when we have a power down on our Cat5500, all the Unix servers connected to its FE line cards reset the duplex and speed settings to 100mb half duplex stopping them working. I have to manually change the settings to full duplex, then set it to auto for it to negotiate 100mb full. This doesn't happen on any other servers, just on the Unix boxes running Solaris.
Re: Duplex mismatch between Unix servers and Cat5500
You must have the ports set as auto . If they are hardcoded they cannot default back to half duplex . On a 5500 do a set port speed slot/port 100 , set port duplex slot/port full . This cannot default back to half duplex , you must have the ports set for autonegotiation for speed and duplex . My guess is the unix servers are harcoded and you have the switch set for auto . A switch can sense speed but cannot sense duplex unless both ends are set for auto so it will default to half duplex by rule .
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...