更新时间:09-18 (陈老师)提供原创文章
摘要:从“万兆骨干,千兆汇聚,百兆到桌面”,最后变成千兆骨干的应用,从而实现了万兆核心环形架构,重要区域万兆到汇聚,千兆到接入,百兆到桌面的网络架构。以太网通常使用名为8B/10B编码的技术进行编码。这意味着在传输之前每8位数据都转换为10位,附加的信息用于保证数据完整性。此技术要求以比所需吞吐量快25%的速度传输已编码数据—1Gb/s已编码数据在终端之间以1.25Gb/s的速度传输。对于千兆位以太网速率,8B/10B编码是合理的,但对于10Gb/s传输则效率不高,此时已编码信号将以不切实际的12.5Gb/s快速传输。为了确保以太网保持为成本效益好的技术,万兆位以太网标准引入了新的64B/66B编码方案,使传输速率接近10Gb/s。这允许系统制造商利用最初为SONET/SDH应用开发的成熟的10Gb/s技术。
关键词: 万兆骨干,千兆汇聚,百兆到桌面
Abstract:From “10Gb/s backbone,1Gb/s aggregation,100Mb/s to the desktop”. and finally into a Gigabit backbone applications, in order to achieve a Gigabit core ring structure, an important region to aggregation Gigabit, Gigabit to the access network architecture Mbps to the desktop . Ethernet typically uses 8B/10B encoding technology called code. This means that every 8-bit data before transmission are converted to 10, additional information is used to ensure data integrity. The technical requirements to 25% faster throughput than the required transmission rate of the encoded data-1Gb/s between the encoded data in the terminal to 1.25Gb/s transmission speed. For the Gigabit Ethernet rate, 8B/10B encoding is reasonable, but for 10Gb/s transmission is not efficient, then the encoded signal will be unrealistic to 12.5Gb/s transmission speed. To ensure that remains cost-effective Ethernet technology, Gigabit Ethernet standard bit 64B/66B introduced a new coding scheme, so that transmission rate close to the 10Gb/s. This allows system manufacturers to use the original as SONET/SDH application development of mature 10Gb/s technology.
Key Words:“10Gb/s backbone,1Gb/s aggregation,100Mb/s to the desktop”
构建一个网络工程方案,是需要考虑到很多方面的因素的,例如楼宇的布线,楼宇的规划,性价比,速度设计,成本,售后服务等等,做好这些方面,这是一个开网络公司的必要具备的素质。
在这次论文的过程中,我发现我对网络工程这一学科的兴趣是越来越浓厚了。因为它非常贴近我们的生活。现代人的生活,离不开电脑,离不开关系网,离不开网络。所以,网络的优劣对社会和生活的飞速发展有着重要的影响。所以,我喜欢网络,喜欢那种层层协议,层层规范的井井有条,喜欢那种通过自己的配置与设计,掌握一个公司,一个机构,甚至一个区域的网络,那种运筹帷幄的感觉,的确令人感到兴奋不已,可以叫做成就感。