2002年,千兆突破“桎梏”,无可争议地成为今年交换机市场的主流。但随着网络应用的日益多样化,单纯地解决用户带宽需求已不能满足用户的需求,尤其是广大的中小企业用户,它们需要充分利用有限的带宽资源,合理保障投资,同时还要能实现 In 2002, Gigabit broke through the “defects” and undoubtedly became the mainstream of this year’s switch market. However, with the increasingly diversified network applications, simply resolving user bandwidth requirements can no longer meet the needs of users. In particular, the majority of SME users need to make full use of limited bandwidth resources to provide reasonable protection for investment while achieving