Abstract:
Disclosed is a method for resizing a network connection in an optical transport network that supports protection switching. The optical transport network receives a flexible optical channel data unit (ODUflex(GFP)) signal. In addition, a link connection resize (LCR) protocol of a hitless adjustment of ODUflex(GFP) (HAO) procedure includes bandwidth resize (BWR) information that prevents a BWR protocol from being initiated. Based on the suppress BWR information, only the LCR protocol is performed between nodes located on a protection path for protection switching, except for the BWR protocol. On the other hand, both the LCR protocol and the BWR protocol are performed between nodes located on a working path. [Reference numerals] (AA) Start; (BB) End; (S10) Perform an LCR protocol and a BWR protocol on a working path(W); (S20) Perform only the LCR protocol on a protection path(P) by using BWR protocol suppression information added to an LCR protocol overhead
Abstract:
Disclosed is a method for resizing a network connection in an optical transport network that supports protection switching. The optical transport network receives a flexible optical channel data unit (ODUflex(GFP)) signal. In addition, between nodes located on a protection path for protection switching, only a link connection resize (LCR) protocol of a hitless adjustment of ODUflex(GFP) (HAO) procedure is performed and a bandwidth resize (BWR) protocol of the HAP procedure is not performed. On the other hand, both the LCR protocol and the BWR protocol are performed between nodes located on a working path. [Reference numerals] (AA) Start; (BB) End; (S10) Perform an LCR protocol and a BWR protocol on a working path(W); (S20) Perform the LCR protocol on a protection path(P)
Abstract:
PURPOSE: A serial-parallel channel-compatible transmitting device in an optical transport network and a method thereof are provided to guarantee intercompatability between 40GBASE-LR4 optical modules or 40GBASE-FR optical modules and also guarantee intercompatability between an existing 40G 300pin MSA(Multi Source Agreement) optical module and a new 40GBASE-FR optical module. CONSTITUTION: An SFI(SerDes Framer Interface)-5.2 interface unit includes an SFI-5.2 receiving interface unit(10) and an SFI-5.2 transmitting interface unit(13). An OTL(Optical Transport Unit)3.4 interface unit includes an OTL3.4 receiving interface unit(11) and an OTL3.4 transmitting interface unit(14). When a 40G 300pin MSA(Multi Source Agreement) optical module is interfaced with a 40GBASE-FR optical module, a 40G serial-parallel channel compatibility transmitting device(1a) and the 40GBASE-FR optical module are operated in an SFI-5.2 interface mode.
Abstract:
PURPOSE: A packet-optical integrated switch is provided to perform a conversion operation and a switching operation between the packet signal of Ethernet and optical transport unitlevel2(OTU2) optical signal. CONSTITUTION: A packet line card(100) outputs the packet signal of Ethernet through a pre-set output port. A packet switch fabric(200) transmits the packet signal to destination address which is included in the packet signal. 10gigabit Ethernet(10GbE)/OTU2 integrated line card(300) converts the packet signal to OTU2 optical signal including a pre-set wavelength. The converted optical signal is allocated to a pre-set wavelength division multiplexing port by a pre-set wavelength. A wavelength selection switch fabric(400) exchanges the optical signal by the wavelength.
Abstract:
A method for QoS management on Ethernet based NGN(Next Generation Network) capable of providing service quality and bandwidth which the Ethernet frame is discriminated is provided to allocate the bandwidth about an Ethernet frame efficiently. A transfer network interface generates Ethernet flow based on a service management rule and frame analysis information(S330). The transmission network interface sets up bandwidth based on the generated Ethernet flow(S340). The transmission network interface sets up the Ethernet frame QoS(Quality of Service) based on the priority information included in VLAN(Virtual Local Area Network) tag information(S350). The transmission network interface controls the Ethernet frame. The transmission network interface outputs the Ethernet frame to the Ethernet transmission network(S360).
Abstract translation:提供能够提供以太网帧被鉴别的服务质量和带宽的基于以太网的基于以太网的NGN(下一代网络)的QoS管理方法,以有效地分配关于以太网帧的带宽。 传输网络接口根据业务管理规则和帧分析信息生成以太网流(S330)。 传输网络接口根据生成的以太网流量建立带宽(S340)。 传输网络接口基于VLAN(虚拟局域网)标签信息中包含的优先级信息,建立以太网帧QoS(Quality of Service,服务质量)(S350)。 传输网络接口控制以太网帧。 传输网络接口将以太网帧输出到以太网传输网络(S360)。
Abstract:
본 발명은 POS 기술과 EoS 기술을 하드웨어 단일 플랫폼으로 구성하여 사용자의 필요에 따라 POS 또는 EoS를 선택할 수 있는 EoS 및 POS을 위한 단일 플랫폼 구조 및 그 플랫폼 구조의 프레임 포맷 방법을 제공한다. 그 단일 플랫폼 구조는 패킷 오버 동기식 디지털 계위(Packet Over Synchronous Digital Hierarchy(SDH):POS) 또는 이더넷 오버 SDH(Ethernet over SDH:EoS)을 선택적으로 처리할 수 있는 EoS 및 POS 처리기를 포함하는 SDH 접속 및 처리부; 및 EoS 및 POS 처리기에 연결되고 POS 또는 EoS의 프레임을 선택적으로 처리하는 프레임 처리부;를 포함한다. 본 발명의 단일 플랫폼 구조는 사용자가 액세스망뿐만 아니라 백본망의 네트워크 구성에 따라 POS 또는 EoS 기술 중 하나를 자유롭게 선택할 수 있는 장점을 가진다.
Abstract:
A single platform structure for a POS(Packet Over SDH(Synchronous Digital Hierarchy)) and EOS(Ethernet Over SDH), and a frame formatting method of the same are provided to be applied for a packet over WDM(Wavelength Division Multiplexing) technique and easily applied for a high capacity system environment. An SDH connecting and processing unit(100) selectively processes a POS or an EOS. A frame processing unit(200) selectively processes a frame of the POS or the EOS. A QoS control and packet I/O(Input/Output) processing unit(300) is connected with the frame processing unit(200) through an SPi(Synchronous Physical Interface). A frame switch unit(400) is connected with the QoS control and packet I/O processing unit(300). Each port of the frame switch unit(400) is connected with the QoS control and packet I/O processing unit(300) through eight ports, and connected with a backplane through sixteen ports.