某公司主营证券与期货业务,有多个办公网点,要求企业内部用户能够高速地访问企业服务器,并且对网络的可靠性要求很高。工程师给出设计方案:
①采用核心层、汇聚层、接入层三层结构;
②骨干网使用千兆以太网;
③为了不改变已有建筑的结构,部分网点采用WLAN组网;
④根据企业需求,将网络拓扑设计为双核心来进行负载均衡,当其中一个核心交换机出现故障时,数据能够转换到另一台交换机上,起到冗余备份的作用。
网络拓扑如下图所示。
针对网络的拓扑设计,你的评价是( )。
- A.恰当合理
- B.不恰当,2个核心交换机都应直接上联到路由器上,保证网络的可靠性
- C.不恰当,为保证高速交换,接入层应使用三层交换机
- D.不恰当,为保证核心层高速交换,服务器应放在接入层
正确答案及解析
正确答案
解析
本题考查网络设计的相关知识。
很明显,2个核心交换机都应该直接上联到路由器上,以保证网络的可靠性。
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