H3C S5120-EI Series Configuration Manual

Also see for S5120-EI Series: Installation manual Configuration guide Configuration guide Operation manual Configuration guide

Contents

H3C S5120-EI Series Configuration Manual Manual pdf 11 page image

11Router ARouter BRouter HRouter E16.0.0.217.0.0.315.0.0.0 12.0.0.017.0.0.011.0.0.016.0.0.013.0.0.014.0.0.0Router CRouter DRouter FRouter G11.0.0.112.0.0.112.0.0.215.0.0.115.0.0.217.0.0.116.0.0.113.0.0.113.0.0.214.0.0.114.0.0.214.0.0.314.0.0.417.0.0.211.0.0.213.0.0.3Destination Network Nexthop Interface11.0.0.0 11.0.0.1 212.0.0.0 12.0.0.1 113.0.0.0 12.0.0.2 114.0.0.0 14.0.0.4 315.0.0.0 14.0.0.2 316.0.0.0 14.0.0.2 317.0.0.0 11.0.0.2 2Routing protocol overviewStatic routing and dynamic routingStatic routing is easier to configure and requires fewer system resources. It works well in small, stablenetworks with simple topologies. Its major drawback is that you must reconfigure it whenever the networktopology changes; it cannot self-adjust to network changes.Dynamic routing is based on dynamic routing protocols, which can detect network topology changes andrecalculate the routes accordingly; therefore, dynamic routing is suitable for large networks. Itsdisadvantages are that it is difficult to configure, imposes higher requirements on the system, andconsumes network resources.Routing protocols and routing priorityDifferent routing protocols may find different routes to the same destination. However, not all of thoseroutes are optimal. At a particular moment, only one protocol can uniquely determine the current optimalroute to the destination. For the purpose of route selection, each routing protocol (including static routes) isassigned a priority. The route found by the routing protocol with the highest priority is preferred.