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Hi there, any know any large enterprise or ISP migrate from PVST+ to MST? We carry a large number of VLANs/trunk and am concerned about exceeding the max stp logical ports.
most likely the port only supports 802.1Q. This is common for Cat4000 platform. The command only works on ports that support both 802.1Q and ISL. You can check with, example, show interface G1/1 capabSo, in your case, if you want to set it to trunk m...