控制平面和数据平面之间的区别

先决条件–路由器简介和路由类型

1.控制平面：
在路由控制平面中，是指所有功能和过程，这些功能和过程确定要使用哪个路径发送数据包或帧。控制平面负责填充路由表，绘制网络拓扑，转发表，从而启用数据平面功能。意味着路由器在此做出决定。可以说在一行中，它负责如何转发数据包。

2.数据平面：
在路由数据平面中，是指基于控制平面逻辑将数据包/帧从一个接口转发到另一接口的所有功能和过程。路由表，转发表和路由逻辑构成数据平面函数。数据平面数据包通过路由器，并且帧的输入和输出都是根据控制平面逻辑完成的。用单行表示可以说它负责将数据包从源移动到目的地。也称为转发平面。

控制平面和数据平面之间的区别：

S.No.	CONTROL PLANE	DATA PLANE
01.	Control plane refers to the all functions and processes that determine which path to use to send the packet or frame.	Data plane refers to all the functions and processes that forward packets/frames from one interface to another based on control plane logic.
02.	It is responsible for building and maintaining the IP routing table.	It is responsible for forwarding actual IP packet.
03.	Control plane responsible about how packets should be forwarded.	Data plane responsible for moving packets from source to destination.
04.	Control plane performs its task independently.	Data plane performs its task depending on data plane.
05.	In general we can say in control plane it is learned what and how it can be done.	In general we can say in data plane the actual task is performed based on what is learned.
06.	Control plane packets are processed by router to update the routing table.	The forwarding plane/data plane forwards the packets based on the built logic of control plane.
07.	It includes Spanning Tree Protocol (STP), Address Resolution Protocol (ARP), Routing Information Protocol (RIP), Dynamic Host Configuration Protocol (DHCP) etc.	It includes decrementing Time To Live (TTL), recomputing IP header checksum etc.
08.	Control plane packets are locally originated by the router itself.	Data plane packets go through the router.
09.	Control plane acts as a decision maker in data forwarding.	Data plane acts as a decision implementer in data forwarding.
10.	Routing is performed in the control plane.	Switching is performed in the data plane.