Computer Networks and Internets
... Because ARP software is part of the network interface software, all higher-layer protocols and applications can use IP addresses exclusively, and remain completely unaware of hardware addresses ...
... Because ARP software is part of the network interface software, all higher-layer protocols and applications can use IP addresses exclusively, and remain completely unaware of hardware addresses ...
Improving the packet send-time accuracy in embedded devices
... 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 sink using D-ITG. ...
... 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 sink using D-ITG. ...
Routing - University of Pittsburgh
... multiple same-cost paths allowed (Equal-cost multipath routing(ECMP)) For each link, multiple cost metrics for different TOS (e.g., satellite link cost set “low” for best effort; ...
... multiple same-cost paths allowed (Equal-cost multipath routing(ECMP)) For each link, multiple cost metrics for different TOS (e.g., satellite link cost set “low” for best effort; ...
network-layer-addressing
... Flow Label: identify datagrams in same “flow.” (concept of“flow” not well defined). Next header: identify upper layer protocol for data ...
... Flow Label: identify datagrams in same “flow.” (concept of“flow” not well defined). Next header: identify upper layer protocol for data ...
Link State Routing
... OSPF (cont.) • The router doesn't have detailed information about network topology outside of its area, thereby reducing the size of its database • At the border of an area, a special routers called area border routers summarize the information about the area and send it to other areas • Among the ...
... OSPF (cont.) • The router doesn't have detailed information about network topology outside of its area, thereby reducing the size of its database • At the border of an area, a special routers called area border routers summarize the information about the area and send it to other areas • Among the ...
ppt in chapter 8
... If a network isn’t directly connected to the router, the router must use one of two ways to learn how to get to the remote network: Static routing: meaning that someone must hand-type all network locations into the routing table. Dynamic routing: In dynamic routing, a protocol on one router commu ...
... If a network isn’t directly connected to the router, the router must use one of two ways to learn how to get to the remote network: Static routing: meaning that someone must hand-type all network locations into the routing table. Dynamic routing: In dynamic routing, a protocol on one router commu ...
The Network Layer
... • When a route request arrives a node – Check (source, request ID) if it is duplicated; yes discards; no record it – Look up the destination in its route table. If a fresh route is known, send a Route Reply packet to the source. Fresh means the sequence # of the route is greater than or equal to t ...
... • When a route request arrives a node – Check (source, request ID) if it is duplicated; yes discards; no record it – Look up the destination in its route table. If a fresh route is known, send a Route Reply packet to the source. Fresh means the sequence # of the route is greater than or equal to t ...
«Performance Analysis for a New Medium Access Control Protocol I
... medium. • When a station reach the limit of successful transmission another station may win the contention by increasing it’s probability to gain medium access. • If a good channel is being detected the modulation rate can be change in order to transmit more packets in the specific time period which ...
... medium. • When a station reach the limit of successful transmission another station may win the contention by increasing it’s probability to gain medium access. • If a good channel is being detected the modulation rate can be change in order to transmit more packets in the specific time period which ...
www.eg.bucknell.edu
... to configure forwarding table, router 1d must determine towards which gateway it should forward packets for dest x this is also job of inter-AS routing protocol! hot potato routing: send packet towards closest of two ...
... to configure forwarding table, router 1d must determine towards which gateway it should forward packets for dest x this is also job of inter-AS routing protocol! hot potato routing: send packet towards closest of two ...
Chapter8
... next-hop_address This is the IP address of the next-hop router that will receive packets and forward them to the remote network, which must signify a router interface that’s on a directly connected network. You must be able to successfully ping the router interface before you can add the route. Impo ...
... next-hop_address This is the IP address of the next-hop router that will receive packets and forward them to the remote network, which must signify a router interface that’s on a directly connected network. You must be able to successfully ping the router interface before you can add the route. Impo ...
Error Detection and Correction
... The user access devices, called the endpoints, are connected through a UNI (User- to-Network Interface) to the switches inside the network. The switches are connected through NNI (Networkto-Network interface) . ...
... The user access devices, called the endpoints, are connected through a UNI (User- to-Network Interface) to the switches inside the network. The switches are connected through NNI (Networkto-Network interface) . ...
end-of-chapter questions
... 8-1. a) How does the postal service use hierarchical sorting? b) How does this simplify delivery decisions? 8-2. Give a non-network example of hierarchical addressing, and discuss how it reduces the amount of work needed in physical delivery. Do not use any example in the book, the postal service, o ...
