Methods and apparatus for selectively discarding packets during overload conditions
US7313093B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2002 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Oct 9, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/32
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus are disclosed for selectively discarding packets such as in, but not limited to a packet switching system, by reacting to packet traffic conditions to reduce or eliminate the indiscriminate discarding of packets during identified overload conditions. Typically, a first element forwards multiple packets to a second element, each of the multiple packets being associated with a packet overload condition type of possible packet overload condition types, including, but not limited to a discard-on-overload type and a retain-on-overload type. The first element forwards a condition indication to the second element. The second element receives the condition indication and a particular packet. The second element discards the particular packet if the received condition indication is associated with the overload state and the packet overload condition type of the particular received packet is associated with the discard-on-overload type. Otherwise, the second element typically further processes the particular packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.