the payload portion of the packets captured. The collected data is sent to ...
... console [7l. In this paper, we will focus on the relationships between probes, assessment engines, and response agents. Probes are responsible to capture the network packets and extract required data from either the header or the payload portion of the packets captured. The collected data is sent to ...
Multi Node Label Routing Protocol
... • Churn Rate is equal to the number nodes that experience a link failure (2 in this case) • Convergence Time is equal to the number of hello times required to determine a link failure plus the time to update the affected nodes’ neighbor tables (2 second hello times, 3 hellos for link ...
... • Churn Rate is equal to the number nodes that experience a link failure (2 in this case) • Convergence Time is equal to the number of hello times required to determine a link failure plus the time to update the affected nodes’ neighbor tables (2 second hello times, 3 hellos for link ...
Traffic Measurement - Computer Science & Engineering
... Measurement Tools (2 of 3) • Measurement tools can also be classified as active or passive • Active: the monitoring tool generates traffic of its own during data collection (e.g., ping, pchar) • Passive: the monitoring tool is passive, observing and recording traffic info, while generating none of ...
... Measurement Tools (2 of 3) • Measurement tools can also be classified as active or passive • Active: the monitoring tool generates traffic of its own during data collection (e.g., ping, pchar) • Passive: the monitoring tool is passive, observing and recording traffic info, while generating none of ...
Wake-on-LAN
Wake-on-LAN (WoL) is an Ethernet or Token ring computer networking standard that allows a computer to be turned on or awakened by a network message.The message is usually sent by a program executed on another computer on the same local area network. It is also possible to initiate the message from another network by using subnet directed broadcasts or a WOL gateway service. Equivalent terms include wake on WAN, remote wake-up, power on by LAN, power up by LAN, resume by LAN, resume on LAN and wake up on LAN. In case the computer being awakened is communicating via Wi-Fi, a supplementary standard called Wake on Wireless LAN (WoWLAN) must be employed.The WOL and WoWLAN standards are often supplemented by vendors to provide protocol-transparent on-demand services, for example in the Apple Bonjour wake-on-demand (Sleep Proxy) feature.