artech house a professionals guide to data communication in a tcp ip world 2004 phần 6 potx

... purpose is to make origina- tion and destination addresses available to guide data across networks. IP includes several management protocols that are essential to the operation of the Internet. Together, ... Contents TLFeBOOK A Professional’s Guide to Data Communication in a TCP/ IP World E. Bryan Carne Artech House, Inc. Boston • London www.artechhouse.com T...

Ngày tải lên: 14/08/2014, 13:20

... bring IPv6 into the Internet mainstream. Three of them are: create a separate IPv6 backbone; send IPv6 datagrams in IPv4 tunnels; and send IPv6 on dedicated data links. Each of them has had some ... decapsulation, and the user data are said to be decapsulated. At each layer, the combination of data passed to the layer and the header (or header 32 Data Communication Applicati...

Ngày tải lên: 14/08/2014, 13:20

... shows a token and the fields in a frame containing an IP datagram. The frame consists of an IEEE 802.5 header, an IEEE 802.2 LLC header, an IEEE 802.3 SNAP header, the payload (IP datagram), and an ... zeros after five ones are removed to leave the original data stream. 4.1.2.3 Serial Line Internet Protocol Another encapsulation that can be used to transmit IP datagrams over...

Ngày tải lên: 14/08/2014, 13:20

... Bridging 89 Table 5.1 Comparison of Frames on Different LANs Field Size Ethernet IEEE 802.3 Token Ring FDDI Preamble Variable 0×AA-AA -A A-AA-AA -A A-AA-AB 0×AA-AA-AA-AA- AA-AA-AA-AA No 0×AA-AA MAC ... delivered to the Internet layer at 72 Wide Area Networks ATM adaptation layer ATM layer Physical layer AAL Convergence sublayer AAL Segmentation and reassembly sublayerAAL IP datagram 48...

Ngày tải lên: 14/08/2014, 13:20

... in IPv4 and IPv6 datagrams. Encapsulating header Authentication header Original datagram D(1) IPSec authentication tunneling datagram D(2) ESP authentication ESP header ESP trailer Original datagram ... switch Hub/switch WAN E VLAN-unaware domain VLAN-unaware domain VLAN-unaware domain LAN LAN Figure 5.10 VLAN domains. TLFeBOOK Connecting a private network to the Internet has certain ad...

Ngày tải lên: 14/08/2014, 13:20

... The transport overhead contains data that monitors and manages the optical line between the originating and terminating SONET multiplexers. Payloads that originate from the T-carrier family consist ... contains data that monitors and manages the electrical and optical connections between originat- ing and terminating multiplexers. To the SPE are added 27 bytes of transport overhead to...

Ngày tải lên: 14/08/2014, 13:20

... unbalance the DSL modem operation and require modem retraining. During retraining, the modems are unable to transmit data. To make retraining as fast as possible, G.lite modems store up to 16 ... (UCS): Also known as unicode. A 16- bit code intended to support all world languages, particularly Chinese, Japanese, and Korean. 65 ,5 36 (i.e., 2 16 ) code words are available. A...

Ngày tải lên: 14/08/2014, 13:20

... When added to the IP datagram, they form the IP frame. Data service unit Part of data circuit-terminating equipment (DCE) serving a digital line. Data terminal equipment A device that creates, ... The act of sharing data among devices. The act of transfer - ring data among data processing machines over communication links under the control of communication protocol(s...

Ngày tải lên: 14/08/2014, 13:20

... beginning and ending of each IP datagram. Server A device that stores data, organizes and maintains databases, and delivers copies of data files to clients on demand. A process that stores and distributes ... Protocol—Balanced (LAP-B), 60 Link Access Protocol—Channel D (LAP-D), 60 62 , 68 address, 60 61 command frame, 60 final bit, 62 information frame, 62 LAP-D core,...

Ngày tải lên: 14/08/2014, 13:20