cisco routing table codes

Note: There is no source code analysis in this article. However, I think it is more useful to understand the essence than to understand the source code, because after understanding the essence, you may not need to look at the source code again, you can even write the source code. This is why the Linux kernel and Cisco websites contain a large number of documents. Introduction: routing is a core concept of t

according to the "instructions". Similar to the address information table of the vswitch, the place where the "indication" is stored on the vro is called a forwarding table. 3. Relationship between two tables 3. 1. Contact The forwarding table directly acts on data packets, while the route table is the basis for gene

routers (if you have not touched cisco/Huawei's router, please bypass), the routing subsystem is generally used as a control plane alone, and the core of the data plane is fast switching. Routing tables are generated through static configuration, dynamic routing protocols, route redirection, Link layer discovery, and

The thought standard IP routing lookup process provides us with an excellent "match-action" routine.That is matched to a route item. The packet is then sent to the next hop indicated by the route entry.Assuming that we abstract the above process of IP routing lookup up one level, we will find that in fact it can be used for other purposes. The abstract expression is: The source address of the packet or the