tcp ip and the dod model
Tài liệu giảng dạy CCNA - module 01 chapter 02 -The TCP IP and OSI Networking Models
Ngày tải lên :
12/08/2015, 09:13
... Table of Content The TCP/ IP protocol architecture The OSI model THE TCP/ IP PROTOCOL ARCHITECTURE The TCP/ IP Application Layer TCP/ IP application layer protocols provide services to the application ... and the network itself The TCP/ IP Application Layer (cont.) Web server TCP/ IP Network Web client Give me your home page Larry This is file home.htm Bob First, the request for the file and the ... You learned about how TCP/ IP protocols at the various layers work with each other and how TCP/ IP encapsulates data Each layer provides a service to the layer above it in the protocol specification...
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Tài liệu TCP/IP and tcpdump pdf
Ngày tải lên :
23/12/2013, 02:19
... Source Quench Redirect Redirect Datagram for the Network Redirect Datagram for the Host Redirect Datagram for the TOS & Network Redirect Datagram for the TOS & Host Echo Router Advertisement Router ... no more data; Finish connection) Checksum Covers pseudoheader and entire TCP segment Urgent Pointer Points to the sequence number of the byte following urgent data Options End of Options list No ... 65,535 Flags (xDM) x (reserved and set to 0) D (1 = Don't Fragment) M (1 = More Fragments) UDP GRE ESP AH 57 88 89 115 SKIP EIGRP OSPF L2TP Header Checksum Covers IP header only Addressing NET_ID...
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Tài liệu Creating Applications with Mozilla-Chapter 10. RDF, RDF Tools, and the Content Model-P3 docx
Ngày tải lên :
21/01/2014, 06:20
... assert the statement's elements into the datasource in this way, the datasource contains the triple The truth value parameter in the last slot indicates that the given node is "locked" and thus ... triples seems hard in the template generation, their use in these examples where adding to and changing the parts is so easy may make things clearer 10.3.5.3 Moving triples Moving a triple ... through XPCOM The examples in this section use JavaScript and XPConnect to access the components for simplicity, but you can also use these interfaces with C++, as they are often in the actual Mozilla...
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Tài liệu Creating Applications with Mozilla-Chapter 10. RDF, RDF Tools, and the Content Model-P4 pptx
Ngày tải lên :
21/01/2014, 06:20
... event handling The interfaces are totally separate, but behind the scenes, they work together with the incoming data Example 10-10 shows how a series of events is created in an object and then ... containerUtils.isEmpty(datasource,anonResource); Note that the sequence object is not passed into the functions performing the test in the previous example; the resource containing the sequence is passed in Although aSequence and anonResource ... sink.addXMLSinkObserver(observer); The events are then triggered automatically when the datasource is loaded up with data, allowing you to create handlers that manipulate the data as it appears 10.3.11.2 nsIRDFXMLSerializer and...
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Tài liệu Creating Applications with Mozilla-Chapter 10. RDF, RDF Tools, and the Content Model-P5 pdf
Ngày tải lên :
21/01/2014, 06:20
... modern theme The next section gives more information on the theme, such as the author, the theme name, and a description The chrome:packages structure that completes the manifest describes the packages ... in the sequence Next, it ensures that you actually want to add the item to the RDF file and flushes it out if not It then recalls the onload function to update the template display These are the ... preinstalled with Mozilla (such as the browser, the MailNews component, and the en-US language pack), have manifests describing them in terms of their relation to other packages The manifests are typically...
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Tài liệu Medical Countermeasures Dispensing Emergency Use Authorization and the Postal Model ppt
Ngày tải lên :
16/02/2014, 20:20
... scientific and engineering research, dedicated to the furtherance of science and technology and to their use for the general welfare Upon the authority of the charter granted to it by the Congress ... (CDC) and others within the Department of Health and Human Services (HHS), as well as state and local health departments, the private sector, and others The workshop agenda is in Appendix B and ... by the Academy, the Council has become the principal operating agency of both the National Academy of Sciences and the National Academy of Engineering in providing services to the government, the...
