Method and apparatus for preventing head of line blocking...

Details Method and apparatus for preventing head of line blocking... Method and apparatus for preventing head of line blocking...

2004-09-29

2009-11-03

Ngo, Ricky (Department: 2416)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C370S392000, C370S401000

Reexamination Certificate

active

07613116

ABSTRACT:
An Ethernet switch for preventing head of line blocking by passing an Ethernet packet carrying congestion status information among Ethernet switches over the Ethernet. When a port of an Ethernet switch is congested, the switch informs other Ethernet switches by broadcasting to other switches over the Ethernet an Ethernet packet indicating that the port is congested. If another Ethernet switch finds that one of its traffic classes is destined to the congested port, this switch drops packets of that traffic flow until receiving an Ethernet packet indicating that the congestion is alleviated.

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