Bell Aliant Dedicated Internet Access
... a direct connection to the global Internet. Our Dedicated Internet customers range from small offices to enterprise, servicing hosting companies and Internet service providers, all who require reliability and proactive customer support which they have come to expect from Bell Aliant. Bell Aliant is ...
... a direct connection to the global Internet. Our Dedicated Internet customers range from small offices to enterprise, servicing hosting companies and Internet service providers, all who require reliability and proactive customer support which they have come to expect from Bell Aliant. Bell Aliant is ...
Plugging the Leaks Without Unplugging Your Network in the Midst of
... In disaster situations normal operating procedures cease to be in effect. Two examples are the Atlantic hurricane Katrina [1], a natural disaster, which hit the southeastern United States in 2005; and the Russian attack on the nation of Georgia in 2008 [2], a man-made disaster. In both cases, Intern ...
... In disaster situations normal operating procedures cease to be in effect. Two examples are the Atlantic hurricane Katrina [1], a natural disaster, which hit the southeastern United States in 2005; and the Russian attack on the nation of Georgia in 2008 [2], a man-made disaster. In both cases, Intern ...
Final presentation
... Packet Filtering prevent insider system directly connecting to the modem ...
... Packet Filtering prevent insider system directly connecting to the modem ...
PDF
... communication approach called RKT-NoC. The reliable switch being proposed incorporates an online routing fault detection mechanism based on modified XY-routing algorithm [5].The hamming ECC is considered for our RKT-switch, in order to provide a convenient tradeoff between area overhead and error co ...
... communication approach called RKT-NoC. The reliable switch being proposed incorporates an online routing fault detection mechanism based on modified XY-routing algorithm [5].The hamming ECC is considered for our RKT-switch, in order to provide a convenient tradeoff between area overhead and error co ...
IPTV
... Wireless IPTV over WiMAX • IPTV transmission requires higher payload capacity, therefore, it poses a challenge in providing maximum service, efficient delivery of IP based payload including voice, video, multimedia and Internet over wireless. • For real time streaming video services, UDP ports can ...
... Wireless IPTV over WiMAX • IPTV transmission requires higher payload capacity, therefore, it poses a challenge in providing maximum service, efficient delivery of IP based payload including voice, video, multimedia and Internet over wireless. • For real time streaming video services, UDP ports can ...
R i - Computer Science and Engineering
... – Use state-of-the-art network measurement techniques to measure traffic conditions – Find at run-time optimal path load-distribution for measured traffic profile – No need to change previous path load-distribution if it can handle current traffic condition – only change when necessary ...
... – Use state-of-the-art network measurement techniques to measure traffic conditions – Find at run-time optimal path load-distribution for measured traffic profile – No need to change previous path load-distribution if it can handle current traffic condition – only change when necessary ...
Routing
... destination based on prior experience. Forward a message if higher probability than previous hop. Example: Prophet routing protocol (Sami Network ...
... destination based on prior experience. Forward a message if higher probability than previous hop. Example: Prophet routing protocol (Sami Network ...
Denial of Service Attacks - Computer Science and Engineering
... • use modified TCP connection handling code • cryptographically encode critical information in a cookie that is sent as the server’s initial sequence ...
... • use modified TCP connection handling code • cryptographically encode critical information in a cookie that is sent as the server’s initial sequence ...
Network Architectures - Computing Sciences
... Accepts messages of any length from upper layers Connection-Oriented Uses 3-way handshake to establish connection 1. A sends ‘Synchronize’ (SYN) message to B 2. B sends ‘Synchronize Acknowledgement’ (SYN-ACK) message back to A 3. A sends a ‘Forward Acknowledgment’ (ACK) to B 4. Connection between A ...
... Accepts messages of any length from upper layers Connection-Oriented Uses 3-way handshake to establish connection 1. A sends ‘Synchronize’ (SYN) message to B 2. B sends ‘Synchronize Acknowledgement’ (SYN-ACK) message back to A 3. A sends a ‘Forward Acknowledgment’ (ACK) to B 4. Connection between A ...
Lecture #2
... attacks on Internet infrastructure: infecting/attacking hosts: spyware, virus, worms, Trojan Horse, unauthorized access, and malware in geneal • Malware: sw designed to infiltrate or damage a computer system w/o the owner’s informed consent [Wikipedia]; based on intention of its creator, rather ...
... attacks on Internet infrastructure: infecting/attacking hosts: spyware, virus, worms, Trojan Horse, unauthorized access, and malware in geneal • Malware: sw designed to infiltrate or damage a computer system w/o the owner’s informed consent [Wikipedia]; based on intention of its creator, rather ...
Internet Overview: Network Switching
... attacks on Internet infrastructure: infecting/attacking hosts: spyware, virus, worms, Trojan Horse, unauthorized access, and malware in geneal • Malware: sw designed to infiltrate or damage a computer system w/o the owner’s informed consent [Wikipedia]; based on intention of its creator, rather ...
