Abstract:
광전송망(Optical Transport Network; OTN)의상위계층에가상 TE 링크를생성하는방법및 장치가제공된다. 가상 TE 링크를생성하기위해노드는 OTN의상위계층에가상 TE 링크를생성하기로결정하고, 노드는 OTN 계층에노드간의 FA-LSP를설정할수 있다. 설정된 FA-LSP는제어평면상에설정될수 있다. 노드는설정된 FA-LSP를노드의상위계층의 TE 링크로등록함으로써가상 TE 링크를생성할수 있다.
Abstract:
본 발명의 일실시예에 따른 다중 레인 기반 이더넷 시스템에서 동적 레인 운용을 위한 송신 장치는, 상기 송신 장치에 의해 사용되고 있는 적어도 하나의 레인이 변동하고 있는지 여부를 모니터링 하는 모니터; 상기 송신 장치의 RS(Reconciliation Sublayer) 계층에게 상기 변동된 적어도 하나의 레인과 관련된 레인 변동 정보를 전송하는 상위 계층 관리부; 및 대응하는 수신 장치의 RS(Reconciliation Sublayer) 계층에게 상기 레인 변동 정보를 전송하는 RS 계층 관리부를 포함한다.
Abstract:
다중 레인을 갖는 이더넷 장치 및 레인 운용 방법이 개시된다. 본 발명의 일 양상에 따르면, 다수의 레인 중 적어도 1 이상의 레인이 선택적으로 통신에 참여하지 않도록 더미 블록이 할당되는 것이 가능하다. 그리고 수신 측에서는 이 더미 블록을 제거하여 데이터를 디코딩하는 것이 가능하다. 이때 전송 측과 수신 측은 레인 상태 메시지를 통해 더미 블록이 할당된 레인의 정보를 주고 받을 수 있으며, 레인 상태 메시지는 이더넷 표준 상의 링크 실패 메시지를 이용할 수 있다. 이더넷(Ethernet), 다중 레인(Multi-Lane), RS 계층, PCS 계층, PMA 계층, 더미 블록
Abstract:
The present invention relates to a device and a method for dynamically saving power consumption of a multi-lane-based Ethernet which increases the energy saving efficiency and minimizes the degradation of network performance in a multi-lane-based Ethernet device. A power saving device in a multi-lane-based Ethernet includes: a plurality of transmission lanes; a multi-lane communication for distributing received communication packets to the transmission lanes, electro-optically converting the packets and transmitting; at least one buffer; a multi-buffer unit for activating or deactivating each of the at least one buffer based on a received buffer control command, storing the received communication packets in an activated buffer and transmitting to the multi-lane communication unit; and a control unit for monitoring the multi-buffer unit, comparing the size of memory which is being used in the multi-buffer unit with a predetermined threshold value and generating a buffer control command to activate or deactivate the at least one buffer of the multi-buffer unit. [Reference numerals] (110) Multi-lane communication unit; (130) Multi-buffer unit; (150) Control unit; (AA) Buffer control command, buffer state monitoring; (BB,CC) Communication packet; (DD) Optical signal
Abstract:
PURPOSE: Multiple-lane operation apparatus and method are provided to transceive Ethernet frame at the minimum loss rate and to transceive data at a data rate lower than the maximum data rate. CONSTITUTION: A high speed Ethernet optical link interface structure includes a medium access control higher layer, a medium access control unit(110), a physical coding sub-layer(120) and multiple lanes. The medium access control higher layer performs activated lane modification control according to a received amount of data. The media access control unit generates an activated lane modification control signal by interoperating with the medium access control higher layer and outputs the generated control signal simultaneous with received frame type data. The physical coding sub-layer encodes the transmitted frame from the medium access control unit, distributes and transmits the frame according to the activated lane modification control signal or rearranges the distributively received data from the multiple lanes, restores into a frame type and transmits the frame to the medium access control unit. The multiple lanes parallelly distributively transmit the transmitted data from the physical coding sub-layer.
Abstract:
PURPOSE: A method and apparatus for transmitting and receiving dynamic range information in high speed Ethernet are provided to generate a range state information frame including range information for range information change. CONSTITUTION: An upper layer unit(212) dynamically changes a range according to traffic state, Ethernet network, and etherent failure. A range information transmitting unit generates a range state information frame including the changed range information. A range controlling unit controls range according to the changed range information.
Abstract:
PURPOSE: An Ethernet device and a lane operation method thereof are provided to selectively and partially operate a multi lane configuring a broadband Ethernet device at high speed. CONSTITUTION: A lane state setting unit(201) sets each lane state in an active state or an inactive state. A coding unit(202) receives data from an RS layer(101). The coding unit codes the data. A block distributing unit(203) distributes a data block to each lane. The block distributing unit assigns a dummy block to the inactive lane. A lane alignment unit(204) aligns data block-distributed lanes.
Abstract:
Provided are methods of transmitting and receiving a multicast or broadcast frame in an optical line terminal (OLT) and an optical network unit (ONU) for a wavelength division multiplexing (WDM)-passive optical network (PON), a WDM-PON system, and an OLT for a WDM-PON. The method of transmitting a multicast or broadcast frame in an OLT for a WDM-PON includes converting and splitting a multicast or broadcast frame input using a single wavelength into a plurality of wavelengths, combining the split wavelengths, and outputting the multicast or broadcast frame. In this way, a multicast or broadcast frame can be transmitted and received, thereby providing a single copy broadcast (SCB) function in a WDM-PON.