I've got a question about Spannin Tree and Cisco/3Com switches. Because 3Com doesn't know PVST (Per VLAN Spanning TRee) and Cisco does, it is not a good choice in a multi-vendor situation. What can i do to create redundant layer 2 paths ? 3Com (3300 + 4400) does support Rapid Spanning Tree and Cisco does too. Can someone tell me how to configure it on a Cisco Switch ?