ppt
... broadcast :: a single communications channel shared by all machines (addresses) on the network. Broadcast can be both a logical or a physical concept (e.g. Media Access Control (MAC) sublayer ) . multicast :: communications to a specified group. This requires a group address (e.g. – multimedia multi ...
... broadcast :: a single communications channel shared by all machines (addresses) on the network. Broadcast can be both a logical or a physical concept (e.g. Media Access Control (MAC) sublayer ) . multicast :: communications to a specified group. This requires a group address (e.g. – multimedia multi ...
Security Risks
... Key Encryption (cont’d.) • Public key encryption – Data encrypted using two keys – Private key: user knows – Public key: anyone may request ...
... Key Encryption (cont’d.) • Public key encryption – Data encrypted using two keys – Private key: user knows – Public key: anyone may request ...
Undergraduate Research Opportunity
... where C is a constant for a specific topology of the wireless network. See Gupta and Kumar [1]. Furthermore, P(A)max depends on the size of n, the number of nodes in the wireless network. When n increases, P(A) will follow to increase since nodes are more related to each other in the sense of distan ...
... where C is a constant for a specific topology of the wireless network. See Gupta and Kumar [1]. Furthermore, P(A)max depends on the size of n, the number of nodes in the wireless network. When n increases, P(A) will follow to increase since nodes are more related to each other in the sense of distan ...
Towards Wireless Overlay Network Architectures
... – 1300-1500 Retreat Overview and Introductions (Randy) » Retreat Overview & Sahara Progress, Randy ...
... – 1300-1500 Retreat Overview and Introductions (Randy) » Retreat Overview & Sahara Progress, Randy ...
Ch 1 Introduction Overview
... • ISO & the ITU are huge standards bodies that handle the world-wide telephone system & other global standards • The Internet protocols & reference model were created by a small group of about a dozen researchers – It is easy to see why the standards organizations might be confident that they could ...
... • ISO & the ITU are huge standards bodies that handle the world-wide telephone system & other global standards • The Internet protocols & reference model were created by a small group of about a dozen researchers – It is easy to see why the standards organizations might be confident that they could ...
SM-AMC (Advanced Management Card)
... The SM-AMC controls individual port cards, network and console connections and a display area with front panel controls located on the Network Protection Chassis. The Network Protection Chassis requires at least one port card and one supervisor card to operate. The SM-AMC agent port can be connected ...
... The SM-AMC controls individual port cards, network and console connections and a display area with front panel controls located on the Network Protection Chassis. The Network Protection Chassis requires at least one port card and one supervisor card to operate. The SM-AMC agent port can be connected ...
ROOTKIT VIRUS
... of files, or processes being executed by the third party without the user's knowledge. ...
... of files, or processes being executed by the third party without the user's knowledge. ...
Slide 1
... ─ Design a software router • data rate 10Gbps • Assuming small packets (64B) • Assuming each packet need 10,000 instruction to process ...
... ─ Design a software router • data rate 10Gbps • Assuming small packets (64B) • Assuming each packet need 10,000 instruction to process ...
module03-ipaddrV2
... Broadcast address – Host number is all ones, e.g., 128.143.255.255 – Broadcast goes to all hosts on the network – Often ignored due to security concerns ...
... Broadcast address – Host number is all ones, e.g., 128.143.255.255 – Broadcast goes to all hosts on the network – Often ignored due to security concerns ...
"The Distance learning and the networking technologies".
... 384/128 Kbps ADSL line can offers an acceptable QoS for 30 users. 512/128 Kbps ADSL Line increase the number of users to 40 (in terms of QoS). 1024/256 ADSL line can offer acceptable QoS to less then 50 and ...
... 384/128 Kbps ADSL line can offers an acceptable QoS for 30 users. 512/128 Kbps ADSL Line increase the number of users to 40 (in terms of QoS). 1024/256 ADSL line can offer acceptable QoS to less then 50 and ...
lecture20
... The blue armies want to synchronize their attacks. However, their only communication medium is to send messengers on foot down into the valley, where they might be captured and the message lost (i.e., they have to use an unreliable communication channel). The question is: does a protocol exist that ...
... The blue armies want to synchronize their attacks. However, their only communication medium is to send messengers on foot down into the valley, where they might be captured and the message lost (i.e., they have to use an unreliable communication channel). The question is: does a protocol exist that ...
Objectives Data Link Layer Data Link Layer Protocols Data Link
... Media Access Control (MAC) Addresses the frame Marks the beginning and ending of the frame Physical Layer Encodes the bits ...