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Practical TCP/IP and Ethernet Networking- P1 pptx
Ngày tải lên :
03/07/2014, 19:21
... Wright) Practical TCP/ IP and Ethernet Networking (Deon Reynders, Edwin Wright) Practical Variable Speed Drives and Power Electronics (Malcolm Barnes) Practical TCP/ IP and Ethernet Networking Deon ... origins of TCP/ IP The ARPA model vs the OSI model The TCP/ IP protocol suite vs the ARPA model /TZKXTKZ RG_KX VXUZUIURY 6.1 6.2 Overview Internet protocol version (IPv4) 78 79 ... means and whether or not transiently or incidentally to some other use of this publication) without the written permission of the copyright holder except in accordance with the provisions of the...
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Practical TCP/IP and Ethernet Networking- P2 ppt
Ngày tải lên :
03/07/2014, 19:21
... cover the main areas of TCP/ IP and Ethernet in detail, while going through the practical implementation of TCP/ IP in computer and industrial applications Troubleshooting and maintenance of TCP/ IP ... TCP/ IP and this is being used as the open standard today for all network and communications systems The reasons for this popularity are not hard to find TCP/ IP and Ethernet are truly open standards ... Introduction to TCP/ IP A brief review of the origins of TCP/ IP to lay the foundation for the following chapters Chapter 6: Internet layer protocols Perhaps the workhorse of the TCP/ IP suite of protocols...
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Practical TCP/IP and Ethernet Networking- P3 ppsx
Ngày tải lên :
03/07/2014, 19:21
... a minimum and maximum frequency and the difference between those frequencies is the bandwidth of that signal The bandwidth of an analog channel is the difference between the highest and lowest ... separate the data from the noise and communication errors occur An important parameter of the channel is the ratio of the power of the received signal (S) to the power of the noise signal (N) The ... defining the function of the various data, timing and control signals used at the interface It should be emphasized that the interface standard only defines the electrical and mechanical aspects of the...
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Practical TCP/IP and Ethernet Networking- P4 ppsx
Ngày tải lên :
03/07/2014, 19:21
... layered communications model • Describe the functions of each layer in the OSI reference model • Indicate the structure and relevance of the IEEE 802 (ISO 8802) series of Standards and Working Groups ... of the process of each layer, together with standardized interfaces and peer-to-peer virtual communication, are fundamental to the concepts developed in a layered model such as the OSI model The ... they travel through the network they may get separated and handled independently from each other, but eventually arrive at their correct destination For this reason, packets often arrive at the...
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Practical TCP/IP and Ethernet Networking- P5 pps
Ngày tải lên :
03/07/2014, 19:21
... have all standardized on the three layers only One of the challenges with the use of the OSI model is the concept of interoperability and the need for definition of another layer above the application ... to the physical layer and from there, the data is transmitted to the physical layer on the destination machine Network architectures (such as Ethernet, ARCnet, Token Ring, and FDDI) encompass the ... equipment differing manufacturers These standards are known as the Technical Office Protocol (TOP) and the Manufacturing Automation Protocol (MAP), and are designed as a subset of the OSI model...
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Practical TCP/IP and Ethernet Networking- P6 pdf
Ngày tải lên :
03/07/2014, 19:21
... to the network, the token is returned to sender with the acknowledgment The sender then releases the token to the next node on the network If this node has nothing to say, the node passes the ... to node, until the packet reaches its destination The recipient acknowledges the packet by sending the message back to the sender, who then sends the token on to the next node in the network In ... standards for secure LAN communications /+++ =OXKRKYY 2'4Y The IEEE802.11 Wireless LAN standard uses the 2.4 GHz band and allows operation to or Mbps The 802.11b standard also uses the...
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Practical TCP/IP and Ethernet Networking- P7 pptx
Ngày tải lên :
03/07/2014, 19:21
... signaling standards and transmission speeds that can be utilized These include both base band and broadband signaling, and speeds of Mbps and 10 Mbps The standard is continuing to evolve, and this ... transceiver on the NIC is not used Rather, there is a transceiver in the MAU and this is fed with power from the NIC via the AUI cable Since the transceiver is remote from the NIC, the node needs ... the CSMA/CD protocol • List the fields in the Ethernet data frames • Describe the causes of Ethernet collisions and how to reduce them • Demonstrate how to apply the Ethernet design rules /+++...
