the trusted network connect tnc architecture

... Manchester and then connecting on to the WCML, and the other to Leeds via the East Midlands and South Yorkshire, with stations in both areas, before connecting to the East Coast Main Line 2.1.3 The broad ... more revenue to offset the cost of the scheme Hence the higher the level of demand, the stronger the economic case 3.2.17 Chapter 7 presents further details of these and other sensitivity tests ... so far into the future The level of demand and the value we place on the benefits that HS2 would have can have significant impacts on the overall case for the rail network It is therefore good

Ngày tải lên: 23/03/2014, 20:20

... re-ceiving the frames from the baseband and forwarding them to the FCSL or DME The receiver upon receiving the frame from the baseband verifies the frame for the command or the data The command ... by the SW-MAC The block diagram of the HW MAC depicting the flow The presence of HW-MAC makes the SW-MAC perceive the PHY layer as any other peripheral This is because the HW-MAC provides the ... appropriate interface to the host platform USB is chosen as the default physical interface to the host The network layer and the applications are implemented on the MAC architecture for the M-HDR air interface

Ngày tải lên: 22/06/2014, 06:20

... me to focus on essential topics. The other topics could easily form the foundation for The Illustrated Network, Volume II: Beyond the Basics. The Illustrated Network Many people frustrated with ... mention of the exciting new peer-to-peer protocols that distrib- ute the server function around the network. There is no mention of the protocols used by chat rooms or services. The book does ... what they do might bring the whole network to its knees. The days are long gone when an interested party could take over the whole network, from clients to servers to routers, and play with them

Ngày tải lên: 04/07/2014, 07:20

... perspective of the service provider (on the global “network edge”) Taken together, these viewpoints will allow us to see exactly how the network works, inside and out Let’s explore the Illustrated Network ... addressing only the last two octets are shown. FIGURE 1.1 The Illustrated Network, showing the routers, links, and hosts on the network Many of the layer addresses used in this book appear in the fi gure ... LAN as well The home offi ce link uses digital Major Parts of the Illustrated Network The Illustrated Network is composed of four major components At the top are two Ethernet LANs with the hosts

Ngày tải lên: 04/07/2014, 07:20

... the routers play the same role in the network, and some have switching capabilities The router’s role depends on its position in the network Generally, smaller routers populate the edge of the ... and the fi le listing of the default directory on the router, which is /var/home/remote (the router uses the Unix fi le system) The listing in the lower right section is the contents of the default ... network, or expose their applications to the network, but their basic function is to run programs However, network systems like routers exist to keep the network running, which is their primary task

Ngày tải lên: 04/07/2014, 07:20

... in the fi gure, but only for illustra-tion (The numbers come from the ISO-RM.) As shown in the fi gure, there is a natural grouping of the fi ve-layer protocol stack at the network layer and the ... add the information its peer needs on the receiving system The network layer adds a header to the information it receives from the trans-port at the sender and passes the whole unit down to the ... protocols, but there are other proto-cols as well The TCP/IP model is based on a fi ve-layer model for networking From bottom (the link) to top (the user application), these are the physical,

Ngày tải lên: 04/07/2014, 07:20

... concept at the network layer is the network address, which provides this information In TCP/IP, the network address is the IP address. Every system in the network receives a network address, whether ... 3, which forwards the data, is the destination reachable.) These forwarding decisions are made at the TCP/IP network layer The Network Layer The network layer delivers data in the form of a packet ... that the user requires The Physical Layer The physical layer contains all the functions needed to carry the bit stream over a physical medium to another system Figure 1.12 shows the position of the

Ngày tải lên: 04/07/2014, 07:20

... application on the host (software). The names of the protocol data units used at each layer are worth reviewing. The unit of the network layer is the frame. Inside the frame is the data unit of the IP ... layer. THE IP LAYER The connectionless IP layer routes the IP packets independently through the collection of network nodes such as routers that make up the “internetwork” that connects the LANs. ... with the interface connected to the LAN. The fi rst is the IPv4 address. For example, the LAN interface on host lnxserver is eth0 and the IPv4 address is 10.10.11.66. The next address is the

Ngày tải lên: 04/07/2014, 07:20

... (rather than transferring the whole fi le to the other host) known as the Network File System (NFS) There is also the Simple Network Management Protocol (SNMP) for network operations For the ... replacing all of the user equipment As the name implies, segmenting breaks the LAN into smaller portions and then reconnects them with an internetworking device Another consequence of the different ... which the IP layer in hosts and routers route connectionlessly to the destina-tion host On the receiving side, TCP accepts the incoming segments from the IP layer and delivers the data they represent

Ngày tải lên: 04/07/2014, 07:20

... ILLUSTRATED NETWORK CONNECTIONS We will start by using Ethereal (Wireshark), the network protocol analyzer introduced in the last chapter, to investigate the connections between systems on the Illustrated ... version of Ethereal on the servers) However, LANs are not the only type of connections used on the Illustrated Network Displaying SONET Links What about link types other than Ethernet? ISPs in the United ... about the links used to connect the nodes of the Illustrated Network We’ll investigate the frame types used in various technolo-gies and how they carry packets We’ll take a long look at Ethernet,

