Mechanisms for avoiding problems associated with network address protocol translation
US7006526B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 31, 2001 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Mar 5, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/167
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed are methods and apparatus for avoiding problems caused by converting between two different protocols, such as IPv4 and IPv6. These problems may include, but are not limited to, fragmentation of packets, dropping of packets, and retransmission of packets. Avoiding these problems will reduce the incidence of transmission delays, bandwidth degradation, and additional processing in the packet's transmission path due to such problems. In general terms, the present invention provides mechanisms for modifying a protocol parameter, such as a TCP or UDP parameter, to avoid problems associated with protocol translation, such as fragmentation. In one implementation, the protocol parameter limits the size of a particular portion of the a packet transmitted by a sending computer node or device. For example, a packet size indicator is communicated to the sending computer node so that the sending computer node sends packets limited by the packet size indicator to thereby avoid associated with the size of such packets. In specific TCP embodiments, the size indicator specifies a window size and/or a maximum segment size. For example, if packets transmitted by a sending node to a receiving…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.