... Media Access Control (MAC) Addresses the frame Marks the beginning and ending of the frame Physical Layer Encodes the bits ...
ppt
... • But finding ths empirically is hard! Many {power, rate} combinations, and not always easy to predict how each will perform • Alternate goal: lowest power for max needed rate • But this interacts with other people because you use more channel time to send the same data. Uh-oh. • Nice example of the ...
... • But finding ths empirically is hard! Many {power, rate} combinations, and not always easy to predict how each will perform • Alternate goal: lowest power for max needed rate • But this interacts with other people because you use more channel time to send the same data. Uh-oh. • Nice example of the ...
104-575 Ness 8 Port PoE Network Switch PoE
... PoE Switch Features ■■ Provides 8x 10/100Mbps PoE Ethernet ports, support power supply for network devices meeting IEEE802.3 af/at. ■■ PoE Ethernet ports provide up to 30W power supply per port suitable even for power hungry devices such ...
... PoE Switch Features ■■ Provides 8x 10/100Mbps PoE Ethernet ports, support power supply for network devices meeting IEEE802.3 af/at. ■■ PoE Ethernet ports provide up to 30W power supply per port suitable even for power hungry devices such ...
ppt - The Fengs
... – Program that promiscuously monitors and injects network traffic to/from machines it is protecting – Monitors net for SYN packets not acknowledged after a certain period of time – If it detects problems with a half-open connection it can • Send RST packets to the sender to release destination resou ...
... – Program that promiscuously monitors and injects network traffic to/from machines it is protecting – Monitors net for SYN packets not acknowledged after a certain period of time – If it detects problems with a half-open connection it can • Send RST packets to the sender to release destination resou ...
Networks
... – system designers should consider building in hooks for fault-injection and availability testing ...
... – system designers should consider building in hooks for fault-injection and availability testing ...
Defense against DoS, flooding attacks
... DoS attack occurs when actions of single attacker results in making certain service unavailable by its target audience. Such attacks can be carried out in numerous ways; however it mostly relies on vulnerabilities or design flaws. Single attacker usually does not have enough bandwidth and resources ...
... DoS attack occurs when actions of single attacker results in making certain service unavailable by its target audience. Such attacks can be carried out in numerous ways; however it mostly relies on vulnerabilities or design flaws. Single attacker usually does not have enough bandwidth and resources ...
Experiments - DVS
... CUSP Transport Protocol Complete user-land transport protocol implementation [4] Containing flow control, congestion control, reliability, priorities/QoS, encryption, authentication Encapsulated over UDP Simplifies simulator implementation (simulator only needs UDP support) Powerful tool f ...
... CUSP Transport Protocol Complete user-land transport protocol implementation [4] Containing flow control, congestion control, reliability, priorities/QoS, encryption, authentication Encapsulated over UDP Simplifies simulator implementation (simulator only needs UDP support) Powerful tool f ...
The Sky Road Towards Buddha World of Snowfield---
... owning to the economical conditions in Nepal, SNPL has limited optical transmission resources, so the transmission between most stations has to be realized by microwaves. SNPL now is faced with two major challenges: ...
... owning to the economical conditions in Nepal, SNPL has limited optical transmission resources, so the transmission between most stations has to be realized by microwaves. SNPL now is faced with two major challenges: ...
슬라이드 1
... earlier marking will not be overwritten by the routers close to the victim, which presumably handle the majority of the victim's traffic anyway. We would like a small o value, so that as many routers as possible will mark the packet. We therefore choose o=0 for our tests with n=1. For n=2, however, ...
... earlier marking will not be overwritten by the routers close to the victim, which presumably handle the majority of the victim's traffic anyway. We would like a small o value, so that as many routers as possible will mark the packet. We therefore choose o=0 for our tests with n=1. For n=2, however, ...
Microsoft PowerPoint Presentation: Lecture1.2
... This layer is concerned with the transmission of packets. It takes routing decisions, e.g., the best path to send a packet. ...
... This layer is concerned with the transmission of packets. It takes routing decisions, e.g., the best path to send a packet. ...
Part I: Introduction - Computer Science and Engineering
... frame contains A-to-B IP datagram • A’s data link layer sends Ethernet frame • R’s data link layer receives Ethernet frame • R removes IP datagram from Ethernet frame, sees it’s destined to B • R uses ARP to get B’s physical layer address • R creates frame containing A-to-B IP datagram, sends it to ...
... frame contains A-to-B IP datagram • A’s data link layer sends Ethernet frame • R’s data link layer receives Ethernet frame • R removes IP datagram from Ethernet frame, sees it’s destined to B • R uses ARP to get B’s physical layer address • R creates frame containing A-to-B IP datagram, sends it to ...