7-17 Route Capacity ConfigurationWhen configuring route capacity, go to these sections for information you are interested in:z Route Capacity Configuration Overviewz Route Capacity Limitation Configurationz Displaying and Maintaining Route Capacity Limitation ConfigurationThe term router in this chapter refers to a router in a generic sense or an Ethernet switch running arouting protocol.Route Capacity Configuration OverviewIntroductionIn practical networking applications, there are a large number of routes, especially OSPF routes andBGP routes, in the routing table. Normally, routing information is stored in the memory of the switch.While the size of the routing table increases, the total memory of the switch remains unchanged unlessthe hardware is upgraded. However, upgrading may not always solve the problem.To solve this problem, the switches provide a mechanism to control the size of the routing table; that is,monitoring the free memory in the system to determine whether to add new routes to the routing tableand whether to keep the connection of a routing protocol.Normally, the default configuration of the system can meet the requirements. To avoid decreasingsystem stability and availability due to improper configuration, it is not recommended to modify theconfiguration.Route Capacity LimitationHuge routing tables are usually caused by OSPF route entries and BGP route entries. Therefore, theroute capacity limitation of a switch applies only to OSPF routes and BGP routes, instead of staticroutes and RIP routes. The route capacity limitation is implemented by controlling the size of the freememory of the switch.
