Flexibilis Oy

Finland

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H04L 12/28 - Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks] 2
H04B 7/155 - Ground-based stations 1
H04L 12/42 - Loop networks 1
H04L 12/427 - Loop networks with decentralised control 1
H04L 12/54 - Store-and-forward switching systems 1
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1.

Relaying frames

      
Application Number 14440262
Grant Number 09825691
Status In Force
Filing Date 2012-11-14
First Publication Date 2015-10-15
Grant Date 2017-11-21
Owner FLEXIBILIS OY (Finland)
Inventor
  • Koskiahde, Timo
  • Kujala, Jouni

Abstract

Frames received at a redundant port connecting a node to a communications network are identified by the frames including a sequence number associated with a source. A frame is received at the redundant port from a source. A newest sequence number of frames received from the source at the node is determined. A window of frames from the source is determined by corresponding sequence numbers. The window includes sequence numbers preceding the newest sequence number and associated with reception information of a corresponding frame at the node. The node relays the frame, when a sequence number of the received frame is within the window and the reception information indicates a first reception of the frame at the node.

IPC Classes  ?

  • H04B 7/155 - Ground-based stations
  • H04L 12/703 - Route fault prevention or recovery, e.g. rerouting, route redundancy, virtual router redundancy protocol [VRRP] or hot standby router protocol [HSRP]
  • H04L 12/28 - Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
  • H04L 12/801 - Flow control or congestion control

2.

RELAYING FRAMES

      
Application Number FI2012051112
Publication Number 2014/076354
Status In Force
Filing Date 2012-11-14
Publication Date 2014-05-22
Owner FLEXIBILIS OY (Finland)
Inventor
  • Koskiahde, Timo
  • Kujala, Jouni

Abstract

Frames received at a redundant port connecting a node to a communications network are identified by the frames including a sequence number associated with a source. A frame is received at the redundant port from a source. A newest sequence number of frames received from the source at the node is determined. A window of frames from the source is determined by corresponding sequence numbers, said window comprising sequence numbers preceding the newest sequence number and associated with reception information of a corresponding frame at the node. The node relays the frame, when a sequence number of the received frame is within the window and the reception information indicates a first reception of the frame at the node.

IPC Classes  ?

  • H04L 12/427 - Loop networks with decentralised control
  • H04L 12/42 - Loop networks
  • H04L 12/54 - Store-and-forward switching systems
  • H04L 12/28 - Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]