在过去的一段时间里,中国宽带用户数量增长迅速。像长城宽带的用户量与去年同期比增长5倍多。由于用户数量的迅猛增长,加之网络设备的不完善,天气等自然因素的干扰,致使目前宽带网络运营时常出现不稳定现象,引起用户极大的不满。因此,升级宽带网络基础设施迫在眉睫。但是,怎样升级宽带网呢? In the past few days, the number of broadband subscribers in China has been growing rapidly. The number of users of broadband like Great Wall increased by more than 5 times compared with the same period of last year. Due to the rapid growth of the number of users, together with the imperfection of network equipment and natural disasters such as the weather, instability often occurs in the operation of broadband networks, causing great dissatisfaction among users. Therefore, upgrading the broadband network infrastructure is imminent. However, how to upgrade broadband network?