名位大哥大姐.帮我翻译一段中文翻译成英文....

The data switchboard also is called the exchange type concentrator, is one kind of work in OSI second (data link layer, sees also "the WAN" definition) on, (net card medium access control address) distinguishes based on MAC, can complete the seal to retransmit the data packet function the network equipment It through carries on to the information reproduces, and results in the IP address through internal processing, but it may "study" the MAC address, and deposits it in the dummy home address table, through in the data frame initial sending and the goal receive asked the establishment temporary exchange way, enable the data frame directly to arrive the goal underground site by the source address On switchboard all ports have the intelligence bandwidth which alone enjoys, guarantees on each port the data fast effective transmission Because the switchboard basis transmits the information packet the destination address, independently delivers each information packet