Routing Protocol Overview - 3Com Switch 4800G 24-Port Configuration Manual

Routing Protocol
Overview
Static Routing and
Dynamic Routing
Classification of
Dynamic Routing
Protocols
Figure 63 A sample routing table
Router A
17.0.0.1
16.0.0.2
Router D
16.0.0.0
16.0.0.1
14.0.0.2
Router B
15.0.0.2
Router E
15.0.0.0
15.0.0.1
13.0.0.3
Router C
Destination Network
11.0.0.0
12.0.0.0
13.0.0.0
14.0.0.0
15.0.0.0
16.0.0.0
17.0.0.0
Static routing is easy to configure and requires less system resources. It works well
in small, stable networks with simple topologies. Its major drawback is that you
must perform routing configuration again whenever the network topology
changes; it cannot adjust to network changes by itself.
Dynamic routing is based on dynamic routing protocols, which can detect network
topology changes and recalculate the routes accordingly. Therefore, dynamic
routing is suitable for large networks. Its disadvantages are that it is complicated
to configure, and that it not only imposes higher requirements on the system, but
also eats away a certain amount of network resources.
Dynamic routing protocols can be classified based on the following standards:
17.0.0.0 17.0.0.3
17.0.0.2
11.0.0.0
14.0.0.3
14.0.0.4
14.0.0.0
14.0.0.1
12.0.0.0
13.0.0.2
13.0.0.1
13.0.0.0
Next hop
11.0.0.1
12.0.0.1
12.0.0.2
14.0.0.4
14.0.0.2
14.0.0.2
11.0.0.2

Routing Protocol Overview

Router F
11.0.0.2
11.0.0.1
Router G
12.0.0.1
12.0.0.2
Router H
Interface
2
1
1
3
3
3
2
243