从新交换机返回的业务也由该STP处理，使得当外部交换机接收到该消息时，显得好像该消息是发起于旧交换机的。

The return traffic from the new switch is also processed by the STP so that when the foreign switch receives the message, it will appear like it originated from the old switch.

youdao

从新交换机返回的业务也由该STP处理，使得当外部交换机接收到该消息时，显得好像该消息是发起于旧交换机的。

The return traffic from the new switch is also processed by the STP so that when the foreign switch receives the message, it will appear like it originated from the old switch.

youdao