Disadvantages of network bridges
* Does not limit the scope of broadcasts
* Does not scale to extremely large networks
* Buffering introduces store and forward delays - on average traffic destined for bridge will be related to the number of stations on the rest of the LAN
* Bridging of different MAC protocols introduces errors
* Because bridges do more than repeaters by viewing MAC addresses, the extra processing makes them slower than repeaters
* Bridges are more expensive than repeaters