Chapter 1. Introduction to Data Communications
... • With a contention-based protocol, frames can be sent by two computers on the same network at the same time, in which case they will collide and become garbled. • CSMA/CD, can thus be termed “ordered chaos” because it tolerates, rather than avoids, collisions caused by two computers transmitting at ...
... • With a contention-based protocol, frames can be sent by two computers on the same network at the same time, in which case they will collide and become garbled. • CSMA/CD, can thus be termed “ordered chaos” because it tolerates, rather than avoids, collisions caused by two computers transmitting at ...
Chapter 6
... • With a contention-based protocol, frames can be sent by two computers on the same network at the same time, in which case they will collide and become garbled. • CSMA/CD, can thus be termed “ordered chaos” because it tolerates, rather than avoids, collisions caused by two computers transmitting at ...
... • With a contention-based protocol, frames can be sent by two computers on the same network at the same time, in which case they will collide and become garbled. • CSMA/CD, can thus be termed “ordered chaos” because it tolerates, rather than avoids, collisions caused by two computers transmitting at ...
CS 351- Fall 2005 - Rutgers University
... given below, what will be the size of the entire frame as presented to the IP layer at the destination? UDP: 50bytes, Ethernet:40bytes, DNS:20 byes, IP:30bytes ...
... given below, what will be the size of the entire frame as presented to the IP layer at the destination? UDP: 50bytes, Ethernet:40bytes, DNS:20 byes, IP:30bytes ...
1-Introduction :
... Time-to-Live The Time-to-Live (TTL) is an 8-bit binary value that indicates the remaining "life" of the packet. The TTL value is decreased by at least one each time the packet is processed by a router (that is, each hop). When the value becomes zero, the router discards or drops the packet and it is ...
... Time-to-Live The Time-to-Live (TTL) is an 8-bit binary value that indicates the remaining "life" of the packet. The TTL value is decreased by at least one each time the packet is processed by a router (that is, each hop). When the value becomes zero, the router discards or drops the packet and it is ...
Assignment Group A1
... depending on how the network switches are configured, placed, etc. On wireless networks, packet sniffers can usually only capture one channel at a time unless the host computer has multiple wireless interfaces that allow for multichannel capture. Once the raw packet data is captured, the packet snif ...
... depending on how the network switches are configured, placed, etc. On wireless networks, packet sniffers can usually only capture one channel at a time unless the host computer has multiple wireless interfaces that allow for multichannel capture. Once the raw packet data is captured, the packet snif ...
Wireless Data Tutorial
... Most mobile wireless channels have higher loss rates even with coding and power control A link-level RLP can lower the loss rate to a range ...
... Most mobile wireless channels have higher loss rates even with coding and power control A link-level RLP can lower the loss rate to a range ...
TERMINOLOGIES
... - A protocol platform, introduced by ITU-T, to support the integrated, high-speed transmission of data, audio and video in a seamless fashion. - ATM emerged as a suitable transport standard. The B-ISDN architecture model has been adopted by ATM, which is referred as the ATM reference ...
... - A protocol platform, introduced by ITU-T, to support the integrated, high-speed transmission of data, audio and video in a seamless fashion. - ATM emerged as a suitable transport standard. The B-ISDN architecture model has been adopted by ATM, which is referred as the ATM reference ...
ccna1-ch10
... •Router uses path determination to decide to which port the packet must be sent toward its destination. Routing the packet. •Each router along the path is called Hop. ...
... •Router uses path determination to decide to which port the packet must be sent toward its destination. Routing the packet. •Each router along the path is called Hop. ...
Internetworking, or IP and Networking Basics
... – bundles bits into frames and moves frames between hosts on the same link – a frame has a definite start, end, size » special delimiters to mark start and/or end ...
... – bundles bits into frames and moves frames between hosts on the same link – a frame has a definite start, end, size » special delimiters to mark start and/or end ...
IP Packet Switching
... • Checksum (16 bits) –Sum of all 16-bit words in the IP packet header –If any bits of the header are corrupted in transit –… the checksum won’t match at receiving host –Receiving host discards corrupted packets Sending host will retransmit the packet, if needed ...
... • Checksum (16 bits) –Sum of all 16-bit words in the IP packet header –If any bits of the header are corrupted in transit –… the checksum won’t match at receiving host –Receiving host discards corrupted packets Sending host will retransmit the packet, if needed ...
ch07
... • ATM-51 is designed for the desktop allowing 51.84 Mbps from computers to the switch. • Both these ATMs appear to be good choices for desktop connections when ATM backbone networks are used. However, industry has been very slow to accept either and have instead moved to Fast Ethernet which is both ...
... • ATM-51 is designed for the desktop allowing 51.84 Mbps from computers to the switch. • Both these ATMs appear to be good choices for desktop connections when ATM backbone networks are used. However, industry has been very slow to accept either and have instead moved to Fast Ethernet which is both ...
