Communication between multiple partitions employing host-network interface
US6654812B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2001 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Jan 1, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/329
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a mainframe class data processing system having multiple logical partitions and a port to a network, a host-network interface is established for reducing network overhead at the multiple partitions. The host-network interface includes, for example, a host channel connection coupling the multiple partitions of the host system to a communications adapter having a network device driver for each network coupled to the adapter. The adapter also includes an address resolution protocol (ARP) cache designed to hold predetermined media headers for the clients coupled to the network(s) for use in forwarding an internet protocol (IP) datagram across the network to one of the clients from a partition of the host system. Provision is also made for partition-to-partition communication of IP datagrams by storing IP addresses of the logical partitions as HOME addresses in the ARP cache of the adapter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.