It's similar to the function of a modem. Bridge Segments a network and reduce network traffic by examining the source and destination hardware address of the packet. Only Translation bridges can connect dissimilar network architectures like Ethernet and token ring. Bridge works at the Datalink layer of the OSI model Router Routes packets to remote networks by examining the packet's network source and destination address. Routers reduce broadcast storms because they don't route broadcast packets.
Routers can connect dissimilar network architectures.
Cisco routers run on the IOS- Internetworking Operating System. IOS is the Cisco's operating system. Cisco router can route over 20 different protocols. A separate routing table is maintained for each protocol. Routers operate at the Network layer of the OSI model.