802.3u auto negotiations protocol can be hard to discover if you don't have a syslog, snmp, or device network device capable of monitoring duplex-mismatches. I'm still getting use to 1000 base T not having fail-open support for half duplex and just shutting the interface down. In the past 100base just defaulted to 10base and you could look at the port light. When an interface goes down and there is no connectivity and the OS is Microsoft **** gets complicated pretty quick.
post #11 of 17
6/7/11 at 11:34am