Multi-homing using controlled route leakage at a backup...

Details Multi-homing using controlled route leakage at a backup... Multi-homing using controlled route leakage at a backup...

2011-05-31

2011-05-31

Yao, Kwang B (Department: 2473)

Multiplex communications

Channel assignment techniques

Messages addressed to multiple destinations

C370S312000, C370S401000, C370S242000

Reexamination Certificate

active

07953103

ABSTRACT:
In one embodiment, a network node of a secondary network receives a message from a multi-homed network. The message includes a block of network addresses allocated to the multi-homed network. It is determined that a primary network has advertised an aggregated route including the multi-homed network's allocated block of network addresses. Advertisements of the multi-homed network's allocated block of network addresses are suppressed, after a determination that the primary network has advertised an aggregated route including the multi-homed network's allocated block of network addresses. It may be later be determined that the multi-homed network has lost network connectivity via the primary network. Advertisements of the multi-homed network's allocated block of network addresses are unsuppressed, after a determination that the multi-homed network has lost network connectivity via the primary network.

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