Method and apparatus for transparently providing a failover network device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 22, 2000
Issued Date -
N/A
app pub date -
Aug 25, 1997
filing date -
May 2, 1997
priority date (Note) -
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Abstract
A system and method are disclosed for transferring a network function from a primary network device to a backup network device. The backup network device first detects that the primary network device has failed. The backup network device then sends a message to the primary network device indicating to the primary network device that the primary network device has failed. The IP address of the backup network device changes from a standby IP address to an active IP address, and the IP address of the primary network device changes from the active IP address to the standby IP address. Packets sent to the active IP address are then handled with the backup network device.
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