交换机和桥接器的区别

先决条件 – 网络设备
1.开关：
交换机基本上是一种硬件或设备，负责将进入各个输入端口的数据引导到特定的输出端口，该端口将进一步将数据带到所需的目的地。因此，它主要用于传输数据路由器、服务器等各种网络设备之间的数据包。它实际上是一个数据链路层设备(第2层设备)，保证转发的数据包无误且准确。交换机利用MAC地址在以便将数据转发到数据链路层。由于交换机从多个端口输入数据，因此也称为多端口桥接器。

2. 桥：
网桥基本上是负责将单个网络划分为多个网段的设备。因此将单个网络划分为多个多个网段的过程称为网络桥接。因此每个网段代表一个单独的冲突域，其中每个域具有不同的带宽。当网络上发生的冲突数量减少时，可以通过使用网桥来提高网络性能。网桥决定必须转发或过滤传入的网络流量。网桥也负责用于维护 MAC(媒体访问控制)地址表。

交换机和网桥的区别：

S.NO.	Switch	Bridge
1.	It is a device which is responsible for channeling the data that is coming into the various input ports to a particular output port which will further take the data to the desired destination.	It is basically a device which is responsible for dividing a single network into various network segments.
2.	A switch can have a lot of ports.	A bridge can have 2 or 4 ports only.
3.	The switch performs the packet forwarding by using hardwares such as ASICS hence, it is hardware based.	The bridge performs the packet forwarding by using softwares so it is software based.
4.	The switching method in case of a switch can thus be store, forward, fragment free or cut through.	The switching method in case of a bridge is store and forward.
5.	The task of error checking is performed by a switch.	A bridge cannot perform the error checking.
6.	A switch has buffers.	A bridge may not have a buffer.