> Now i wounder if you are fixing the wrong thing. Maybe you should be > fixing the PHY so it does not report up and then down? You say 'very > snall intervals', which should in fact be 1 second. So is the PHY > reporting link for a number of poll intervals? 1min to 10 minutes? > > Andrew > > Yes, according to the log records, the phy polls every second, > but the link status changes take time. > Generally, it takes 10 seconds for the phy to detect link down, > but occasionally it takes several minutes to detect link down, What PHY driver is this? It is not so clear what should actually happen with auto-neg turned off. With it on, and the link going down, the PHY should react after about 1 second. It is not supposed to react faster than that, although some PHYs allow fast link down notification to be configured. Have you checked 802.3 to see what it says about auto-neg off and link down detection? I personally would not suppress this behaviour in the MAC driver. Otherwise you are going to have funny combinations of special cases of a feature which very few people actually use, making your maintenance costs higher. Andrew
