Hi. I have a customer that's having issues with 2 new Catalyst Express 500 switches. It seems that whenever we enable the Smartport functionality on any ports on the switch whatever is plugged into that port can no longer communicate to the network.
For example, when we set one of the Gig uplink ports to 'Switch' and link it to another switch (tried both the other Cisco CE500 as well as a variety of D-Link and 3Com switches), we lose the ability to communicate from one switch to the other. But communications between devices on the switch appear to stay up, as long as the ports are set to 'other'.
it doesn't matter what port you uplink, and actually it doesn't matter if it's a workstation or something else. Any time we enable Smartport on any port, that port loses the ability to pass data. So if that port happens to be uplinked to another switch that whole CE500 loses connectivity to the rest of the network.
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