Xem 1-20 trên 45 kết quả Udp protocols
  • User Datagram Protocol (UDP) UDP is the polar opposite of TCP. Whereas TCP is connection oriented, reliable, and relatively complex, UDP is a connectionless, unreliable

    pdf3p chutieuchuathieulam 23-07-2010 124 53   Download

  • TCP and UDP exist primarily to deliver upper-layer data across a network. Whether connection oriented or connectionless, fundamentally the process of delivering the data is the same

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  • SIP is a lightweight, transport-independent, text-based protocol. SIP has the following features: Lightweight, in that SIP has only four methods, reducing complexity Transport-independent, because SIP can be used with UDP, TCP, ATM & so on. Text-based, allowing for low overhead SIP is primarily used for VOIP calls

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  • When you finish this chapter, you should: Be able to explain process-to-process communication, know the format of a UDP user datagram, be able to calculate a UDP checksum, understand the operation of UDP, know when it is appropriate to use UDP, understand the modules in a UDP package.

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  • Real-time Transport Protocol (RTP) is the protocol designed to handle real-time traffic on the Internet. RTP does not have a delivery mechanism (multicasting, port numbers, and so on); it must be used with UDP. RTP stands between UDP and the application program. The main contributions of RTP are timestamping, sequencing, and mixing facilities. This chapter provides knowledge of RTP and RTCP.

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  • This chapter include objectives: Describe the purpose of the transport layer in managing the transportation of data in end-to-end communication; describe characteristics of the TCP and UDP protocols, including port numbers and their uses; explain how TCP session establishment and termination processes facilitate reliable communication;...

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  • Chapter 11 - User data gram protocol. Upon completion you will be able to: Be able to explain process-to-process communication, know the format of a UDP user datagram, be able to calculate a UDP checksum, understand the operation of UDP, know when it is appropriate to use UDP, understand the modules in a UDP package.

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  • Chương 4 LẬP TRÌNH MẠNG VỚI VISUAL BASIC (WinSock Control) 1 Nội dung Giới thiệu Winsock control Các thuộc tính Các phương thức Các sự kiện Các mô hình lập trình với winsock control 2 Giới thiệu Winsock control Là ActiveX Control cung cấp các dịch vụ mạng TCP và UDP dưới dạng các thuộc tính, phương thức và sự kiện.

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  • Lớp Giao vận trong mô hình tham chiếu DOD (xem Internet thật là đơn giản số 5/2003) cung cấp khả năng truyền thông từ một chương trình ứng dụng này tới một chương trình ứng dụng khác. Trong mục này, chúng ta sẽ nghiên cứu về 2 giao thức ở Lớp giao vận (Transport Layer): Giao thức TCP (Transport Control Protocol) và Giao thức UDP (User Datagram Protocol). Tất cả các gói tin được trao đổi giữa các máy tính trên mạng đều nhờ vào một trong 2 giao thức đó....

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  • Với nhiều máy tính trong mạng LAN chúng ta không thể đi đến từng máy tính để cấu hình địa chỉ IP, qua đó chúng ta sẽ nhờ đến dịch vụ DHCP để cấp IP động cho các máy trong mạng. DHCP viết tắt của Dynamic Host Configuration Protocol, là giao thức cung cấp địa chỉ ip động, cổng của dịch vụ DHCP là UDP 67/68.

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  • Multicast is UDP Based!!! Best Effort Delivery: Drops are to be expected. Multicast applications should not expect reliable delivery of data and should be designed accordingly. Reliable Multicast is still an area for much research. Expect to see more developments in this area. No Congestion Avoidance: Lack of TCP windowing and “flow-control” mechanisms can result in network congestion. If possible, Multicast applications should attempt to detect and avoid congestion conditions. Duplicates: Some multicast protocol mechanisms (e.g.

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  • IP best-effort packet-delivery service: IP addressing and packet forwarding with datagram mode. Multiplexing accomplished by transport protocols (TCP, UDP). And how to build on top of the narrow waist: Domain Name System (DNS) for resolution between name and addresses, Dynamic host configuration protocol-DHCP for IP configurations.

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  • Tham khảo sách 'c# . n et web developer’s guide', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • TCP/IP Suite and Internet Stack Protocols Các giao thức Internet bao gồm một bộ các giao thức truyền thông, trong đó nổi tiếng nhất là Transmission Control Protocol (TCP) và Nghị định thư Internet (IP). Bộ phần mềm TCP / IP không chỉ bao gồm các lớp thấp hơn giao thức (TCP, UDP, IP, ARP, RARP, ICMP, IGMP), nhưng cũng quy định cụ thể các ứng dụng phổ biến như www, e-mail, đăng nhập, tên miền đặt tên dịch vụ và chuyển giao tập tin. Hình 1.

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  • A border router configured to pass or reject packets based on information in the header of each individual packet can theoretically be configured to pass/reject based on any field but usually done based on: protocol type IP addres TCP/UDP port Fragment number Source routing information

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  • The BACnet protocol currently uses the connectionless User Datagram Protocol (UDP) for both Annex H and BACnet/IP communications. However, it is possible that Trans- mission Control Protocol (TCP) transport will be utilized for some service in the future, and so threats specific to TCP have been included. Even if TCP/IP is never used as part of the BACnet protocol, it still can be used to gain access to the building control system web servers, get access through the corporate firewall, and be used for denial of service attacks on the external network on which the BCS may depend.

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  • UDP-galactose 4-epimerases from the yeastKluyvero-myces fragilisandEscherichia coliare both homodimers but the molecular mass of the former (75 kDa/subunit) is nearly double that of the latter (39kDa/subunit). Protein databank sequence homology revealed the possibility of mutarotase activity in the excess mass of the yeast enzyme. This was confirmed by three independent assay protocols. With the help of specific inhibitors and chem-ical modification reagents, the catalytic sites of epimerase and mutarotase were shown to be distinct and inde-pendent....

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  • This chapter explain the role of Transport Layer protocols and services in supporting communications across data networks, analyze the application and operation of TCP mechanisms that support reliability, analyze the application and operation of TCP mechanisms that support reassembly and manage data loss, analyze the operation of UDP to support communicate between two processes on end devices.

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  • Ebook Cisco security architectures focus presents basic issues such as: The TCP/IP protocol suite, the internet protocol, TCP and UDP, netware, router hardware and software overview.

    pdf114p dienham63 12-12-2015 5 1   Download

  • Chapter 23 - Process-to-process delivery: UDP, TCP, and SCTP. Chapter 23 discusses three transport layer protocols in the Internet: UDP, TCP, and SCTP. The first, User Datagram Protocol (UDP), is a connectionless, unreliable protocol that is used for its efficiency. The second, Transmission Control Protocol (TCP), is a connection-oriented, reliable protocol that is a good choice for data transfer. The third, Stream Control Transport Protocol (SCTP) is a new transport-layer protocol designed for multimedia applications.

    ppt89p tangtuy04 12-03-2016 4 1   Download

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