I'm trying to set up four 6860E switches in a virtual chassis. On both of the switches I've tried so far, they boot up out of the box in auto vf-link-mode. I've tried issuing the command "virtual-chassis vf-link-mode static", but I get the error message "This configuration is not supported for stackport platform." I have not been able to find anything at all online regarding that error.
I've tried editing vcsetup.cfg to remove the line "virtual-chassis vf-link-mode auto", and I've tried changing it to "virtual-chassis vf-link-mode static" and rebooting the switch, but no matter what, it goes back to auto.
I've also tried logging in through the Webview interface and changing the setting that way, but with the same error about the stackport platform.
I'm doing this because I don't have the stacking cables to use with the dedicated stacking ports, and I'm trying instead to use the SFP+ ports. Based on what I've read, I think I should be able to do that, but I can't seem to figure out how.
Thanks in advance for any insight!