Slide 1
... Segmenting a Network • Decreases amount of traffic on overall network • Done through use of bridges and switches – More intelligent than hubs; make decisions about whether or not to allow traffic to pass, or where to forward that traffic – Use MAC addresses, which they store in routing tables, to d ...
... Segmenting a Network • Decreases amount of traffic on overall network • Done through use of bridges and switches – More intelligent than hubs; make decisions about whether or not to allow traffic to pass, or where to forward that traffic – Use MAC addresses, which they store in routing tables, to d ...
PPT 1.0M
... that do not work when integrated together. • Inconsistency between different releases of Internet Drafts, e.g. IPv6 mobility support drafts #13, #16, etc. • Differences between implementations built on different OS kernels. • Not new problems, but really experiencing them are good lessons for deploy ...
... that do not work when integrated together. • Inconsistency between different releases of Internet Drafts, e.g. IPv6 mobility support drafts #13, #16, etc. • Differences between implementations built on different OS kernels. • Not new problems, but really experiencing them are good lessons for deploy ...
Chapter 1: PowerPoint slides - ECE
... If timeout, the sender retransmits the frames that are not ACKed and N–1 succeeding frames that were transmitted during the round-trip delay (N frames transmitted during a round-trip delay) Need buffer at sender, does not have to buffer the frames at the receiver, Moderate efficiency and complexity. ...
... If timeout, the sender retransmits the frames that are not ACKed and N–1 succeeding frames that were transmitted during the round-trip delay (N frames transmitted during a round-trip delay) Need buffer at sender, does not have to buffer the frames at the receiver, Moderate efficiency and complexity. ...
Network Congestion - New York University
... Another “cost” of congestion: • when packet dropped, any “upstream transmission capacity used for that packet was wasted! ...
... Another “cost” of congestion: • when packet dropped, any “upstream transmission capacity used for that packet was wasted! ...
Symantec Software Datasheet
... • Greater network availability and reduced disruption of services for end users • Verifiable organizational compliance information ...
... • Greater network availability and reduced disruption of services for end users • Verifiable organizational compliance information ...
Characteristics of Communication Systems
... Large networks can be separated into two or more smaller networks using a bridge. This is done to increase speed and efficiency. This type of network is called a segmented LAN and has largely been superseded by the use of switches which can transfer data straight to a computer and thus avoid bottlen ...
... Large networks can be separated into two or more smaller networks using a bridge. This is done to increase speed and efficiency. This type of network is called a segmented LAN and has largely been superseded by the use of switches which can transfer data straight to a computer and thus avoid bottlen ...
dhs-aug2006 - Princeton University
... • Aggregation and analysis of route updates – A single event can trigger instability in routes to many destinations. High volume of updates makes this an MDS-algorithmic challenge. – Use statistical correlation to form clusters of routes that change frequently and (approx’ly) simultaneously. Provide ...
... • Aggregation and analysis of route updates – A single event can trigger instability in routes to many destinations. High volume of updates makes this an MDS-algorithmic challenge. – Use statistical correlation to form clusters of routes that change frequently and (approx’ly) simultaneously. Provide ...
Congestion
... dup ACKs indicate network capable of delivering some segments cwnd is cut in half window then grows linearly TCP Tahoe always sets cwnd to 1 (timeout or 3 ...
... dup ACKs indicate network capable of delivering some segments cwnd is cut in half window then grows linearly TCP Tahoe always sets cwnd to 1 (timeout or 3 ...
document
... Enables ISPs to implement various policies Helps ISPs to cooperate under competitive circumstances ...
... Enables ISPs to implement various policies Helps ISPs to cooperate under competitive circumstances ...
DHCP snooping
... to perform Ethernet address checks Normally, packets with invalid MAC address would have been dropped at the data-link layer. If the host is running in promiscuous mode, it will not drop the packet with invalid MAC address Try sending an ICMP ping request to the host, with a valid IP address a ...
... to perform Ethernet address checks Normally, packets with invalid MAC address would have been dropped at the data-link layer. If the host is running in promiscuous mode, it will not drop the packet with invalid MAC address Try sending an ICMP ping request to the host, with a valid IP address a ...
DOS ATTACK - DSpace at CUSAT
... The two main components to the smurf denial-of-service attack are the use of forged ICMP echo request packets and the direction of packets to IP broadcast addresses. The Internet Control Message Protocol (ICMP) is used to handle errors and exchange control messages. ICMP can be used to determine if ...
... The two main components to the smurf denial-of-service attack are the use of forged ICMP echo request packets and the direction of packets to IP broadcast addresses. The Internet Control Message Protocol (ICMP) is used to handle errors and exchange control messages. ICMP can be used to determine if ...
arubaos 6.5 - Aruba Networks
... spend their time online. This enables IT administrators to reduce or eliminate inappropriate or malicious web traffic from enterprise networks. WebCC gives IT administrators critical insight into the risks of malware, phishing, and other security problems associated with Internet usage, and provides ...
