ppt - Zoo
... Client-Server Paradigm Typical network app has two pieces: client and server Client (C): initiates contact with server (“speaks first”) typically requests service from server for Web, client is implemented in browser; for e-mail, in mail ...
... Client-Server Paradigm Typical network app has two pieces: client and server Client (C): initiates contact with server (“speaks first”) typically requests service from server for Web, client is implemented in browser; for e-mail, in mail ...
Network Mobility
... IP mobility introduces the need for extra security because the point of attachment is not fixed, so the link between the mobile node and its home network should be considered insecure. In all potential mobile-IP scenarios, security will be a critical service enabler, ensuring that the mobile operato ...
... IP mobility introduces the need for extra security because the point of attachment is not fixed, so the link between the mobile node and its home network should be considered insecure. In all potential mobile-IP scenarios, security will be a critical service enabler, ensuring that the mobile operato ...
module_52
... IP solves the size problem by chopping the datagram into several smaller datagrams called fragments. Fragmentation is performed by routers and hosts. It is up to IP in the destination host to gather up the incoming fragments and rebuild the original datagram, before passing it to the upper layer. Fr ...
... IP solves the size problem by chopping the datagram into several smaller datagrams called fragments. Fragmentation is performed by routers and hosts. It is up to IP in the destination host to gather up the incoming fragments and rebuild the original datagram, before passing it to the upper layer. Fr ...
Seminar Report
... wireless systems and networks. The key concept is integrating the 4G capabilities with all of the existing mobile technologies through advanced technologies. Application adaptability and being highly dynamic are the main features of 4G services of interest to users. These features mean services can ...
... wireless systems and networks. The key concept is integrating the 4G capabilities with all of the existing mobile technologies through advanced technologies. Application adaptability and being highly dynamic are the main features of 4G services of interest to users. These features mean services can ...
network
... What if host 1 wants to send data to host 3 on a different LAN? – Router connecting the 2 LANs can be configured to respond to ARP requests for the networks it interconnects: proxy arp. – Another solution is for host 1 to recognize host 3 is on remote network and use default LAN address that handles ...
... What if host 1 wants to send data to host 3 on a different LAN? – Router connecting the 2 LANs can be configured to respond to ARP requests for the networks it interconnects: proxy arp. – Another solution is for host 1 to recognize host 3 is on remote network and use default LAN address that handles ...
Internet control protocols (ARP, DHCP, ICMP)
... • Router doesn’t really need to respond – Best effort means never having to say you’re sorry – So, IP could conceivably just silently drop packets ...
... • Router doesn’t really need to respond – Best effort means never having to say you’re sorry – So, IP could conceivably just silently drop packets ...
Document
... One example of a client/server network is a corporate environment where employees use a company e-mail server to send, receive and store e-mail. The e-mail client on an employee computer issues a request to the e-mail server for any unread mail. The server responds by sending the requested e-mail t ...
... One example of a client/server network is a corporate environment where employees use a company e-mail server to send, receive and store e-mail. The e-mail client on an employee computer issues a request to the e-mail server for any unread mail. The server responds by sending the requested e-mail t ...
Communication and network concepts
... A switch steps up on a bridge in that it has multiple ports. When a packet comes through a switch it is read to determine which computer to send the data to. This leads to increased efficiency in that packets are not going to computers that do not require them. Now the email analogy has multip ...
... A switch steps up on a bridge in that it has multiple ports. When a packet comes through a switch it is read to determine which computer to send the data to. This leads to increased efficiency in that packets are not going to computers that do not require them. Now the email analogy has multip ...
milcom 2004 - Institute for Human and Machine Cognition
... much more demanding on the network resources than control data. First, because there’s usually a much higher volume (in these types of environments) of sensor data than any other type of data, and second because while control traffic is point to point and intermittent (referring here to the control ...
... much more demanding on the network resources than control data. First, because there’s usually a much higher volume (in these types of environments) of sensor data than any other type of data, and second because while control traffic is point to point and intermittent (referring here to the control ...
Secure MANET Proposal
... “Black Hole” by advertising that it has the shortest path to a given destination and intercepting the packets sent to it. The attacker may create routes that do not exist and overflow the routing tables. Service may be denied by unnecessarily forwarding packets or requesting services. Proposal ...
... “Black Hole” by advertising that it has the shortest path to a given destination and intercepting the packets sent to it. The attacker may create routes that do not exist and overflow the routing tables. Service may be denied by unnecessarily forwarding packets or requesting services. Proposal ...
lecture 09 - chap 8
... CIDR impacts routing & forwarding Routing tables and routing protocols must carry IP address and mask Multiple entries may match a given IP destination address Example: Routing table may contain ...
... CIDR impacts routing & forwarding Routing tables and routing protocols must carry IP address and mask Multiple entries may match a given IP destination address Example: Routing table may contain ...
Cybersecurity and Information Assurance PPT
... • Snort’s open source network-based intrusion detection system has the ability to perform realtime traffic analysis and packet logging on Internet Protocol (IP) networks. • Snort performs protocol analysis, content searching, and content matching. • The program can also be used to detect probes or a ...
... • Snort’s open source network-based intrusion detection system has the ability to perform realtime traffic analysis and packet logging on Internet Protocol (IP) networks. • Snort performs protocol analysis, content searching, and content matching. • The program can also be used to detect probes or a ...
i2 dcn dragon
... infrastructures that are present within the R&E community • Troubleshooting tools that enable end user to know what to do when things don’t work ...
