Briefly describe transparent bridges.
What will be an ideal response?
Transparent bridges are also called learning bridges because they build a table of MAC addresses as they receive frames. This means that they "learn" which addresses are on which segments. When a bridge first receives power, its bridging table is empty. Over time, though, it learns which segments have which MAC addresses as frames are forwarded. The bridge uses the source MAC addresses to determine which addresses are on which segments. By determining a frame's origin, the bridge knows where to send frames in the future. Ethernet networks mainly use transparent bridges. Token Ring networks usually employ source-routing bridges.
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