Large Scale Simulation of Tor: Modelling a Global Passive Adversary
... the effort required to thwart stream correlation attacks. This work was extended, using entropy to measure anonymity [11]. Real traffic measurements are taken from a campus network, however no attacks are described. Later work by Levine et al. [7] describes global passive adversary attacks for strea ...
... the effort required to thwart stream correlation attacks. This work was extended, using entropy to measure anonymity [11]. Real traffic measurements are taken from a campus network, however no attacks are described. Later work by Levine et al. [7] describes global passive adversary attacks for strea ...
Chapter 25 Internet Routing
... Used by all ISPs to exchange routing information with each other and from an authoritative route server (which has a copy distributed database of all possible destinations in the Internet with information about the ISP that owns each destination) ...
... Used by all ISPs to exchange routing information with each other and from an authoritative route server (which has a copy distributed database of all possible destinations in the Internet with information about the ISP that owns each destination) ...
Axes of scale Dr. Keith Scott
... Distribution Statement A: Approved for Public Release, Distribution Unlimited ...
... Distribution Statement A: Approved for Public Release, Distribution Unlimited ...
ch3_OSI_2
... router) has a pair of addresses (logical and physical) for each connection. In this case, each computer is connected to only one link and therefore has only one pair of addresses. Each router, however, is connected to three networks (only two are shown in the figure). So each router has three pairs ...
... router) has a pair of addresses (logical and physical) for each connection. In this case, each computer is connected to only one link and therefore has only one pair of addresses. Each router, however, is connected to three networks (only two are shown in the figure). So each router has three pairs ...
Lecture 21
... 802.3 Ethernet Standards: Link & Physical Layers many different Ethernet standards common MAC protocol and frame format ...
... 802.3 Ethernet Standards: Link & Physical Layers many different Ethernet standards common MAC protocol and frame format ...
Chapter6
... connects cells to wired tel. net. manages call setup (more later!) handles mobility (more later!) ...
... connects cells to wired tel. net. manages call setup (more later!) handles mobility (more later!) ...
modularity matrix
... • This model provides information theoretic min-cut flow rates • Linear scaling so that max absolute eigenvalue of direct matrix <1 Indirect effects decay exponentially with path length ...
... • This model provides information theoretic min-cut flow rates • Linear scaling so that max absolute eigenvalue of direct matrix <1 Indirect effects decay exponentially with path length ...
NETWORK TOPOLOGIES
... Hub provides centralised management Easy to find device and cable problems Can be upgraded to faster speeds Lots of support as it is the most used ...
... Hub provides centralised management Easy to find device and cable problems Can be upgraded to faster speeds Lots of support as it is the most used ...
CCNA 1 Module 6 Ethernet Fundamentals
... Nodes monitor the bus (or Ether) to determine if it is busy. A node wishing to send data waits for an idle condition then transmits its message. Collisions can occur when two nodes transmit at the same time, thus nodes must monitor the cable when they transmit. When a collision occurs, both nodes st ...
... Nodes monitor the bus (or Ether) to determine if it is busy. A node wishing to send data waits for an idle condition then transmits its message. Collisions can occur when two nodes transmit at the same time, thus nodes must monitor the cable when they transmit. When a collision occurs, both nodes st ...
DHL-BP-NISA: Win-Win-Win! Case Study
... they would face as they progressed was to focus on ‘value satisfaction and efficiency before contractual boundaries’. A key facilitator to the success of the partnership was to culturally align both companies to a partnership mentality over a transactional relationship. As the integration of assets ...
... they would face as they progressed was to focus on ‘value satisfaction and efficiency before contractual boundaries’. A key facilitator to the success of the partnership was to culturally align both companies to a partnership mentality over a transactional relationship. As the integration of assets ...
lecture11
... VPN technology provides many benefits. Perhaps the biggest selling point for VPN is cost savings. One can avoid having to purchase expensive leased lines to branch offices or partner companies. On another cost-related note, you can evade having to invest in additional WAN equipment and instead lever ...
... VPN technology provides many benefits. Perhaps the biggest selling point for VPN is cost savings. One can avoid having to purchase expensive leased lines to branch offices or partner companies. On another cost-related note, you can evade having to invest in additional WAN equipment and instead lever ...
network topologies
... alternatives. 10Base-2 ("ThinNet") and 10Base-5 ("ThickNet") both were popular Ethernet cabling options many years ago for bus topologies. However, bus networks work best with a limited number of devices. If more than a few dozen computers are added to a network bus, performance problems will likely ...
