Introduction Networking involves connecting computers and other
... networking is basic, a great deal of technology is required for one device to connect and communicate with another, and many choices for physical connections and related software are possible. Network media The most elementary network consists of two computers connected by some kind of transmission ...
... networking is basic, a great deal of technology is required for one device to connect and communicate with another, and many choices for physical connections and related software are possible. Network media The most elementary network consists of two computers connected by some kind of transmission ...
ppt
... len service fragment 16-bit identifier flgs offset upper time to Internet layer live checksum ...
... len service fragment 16-bit identifier flgs offset upper time to Internet layer live checksum ...
netLyr-address
... Network Layer • We will discuss the Internet Protocol • Recall, this is layered protocol, much like the OSI model • Internet Protocol does not have its own physical or data link layers • Uses existing lower layer protocols as discussed • The Internet Protocol is often called TCP/IP which represents ...
... Network Layer • We will discuss the Internet Protocol • Recall, this is layered protocol, much like the OSI model • Internet Protocol does not have its own physical or data link layers • Uses existing lower layer protocols as discussed • The Internet Protocol is often called TCP/IP which represents ...
the network layer 1
... To estimate the delay, a router can send an echo packet to its neighbor and measure the time when it receives it back While measuring time, it is possible to include or exclude the time the echo packet spends on the queues which corresponds to consider load on the line Including load may cause oscil ...
... To estimate the delay, a router can send an echo packet to its neighbor and measure the time when it receives it back While measuring time, it is possible to include or exclude the time the echo packet spends on the queues which corresponds to consider load on the line Including load may cause oscil ...
Chapter1
... Goal: move packets from source to destination datagram network: destination address in packet determines next hop ...
... Goal: move packets from source to destination datagram network: destination address in packet determines next hop ...
Document
... DCs can be physically replicated Test - 8,000 IP addresses for 34 hours – 47 million packets, 21,000 DNS requests, 150,000 TCP connections – Peak: only 200 requests/sec on DC • Test DC can handle 40x this traffic ...
... DCs can be physically replicated Test - 8,000 IP addresses for 34 hours – 47 million packets, 21,000 DNS requests, 150,000 TCP connections – Peak: only 200 requests/sec on DC • Test DC can handle 40x this traffic ...
Basic Concepts of Computer Networks
... of systems on a computer network. It defines how the computers, or nodes, within the network are arranged and connected to each other. ...
... of systems on a computer network. It defines how the computers, or nodes, within the network are arranged and connected to each other. ...
Aalborg Universitet
... loop based approach. In combination with Single Instruction, Multiple Data (SIMD) instructions this approach provides a performance increase of over 500% compared to a baseline implementation. The implementation is further optimized through parallelization and encoding speeds up to 43 MB/s is measur ...
... loop based approach. In combination with Single Instruction, Multiple Data (SIMD) instructions this approach provides a performance increase of over 500% compared to a baseline implementation. The implementation is further optimized through parallelization and encoding speeds up to 43 MB/s is measur ...
IP: Adressing, ARP, and Routing
... When all machines receive the ARP request broadcast, they can store the address mapping in their cache. Do they? ARP is used when an IP to physical address mapping changes to notify hosts on the network of the change ARP messages are encapsulated in MAC frames. A special value in the type field of t ...
... When all machines receive the ARP request broadcast, they can store the address mapping in their cache. Do they? ARP is used when an IP to physical address mapping changes to notify hosts on the network of the change ARP messages are encapsulated in MAC frames. A special value in the type field of t ...
IP Network Configuration for Traffic Engineering
... Router configuration files • Physical and logical connectivity, link capacity, routing protocols, access lists, … ...
... Router configuration files • Physical and logical connectivity, link capacity, routing protocols, access lists, … ...
PART I Optical packet switching
... slow to perform the required ultra-fast switching operation, the basic idea is to exploit the bandwidth made available by optical components while reducing the electrooptical conversions as much as possible and achieving better interfacing with WDM transmission systems. An example of OPS network wit ...
... slow to perform the required ultra-fast switching operation, the basic idea is to exploit the bandwidth made available by optical components while reducing the electrooptical conversions as much as possible and achieving better interfacing with WDM transmission systems. An example of OPS network wit ...
csp_07-08_net
... segmentation/desegmentation, and error control functions. The protocol that operates on this level is called Internet Protocol, or IP. – This is the layer at which router operates – makes Internet possible ...
... segmentation/desegmentation, and error control functions. The protocol that operates on this level is called Internet Protocol, or IP. – This is the layer at which router operates – makes Internet possible ...
ppt - Carnegie Mellon School of Computer Science
... What distinguish different types of networks? » The services they provide What distinguish the services? » Rich of the services ...
... What distinguish different types of networks? » The services they provide What distinguish the services? » Rich of the services ...
Document
... – B trusts the packets from A because of its correct SEQ/ACK numbers. – If there was a way to mess up A’s SEQ/ACK, B would stop believing A’ real packets. – S could then impersonate to be A, but using correct SEQ/ACK numbers from the perspective of B. – S would now have taken over the connection, an ...
