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大 | 中 | 小

[

2008-12-11 16:36 | by 张宴 ]

　　2008年12月11日16:21～16:26，百度的网通服务挂了。网通机房的两个F5 BIG-IP虚拟IP：202.108.22.5、202.108.22.43全部无法访问。16:27左右恢复正常。

　　下面是我写的一个“CDN智能DNS解析分析工具”，可以列出各类用户访问 www.baidu.com 被解析到的服务器IP地址（可以看出百度主站的IDC全在北京，前段时间还有一个北京长城宽带的多线IDC，现在去掉了），当时直接访问百度电信机房的两个虚拟IP是能打开的：

　　中国电信用户[北京]
　　220.181.6.19 （北京市·电信）
　　220.181.6.18 （北京市·电信）

　　中国网通用户[北京]
　　202.108.22.5 （北京市·网通）
　　202.108.22.43 （北京市·网通）

　　中国铁通用户[北京]
　　202.108.22.43 （北京市·网通）
　　202.108.22.5 （北京市·网通）

　　中国联通用户[北京]
　　202.108.22.5 （北京市·网通）
　　202.108.22.43 （北京市·网通）

　　中国移动用户[北京]
　　202.108.22.5 （北京市·网通）
　　202.108.22.43 （北京市·网通）

　　北京市电信通用户
　　202.108.22.5 （北京市·网通）
　　202.108.22.43 （北京市·网通）

　　中国教育网用户[清华大学]
　　202.108.22.43 （北京市·网通）
　　202.108.22.5 （北京市·网通）

　　中国科技网用户[国家科委]
　　220.181.6.18 （北京市·电信）
　　220.181.6.19 （北京市·电信）

　　世纪互联多线机房[北京]
　　220.181.6.19 （北京市·电信）
　　220.181.6.18 （北京市·电信）

　　中国电信用户[上海]
　　220.181.6.19 （北京市·电信）
　　220.181.6.18 （北京市·电信）

　　中国网通用户[上海]
　　202.108.22.43 （北京市·网通）
　　202.108.22.5 （北京市·网通）

　　中国联通用户[上海]
　　202.108.22.5 （北京市·网通ADSL）
　　202.108.22.43 （北京市·网通ADSL）

　　中国教育网用户[上海交通大学]
　　202.108.22.43 （北京市·网通ADSL）
　　202.108.22.5 （北京市·网通ADSL）

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