However, the frames are not forwarded by normal bridging procedures. 但是，這些訊框不會(huì )被正常的橋接程序所轉送。
To alleviate this, bridging was created to communicate at the data link layer while isolating the physical layer. 為了減輕這個(gè)問(wèn)題，橋接方法被采用，在工工作在物理層的中繼器之基礎上，橋接工作在數據鏈路層。
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