Chapter 12 NM Tools and Systems
... Displays addresses and port numbers in numerical form. -p proto Shows connections for the protocol specified by proto; proto may be TCP or UDP. If used with the -s option to display per-protocol statistics, proto may be TCP, UDP, or IP. -r Displays the routing table. -s Displays per-protocol statist ...
... Displays addresses and port numbers in numerical form. -p proto Shows connections for the protocol specified by proto; proto may be TCP or UDP. If used with the -s option to display per-protocol statistics, proto may be TCP, UDP, or IP. -r Displays the routing table. -s Displays per-protocol statist ...
The Internet: How It Works
... • Enable the purchase of goods and services over the Internet – File servers • Provide remote storage space for files that users can download © 2008 Prentice-Hall, Inc. ...
... • Enable the purchase of goods and services over the Internet – File servers • Provide remote storage space for files that users can download © 2008 Prentice-Hall, Inc. ...
GPSR: Greedy Perimeter Stateless Routing for Wireless Networks
... Traditional shortest-path (DV and LS) algorithms require state proportional to the number of reachable destinations at each router. On-demand ad-hoc routing algorithms require state at least proportional to the number of destinations a node forwards packets toward, and often more, as in the case in ...
... Traditional shortest-path (DV and LS) algorithms require state proportional to the number of reachable destinations at each router. On-demand ad-hoc routing algorithms require state at least proportional to the number of destinations a node forwards packets toward, and often more, as in the case in ...
ch05 - The University of Texas at Dallas
... UDP purpose real-time applications IP – Real-Time Streaming Protocol (RTSP) • Sets up virtual circuits for audio-video applications – Real-Time Transport Protocol (RTP) • Used after a virtual connection setup by RSVP or RTSP • Adds a sequence number and a timestamp for helping applications to synchr ...
... UDP purpose real-time applications IP – Real-Time Streaming Protocol (RTSP) • Sets up virtual circuits for audio-video applications – Real-Time Transport Protocol (RTP) • Used after a virtual connection setup by RSVP or RTSP • Adds a sequence number and a timestamp for helping applications to synchr ...
GPSR: Greedy Perimeter Stateless Routing for Wireless Networks
... Upon not receiving a beacon from a neighbor for longer than timeout interval T , a GPSR router assumes that the neighbor has failed or gone out-of-range, and deletes the neighbor from its table. The 802.11 MAC layer also gives direct indications of link-level retransmission failures to neighbors; we ...
... Upon not receiving a beacon from a neighbor for longer than timeout interval T , a GPSR router assumes that the neighbor has failed or gone out-of-range, and deletes the neighbor from its table. The 802.11 MAC layer also gives direct indications of link-level retransmission failures to neighbors; we ...
ppt
... • Each protocol layer needs to provide some hooks to upper layer protocols • Demultiplexing: identify which upper layer protocol packet belongs to • E.g., port numbers allow TCP/UDP to identify target application • Ethernet uses Type field ...
... • Each protocol layer needs to provide some hooks to upper layer protocols • Demultiplexing: identify which upper layer protocol packet belongs to • E.g., port numbers allow TCP/UDP to identify target application • Ethernet uses Type field ...
L09_TCP_IP - Interactive Computing Lab
... connections between 2 hosts. Web browsers do this Example: link of rate R supporting 9 connections; ...
... connections between 2 hosts. Web browsers do this Example: link of rate R supporting 9 connections; ...
Slides - WSU Online
... How many packets need to be sent? How many packets have been sent? How many packets are left to be sent? If there is an error, which packets are needed to be sent again? ...
... How many packets need to be sent? How many packets have been sent? How many packets are left to be sent? If there is an error, which packets are needed to be sent again? ...
An Overview of Cellular IP
... Cellular mobile telephony systems are based on a di erent concept from that of Mobile IP. Instead of aiming at global mobility support, cellular systems are optimized to provide fast and smooth hando within restricted geographical areas. In the area of coverage, mobile users have wireless access to ...
... Cellular mobile telephony systems are based on a di erent concept from that of Mobile IP. Instead of aiming at global mobility support, cellular systems are optimized to provide fast and smooth hando within restricted geographical areas. In the area of coverage, mobile users have wireless access to ...
Pi: A Path Identification Mechanism to Defend against DDoS attacks
... attack problem. Since DDoS attacks often involve compromised machines, co-opted by a group of hackers exploiting other security vulnerabilities, there is little incentive for the victim to identify the path to specific attacker machines other than the need to provide information to help upstream ISP ...
... attack problem. Since DDoS attacks often involve compromised machines, co-opted by a group of hackers exploiting other security vulnerabilities, there is little incentive for the victim to identify the path to specific attacker machines other than the need to provide information to help upstream ISP ...
ch13
... • Enable the purchase of goods and services over the Internet – File servers • Provide remote storage space for files that users can download © 2007 Prentice-Hall, Inc. ...
... • Enable the purchase of goods and services over the Internet – File servers • Provide remote storage space for files that users can download © 2007 Prentice-Hall, Inc. ...
