IPX: Internet Packet Exchange Protocol, (IPX: Internetwork Packet Exchange protocol) is a dedicated protocols, it is mainly used by the Novell NetWare operating system. IPX IPX protocol stack is the third-layer protocol.
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IPX IPX protocol constitutes agreement addressing IPX IPX Ethernet encapsulation protocol architecture service announcements set to IPX waterproof IPX protocol level standard water level experimental protocol IPX IPX protocol constitutes a cluster, including the following main agreements: ● IPX: the third layer protocol that is used through the Internet routing and packet forwarding, which specifies a connectionless packet, the equivalent of TCP / IP protocol stack in the IP protocol; ● SPX : Sequenced Packet Exchange (Sequenced Packet Exchange) protocol. IPX protocol stack is the fourth layer in connection-oriented protocol, the equivalent of TCP / IP protocol stack in the TCP protocol; ● NCP: NetWare Core Protocol (NetWare Core Protocol), provides the connection from the client to the server and application; ● SAP: Service Announcement Protocol (Service Advertising Protocol), IPX network to the notice of network services; ● IPX RIP: Novell Routing Information Protocol (Routing Information Protocol), to complete the exchange of routing information between routers and the formation of the routing table. IPX network address of IPX addressing the length of 80 (bit, consists of two parts, first part is the 32-bit network number, the second part of the 48-bit node number. IPX address is usually expressed in hexadecimal numbers. IPX network number assigned by the network management personnel, as needed to define the network number. IPX node number is usually the MAC address of the network interface itself. IPX protocol encapsulated in the Ethernet Ethernet IPX protocol support the following four kinds of packaging format, also known as frame format, they are: ● Ethernet 802.3: also known as the original Ethernet, Cisco devices, known as the ; ● Ethernet 802.2, also known as sap, is the IEEE standard frame format, which is 3.12 to NetWare 4.x version of the standard frame format; ● Ethernet II, also known as arpa, using standard Ethernet Version II The first format; ● Ethernet SNAP, or snap, by adding a network access protocol in (SNAP) extends the IEEE 802.2 header format. with different IPX encapsulation format for communication between devices can not. IPX SAP is a service announcements IPX protocol service announcements, which can be circular, such as network servers and print servers and other network resources and address of the device can provide. routers can monitor SAP update message, the establishment of a network address known to services and the corresponding mapping table. The client can SAP on the router table for the online services and address the information to directly access the appropriate services. Internet Packet Exchange Protocol (IPX) Novell NetWare operating system is supported by the Internet to route packets in an early network protocol. IPX is a kinds of communication for connectionless datagram protocol - similar to TCP / IP protocol suite in the Internet Protocol (ie, IP). The level protocols such as SPX and NCP, mainly to provide error recovery services. In order to choose the best path, IPX use Dynamic distance vector (distance vector) routing protocol, such as Routing Information Protocol (RIP: Routing Information Protocol) or a link state protocol (NLSP: NetWare Link-State Protocol). Novell IPX network address is unique to hexadecimal the system said. It consists of two parts: network number and node number. IPX network number assigned by the network administrator, address, 32 bits long. node number, usually a system network interface card (NIC) for media access control (MAC) address, 48-bit address length. through the MAC address as the node number, the system can send data link nodes to determine the MAC address to use. Novell NetWare IPX router interfaces support four single-package models: * Novell Private (Novell Proprietary) - also known as original 802.3 or Novell Ethernet_802.3, Novell Novell is initially private is the encapsulation mode. * 802.3 - also known as Novell_802.2, 802.3 is the standard IEEE 802.3 frame format. * Ethernet v 2 - also called Ethernet-II or ARPA, Ethernet v2 including standard Ethernet v2 header, which consists of destination address and source address field of composition, followed by EtherType field. * SNAP - also known as Ethernet_SNAP, SNAP header in the original IEEE 802.2 protocol increased the type code, and Ethernet a similar defined EtherType v2. IPX packet data portion of the minimum length of 30 bytes (only the first part), the maximum variable, depending on the use of low-level MAC protocol (Ethernet or Token