internetworks - UNC School of Information and Library Science
... software, to access the network. Transport: responsible for source-to-destination (end-to-end) data transfer. Network: responsible for routing packets from source-to-dest across multiple networks. Data link: responsible for data transfer between neighboring network elements. Physical: coordi ...
... software, to access the network. Transport: responsible for source-to-destination (end-to-end) data transfer. Network: responsible for routing packets from source-to-dest across multiple networks. Data link: responsible for data transfer between neighboring network elements. Physical: coordi ...
Lecture Note Ch.20
... To find the time-to-live field, we skip 8 bytes. The time-to-live field is the ninth byte, which is 01. This means the packet can travel only one hop. The protocol field is the next byte (02), which means that the upper-layer protocol is IGMP. ...
... To find the time-to-live field, we skip 8 bytes. The time-to-live field is the ninth byte, which is 01. This means the packet can travel only one hop. The protocol field is the next byte (02), which means that the upper-layer protocol is IGMP. ...
pdf
... End-to-End Argument Operations should occur only at the end points … unless needed for performance optimization ...
... End-to-End Argument Operations should occur only at the end points … unless needed for performance optimization ...
lecture5 - Andrew.cmu.edu
... 15-441 Computer Networking Lecture 5 Data link Layer – Access Control ...
... 15-441 Computer Networking Lecture 5 Data link Layer – Access Control ...
AOSDistributedOSCommunication
... In circuit switching, the bit delay is constant during a connection, as opposed to packet switching, where packet queues may cause varying packet transfer delay. Each circuit cannot be used by other callers until the circuit is released and a new connection is set up. Even if no actual communication ...
... In circuit switching, the bit delay is constant during a connection, as opposed to packet switching, where packet queues may cause varying packet transfer delay. Each circuit cannot be used by other callers until the circuit is released and a new connection is set up. Even if no actual communication ...
ppt
... • This speeds up the algo by reducing the number of comparisons • 3 is allowed to send to 1. No need to check 41 and 51 ...
... • This speeds up the algo by reducing the number of comparisons • 3 is allowed to send to 1. No need to check 41 and 51 ...
Lecture Slides - Stony Brook University
... CAM table exhaustion: can turn a switch into a hub macof (part of dsniff) ...
... CAM table exhaustion: can turn a switch into a hub macof (part of dsniff) ...
1-up
... TCP segment size is not fixed. It is discovered during connection setup. – Set don’t fragment bit in IP header. If packet cannot be transmitted, router sends an ICMP error message ...
... TCP segment size is not fixed. It is discovered during connection setup. – Set don’t fragment bit in IP header. If packet cannot be transmitted, router sends an ICMP error message ...
Improving the packet send-time accuracy in embedded devices
... Test device sends packet trains (consisted of 50 packets) at different sending rates. We used both tcpdump (run on the test device) and DAG card (installed in external workstation) to capture the packet timestamps. The test device generates different number of cross-traffic flows to the traffic ...
... Test device sends packet trains (consisted of 50 packets) at different sending rates. We used both tcpdump (run on the test device) and DAG card (installed in external workstation) to capture the packet timestamps. The test device generates different number of cross-traffic flows to the traffic ...
2/6 Matt - Dr. John Durrett
... (3) gateway [i.e., the IP address of the host’s gateway/router] (4) interface [i.e., the IP address of a host interface] (5) metric [indicates the “cost” of the route, smaller is better] ...
... (3) gateway [i.e., the IP address of the host’s gateway/router] (4) interface [i.e., the IP address of a host interface] (5) metric [indicates the “cost” of the route, smaller is better] ...
cpt1 - NDSU Computer Science
... SM Time-division, but on demand, not fixed. – Reschedule link on a per-packet basis – Packets of different sources interleaved on link – Buffer packets that are contending for the link – Packet queue processed FIFO/priority – Buffer overflow is called congestion Physical link shared over time (like ...
... SM Time-division, but on demand, not fixed. – Reschedule link on a per-packet basis – Packets of different sources interleaved on link – Buffer packets that are contending for the link – Packet queue processed FIFO/priority – Buffer overflow is called congestion Physical link shared over time (like ...
No Slide Title
... Dial-up – This method is used for modem to modem data communication over the Public Switched Telephone Network (PSTN). Both the source and destination must have compatible modems ...
... Dial-up – This method is used for modem to modem data communication over the Public Switched Telephone Network (PSTN). Both the source and destination must have compatible modems ...
ppt
... interface to another • Usually done within a router between external and internal network • What/How to filter? Packet Header Fields IP source and destination addresses Application port numbers ICMP message types/ Protocol options etc. ...
... interface to another • Usually done within a router between external and internal network • What/How to filter? Packet Header Fields IP source and destination addresses Application port numbers ICMP message types/ Protocol options etc. ...
Application Layer 1 TCP: Implementation Details TCP Segment Size
... TCP segment size is not fixed. It is discovered during connection setup. – Set don’t fragment bit in IP header. If packet cannot be transmitted, router sends an ICMP error message ...
... TCP segment size is not fixed. It is discovered during connection setup. – Set don’t fragment bit in IP header. If packet cannot be transmitted, router sends an ICMP error message ...
set_9
... Ñ Two major families fo congestion control: Openloop, closed-loop. Ñ Open-loop: Prevent conditions that lead to congestion, e.g. Leacky bucket, token bucket: ...
... Ñ Two major families fo congestion control: Openloop, closed-loop. Ñ Open-loop: Prevent conditions that lead to congestion, e.g. Leacky bucket, token bucket: ...
IEEE 802.11 Wireless LAN Draft Standard
... Performance of IEEE802.11b • Consider how the situation in which N hosts of different bit rate compete for the radio channel. N-1 hosts use the high transmission rate R = 11Mb/s and one host transmits at a degraded rate R = 5.5, 2, or 1Mb/s ...
... Performance of IEEE802.11b • Consider how the situation in which N hosts of different bit rate compete for the radio channel. N-1 hosts use the high transmission rate R = 11Mb/s and one host transmits at a degraded rate R = 5.5, 2, or 1Mb/s ...