... spend their time online. This enables IT administrators to reduce or eliminate inappropriate or malicious web traffic from enterprise networks. WebCC gives IT administrators critical insight into the risks of malware, phishing, and other security problems associated with Internet usage, and provides ...
The Use of Technology in Providing Proactive Customer Support
... …All these being completely transparent to the users by Eashwar Iyer ([email protected]) ...
... …All these being completely transparent to the users by Eashwar Iyer ([email protected]) ...
Composing Software-Defined Networks Christopher Monsanto , Joshua Reich , Nate Foster
... each application controls its own slice—a disjoint portion of traffic, over which the tenant or application module has (the illusion of) complete visibility and control [21, 8]. In addition to traffic isolation, such a platform may also support subdivision of network resources (e.g., link bandwidth, ...
... each application controls its own slice—a disjoint portion of traffic, over which the tenant or application module has (the illusion of) complete visibility and control [21, 8]. In addition to traffic isolation, such a platform may also support subdivision of network resources (e.g., link bandwidth, ...
Qualitative and Quantitative Evaluation of A Proposed Circuit
... reserved and cannot be allocated to any other data transmission [1,8]. The latter switching mode does not require setting up of path prior to data transmission but instead relies on buffering schemes, routing strategy and flow control to ensure successful data transmission. Currently, many proposed ...
... reserved and cannot be allocated to any other data transmission [1,8]. The latter switching mode does not require setting up of path prior to data transmission but instead relies on buffering schemes, routing strategy and flow control to ensure successful data transmission. Currently, many proposed ...
IPv6 Prospects
... • Applications – Server/Client, P2P, GRID – generate different traffic patterns than Client/Server Symmetrical – as much upstream as downstream traffic (users become servers) Very long sessions – Always-on devices may be left unattended. Streaming applications can run for a long period of time. Ofte ...
... • Applications – Server/Client, P2P, GRID – generate different traffic patterns than Client/Server Symmetrical – as much upstream as downstream traffic (users become servers) Very long sessions – Always-on devices may be left unattended. Streaming applications can run for a long period of time. Ofte ...
Buffer-Sizing---CAIDA---May-2005 - McKeown Group
... Network users don’t like buffers Network operators don’t like buffers Router architects don’t like buffers We don’t need big buffers We’d often be better off with smaller ones ...
... Network users don’t like buffers Network operators don’t like buffers Router architects don’t like buffers We don’t need big buffers We’d often be better off with smaller ones ...
ppt - Carnegie Mellon School of Computer Science
... » Requires a convention that some messages are invalid » Hence requires extra bits » An (n,k) code has codewords of n bits with k data bits and r = (n-k) redundant check bits ...
... » Requires a convention that some messages are invalid » Hence requires extra bits » An (n,k) code has codewords of n bits with k data bits and r = (n-k) redundant check bits ...
Mapping peer2peer networks
... S. Sen and J. Wang, “Analyzing peer-to-peer traffic across large networks”, IMW 2002. M. Ripeanu, I. Foster, A. Iamnitchi, “Mapping the Gnutella Network: Properties of Large-Scale Peer-to-Peer Systems and Implications for System Design”, IEEE Internet Computing, 2002. Sripanidkulchai, “The popularit ...
... S. Sen and J. Wang, “Analyzing peer-to-peer traffic across large networks”, IMW 2002. M. Ripeanu, I. Foster, A. Iamnitchi, “Mapping the Gnutella Network: Properties of Large-Scale Peer-to-Peer Systems and Implications for System Design”, IEEE Internet Computing, 2002. Sripanidkulchai, “The popularit ...
IMS
... methods, all of which are using the standard Internet Protocol(IP). Direct IMS terminals (mobile phones, computers, ...), can register directly into an IMS network, even when they are roaming in another network or country (the visited network). Fixed access (e.g., DSL, Cable Modems, Ethernet ...), m ...
... methods, all of which are using the standard Internet Protocol(IP). Direct IMS terminals (mobile phones, computers, ...), can register directly into an IMS network, even when they are roaming in another network or country (the visited network). Fixed access (e.g., DSL, Cable Modems, Ethernet ...), m ...
Review for final - Computer Science Division
... can’t know if data “really” comes from claimed source if multiple app’s. need special treatment, each has own app. gateway. client software must know how to contact gateway. ...
... can’t know if data “really” comes from claimed source if multiple app’s. need special treatment, each has own app. gateway. client software must know how to contact gateway. ...
Chapter 7: Computer Networks, the Internet, and the World Wide Web
... Easy to use and easy to understand Provides services such as ...
... Easy to use and easy to understand Provides services such as ...