Practical TCP/IP and Ethernet Networking- P52 pot

... swaps the target and sender address pairs in the ARP datagram (both HA and PA), inserts its own MAC address into the relevant field, changes the operation code to 2 (ARP reply), and sends it back ... opcode of 3 (RARP request), and identifies itself as both the sender and the target by placing its own physical address in both the sender hardware address field and the target ha...

Ngày tải lên: 03/07/2014, 19:21

... protocol statistics and current TCP/IP network connections. NETSTAT [-a] [-e] [-n] [-s] [-p proto] [-r] [interval] -a Displays all connections and listening ports. -e Displays Ethernet statistics. ... C:\WINDOWS.000>  4(:9:': This provides protocol statistics and current TCP/IP connections using NBT (NetBIOS over TCP/IP) . This is relevant with Windows 95/98 et...

Ngày tải lên: 03/07/2014, 19:21

... selected and viewed as requested by a remote user. The original Web browser was fairly unsophisticated and was driven by command line keyboard inputs. Subsequent 192 Practical TCP/IP and Ethernet ... Group (IRSG). 196 Practical TCP/IP and Ethernet Networking 11.8 CGI CGI (common gateway interface) looks like HTML and can accomplish some of the things that Java appl...

Ngày tải lên: 03/07/2014, 19:21

... load. Broadband A communications channel that has greater bandwidth than a voice grade line and is potentially capable of greater transmission rates. Opposite of baseband. In wide band operation ... both transmission and switching. It supports both voice and data communications. ISO International Standards Organization. ISR Interrupt Service Routine. See Interrupt Handler. ITU...

Ngày tải lên: 03/07/2014, 20:20

... > X.21 CCITT standard governing interface between DTE and DCE devices for synchronous operation on public data networks. X.25 CCITT standard governing interface between DTE and DCE device ... pigments and fillers are added to improve mechanical and/ or electrical properties of this material. Port A place of access to a device or network, used for input/output of digital an...

Ngày tải lên: 03/07/2014, 20:20

... Supervisory control and data acquisition (SCADA) 234, 241–2 Ethernet compatible SCADA systems 241 factory automation systems 236 java-based SCADA 241 stand-alone SCADA systems 234 TCP/IP based ... ping command 253 packets/second 249 percentage utilization 249 with TCP/IP utilities 251 hardware problems 253 intermittent problems 253 netstat-i 253 queue field 253 spray com...

Ngày tải lên: 03/07/2014, 20:20

... Network timeservers 190 11 :NK/TZKXTKZ  11.1 The Internet and internet 191 11.2 The objectives, background and history of TCP/IP 191  :NKUXOMOTUL:)6GTJ/6   :NKNOYZUX_GTJHGIQMXU[TJUL:)6/6 ...  16.8 Protocol analyzers 247 17 :XU[HRKYNUUZOTM:)6/6  17.1 Maintenance and troubleshooting of real TCP/IP networks 249 17.2 Network trouble...

Ngày tải lên: 04/07/2014, 08:21

... gigabit Ethernet Systems . A minimum speed of 100 Mbps is becoming de rigeur on most Ethernet networks and this chapter examines the design and installation issues for fast Ethernet and gigabit Ethernet ... topologies and media access methods. Chapter 3: Ethernet networks . A description of the operation and performance of Ethernet networks commencing with the basi...

Ngày tải lên: 04/07/2014, 08:21

... 802.3 standard, is no longer installed as a new system. This is a broadband version of Ethernet, and uses a 75-ohm coaxial cable for transmission. Each transceiver transmits on one frequency and ... layout of a 10Base2 Ethernet segment is shown in Figure 3.4. Figure 3.4  10Base2 Ethernet segment  The use of Thinnet cable was, and remains, very popular as a cheap and rela...

Ngày tải lên: 04/07/2014, 08:21

... computer and the latter has to be ‘shown’ which portion is NetID, and which is HostID. This is done by defining a netmask in which a ‘1’ is entered for each bit which is part of NetID, and a ‘0’ ... considered ‘classful’, the traditional distinction between class A, B and C addresses and the implied boundaries between the NetID and HostID can be ignored. Instead, whenever ...

Ngày tải lên: 04/07/2014, 08:21

... local prefix, 1111 1110 10, a set of 0s, and an interface identifier. These addresses can only be used by stations connected to the same local network and packets addressed in this way cannot ... allocation of global unicast addresses, local use addresses, and multicast addresses. Space is reserved for NSAP addresses, IPX addresses, and geographic-based unicast addresses. The remai...

Ngày tải lên: 04/07/2014, 08:21

... messages and ICMP query messages as follows. /)36KXXUXSKYYGMKY • Destination unreachable • Time exceeded • Invalid parameters • Source quench • Redirect /)36W[KX_SKYYGMKY • Echo request and ... /)36W[KX_SKYYGMKY • Echo request and reply messages • Time-stamp request and reply messages • Subnet mask request and reply messages Too many ICMP error messages in the...

Ngày tải lên: 04/07/2014, 08:21

... programmers to gain access to these protocols from the process/ application layer. 126 Practical TCP/IP and Ethernet Networking Figure 7.2 Positive acknowledgment philosophy The sliding ... necessary) for a connection to be established in both directions at the same time. 124 Practical TCP/IP and Ethernet Networking 7.1.2 Ports Whereas IP can route the message to...

Ngày tải lên: 04/07/2014, 08:21

... belonging to the DHCP server, it will use 0.0.0.0 and 255.255.255.255, respectively. This is known as a DHCP discover 160 Practical TCP/IP and Ethernet Networking Lease release If the client ... address immediately, and start the leasing process over, from the beginning. 158 Practical TCP/IP and Ethernet Networking client, e.g. c:\windows\bootfiles\startup.exe. Th...

Ngày tải lên: 04/07/2014, 08:21

... Processor (NCAP) Information Model’ that allows smart sensors and actuators to interface to many networks including 238 Practical TCP/IP and Ethernet Networking Each plant point could have attributes ... 240 Practical TCP/IP and Ethernet Networking • Customer traffic measurement • UPS management devices • High-end ... server, and then controlling/supervising it with...

Ngày tải lên: 04/07/2014, 08:21