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Citrix Technical Overview
Citrix Technical Overview

... Auditing • Full administrative audit trail • All management operations logged ...
Proceedings of BSDCon ’03 USENIX Association San Mateo, CA, USA September 8–12, 2003
Proceedings of BSDCon ’03 USENIX Association San Mateo, CA, USA September 8–12, 2003

... • IPSEC OUT DONE records IPsec SAs that have been applied to an outgoing packet. This is primarily used to catch processing loops in the network stack, which could cause repeated processing (encryption) of a packet under the same set of SAs. This is necessary because the IPsec standards [5] require ...
MOAC271_Ins_Chap10
MOAC271_Ins_Chap10

... properties is convenient, but there will be situations where you will want the control that is afforded by manual configuration ...
COMNET III: A Network Simulation Laboratory Environment For A
COMNET III: A Network Simulation Laboratory Environment For A

... hierarchically into subnets. The subnet object in COMNET III is used for modeling a topology hierarchically so that separate subnets have independent routing algorithms from the backbone. The sources for network traffic and workload drive the simulation. Network traffic refers to the messages sent b ...
20061205-hopi-summerhillsobieskijohnson
20061205-hopi-summerhillsobieskijohnson

... • How does one effectively use a richer set of capabilities available to network designers and end users? • Core IP packet switched networks • A set of optically switched lightpaths available for dynamic provisioning ...
ppt
ppt

... caused only by congestion and adjusts its data rate according to the packet losses In the wireless mobile network, losses are more caused by high bit error rate and fading effect and temporary disconnection ...
3rd Edition: Chapter 4
3rd Edition: Chapter 4

... Priority: identify priority among datagrams in flow Flow Label: identify datagrams in same “flow.” (concept of“flow” not well defined). Next header: identify upper layer protocol for data ...
Unit OS A: Networking Components in WIndows
Unit OS A: Networking Components in WIndows

... Report whether network medium is active TCP/IP uses this information to reevaluate DHCP addressing info. ...
Magic of SDN in Networking
Magic of SDN in Networking

... network. With SDN, it is possible to have the standard defined interfaces to the core control functionality and orchestration can be totally achieved among these heterogeneous devices. ...
Revisiting Route Caching: The World Should Be Flat Changhoon Kim , Matthew Caesar
Revisiting Route Caching: The World Should Be Flat Changhoon Kim , Matthew Caesar

... 2.1 Route caching model To evaluate the performance of route caching, we define a simple and generic caching architecture. In this architecture, a packet forwarding unit (e.g., a line card, or a forwarding engine) incorporates hierarchical, two-level memory. The first level is a route cache, which ...
ch16-DistributedSystemStructures
ch16-DistributedSystemStructures

...  Message slots - A number of fixed-length message slots continuously circulate in the system (usually a ring structure)  Since a slot can contain only fixed-sized messages, a single logical message may have to be broken down into a number of smaller packets, each of which is sent in a separate slo ...
physical
physical

... • Control & old data planes need to be kept “online” • Solution: redirect routing messages through tunnels Physical router A ...
Influence of Distortions of Key Frames on Video Transfer in Wireless
Influence of Distortions of Key Frames on Video Transfer in Wireless

... The technique of certification of packet networks in recommendation IETF RFC-2544 [4] defines the following key parameters of network quality: available bandwidth, packet delay, network jitter, number of the lost packets, quantity of packages with errors. Subjective testing to assess video quality c ...
Token Ring Cards - Personal.psu.edu
Token Ring Cards - Personal.psu.edu

... Electrically amplifies the signal it receives and rebroadcasts it. ...
Title goes here
Title goes here

... • Explicit route for LSP tunnel generated • Strict or Loose path(Abstract node) is specified • May be defined administratively or computed automatically by a constraint-based routing entity(CSPF). ...
Cross-layer Performance Optimization in wireless Local Area Network
Cross-layer Performance Optimization in wireless Local Area Network

... State Manager (SM) in parallel to protocol stack Each layer reports its state to the SM SM can signal TCP to stop sending packets if conditions not good Disadvantage: Additional Layer added to the sender ...
Computer Networks(Routing and IPv6).
Computer Networks(Routing and IPv6).

... • When foreign shows up at a foreign site, it contacts the foreign host there and registers. • The foreign host contacts the user’s home agent and gives it a care-of-address. ...
VoIP - Chetan Vaity
VoIP - Chetan Vaity

...  Media applications are less sensitive to packet loss, but typically very sensitive to delays.  UDP is a better choice than TCP  RTP generally runs over UDP ...
Presentation PPT
Presentation PPT

... Peer systems change the way bandwidth is used on the internet ...
ppt
ppt

... • Can’t discover details of networks that do not route traffic to other autonomous systems • It is however complete with respect to the portion of the Internet over which packets tend to travel between hosts ...
Presentazione di PowerPoint - E
Presentazione di PowerPoint - E

... • The WDM network transports data traffic from the client layer • The WDM network is to establish lightpaths to support the client traffic demands ...
An Inter-domain - Distributed Systems and Networks Lab
An Inter-domain - Distributed Systems and Networks Lab

... networks that optimizes routing and provide fast inter-domain handoff between Internet connected access points potentially on different networks. As such, our work relates to mobility, wireless mesh networks and wireless handoff. Good surveys addressing some of these areas were overviewed by Akyildi ...
Computer Networks - Network Optiminization Research Group
Computer Networks - Network Optiminization Research Group

... • When foreign shows up at a foreign site, it contacts the foreign host there and registers. • The foreign host contacts the user’s home agent and gives it a care-of-address. ...
A Practical Method to Counteract Denial of Service Attacks
A Practical Method to Counteract Denial of Service Attacks

... routers are internal routers that are adjacent to one or more external routers. Transit routers are internal routers that are only adjacent to other internal routers. In Fig: 9 (R0, R1, R3, R6, R8, R9) are edge routers and (R2, R4, R5, R7) are transit routers. While there is a chance for attack traf ...
Network Fundamentals iii
Network Fundamentals iii

... Client/Server Model  A single application can employ many different supporting application layer services. Thus, what appears to the user as one request for a web page might, in fact, amount to dozens of individual requests.  Additionally, servers typically have multiple clients requesting inform ...
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Deep packet inspection

Deep Packet Inspection (DPI, also called complete packet inspection and Information eXtraction or IX) is a form of computer network packet filtering that examines the data part (and possibly also the header) of a packet as it passes an inspection point, searching for protocol non-compliance, viruses, spam, intrusions, or defined criteria to decide whether the packet may pass or if it needs to be routed to a different destination, or, for the purpose of collecting statistical information. There are multiple headers for IP packets; network equipment only needs to use the first of these (the IP header) for normal operation, but use of the second header (TCP, UDP etc.) is normally considered to be shallow packet inspection (usually called Stateful Packet Inspection) despite this definition.There are multiple ways to acquire packets for deep packet inspection. Using port mirroring (sometimes called Span Port) is a very common way, as well as an optical splitter.Deep Packet Inspection (and filtering) enables advanced network management, user service, and security functions as well as internet data mining, eavesdropping, and internet censorship. Although DPI technology has been used for Internet management for many years, some advocates of net neutrality fear that the technology may be used anticompetitively or to reduce the openness of the Internet.DPI is used in a wide range of applications, at the so-called ""enterprise"" level (corporations and larger institutions), in telecommunications service providers, and in governments.
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