... – B trusts the packets from A because of its correct SEQ/ACK numbers. – If there was a way to mess up A’s SEQ/ACK, B would stop believing A’ real packets. – S could then impersonate to be A, but using correct SEQ/ACK numbers from the perspective of B. – S would now have taken over the connection, an ...
(1a) Describe three different scenarios when an IP
... (4e) How do the actions of a Web browser depend on the Content-Type header in an HTTP response message? For example, how would the browser behave when the response message has “Content-Type: application/pdf” as opposed to “Content-Type: text/plain”? The browser uses the content type to determine how ...
... (4e) How do the actions of a Web browser depend on the Content-Type header in an HTTP response message? For example, how would the browser behave when the response message has “Content-Type: application/pdf” as opposed to “Content-Type: text/plain”? The browser uses the content type to determine how ...
Chap 4 Router Components
... CDP starts up automatically, which then detect neighboring Cisco devices that are also running CDP ...
... CDP starts up automatically, which then detect neighboring Cisco devices that are also running CDP ...
Networks
... Computer with NIC (PCs, laptops, handhelds) routers & switches (IP router, Ethernet switch) Links” Transmission media” (wired, wireless) protocols (IP,TCP,CSMA/CD,CSMA/CA) applications (network services) i.e. Network Operating System (NOS) • humans and service agents ...
... Computer with NIC (PCs, laptops, handhelds) routers & switches (IP router, Ethernet switch) Links” Transmission media” (wired, wireless) protocols (IP,TCP,CSMA/CD,CSMA/CA) applications (network services) i.e. Network Operating System (NOS) • humans and service agents ...
devices
... certain network resources (such as servers). A remote router joins networks across large geographical areas, such as between cities, states, and countries. ...
... certain network resources (such as servers). A remote router joins networks across large geographical areas, such as between cities, states, and countries. ...
Final Term Paper Instructions
... flowing across the network (consistent with 2(d) above). If power cycling of the nodes is implemented, what then becomes the average data rate and, if necessary, how will the node awake periods be synchronized across all nodes? If the data is to be stored for future archival/access/analysis purposes ...
... flowing across the network (consistent with 2(d) above). If power cycling of the nodes is implemented, what then becomes the average data rate and, if necessary, how will the node awake periods be synchronized across all nodes? If the data is to be stored for future archival/access/analysis purposes ...
3rd Edition: Chapter 2 - Northwestern Networks Group
... may be intermittently connected may have dynamic IP addresses do not communicate directly with each other ...
... may be intermittently connected may have dynamic IP addresses do not communicate directly with each other ...
Campus Network Best Practices: Core and Edge Networks
... • Resist the urge to save money by breaking this model and daisy chaining networks or buildings together • Try hard not to do this: Fiber link to Link to another building ...
... • Resist the urge to save money by breaking this model and daisy chaining networks or buildings together • Try hard not to do this: Fiber link to Link to another building ...
Document
... Policies for IP QoS Principle for IP QoS: Be faithful to IP’s philosophy. - Advantage of IP: Connectionless paradigm Simple & scalable IP QoS Provisioning: via Policy-based networking - Destination-based routing based on OSPF principle - Treat QoS traffic with higher priority than the BE traffi ...
... Policies for IP QoS Principle for IP QoS: Be faithful to IP’s philosophy. - Advantage of IP: Connectionless paradigm Simple & scalable IP QoS Provisioning: via Policy-based networking - Destination-based routing based on OSPF principle - Treat QoS traffic with higher priority than the BE traffi ...
Investor Presentation
... the essential attributes of a native service while transporting over a Packet Switched Network (IP, Ethernet, and MPLS) – PWs are virtual circuits that use MPLS/IP tunnels & control plane to emulate all Layer 2 transport services across an MPLS/IP network PWs are bidirectional (unlike MPLS LSPs) ...
... the essential attributes of a native service while transporting over a Packet Switched Network (IP, Ethernet, and MPLS) – PWs are virtual circuits that use MPLS/IP tunnels & control plane to emulate all Layer 2 transport services across an MPLS/IP network PWs are bidirectional (unlike MPLS LSPs) ...
Present
... telecommunication services and able to make use of multiple broadband, QoS-enabled transport technologies and in which service-related functions are independent from underlying transport-related technologies. It enables unfettered access for users to networks and to competing service providers and/o ...
... telecommunication services and able to make use of multiple broadband, QoS-enabled transport technologies and in which service-related functions are independent from underlying transport-related technologies. It enables unfettered access for users to networks and to competing service providers and/o ...
6:2=3+0
... subnetworks, it allows you to create a network of interconnecting subnetworks. Each data link on this network would then have a unique network/subnetwork ID. Any device, or gateway, connecting n networks/subnetworks has n distinct IP addresses, one for each network / subnetwork that it interconnects ...
... subnetworks, it allows you to create a network of interconnecting subnetworks. Each data link on this network would then have a unique network/subnetwork ID. Any device, or gateway, connecting n networks/subnetworks has n distinct IP addresses, one for each network / subnetwork that it interconnects ...
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.