1 H O W W I - F I ...
... A point-to-point radio service operates a communication channel that carries information from a transmitter to a single receiver. The opposite of point-to-point is a broadcast service (such as a radio or television station) that sends the same signal to many receivers at the same time. Spread spectr ...
... A point-to-point radio service operates a communication channel that carries information from a transmitter to a single receiver. The opposite of point-to-point is a broadcast service (such as a radio or television station) that sends the same signal to many receivers at the same time. Spread spectr ...
Slides - UB Computer Science and Engineering
... So that any two hosts can send packets to each other Resulting network of networks is very complex Evolution was driven by economics and national policies Let’s take a stepwise approach to describe current Internet structure ...
... So that any two hosts can send packets to each other Resulting network of networks is very complex Evolution was driven by economics and national policies Let’s take a stepwise approach to describe current Internet structure ...
Linux+ Guide to Linux Certification
... • Network adapters come in a variety of types depending on access method, network transmission speed, connector interfaces, type of compatible motherboard, and manufacturer • Desktops or tower PCs may use an expansion card NIC, which must match the system’s bus • NICs are designed to be used with ei ...
... • Network adapters come in a variety of types depending on access method, network transmission speed, connector interfaces, type of compatible motherboard, and manufacturer • Desktops or tower PCs may use an expansion card NIC, which must match the system’s bus • NICs are designed to be used with ei ...
module02-reviewV2
... Different Views of Networking • Different Layers of the protocol stack have a different view of the network. This is HTTP’s and TCP’s view of the network. ...
... Different Views of Networking • Different Layers of the protocol stack have a different view of the network. This is HTTP’s and TCP’s view of the network. ...
Mobiiliverkot ja liikkuvuuden hallinta
... • In the “Brute Force” - solution this is updated in all routers! In practice this is not feasible! • An analysis of 128 bits in this DB requires 8 reads which basically is not a problem. • The biggest technical problem is updates! • Mobility architectures must decrease mobility update traffic to lo ...
... • In the “Brute Force” - solution this is updated in all routers! In practice this is not feasible! • An analysis of 128 bits in this DB requires 8 reads which basically is not a problem. • The biggest technical problem is updates! • Mobility architectures must decrease mobility update traffic to lo ...
98-366 Slides Lesson 2
... • Inbound and outbound ports are controlled by this layer. When you think “ports,” think the transport layer. • The unit of measurement used on this layer is sometimes referred to as segments or messages. All layers above this one use the terms “data” and “messages.” ...
... • Inbound and outbound ports are controlled by this layer. When you think “ports,” think the transport layer. • The unit of measurement used on this layer is sometimes referred to as segments or messages. All layers above this one use the terms “data” and “messages.” ...
571Lecture7
... • Extract samples from frame, and depending on position in frame, switch to output – each incoming sample has to get to the right output line and the right slot in the output frame ...
... • Extract samples from frame, and depending on position in frame, switch to output – each incoming sample has to get to the right output line and the right slot in the output frame ...
PDF
... number for the destination of which the source node is aware. A node receiving the RREQ may send a route reply (RREP) if it is either the destination or if it has a route to the destination with corresponding sequence number greater than or equal to that contained in the RREQ. If this is the case, i ...
... number for the destination of which the source node is aware. A node receiving the RREQ may send a route reply (RREP) if it is either the destination or if it has a route to the destination with corresponding sequence number greater than or equal to that contained in the RREQ. If this is the case, i ...
OSI Network Layer
... fragmenting the packet or fragmentation： the process of an intermediary device usually a router - will need to split up a packet when forwarding it from one media to a media with a smaller MTU 思科网络技术学院理事会. ...
... fragmenting the packet or fragmentation： the process of an intermediary device usually a router - will need to split up a packet when forwarding it from one media to a media with a smaller MTU 思科网络技术学院理事会. ...
Courtesy Course Technology/Cengage Learning
... Operate at Data Link OSI model layer Single input and single output ports Protocol independent Filtering database – Contains known MAC addresses and network locations ...
... Operate at Data Link OSI model layer Single input and single output ports Protocol independent Filtering database – Contains known MAC addresses and network locations ...
ComCom04-1 - Raouf Boutaba
... queuing elements [1]. Combining these elements into higher-level blocks creates a Traffic Condition Block (TCB), which can be configured through PBN. This involves the use of administratively prescribed policies that specify what actions should be executed in response to predefined events. Some of t ...
... queuing elements [1]. Combining these elements into higher-level blocks creates a Traffic Condition Block (TCB), which can be configured through PBN. This involves the use of administratively prescribed policies that specify what actions should be executed in response to predefined events. Some of t ...
TSIN02 Internetworking
... 1/2 of the users served by an ISP tend to use real time speech communication over the Internet, and use 10 kbit/s each. 1/4 of the users tend to like to stream mp3 songs, and use 100 kbit/s each. ¼ of the users like video applications, and use 1Mbit/s. The ISP routers connecting to the backbone can ...
... 1/2 of the users served by an ISP tend to use real time speech communication over the Internet, and use 10 kbit/s each. 1/4 of the users tend to like to stream mp3 songs, and use 100 kbit/s each. ¼ of the users like video applications, and use 1Mbit/s. The ISP routers connecting to the backbone can ...