首页>
外国专利>
System for adaptive backoff mechanisms in CSMA/CD networks
System for adaptive backoff mechanisms in CSMA/CD networks
展开▼
机译：CSMA / CD网络中的自适应退避机制系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
A system for controlling traffic on a contention-based local area network (LAN) such as one according to the CSMA/CD or Ethernet specification. To selectively preempt low priority messages on the LAN so that high priority messages may be transmitted, the system uses a station profile table (260) that holds information relating to an average frame length for messages transmitted from each station on the LAN. When a station connected to the LAN through a network interface (250) needs to transmit a high priority message such as a voice communication, a traffic monitor (240) checks for a low priority message on the LAN. If a low priority message is detected, a station identifier, priority level, and length of frame already transmitted are determined, and an average frame length is read from the station profile table (260). If the length of frame already transmitted is less than a predetermined threshold, then a computing element (220) transmits the high priority message through the network interface (250) to the LAN, to force a collision. After waiting for a period shorter than the standard backoff period defined by the CSMA/CD specification, the high priority message is retransmitted.
展开▼
