A Bridge operates at
1. Physical layer:
(a) divides large LAN into segments
(b) connects 2 LANs that use same protocol. e.g. if the protocol
is Ethernet then it can connect Fast Ethernet with Gigabit Ethernet.
2. Data link layer:
(a) PDU of this layer is called frame.
(b) Bridge can understand only the MAC addresses, so it forwards the
frames according to their MAC addresses (unique address of NIC) to
the next segment (same protocol)
A bridge does not operate at net layer so it can't understand IP addresses & therefore cant recognize protocols. Thus it can't connect 2 LANs with different protocols. e.g. it can't connect Ethernet with Token Ring or FDDI.
A bridge uses an interface address table to know which computers are connected to which segments. Entries in this table are SOURCE from which the bridge has received the frame & the PORT (MAC) address. By doing this it can know which computer is connected to which port
Working:
When a Bridge receives a frame, it checks the destination address of the frame. If the destination is present in the interface address table, it forwards the frame.
If the destination is not present in the table, the bridge broadcast the frame on the all outgoing ports (except the port from which it arrived). This is called flooding.
Yes. There are no limits to the number of bridges one can build.
Facebook, LinkedIn, MySpace, and pintrest are some good networking devices. Less traditional networking devices include parties, job fairs, professional meetings, etc. The goal of networking can help determine what the best networking idea is.
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A MAC address is used as a unique identifier that is assigned to network interfaces. Two networking devices that transmit packets based on MAC addresses are switches and bridges.
The most common types of bridges are the Beam and Arch Bridges.
Some bridges are for walking or riding a bicycle on (known as footbridges) Larger bridges usually will accommodate automobiles (including trucks) Some of these bridges may join highways to major streets or to other highways (called overpasses) Long bridges that span over waterways may lift to allow a boat to pass underneath them. Some bridges are simply meant to be admired and serve no function otherwise. Another type of bridge is used for networking. It is usually referred to as a wireless bridge. Wireless bridges are used to boost the range of an existing network.
The basic computer hardware components that are needed to set up a network are Routers, Repeaters, Hubs, and Switches, Bridges, Network Interface Card and Network Cables. you can find all these devices at cyprus pc. Cyprus-PC is the best online store to buy computers, computer accessories, networking equipment, laptops, desktops, routers, wifi routers, etc. from the top brands at the best prices in Nicosia, Limassol, Larnaca, Paphos and whole of Cyprus.
1) Router 2) Switches 3) Bridges 4) Cables (Ethernet, Twisted pair, Coaxial, Fiber optic etc) 5) DSLAM 6) EDN, ECN
networking
what are the demerits of networking ?
No, a no. of networking elements are used in networking. some of the networking elements are : routers, switches, cables, servers etc
arch bridges