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Practical TCP/IP and Ethernet Networking- P8 ppsx
Ngày tải lên :
03/07/2014, 19:21
... integer multiple of the slot time In the first attempt, the node will choose, at random, either one or zero slot times delay If another collision occurs, the delay will be chosen at random from ... is normally random data The CRC is calculated over the data in the pad field Once the CRC checks OK, the receiving node discards the pad data, which it recognizes by the value in the length field ... TKZ]UXQY the cable, and some short time later they ‘collide’ Almost immediately, node 2’s transceiver recognizes that the signals on the cable are corrupted, and the logic incorporated on the NIC...
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Practical TCP/IP and Ethernet Networking- P9 ppsx
Ngày tải lên :
03/07/2014, 19:21
... rules The cable distance and the number of repeaters, which can be used in a 100Base-T collision domain, depends on the delay in the cable and the time delay in the repeaters and NIC delays The ... (FCS) to verify the frame validity Then the frame is buffered in the internal memory of the port before being forwarded to the other ports of the repeater It is therefore combining the functions ... round-trip delay for 100Base-T systems is the time to 66 Practical TCP/ IP and Ethernet Networking transmit 64 bytes or 512 bits and equals 5.12 µs A frame has to go from the transmitter to the most...
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Practical TCP/IP and Ethernet Networking- P10 pptx
Ngày tải lên :
03/07/2014, 19:21
... between the two models is depicted in Figure 5.1 Figure 5.1 OSI vs ARPA models :NK :)6/6 VXUZUIUR Y[OZK \Y ZNK '86' SUJKR TCP/ IP, or rather – the TCP/ IP protocol suite – is not limited to the TCP ... hand, it issues IP addresses and therefore seems to reside at the Internet Layer, as is the case with RARP On the other hand, it allows a device to download the necessary boot file via TFTP and ... contains the address information needed for its routing through the Internet work to the receiving host The dominant protocol at this level is the IP (as in TCP/ IP) , namely the Internet protocol There...
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Practical TCP/IP and Ethernet Networking- P12 ppt
Ngày tải lên :
03/07/2014, 19:21
... into IPv6 They include the following: • The IPv6 addressing structure embeds IPv4 addresses within IPv6 addresses, and encodes other information used by the transition mechanisms • All hosts and ... possible despite the increased size of the addresses Even though the IPv6 addresses are four times longer than the IPv4 addresses, the IPv6 header is only twice the size of the IPv4 header • Improved ... in the case of upgrading hosts to IPv6 the DNS server must first be upgraded to handle IPv6 address records When existing IPv4 hosts or routers are upgraded to IPv6, they may continue to use their...
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Practical TCP/IP and Ethernet Networking- P13 pot
Ngày tải lên :
03/07/2014, 19:21
... is used with IPv4 Initially the designers of IPv6 assumed that it would use ARP as well, but subsequent work by the SIP, SIPP and IPv6 working groups led to the development of the IPv6 ‘neighbor ... the number of the entry in the table Physical address – the MAC address of the device Internet protocol (IP) address – the corresponding IP address Type – the type of entry in the ARP cache There ... incorporated into the TCP/ IP protocol suite to report errors and other useful information about the performance and operation of the network /)36 SKYYGMK YZX[IZ[XK ICMP communicates between the Internet...
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Practical TCP/IP and Ethernet Networking- P14 ppt
Ngày tải lên :
03/07/2014, 19:21
... is the time that the datagram took to travel to the server and back, or the round trip time (RTT) The time to the server is then onehalf of this The correct time at the moment of originating the ... field The server then inserts its current time in the ‘transmit’ field and returns the message In practice, the ‘received’ and ‘transmit’ fields for the server are set to the same value The client, ... by the client inserting its current time in the ‘originate’ field, and sending the ICMP datagram off to the server The server, upon receiving the message, then inserts the ‘received’ time in the...
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