... infrastructures that are present within the R&E community • Troubleshooting tools that enable end user to know what to do when things don’t work ...
EE 122: Introduction To Communication Networks
... – Gambling that packets from different conversations won’t all arrive at the same time, so we don’t need enough capacity for all of them at their peak transmission rate – Assuming independence of traffic sources, can compute probability that there is enough capacity ...
... – Gambling that packets from different conversations won’t all arrive at the same time, so we don’t need enough capacity for all of them at their peak transmission rate – Assuming independence of traffic sources, can compute probability that there is enough capacity ...
Introduction - Wapanucka Public Schools
... regulations governing the district’s computer network. Failure to comply with the policy or regulation may result disciplinary action as well as suspension and/or revocation of computer/Internet access privileges. In addition, illegal activities are strictly prohibited. Any information pertaining or ...
... regulations governing the district’s computer network. Failure to comply with the policy or regulation may result disciplinary action as well as suspension and/or revocation of computer/Internet access privileges. In addition, illegal activities are strictly prohibited. Any information pertaining or ...
Part 2. Logical Network Design
... The purpose of a DMZ is to add an additional layer of security to an organization's local area network (LAN); an external attacker only has access to equipment in the DMZ, rather than any other part of the network. In a computer network, the hosts most vulnerable to attack are those that provide ser ...
... The purpose of a DMZ is to add an additional layer of security to an organization's local area network (LAN); an external attacker only has access to equipment in the DMZ, rather than any other part of the network. In a computer network, the hosts most vulnerable to attack are those that provide ser ...
Document
... • accepts messages of any length from the upperlayer protocols • provides transportation to a TCP peer • Connection oriented (more reliable than IP) • Port address is used to determine which connection a packet is destined • responsible for message fragmentation and reassembly • uses a sequencing fu ...
... • accepts messages of any length from the upperlayer protocols • provides transportation to a TCP peer • Connection oriented (more reliable than IP) • Port address is used to determine which connection a packet is destined • responsible for message fragmentation and reassembly • uses a sequencing fu ...
UDP—User Datagram Protocol - Department of Computer and
... • When sequence number wrap around, the wraparounded sequence number will confuse with previous sequence number. • Solution: optional timestamp field (32 bits) in TCP header, thus, 232232=264 is big enough right now. ...
... • When sequence number wrap around, the wraparounded sequence number will confuse with previous sequence number. • Solution: optional timestamp field (32 bits) in TCP header, thus, 232232=264 is big enough right now. ...
Northland Communications
... Speed: The speeds we identify for each level of Internet Services are the maximum upload and download speeds that customers are authorized to receive. We provision our customers’ modems and engineer our network to deliver the speeds to which our customers subscribe. However, we do not guarantee that ...
... Speed: The speeds we identify for each level of Internet Services are the maximum upload and download speeds that customers are authorized to receive. We provision our customers’ modems and engineer our network to deliver the speeds to which our customers subscribe. However, we do not guarantee that ...
Week One Agenda - Computing Sciences
... Internetworking Basics Networks and networking have grown exponentially over the last 30 years. This technology has evolved at light speed just to keep up with the huge increases in basic mission-critical user needs. Currently, there is a basic need to use VoIP, increase transmission speeds, and com ...
... Internetworking Basics Networks and networking have grown exponentially over the last 30 years. This technology has evolved at light speed just to keep up with the huge increases in basic mission-critical user needs. Currently, there is a basic need to use VoIP, increase transmission speeds, and com ...
Towards a framework for Network-based Malware detection System
... Malware detection: host-based malware detection and networkbased malware detection. The host-based malware detection uses the limited resources of the mobile devices and is prone to drain the battery power of the mobile devices. The networkbased malware detection delegates the analysis of the networ ...
... Malware detection: host-based malware detection and networkbased malware detection. The host-based malware detection uses the limited resources of the mobile devices and is prone to drain the battery power of the mobile devices. The networkbased malware detection delegates the analysis of the networ ...
Presentation
... teach the most effective methods of massive network topology analysis gain hands-on experience using these methods to obtain useful results ...
... teach the most effective methods of massive network topology analysis gain hands-on experience using these methods to obtain useful results ...
- adarshcampus.org
... There is a subtle but important distinction between VC setup at the network layer and connection setup at the transport layer (for example, the TCP three- way handshake we studied in Chapter 3). Connection setup at the transport layer involves only the two end systems. The two end systems agree ...
... There is a subtle but important distinction between VC setup at the network layer and connection setup at the transport layer (for example, the TCP three- way handshake we studied in Chapter 3). Connection setup at the transport layer involves only the two end systems. The two end systems agree ...
ACNS PowerPoint - Universal Studios
... – “Penalty-Box”: Traffic-shapers already support very flexible rules such as: (i) block infringer’s P2P traffic for X hours; (ii) block outgoing P2P traffic; (iii) assign lower priority and bandwidth limit to infringer; etc. – Resistant to Encryption: Only need to identify the type of traffic, not t ...
... – “Penalty-Box”: Traffic-shapers already support very flexible rules such as: (i) block infringer’s P2P traffic for X hours; (ii) block outgoing P2P traffic; (iii) assign lower priority and bandwidth limit to infringer; etc. – Resistant to Encryption: Only need to identify the type of traffic, not t ...