交换机端口trunk,access混接带来的毛病

Error Message    SPANTREE-7-BLOCK_PORT_TYPE: Blocking [char] on [char]. Inconsistent port type.

Explanation    The listed interface is being held in spanning-tree blocking state until the port type inconsistency is resolved. The port ID is chars.

Recommended Action    Verify that the configuration and operational state of the listed interface and that of the interface to which it is connected are in the same mode (access or trunk). If the mode is trunk, verify that both interfaces have the same encapsulation type (ISL or 802.1Q). When these parameters are consistent, spanning tree automatically unblocks the interface as appropriate.

Error Message    SPANTREE-7-RECV_1Q_NON_TRUNK: Received 802.1Q BPDU on non trunk [char] 
Explanation    An SSTP BPDU was received on the listed interface, which is not an operational trunking interface. The interface ID is chars.

Recommended Action    Verify that the configuration and operational state of the listed interface and that of the interface to which it is connected are in the same mode (access or trunk). If the mode is trunk, verify that both interfaces have the same encapsulation type (none, ISL, or 802.1Q). Once these parameters are consistent, spanning tree automatically unblocks the interface as appropriate.

通常发生在2个交换机，一个接口是trunk口一个接口是access口，协商出问题，也可能中间间隔多个交换机，但是交换机是普通交换机，不能处理sstp报文。

cisco交换机此时线路中断。