Multiplex communications – Fault recovery – Bypass an inoperative switch or inoperative element of a...
Reexamination Certificate
2005-01-05
2008-08-26
Lee, Andrew (Department: 2616)
Multiplex communications
Fault recovery
Bypass an inoperative switch or inoperative element of a...
C370S238000
Reexamination Certificate
active
07417947
ABSTRACT:
A device includes a primary control unit and a standby control unit. The standby control unit records routing communications exchanged between the primary control unit and an external routing device in accordance with a routing protocol. A standby routing process executing on the standby control unit processes the recorded routing communications when the primary control unit fails. The standby routing process generates state information for executing the routing protocol on the standby control unit without requiring that routing sessions be reestablished with the external routing device.
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Lin Steven
Marques Pedro R.
Juniper Networks, Inc.
Lee Andrew
Shumaker & Sieffert P.A
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