摘要: What is CRC and how does it works? CRC errors refer to Layer 1 or 2 issues.Two things you should check :1. Both the ends of the interfaces have some speed and duplex settings.2. Check the physical cab... 阅读全文
posted @ 2016-10-26 13:18 rong-shao 阅读(186) 评论(0) 推荐(0) 编辑
摘要: There are three different chains : input , forward and output. Input: This chain is used to control the behavior for incoming connections. Forward: This chain is used for incoming connections that ar... 阅读全文
posted @ 2016-10-26 12:52 rong-shao 阅读(176) 评论(0) 推荐(0) 编辑