We are trying to extend our server farm infastructure with Cisco 6509e's running IOS. Current server farm switches are 6509's with CatOS.
The switches are all connected together, with all the VLANs being trunked. Currently the catOS switches are the STP root bridges and active layer 3 interfaces for all the VLANs.
We can make the new switches the STP root bridges no problems. But when we try to make the layer interface by increasing the HSRP priority we get Duplicate IP address messages coming up.
Any help would be great!