Method of transmitting ethernet frame in network bridge and the bridge

• US 8,799,741 B2
• Filed: 02/17/2011
• Issued: 08/05/2014
• Est. Priority Date: 06/29/2006
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jeong, Hong Kyu, Garner, Geoffrey M., Ryu, Hyun Surk
• Primary Examiner(s): Kerveros, James C
• Application Number:
  US13/029,802
• Publication Number:
  US 20110149970A1
• Time in Patent Office: 1,265 Days
• Field of Search: 714/758
• US Class Current: 714/758
• CPC Class Codes: H04L 12/4625 Single bridge functionality, e.g. connection of two networks over a single bridge

Abstract

Provided is a method of transmitting an Ethernet frame via a network bridge, the method includes receiving a frame header from a previous node connected to the network bridge; receiving a header cyclic redundancy check (CRC) flag and header CRC with respect to the frame header from the previous node; determining whether to forward the Ethernet frame including the frame header by referring to the header CRC flag and the header CRC; and forwarding the Ethernet frame from the previous node to a next node connected to the network bridge according to the determination.

Claims

1. A method of transmitting an Ethernet frame via a network bridge, the method comprising:

receiving the Ethernet frame from a previous node;

verifying whether the Ethernet frame is a distance measurement frame for measuring a network distance between a sender and a receiver, by referring to a header of the Ethernet frame; and

forwarding the distance measurement frame with a top priority when the Ethernet frame is verified to be the distance measurement frame as a result of the verification.

2. The method of claim 1, wherein the forwarding the distance measurement frame comprises buffering the Ethernet frame being currently transmitted and preferentially forwarding the distance measurement frame, when an Ethernet frame being currently transmitted to a next node exists.

3. The method of claim 1, wherein the forwarding the distance measurement frame comprises forwarding the distance measurement frame to a source address of the distance measurement frame when an address of the network bridge is identical with a destination address of the distance measurement frame.

4. The method of claim 1, wherein the distance measurement frame comprises at least one of a ping frame transmitted from a service provider to a service receiver and a responsive ping frame transmitted from the service receiver to the service provider in response to the ping frame.

5. The method of claim 4, wherein the service provider comprises a media server and the service receiver comprises a media player.

6. The method of claim 1, wherein the Ethernet frame supports residential Ethernet.

7. A non-transitory computer-readable medium configured to record a program which, when executed by a computer, causes the computer to execute a method of transmitting an Ethernet frame via a network bridge, comprising:

receiving the Ethernet frame from a previous node;

verifying whether the Ethernet frame is a distance measurement frame for measuring a network distance between a sender and a receiver, by referring to a header of the Ethernet frame; and

forwarding the distance measurement frame with a top priority when the Ethernet frame is verified to be the distance measurement frame as a result of the verification.