... alternatives. 10Base-2 ("ThinNet") and 10Base-5 ("ThickNet") both were popular Ethernet cabling options many years ago for bus topologies. However, bus networks work best with a limited number of devices. If more than a few dozen computers are added to a network bus, performance problems will likely ...
... resend. This does not mean that we are not handling packet collisions. They are treated as before, namely as link breakages. Still, however, there is a tradeoff between network size and number of link breaks. The protocol cannot be expected to guarantee successful route discovery if more link breaks ...
Figure 1.5. Hybrid Wireless Mesh Network
... The drawback of this architecture is highly expensive infrastructure costs, since an expensive cabled connection to the wired Internet backbone is necessary for each AP. On the other hand, constructing a wireless mesh network decreases the infrastructure costs, since the mesh network requires only a ...
... The drawback of this architecture is highly expensive infrastructure costs, since an expensive cabled connection to the wired Internet backbone is necessary for each AP. On the other hand, constructing a wireless mesh network decreases the infrastructure costs, since the mesh network requires only a ...
LocationSeparation
... Example: EID 1.0.0.1 wants to send a packet to EID 1.0.0.2 Mobile host 1.0.0.2 has lost its Wi Fi connection but still has GSM 1. Mobile node updates the Mapping Server to indicate that it is accessible via 13.0.0.2, but not 12.0.0.2 2. The packet arrives at ITR2 (Which has Routing Locator 11.0.0.1 ...
... Example: EID 1.0.0.1 wants to send a packet to EID 1.0.0.2 Mobile host 1.0.0.2 has lost its Wi Fi connection but still has GSM 1. Mobile node updates the Mapping Server to indicate that it is accessible via 13.0.0.2, but not 12.0.0.2 2. The packet arrives at ITR2 (Which has Routing Locator 11.0.0.1 ...
WE01311391147
... take several packets and combine them together for transmission. This can be used to attain the maximum possible information flow in a network. Network coding is a field of information theory and coding theory. Network coding has emerged as a promising information theoretic approach to improve the p ...
... take several packets and combine them together for transmission. This can be used to attain the maximum possible information flow in a network. Network coding is a field of information theory and coding theory. Network coding has emerged as a promising information theoretic approach to improve the p ...
WB_UDP-TCP
... 3) Send the less of congestion window or receive window 4) if all ACK’d double congestion window up to the threshold add one MSS after threshold is reached and go to 3) 5) else if TO , go to 1 ...
... 3) Send the less of congestion window or receive window 4) if all ACK’d double congestion window up to the threshold add one MSS after threshold is reached and go to 3) 5) else if TO , go to 1 ...
Network Virtualization
... There are some limitation on the implementation of function depends on the Openflow. But Exposing more finegrained control of the forwarding elements will allow us to solve the remaining ...
... There are some limitation on the implementation of function depends on the Openflow. But Exposing more finegrained control of the forwarding elements will allow us to solve the remaining ...
Network Design
... uplink port of LAN switch connects to Ethernet port of router (Layer 3 ) using‘ patch cable'. At this point, end host connects to router port ...
... uplink port of LAN switch connects to Ethernet port of router (Layer 3 ) using‘ patch cable'. At this point, end host connects to router port ...
L h
... • No network info required • Packet sent by node to every neighbor • Incoming packets retransmitted on every link except incoming link • Eventually a number of copies will arrive at destination • Each packet is uniquely numbered so duplicates can be discarded • Nodes can remember packets already for ...
... • No network info required • Packet sent by node to every neighbor • Incoming packets retransmitted on every link except incoming link • Eventually a number of copies will arrive at destination • Each packet is uniquely numbered so duplicates can be discarded • Nodes can remember packets already for ...
CPS221 Lecture: The Network Layer last revised 10/9/2014
... network layer are not involved (and are generally not even present) on the intervening nodes. 5. PROJECT: Diagram showing packet flow through multiple nodes 6. Conceptually, network layer functionality is a software function but in practice on the intermediate nodes it may be performed by specialize ...
... network layer are not involved (and are generally not even present) on the intervening nodes. 5. PROJECT: Diagram showing packet flow through multiple nodes 6. Conceptually, network layer functionality is a software function but in practice on the intermediate nodes it may be performed by specialize ...
Network Types (Cont.)
... Network layer – provides connections and routes packets in the communication network, including handling the address of outgoing packets, decoding the address of incoming packets, and maintaining routing information for proper response to ...
... Network layer – provides connections and routes packets in the communication network, including handling the address of outgoing packets, decoding the address of incoming packets, and maintaining routing information for proper response to ...