Px/SPX protocol is a combination of IPX (Internetwork Packet Exchange) and SPX (sequences Packet Exchange) protocols, it is a communication protocol developed by Novell to adapt to the development of the network. It is highly adaptive, easy to install, and also has the routing function, which can realize communication between multiple network segments. IPX is responsible for data packet transmission, and SPX is responsible for data packet transmission integrity. In Microsoft's NT operating system, the nwlink IPX/SPX protocol and the nwlink netbiox IPX/SPX protocol are generally used, that is, the nwlink protocol, the compatible protocol inherits the advantages of IPX/SPX and is more suitable for Windows network environments.
In the test just now, nwlink IPX/SPX takes effect when the TCP/IP protocol cannot implement communication between different subnets. To verify the correctness, server a and server B cannot access machines in different subnets except that server a and server B can communicate with each other after deleting this protocol.
