Review for midterm
... “pieces” for allocation – Resource piece idle if not used by owning call (no sharing) ...
... “pieces” for allocation – Resource piece idle if not used by owning call (no sharing) ...
TCP/IP Concepts (Part 1)
... Total Length – defines entire packet size (header +data) in bytes. The minimum-length is 20 bytes (20-byte header + 0 bytes data) and the maximum is 65,535. Subnetworks may impose restrictions on the size, in 23 which case packets must be fragmented. Fragmentation is handled in either the host or ...
... Total Length – defines entire packet size (header +data) in bytes. The minimum-length is 20 bytes (20-byte header + 0 bytes data) and the maximum is 65,535. Subnetworks may impose restrictions on the size, in 23 which case packets must be fragmented. Fragmentation is handled in either the host or ...
media access control - Faculty
... Explain the role of Data Link layer protocols in data transmission. Describe how the Data Link layer prepares data for transmission on network media. Describe the different types of media access control methods. Identify several common logical network topologies and describe how the logical topology ...
... Explain the role of Data Link layer protocols in data transmission. Describe how the Data Link layer prepares data for transmission on network media. Describe the different types of media access control methods. Identify several common logical network topologies and describe how the logical topology ...
The OSI Reference Model - Department of Computing
... layers in the TCP/IP model have the same name as layers in the OSI model. Do not confuse the layers of the two models. ...
... layers in the TCP/IP model have the same name as layers in the OSI model. Do not confuse the layers of the two models. ...
QoS in Converged Networks
... 1. H.245 negotiates the codec and establishes RTP sockets that will be used on either end of the media channel. These two sockets—the IP addresses and port numbers—together form the session ID that RSVP will use to refer to this RTPsession. RSVP calls the session ID a flow ID. 2. The gateway router ...
... 1. H.245 negotiates the codec and establishes RTP sockets that will be used on either end of the media channel. These two sockets—the IP addresses and port numbers—together form the session ID that RSVP will use to refer to this RTPsession. RSVP calls the session ID a flow ID. 2. The gateway router ...
Lecture - 12
... » Flow label field(24bits): Used by hosts requesting special handling . Allows a source and destination to set up a pseudoconnection with particular properties and requirements. In effect, it attempts to combine the flexibility of a datagram and virtual circuit » Payload length field(16bits): tells ...
... » Flow label field(24bits): Used by hosts requesting special handling . Allows a source and destination to set up a pseudoconnection with particular properties and requirements. In effect, it attempts to combine the flexibility of a datagram and virtual circuit » Payload length field(16bits): tells ...
Lecture 4: Network Layer Security
... • Loose Source Routing is an IP option which can be used for address translation. LSR is also used to implement mobility in IP networks. • LSR uses a source routing option in TCP/IP to record the set of routers a packet must visit. • The destination of the packet is replaced with the next router the ...
... • Loose Source Routing is an IP option which can be used for address translation. LSR is also used to implement mobility in IP networks. • LSR uses a source routing option in TCP/IP to record the set of routers a packet must visit. • The destination of the packet is replaced with the next router the ...
Part 1 - CSE Labs User Home Pages
... Each end-end “data stream” divided into packets • users A, B packets share network resources • each packet uses full link bandwidth • resources used as needed Bandwidth division into “pieces” Dedicated allocation Resource reservation CSci4211: ...
... Each end-end “data stream” divided into packets • users A, B packets share network resources • each packet uses full link bandwidth • resources used as needed Bandwidth division into “pieces” Dedicated allocation Resource reservation CSci4211: ...
Cisco Voice Programs - In Search of a Strategy
... •Preserves Traffic Classes •Avoids Global Synchronization ...
... •Preserves Traffic Classes •Avoids Global Synchronization ...
Slide 1
... else if /*case 2*/: destAddr is on a directly connected network (= on-link): for every physical interface IP address A and subnet mask SM if(A & SM = destAddr & SM) then send directly to destAddr; leave ...
