Live system upgrade
US9698793B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2016 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Apr 30, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/0803
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method for upgrading a programmable logic device (PLD) in a network element is provided. The method includes writing PLD configuration data to a nonvolatile memory and directing a signal control device external to the PLD to hold system control signals in the network element at a predefined state irrespective of direction by the PLD. The method includes loading the PLD configuration data from the nonvolatile memory into a PLD configuration memory in the PLD, while the signal control device holds the system control signals at the predefined values. The method includes directing the signal control device to release the holding the system control signals, so that the PLD directs the system control signals, responsive to completion of the loading the PLD configuration data into the PLD configuration memory. A network element is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.