Bridge and route change method of network using the same

Details Bridge and route change method of network using the same Bridge and route change method of network using the same

2003-05-16

2008-03-04

Ngo, Ricky Q. (Department: 2616)

Multiplex communications

Fault recovery

Bypass an inoperative station

C370S401000

Reexamination Certificate

active

07339888

ABSTRACT:
A plurality of bridges are interconnected between respective ports thereof in a ring shape to configure a network containing a redundant route. When a bridge has a blocking port, the bridge transmits to the network a blocking advertisement containing information indicating that it has a blocking port and its address. When a bridge does not have a blocking port, the bridge transmits a line failure notification to other bridges having a blocking port when a line failure is sensed. When a bridge has a blocking port and the line failure notification has been received from other bridges, the bridge transmits to the network a blocking release advertisement indicating that the blocking port has been transited to a forwarding state and the blocking state has been released. When a bridge receives a blocking release advertisement packet, the bridge erases a forwarding database thereof.

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ANSI/IEEE Std 802.1D, 1998 Edition, Part 3: Media Access Control (MAC) Bridges.
ANSI/IEEE Srd 802.1D, 1998 Edition, Part 3: Media Access Control (MAC) Bridges, title page, pp. iv-xix; and pp. 58-113.

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