... else if /*case 2*/: destAddr is on a directly connected network (= on-link): for every physical interface IP address A and subnet mask SM if(A & SM = destAddr & SM) then send directly to destAddr; leave ...
Lecture 21
... if adapter receives frame with matching destination address, or with broadcast address (eg ARP packet), it passes data in frame to network layer protocol otherwise, adapter discards frame Type: indicates higher layer protocol (mostly IP ...
... if adapter receives frame with matching destination address, or with broadcast address (eg ARP packet), it passes data in frame to network layer protocol otherwise, adapter discards frame Type: indicates higher layer protocol (mostly IP ...
ppt
... router will forward packet to a router on the next network over and so on… until packet arrives at router on same network as destination; then, router sends packet directly to destination host Requirements every host needs to know IP address of the router on its LAN every router needs a ro ...
... router will forward packet to a router on the next network over and so on… until packet arrives at router on same network as destination; then, router sends packet directly to destination host Requirements every host needs to know IP address of the router on its LAN every router needs a ro ...
Network Measurements
... -----------------------------------------------------------[ 6] local 134.79.16.101 port 57582 connected with 192.65.185.20 port 5008 [ 5] local 134.79.16.101 port 57581 connected with 192.65.185.20 port 5008 [ 4] local 134.79.16.101 port 57580 connected with 192.65.185.20 port 5008 ...
... -----------------------------------------------------------[ 6] local 134.79.16.101 port 57582 connected with 192.65.185.20 port 5008 [ 5] local 134.79.16.101 port 57581 connected with 192.65.185.20 port 5008 [ 4] local 134.79.16.101 port 57580 connected with 192.65.185.20 port 5008 ...
Ch06
... retransmission, TCP systems acknowledge only the number of bytes they have received correctly. With negative acknowledgment, the computer specifies the information that it has not received correctly. ...
... retransmission, TCP systems acknowledge only the number of bytes they have received correctly. With negative acknowledgment, the computer specifies the information that it has not received correctly. ...
Diapositive 1
... When several nodes transmit simultaneously, a receiver can successfully receive the data sent by the desired transmitter only if the interference from the other nodes is sufficiently small: SINR>β ...
... When several nodes transmit simultaneously, a receiver can successfully receive the data sent by the desired transmitter only if the interference from the other nodes is sufficiently small: SINR>β ...
slides ppt
... • Let xr be the mean bandwidth of flow r [pkts/sec] Let y be the total bandwidth of all flows [pkts/sec] Let C be the total available capacity [pkts/sec] • TCP and the network act so as to solve maximise r U(xr) - P(y,C) over xr0 where y=r xr ...
... • Let xr be the mean bandwidth of flow r [pkts/sec] Let y be the total bandwidth of all flows [pkts/sec] Let C be the total available capacity [pkts/sec] • TCP and the network act so as to solve maximise r U(xr) - P(y,C) over xr0 where y=r xr ...
DVoIP: DYNAMIC VOICE-OVER-IP TRANSFORMATIONS FOR QUALITY OF SERVICE IN
... transcoder and the frame aggregator. Audio transcoding is translation between audio codecs, which allows the system to convert traffic being sent from the VoIP application using a high-bandwidth codec into a lower bandwidth codec suitable for transmission over a constrained link. Frame aggregation, ...
... transcoder and the frame aggregator. Audio transcoding is translation between audio codecs, which allows the system to convert traffic being sent from the VoIP application using a high-bandwidth codec into a lower bandwidth codec suitable for transmission over a constrained link. Frame aggregation, ...
Voice-TFCC
... • Inefficient use of network bandwidth (IP/UDP/RTP protocol headers) • Fairness problem with TCP traffic caused by the transmission of large number of uncontrolled UDP bursts of small VoIP packets • UDP traffic is unresponsive to congestion and can completely ...
... • Inefficient use of network bandwidth (IP/UDP/RTP protocol headers) • Fairness problem with TCP traffic caused by the transmission of large number of uncontrolled UDP bursts of small VoIP packets • UDP traffic is unresponsive to congestion and can completely ...