Concept of LAN cards setting

[ASIFKHAN]

Hello All,


I have one server model rx2660 and it has 2 on board LAN cards.When i went to configure it thru SAM I find there Card Type = 1000BT and Autonegotaiation=ON but i have set it to Autonegoatiation=off ,speed=100 mbps and mode = Full duplex.
So i want to know that the settings that i have done ,will give good performance or not ? though i am getting the connectivity from outside of the server room.

If not then please suggest me the best way of setting and also, when and how we use autonegotiation ??

[Pete Randall]

The rule for 1000BT cards, unlike the older 100BT cards, is to let them autonegotiate. Do not attempt to force them.


Pete

[Tim Nelson]

I second Pete's response.

1000MB cards must be set to auto. ( as well as the switch port it is connected to ).

100MB cards did not work well set to auto, those most people forced to 100FD on the card and at the switch.

So, for 1000MB cards leave the config alone, e.g. default to auto.

[Ganesan R]

Hi,

why can't speed should be 1000 if the switch supports?

[Deependra · Accepted solution]

Autonegotiation setting can be used in cases where you are not sure about the setting on the port where you are connecting the server (this is recommonded also). If the switch port is changed to different speed setting then your connection will still work by setting itself automatically. But if you have set the speed and duplex settings manually then you may loos the connectivity.

If you want to use manual settings for some reason and if your network supports 1000 Mbps then you should set the speed to 1000Mbps.

[ASIFKHAN]

So, finally ichecked the settings of port at switch side and according to that i have set the LAN card to 100Mb/s and mode=full duplex.

But if i would suffer any problem in future then i will definetly set the lAN card to Auto=ON ,so that it can adjust automatically because its a 1000BT card type.

At last
Many Thanks for your all replies.

[ASIFKHAN]

Thanks to all as i got the funda of AUTONEGOTIATION .