Abstract:
Disclosed are a method for estimating a dimming level, a method for processing a visible light signal, and an apparatus using the same. The method for processing the visible light signal according to an aspect of the present invention comprises the steps of: receiving the visible light signal including at least one pulse; estimating a pulse width of the visible light signal; estimating the dimming level of the visible light signal using the estimated pulse width; and demodulating the visible light signal using the estimated dimming level.
Abstract:
Disclosed are a DMX-VLC address processing method using a DMX-512 network and an apparatus using the DMX-512 network. According to the present invention, the DMX-VLC address processing method comprises: a step of receiving a DMX-512 packet; a step of determining whether the DMX-512 packet is included in a light step data using a start code of the DMX-512 packet; a step of processing the light data using an address recorded in the DMX-512 address unit of the DMX-VLC address included in the DMX-512 packet when the DMX-512 packet is included in the light step data; and a step of executing a non-light data process using the address recorded in the DMX-VLC extension address unit of the DMX-VLC address when the DMX-512 packet is not included in the light step data.
Abstract:
Disclosed are a method for transceiving packets for traffic distribution, and an access point and a terminal apparatus using the same. The access point according to the present invention includes a wireless LAN communications module; a visible light communications module; and a traffic distribution unit to confirm a characteristic of a packet to be transmitted for determining whether the packet is a control packet or a data packet, to classify and transmit the packet using the wireless LAN communications module when the packet is the control packet or a data packet of low capacity, to classify and transmit the packet using the visible light communications module when the packet is a multi-media or a data packet of high capacity.
Abstract:
네트워크 장치가 플로우 기반 네트워크 환경에서 동적으로 갱신된 정보를 제공하기 위해, 임의의 플로우에 대한 상태 정보를 토대로 네트워크 장치 내의 플로우 테이블로부터 제1 정보 및 제2 정보를 획득한다. 일련 정보의 라우트 아이디를 토대로 획득한 제1 정보 및 제2 정보에 업데이트가 발생한 것으로 판단하면, 플로우 테이블을 갱신하여 갱신된 정보를 제공한다.
Abstract:
PURPOSE: A packet transmitting method in a virtual network is provided to raise extensibility and to bind the virtual network according to a service unit. CONSTITUTION: A transmission host device (30) transmits a packet (S510). A virtual router (Ra) which is a connection router of the transmission host device receives the packet. The virtual router adds a reception IP field and a transmission IP field which set an IP address of a first virtual router (R1) to the packet and transmits the packet after checking an IP address (VR2 IP) of a second virtual router (R2) (S520). The second virtual router searches an IP address (VR5 IP) of a fifth virtual router (R5) corresponding to the connection router having a corresponding domain name in reference to a third mapping table, changes a value of a received IP field into the IP address of the fifth virtual router and transmits the packet (S530). A fourth virtual router (R4) receives the packet corresponding to the fourth virtual router and delivers the packet through a routing path which is set according to a routing table if the IP address of the reception IP field does not match with an IP address (VR4 IP) of the fourth virtual router (S540). The fifth virtual router transmits the packet corresponding to the fifth virtual router based on link local data after decapsulating the reception IP field and the transmission IP field (S550). [Reference numerals] (AA,BB) Data
Abstract:
PURPOSE: A method for allocating just resources to network users and an apparatus thereof are provided to dynamically bandwidth on the basis of a bandwidth reduction ratio dynamically determined. CONSTITUTION: A flow information collecting unit collects information about flow(S301). The flow information collecting unit groups the collected flow information(S302). A detection unit compares a ratio value between an F/B value and an F/P value with a predetermined threshold value. In case the ratio value exceeds the predetermined threshold value, a bandwidth control unit calculates a recommended bandwidth(S304,S305). The bandwidth control unit controls the bandwidth of the grouped flow(S306).
Abstract:
PURPOSE: A method for providing forwarding information and QoS(Quality of Service) information in a flow-based network device is provided to dynamically apply forwarding information and QoS processing information to a corresponding flow. CONSTITUTION: If an inputted packet is not a primary packet(S110), a forwarding engine unit obtains the serial information for the packet. The forwarding engine unit first and second information from a flow table within a network device based on the state information for a specific flow(S160). The forwarding engine unit judges based on a rout ID of the serial information whether or not the first and second information are updated(S170). If is judged whether or not the first and second information are updated, the forwarding engine unit updates the flow table(S190).
Abstract:
본 발명은 IPv4/IPv6 통합망에 관한 것으로, 특히 터널링 기술을 적용한 라우팅 시스템에서 데이터를 포워딩하기 위해 필요한 포워딩 테이블을 구성하는 방법에 관한 것으로, 상기 방법은 터널 소스 정보와 루프백 포트정보를 수신하는 단계와; 상기 터널 소스로 수신된 패킷의 처리방식을 지시하기 위한 플래그 정보와, 상기 루프백 포트정보를 서치하기 위한 인덱스 정보를 제1포워딩 테이블에 기록하는 단계와; 루프백 포워딩된 패킷의 처리방식을 지시하기 위한 플래그 정보와, 그 처리방식에 의해 처리된 패킷을 포워딩하기 위해 필요한 터널 정보를 서치하기 위한 인덱스 정보를 제2포워딩 테이블에 기록하는 단계와; 상기 인덱스 정보들이 각각 지시하는 넥스트 홉 테이블의 하드웨어 주소에 상기 수신된 루프백 포트정보와 터널정보를 기록하는 단계;를 포함함을 특징으로 한다. 포워딩 테이블, 루프백, IPv4/IPv6 통합망.
Abstract:
본 발명에 따른 대역폭 브로커는 차등화 서비스(Differentiated Service: DiffServ) 망에서 클라이언트가 서버로 서비스를 요청하기 전에 서비스 수준을 협상하고 그에 따른 자원 할당에 대한 정책을 수립함으로써, 서비스 요청이 들어온 경우 동적으로 자원을 할당하여 사용할 수 있다. 또한, 대역폭 브로커 내의 각 조정기 간에 개방형 API를 제공함으로써 기능을 갱신하거나 추가 개발시 모듈리티와 이식성을 제공할 수 있다. 대역폭 브로커, COPS, SLS, 개방형 API, 차등화 서비스