... 8-1. a) How does the postal service use hierarchical sorting? b) How does this simplify delivery decisions? 8-2. Give a non-network example of hierarchical addressing, and discuss how it reduces the amount of work needed in physical delivery. Do not use any example in the book, the postal service, o ...
Layer 2 Data Link Frame
... Point-to-Point, ISDN, and Frame Relay interfaces Connects routers to external networks. The Layer 2 encapsulation can be different types including: PPP Frame Relay HDLC (High-Level Data Link Control). Note: MAC addresses are used only on Ethernet interfaces and are not on WAN interface ...
... Point-to-Point, ISDN, and Frame Relay interfaces Connects routers to external networks. The Layer 2 encapsulation can be different types including: PPP Frame Relay HDLC (High-Level Data Link Control). Note: MAC addresses are used only on Ethernet interfaces and are not on WAN interface ...
ppt
... Topology map at each node Route computation using Dijkstra’s algorithm OSPF advertisement carries one entry per neighbor ...
... Topology map at each node Route computation using Dijkstra’s algorithm OSPF advertisement carries one entry per neighbor ...
chapter4a
... routers: no state about end-to-end connections no network-level concept of “connection” packets typically routed using destination host ID packets between same source-dest pair may take different paths application transport network data link 1. Send data physical ...
... routers: no state about end-to-end connections no network-level concept of “connection” packets typically routed using destination host ID packets between same source-dest pair may take different paths application transport network data link 1. Send data physical ...
chapter5d
... configure PPP link (max. frame length, authentication) learn/configure network layer information for IP: carry IP Control Protocol (IPCP) msgs (protocol field: 8021) to configure/learn IP address 5: DataLink Layer 5a-19 ...
... configure PPP link (max. frame length, authentication) learn/configure network layer information for IP: carry IP Control Protocol (IPCP) msgs (protocol field: 8021) to configure/learn IP address 5: DataLink Layer 5a-19 ...
Chapter 17-20
... Means that the boundary between prefix and suffix occurs after the first 17 bits Each network can be as large or small as needed (power of two) ...
... Means that the boundary between prefix and suffix occurs after the first 17 bits Each network can be as large or small as needed (power of two) ...
gz01-lecture08
... • What would happen if we had more than one network layer protocol? • Are there disadvantages to having only one network layer protocol? – Some loss of flexibility, but the gain in interoperability more than makes up for this – Because IP is embedded in applications and in interdomain routing, it is ...
... • What would happen if we had more than one network layer protocol? • Are there disadvantages to having only one network layer protocol? – Some loss of flexibility, but the gain in interoperability more than makes up for this – Because IP is embedded in applications and in interdomain routing, it is ...
Provisioning IP traffic across MAC based access networks of tree
... with a reach of 20 km, is sufficient. However, novel access systems with increased bandwidth and service offering are imminent. An important drive for high bandwidth is the need for full service access networks. Operators want to have one network that can serve voice, video and data services. Anothe ...
... with a reach of 20 km, is sufficient. However, novel access systems with increased bandwidth and service offering are imminent. An important drive for high bandwidth is the need for full service access networks. Operators want to have one network that can serve voice, video and data services. Anothe ...
CWSA_Session1_Nita-Rotaru - The Center for Wireless Systems
... Attacker disseminates request quickly throughout the network suppressing any later legitimate request ...
... Attacker disseminates request quickly throughout the network suppressing any later legitimate request ...
Performance Analysis of VoMAN using Routing Protocols to Improve
... Transport Protocol (RTP), RTP Control Protocol (RTCP). These RTP packets are encapsulated into transport protocols to transmission over IP. UDP is the most preferable protocol for transferring voice over IP network. Quality of Service (QoS) is set of service requirements that are met by the network ...
... Transport Protocol (RTP), RTP Control Protocol (RTCP). These RTP packets are encapsulated into transport protocols to transmission over IP. UDP is the most preferable protocol for transferring voice over IP network. Quality of Service (QoS) is set of service requirements that are met by the network ...
4th Edition: Chapter 1 - Universidad de Sevilla
... Q: human analogies of reserved resources (circuit switching) versus on-demand allocation (packet-switching)? Introduction 1-37 ...
... Q: human analogies of reserved resources (circuit switching) versus on-demand allocation (packet-switching)? Introduction 1-37 ...
error-free
... wireline media may be considered errorfree ,the wireless link is actually in an errorstate the packet will be corrupted and the transmission will waste transmission resources in error-state ...
... wireline media may be considered errorfree ,the wireless link is actually in an errorstate the packet will be corrupted and the transmission will waste transmission resources in error-state ...