Ngày tải lên: 04/07/2014, 07:20

... over the link itself At the receiver, the physical and data link layers recover the frame from the arriving sequence of bits and extract the packet The packet is then passed to the receiving network ... home network We’ve looked at some of the frame types that carry information back and forth on the network connections FIGURE 3.7 The next data frame in the sequence, showing how the contents of the ... is one of them) The table lists the addresses because the residential gateway does not bother to look the names up However, instead of presenting the port numbers, the log interprets them as a

Ngày tải lên: 04/07/2014, 07:20

... the Subnetwork Access Protocol (SNAP) header. Another 3 bytes are the OUI given to the NIC vendor when they registered with the IEEE, but this fi eld is not always used for that purpose. The ... that there is no sequence numbering in these frames. The UI for- mat is used to indicate that the connectionless IP protocol is in use. The Protocol fi eld identifi es the format and use of the ... typically for an ATM network, and then connect to a router network. On the interface to the premises, the DSLAM demultiplexes traffi c for individual users and forwards it to the appropriate users.

Ngày tải lên: 04/07/2014, 07:20

... to the right, there are lots of networks, but none of them can have many hosts If it is set too far to the left, then there are plenty of hosts allowed, but fewer networks overall In IP, the ... very much the same, except for the address specifi cs We’ll talk about the specifi cs of the IPv4 and IPv6 address formats, network marks, and prefi x lengths, and other topics, in the rest of ... introduced and used as necessary THE NETWORK /HOST BOUNDARY We just saw that the mask determines where the boundary between the network and host portions of the IP address lies This boundary

Ngày tải lên: 04/07/2014, 07:20

... the Internet: by the network portion of the IP address. The whole IP address specifi es the host on the network, and the network portion identifi es the LAN. The boundary between network and host ... the same network (essentially a LAN) must have the prefi x (network por- tion) of their IP addresses (IPv4 or IPv6) be the same. This is how routers route packets between networks that form the ... EUI-64 by the IEEE) of the 48-bit MAC address. The EUI-64 is a concatenation of the 24-bit OUI used in the MAC address with the 40-bit extension formed by prepending the 16 bits 0xFFFE to the lower

Ngày tải lên: 04/07/2014, 07:20

... are properties of their respective owners Trusted Network Connection (TNC) What is TNC?  Open Architecture for Network Access Control  Suite of Standards  Developed by Trusted Computing Group ... to the TNCC and TNCS The PTS establishes the integrity state of the TNC framework and binds this state to the platform transitive-trust chain PTS IMC collects integrity information about TNC ... on the Network  Moving from “who” is allowed on the network   User authentication To “who” and “what” is allowed on the network  Adding Platform Integrity verification Copyright© 2007 Trusted...

Ngày tải lên: 15/03/2014, 17:20

... between the network services and IDRA are mainly descriptive in nature c Network services can be added dynamically according to the needs of the device network layers can register themselves as network ... service-oriented network architecture is the ease with which the network copes with future developments New applications are supported at a network level by plugging in the appropriate network services ... body area network (BAN) using the bluetooth connection The BAN, in turn, can make a connection with a nearby Wi-Fi gateway to provide cheap internet access • The architecture supports the concept...

Ngày tải lên: 21/06/2014, 01:20

... 6500 The design on the left shows the inline CSM design and the design on the right shows the one-arm design The benefit of the one-arm design is that the DoS protection capabilities of the CSM ... the client responds with the appropriate acknowledgement (ACK), the FWSM establishes a connection with the destination device on behalf of the client and then weaves the two connections together ... it can then authenticate the client and allow the connection to the server The configuration is the same as described in TCP Intercept on the FWSM, page 2-10 Performance Considerations The average...

Ngày tải lên: 09/12/2013, 17:15

... via the an Ethernet interface, but this is relatively slow: the data would have to go through the network stack Instead, there is a special interface for communicating with other processes in the ... also emphasizes the difference between the output of ifconfig and the routing table ifconfig shows the address of the interface, the address needed to reach our system For the Ethernet interface, ... Internet, and there’s only one way out to the rest of the network Things look different when you are connected to more than one network On page 310 we’ll look at the differences we need for the ISP...

Ngày tải lên: 11/12/2013, 00:15

... networks in particular We then slowly work our way up from guring TCP IP at the device level to the setup of common applications such as rlogin and friends, the Network File System, and the Network ... to the destination host, where they are reassembled This type of network is called a packet-switched network Among other things, this allows to run interactive applications over the network The ... thick Ethernet is more appropriate For example, the Ethernet at GMU's Mathematics Department uses thick Ethernet, so tra c will not be disrupted each time a host is added to the network One of the...

Ngày tải lên: 22/02/2014, 13:20