초록 ▼

A method and apparatus of integrating the IEEE 1394 protocol with the IP protocol in which the IEEE 1394 high speed serial bus operates as the physical and link layer medium and the IP operates as the transport layer. There are differences in the protocols which require special consideration when in

A method and apparatus of integrating the IEEE 1394 protocol with the IP protocol in which the IEEE 1394 high speed serial bus operates as the physical and link layer medium and the IP operates as the transport layer. There are differences in the protocols which require special consideration when integrating the two protocols. The IEEE 1394 configures packets with memory information and the IP operates under channel based I/O thereby necessitating a modification of the data transfer scheme to accomplish IP transfers over the IEEE 1394. Further, due to differences in packet headers, the IEEE 1394 packet header is modified to encapsulate IP packets. Moreover, in order to determine network packets quickly and efficiently, an identifier is inserted in each network packet header indicating that the packet should be processed by the network. Finally, in order to support the ability to insert or remove nodes on the network without a loss of data, the IP interface must not be disturbed. This is accomplished by maintaining constant IP addresses across bus resets which are caused by insertion or removal of nodes from the network.

대표청구항 ▼

[ We claim:] [1.]1. In a data processing system having a network bus, at least one component connected to a node on the network bus and a network manager connected to the network bus having a memory containing a look-up table, the component containing a non-changeable address which does not change u

[ We claim:] [1.]1. In a data processing system having a network bus, at least one component connected to a node on the network bus and a network manager connected to the network bus having a memory containing a look-up table, the component containing a non-changeable address which does not change upon reconfiguration of the network and the component being assigned a changeable address, a method for reconfiguring the network without disturbing the on-going traffic comprising the steps of.A. obtaining the non-changeable address and changeable address for the at least one component;B. placing the non-changeable address and changeable address for the at least one component in the look-up table;C. reconfiguring the network;D. determining the non-changeable address for the at least one component;E. examining in the look-up table the changeable address for the at least one component which corresponds to the non-changeable address; andF. assigning the at least one component with the address which corresponds to the changeable address in the look-up table.