Ring). Protocol Structure NetWare IPX header: 8 16 bit Checksum Packet Length Transport control Packet Type Destination Network (4 bytes) Destination node (6 bytes) Destination socket (2 bytes) Source network (4 bytes) Source node (6 bytes) Source socket (2 bytes ) * Checksum 16-bit field that when all is set to 1 (FFFF), do not use the checksum. * Packet length specify the complete IPX datagram bytes long. IPX packet size of the arbitrary, the maximum transmission can reach the media unit (MTU) size (no packet fragmentation). * Transport control packets transmitted during a specified number of routers through. When the value is 16, assuming occurrence of routing loops, and dropped packets. * Packet type upper layer protocol to specify which should receive the packet of information. usually consists of two values: o 5, said sequence of packet switching (SPX) o 17 said the NetWare Core Protocol (NCP) * Destination network, Destination node, and Destination socket the target information. * Source network, Source node and Source socket, said source information. IPX protocol IPX protocol and IP protocol settings are two different network layer protocols, they are not the same routing protocol, IPX routing protocols like IP routing agreement that rich,
air force 1 shoes, so set up is simple. but IPX protocols running over Ethernet package must be specified. □ command to start the IPX routing on IPX network and Ethernet ipxrouting set package ipxnetworknetwork [encapsulationencapsulation-type] 1 routing protocol specified The default is RIP ipxrouter rip Note: 1.network range is 1 to FFFFFFFD. □ For example: in this case, WAN's IPX network 3a00, Router1 is connected to the LAN IPX network number for the 2a00, in this local area have a Novell server, IPX network number is 2a00, IPX network numbers the router interface on the same network must be set on the server Novell IPX network number the same. routers to establish a known SAP monitoring services and its own network address table, and once every 60 seconds to send its own SAP table. IPX / SPX protocol description: IPX / SPX protocol is a combination of IPX and SPX protocols, it is the Novell network in order to meet the development of the company developed communication protocols, and highly adaptable, easy installation, and also has routing capabilities, you can communicate between multi segment. which, IPX protocol is responsible for the transmission of data packets; SPX is responsible for the integrity of the data packet transmission. In Microsoft NT operating system, the general use NWLink IPX / SPX-compatible protocol, and NWLink NetBIOX both IPX / SPX compatible protocol, that NWLink protocol, inherits the compatibility protocol IPX / SPX protocol advantages, but also to adapt to Windows network environment. Application: IPX / SPX protocol can generally be applied to large networks (such as Novell). However, if not in the Novell network environment, generally do not use the IPX / SPX protocol, but the use of IPX / SPX-compatible protocol, especially in the Windows 9x/2000 composition the peer in the. [1] IPX waterproof grade level standard for the international industry standard IPX waterproof rating and Japanese Industrial Standard JIS waterproof grade is the same level 0 can be eliminated without protection a vertical drop down the harmful effects of two pairs of vertical direction within 15 degrees of falling water droplets have a protective effect of 3 can be eliminated with the 60 degree vertical drop of the harmful effects of spraying can eliminate four different directions from the harmful effects of splashing water droplets can be eliminated at level 5 the direction of the spray nozzle the harmful effects of water level 6 to eliminate the direction of the nozzle flow boost the top of the harmful effects of 7 meters from the surface of 0.15-1 for 30 minutes, the performance is not affected, watertight top 8 meters from the surface of the water 1.5-30 for 30 minutes, the performance is not affected, watertight water level in the experimental IPXX experiments on water requirements. (1) IPX 1 Method: Vertical Dripping Test Test Equipment: dripping test device placed on the sample: the normal operating position by the sample placed in the rotating sample stage 1r/min sample to water dripping from the mouth of the top is not more than 200mm from the test conditions: dripping capacity of 10. 5 mm / min Duration: 10 min (2) IPX 2 Method: 15 ° tilt test equipment drip: dripping test device placed on the sample: the sample surface and the vertical line into a 15 ° angle to the water dripping from the mouth of the sample from the top is not more than 200mm. After each test a surface, for the other hand, a total of four times. Test conditions: dripping capacity of 30. 5 mm / min Duration: 4 × 2. 