Intro to ATM - CS Course Webpages
... • Address resolution across multiple IP networks • If network unknown, request forwarded to other NHSs (Next-hop Server) NHS with knowledge will forward response to source router ...
... • Address resolution across multiple IP networks • If network unknown, request forwarded to other NHSs (Next-hop Server) NHS with knowledge will forward response to source router ...
Physical Carrier Sense Method
... the source addresses of the incoming frames along with the port number that the frame arrived on. • If the switch’s forwarding table does not have the destination address of the frame, it broadcasts the frame to all ports. • Thus, a switch starts by working like a hub and then works more and more as ...
... the source addresses of the incoming frames along with the port number that the frame arrived on. • If the switch’s forwarding table does not have the destination address of the frame, it broadcasts the frame to all ports. • Thus, a switch starts by working like a hub and then works more and more as ...
Rethinking the Service Model: Scaling Ethernet to a Million Nodes∗
... Figure 4: ARPs received per second over time on a LAN of 2456 hosts. H of its MAC address. D will also record the mapping between HIP and HM AC . Clearly the broadcast traffic presents a significant burden on a large network. Every host needs to process all ARP messages that circulate in the networ ...
... Figure 4: ARPs received per second over time on a LAN of 2456 hosts. H of its MAC address. D will also record the mapping between HIP and HM AC . Clearly the broadcast traffic presents a significant burden on a large network. Every host needs to process all ARP messages that circulate in the networ ...
Chapter 1. Introduction to Data Communications
... • ATM-51 is designed for the desktop allowing 51.84 Mbps from computers to the switch. • Both these ATMs appear to be good choices for desktop connections when ATM backbone networks are used. However, industry has been very slow to accept either and have instead moved to Fast Ethernet which is both ...
... • ATM-51 is designed for the desktop allowing 51.84 Mbps from computers to the switch. • Both these ATMs appear to be good choices for desktop connections when ATM backbone networks are used. However, industry has been very slow to accept either and have instead moved to Fast Ethernet which is both ...
ppt - Computer Science & Engineering
... framing, link access: encapsulate datagram into frame, adding header, trailer channel access if shared medium “MAC” addresses used in frame headers to identify source, dest different from IP address! ...
... framing, link access: encapsulate datagram into frame, adding header, trailer channel access if shared medium “MAC” addresses used in frame headers to identify source, dest different from IP address! ...
Data Link Layer
... data-link layer has responsibility of transferring datagram from one node to adjacent node over link ...
... data-link layer has responsibility of transferring datagram from one node to adjacent node over link ...
Ethernet
... Isolates collision domains resulting in higher total max throughput, does not limit the number of nodes nor geographical coverage Can connect different type Ethernet since it is a store and forward device Transparent: no need for any change to hosts LAN adapters ...
... Isolates collision domains resulting in higher total max throughput, does not limit the number of nodes nor geographical coverage Can connect different type Ethernet since it is a store and forward device Transparent: no need for any change to hosts LAN adapters ...
Document
... • Handles error and control messages • If router cannot deliver or forward a packet, it sends an ICMP “host unreachable” message to the source • If router receives packet that should have been sent to another router, it sends an ICMP “redirect” message to the sender; Sender modifies its routing tabl ...
... • Handles error and control messages • If router cannot deliver or forward a packet, it sends an ICMP “host unreachable” message to the source • If router receives packet that should have been sent to another router, it sends an ICMP “redirect” message to the sender; Sender modifies its routing tabl ...
L-4 - care4you
... eventually connected hundreds of universities and govt installations, using leased telephone lines. When satellite and radio networks were later added, the existing protocol had a trouble interworking with them, so a new reference architecture was needed, thus the ability to connect multiple network ...
... eventually connected hundreds of universities and govt installations, using leased telephone lines. When satellite and radio networks were later added, the existing protocol had a trouble interworking with them, so a new reference architecture was needed, thus the ability to connect multiple network ...
D E A L I N G W... J A C K S — S W I T...
... in a public place is that of users unplugging their laptop from the net and walking away without closing the session. In this case, we need the gateway to know that the user has gone away, and to remove filter rules allowing their machine access to the Internet. We tuned the TCP KEEPALIVE values on ...
... in a public place is that of users unplugging their laptop from the net and walking away without closing the session. In this case, we need the gateway to know that the user has gone away, and to remove filter rules allowing their machine access to the Internet. We tuned the TCP KEEPALIVE values on ...
8 - 1
... – Learn which computers are on each side of the bridge • By reading the source addresses on incoming frames and recording this information in forwarding tables ...
... – Learn which computers are on each side of the bridge • By reading the source addresses on incoming frames and recording this information in forwarding tables ...