https://community.extremenetworks.com/t5/extremeswitching-exos-switch/disable-auto-negotiation/m-p/41874#M9756 thanx sir,this help me a lot...! Wed, 11 May 2016 16:03:00 GMT zain_mallick 2016-05-11T16:03:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/disable-auto-negotiation/m-p/41872#M9754 <B></B>what is auto negotiation...? what is half and full duplex..? how i disable auto negotiation in extreme x440 r x 460 and x670...?<BR /> Wed, 11 May 2016 13:21:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/disable-auto-negotiation/m-p/41872#M9754 zain_mallick 2016-05-11T13:21:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/disable-auto-negotiation/m-p/41873#M9755 Zain, auto negotiation is where 2 interfaces decide what speed and duplex they will will communicate at. Half duplex means that the interface will send/receive packets in both directions but not simultaneously. Full duplex means the interface will send/receive packets in both directions simultaneously. If you disable auto negotiate on a switch interface, you will have to disable it on the connected device as well. The configuration must match on both interfaces. How to disable auto negotiate: Configure port auto <ON> speed &lt;100|10&gt; duplex <FULL> Hope this helps.</FULL></ON> Wed, 11 May 2016 16:03:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/disable-auto-negotiation/m-p/41873#M9755 Darren_Saliva 2016-05-11T16:03:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/disable-auto-negotiation/m-p/41874#M9756 thanx sir,this help me a lot...! Wed, 11 May 2016 16:03:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/disable-auto-negotiation/m-p/41874#M9756 zain_mallick 2016-05-11T16:03:00Z