5 min (total 10 min) (3) IPX 3 Method: water spray TEST: a. swing-tube water spray test equipment: swing tube splashing water spray test device placed on the sample: select the appropriate radius of the pendulum tube placed in the sample diameter table height position, the sample on the sample stage, so that the top of the water samples from the mouth of not more than 200mm, not rotating sample stage. test conditions: water flows, water holes put tubes is calculated, each hole is 0. 07 L / min, water spray, the swing pipe midpoint of the arc 60 ° on each side of the fountain playing in the hole water samples. be placed on the sample test tube semi-circle center. pendulum swings on both sides of pipe along the vertical 60 °, a total of 120 °. each swing (2 × 120 °) about 4s test of time: continuous water spray 10 min b. nozzle-type water spray test equipment: hand-held test device splash water spray sample placement: to test the top to the hand-held spray nozzle distance of 300mm parallel port to 500mm between the test conditions: Test weights should be installed with the balance of the baffle, the water flow of 10 L / min experimental time: according to the sample matrix shell surface areas, per square meter for 1 min (not including installation area) at least 5 min (4) IPX 4 Method Name: splash TEST: a. pendulum tube splash of test equipment and sample placement: IPX 3 of a the above paragraph are the same; test conditions: In addition to the latter conditions, , and the IPX 3 of a paragraph are the same; water management area is placed on each side of the mid-point within 90 ° arc of the spray jets of water sprayed into the sample. be placed on the sample test tube semi-circle center. placed along the vertical tube line each side of the swing 180 °, a total of about 360 °. each swing (2 × 360 °) about 12s Test Time: IPX 3 of a paragraph above are the same (ie, 10 min). b. nozzle-style splash of test equipment and sample placement: IPX 3 of b above are the same paragraph; test conditions: remove the equipment with balance weights installed on the tailgate, the rest of the above IPX 3 b are the same paragraph; Test Time: IPX 3 of the above b are the same paragraph, that were seized by the sample shell surface areas, per square meter for 1 min (not including the installation of area) at least 5min (5) IPX 5 Method: Spray Test Test Equipment: diameter of nozzle spout 6. 3mm test conditions: the test sample to the water jet away from the 2. 5m ~ 3m, water flow is 12. 5 L / min (750 L / h) Test Time: shell samples were seized by the surface area calculation, 1 min per square meter (not including the installation of area) at least 3 min (6) IPX 6 Method Name: strong water spray test; Test Equipment: diameter of nozzle spout 12. 5 mm test conditions: the test sample to the water jet away from the 2. 5m ~ 3m, water flow is 100 L / min (6000 L / h) Test Time: According to the sample matrix shell surface areas, per square meter for 1 min (not including the installation of area) at least 3 min (7) IPX 7 Method Name: shorter water immersion test when the test equipment and test conditions: immersion tank. The size of the sample into the immersion tank should be made after the samples from the bottom to the surface at least 1m. specimen from the top to the surface at least 0. 15m Test Time: 30 min (8) IPX 8 Method: continuous diving test; Test Equipment: Test tank water to be provided the name, brand, model and serial number. laboratory environmental conditions: ambient temperature should be labeled with the relative degree. Test Method / Specification Test specification: IEC 60529 Edition 2.1:2001-02 reference to the IPX8 test methods. waterproof protection test (a) test method: IEC 60529 Edition 2.1:2001-02 IPX8 samples of normal use by the designated state, completely submerged in water. (b) Sample status: test samples kept under normal use. (c) of the sample set by: height less than 850 mm of the tested case, the bottom should be in the position 2 m below the water surface. (d) test Time: 60 minutes. (e) Check the item: check the DUT test whether there is water inside the shell of the situation and perform functions check. (1) tested whether to provide waterproof protection coat? (2) wires or electrical components whether there is water near the residence? (3) functional test: Check whether the sample can be properly lit? term more Atlas Atlas Reference 1
What is the IPX protocol? how to start windows operating system?
http://article.wxiu.com/wxjs/network...0/12-7253.html
Further reading: 1
http://www.networkdictionary.com/chinese/protocols/ ipx.php
2
http://www.cnpaf.net/Class/IPX/075917300086164409.html
3
http://www.cnpaf.net/Class/IPX/ 0532918532812907.html
4
http://hi.baidu.com/yoyx/blog/item/5...5b211c799.html
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