... attacks on Internet infrastructure: infecting/attacking hosts: spyware, virus, worms, Trojan Horse, unauthorized access, and malware in geneal • Malware: sw designed to infiltrate or damage a computer system w/o the owner’s informed consent [Wikipedia]; based on intention of its creator, rather ...
Lecture15Slides
... Over a unicast network service, separate copies of the data are sent from the source to each destination. Over a multicast network service, the data is sent from the source only once and the network is responsible for transmitting the data to multiple locations. Multicasting is more efficient for ma ...
... Over a unicast network service, separate copies of the data are sent from the source to each destination. Over a multicast network service, the data is sent from the source only once and the network is responsible for transmitting the data to multiple locations. Multicasting is more efficient for ma ...
DVoIP: DYNAMIC VOICE-OVER-IP TRANSFORMATIONS FOR QUALITY OF SERVICE IN
... To evaluate performance, analytical results for DVoIP were computed assuming a 128 kilobits per second (kbps) link. The values presented include overhead due to IP, UDP, and RTP headers, as well as additional overhead incurred by DVoIP headers. Prototype DVoIP system overhead is approximately 3.5 by ...
... To evaluate performance, analytical results for DVoIP were computed assuming a 128 kilobits per second (kbps) link. The values presented include overhead due to IP, UDP, and RTP headers, as well as additional overhead incurred by DVoIP headers. Prototype DVoIP system overhead is approximately 3.5 by ...
Scaling the Network: The Internet Protocol Networking CS 3470, Section 1
... An arbitrary collection of networks interconnected to provide some sort of host-host packet delivery service ...
... An arbitrary collection of networks interconnected to provide some sort of host-host packet delivery service ...
Introduction Computer Network. Interconnected collection of
... ∗ Keyboard receives data and puts it in computer memory as a sequence of bits g ∗ Data goes from memory to modem over local communications bus of the computer, and is denoted by g(t) during this transition phase ∗ It is picked up by modem (transmitter) and converted to sequence of voltage shifts (di ...
... ∗ Keyboard receives data and puts it in computer memory as a sequence of bits g ∗ Data goes from memory to modem over local communications bus of the computer, and is denoted by g(t) during this transition phase ∗ It is picked up by modem (transmitter) and converted to sequence of voltage shifts (di ...
Lecture 1 Introduction to the Computers
... • Tables of DNs & IP addresses are distributed throughout the Internet on numerous servers • There is a DNS server at most ISPs. It converts the domain names in our Internet requests to actual IP addresses • In case it does not have a particular domain name in its table, it makes a request to anothe ...
... • Tables of DNs & IP addresses are distributed throughout the Internet on numerous servers • There is a DNS server at most ISPs. It converts the domain names in our Internet requests to actual IP addresses • In case it does not have a particular domain name in its table, it makes a request to anothe ...
slides - network systems lab @ sfu
... router knows physically-connected neighbors, link costs to neighbors iterative process of computation, exchange of info with neighbors “distance vector” algorithms ...
... router knows physically-connected neighbors, link costs to neighbors iterative process of computation, exchange of info with neighbors “distance vector” algorithms ...
Hijacking, Denial of Service, and Intrusion Detection
... • Each host on the LAN maintains a cache of IPMAC mappings • An attacker can poison ARP caches by spoofing ARP packets • Poisoning – injecting false information into a data store • Spoofing – forging the source of a packet ...
... • Each host on the LAN maintains a cache of IPMAC mappings • An attacker can poison ARP caches by spoofing ARP packets • Poisoning – injecting false information into a data store • Spoofing – forging the source of a packet ...
pptx - Caltech
... A DHCP server maintains a pool of available IP addresses A host that wants to connect to LAN requests a dynamic IP address of the DHCP server Once granted, the host periodically renew its IP When the host leaves and the IP address expires, the DHCP server puts the IP back into the available ...
... A DHCP server maintains a pool of available IP addresses A host that wants to connect to LAN requests a dynamic IP address of the DHCP server Once granted, the host periodically renew its IP When the host leaves and the IP address expires, the DHCP server puts the IP back into the available ...
Investor Presentation
... • Traditional services are still the dominant element in the revenue stream ...
... • Traditional services are still the dominant element in the revenue stream ...
The core layer of the hierarchical design is the high
... layer switch to ensure adequate bandwidth to accommodate the traffic generated on the access layer, and provide fault tolerance in case a link is lost. • Because distribution layer switches accept incoming traffic from multiple access layer switches, they need to be able to forward all of that traff ...
... layer switch to ensure adequate bandwidth to accommodate the traffic generated on the access layer, and provide fault tolerance in case a link is lost. • Because distribution layer switches accept incoming traffic from multiple access layer switches, they need to be able to forward all of that traff ...