Dell PowerConnect FCS624S Configuration Guide - Page 997

Configuring OSPF 29 NOTE For an external route that is redistributed into OSPF through a route map, the metric value of the route remains the same unless the metric is set by a set metric command inside the route map. The default-metric command has no effect on the route. This behavior is different from a route that is redistributed without using a route map. For a route redistributed without using a route map, the metric is set by the default-metric command. The following command shows the result of the redistribution filter. Because only one of the static IP routes configured above matches the route map, only one route is redistributed. Notice that the route metric is 5 before redistribution but is 8 after redistribution. PowerConnect#show ip ospf database external extensive Index Aging LS ID 1 2 4.4.0.0 Router 10.10.10.60 Netmask Metric Flag ffff0000 80000008 0000 Disabling or re-enabling load sharing Dell routers can load share among up to eight equal-cost IP routes to a destination. By default, IP load sharing is enabled. The default is 4 equal-cost paths but you can specify from 2 to 6 paths. The router software can use the route information it learns through OSPF to determine the paths and costs. Figure 145 shows an example of an OSPF network containing multiple paths to a destination (in this case, R1). FIGURE 145 Example OSPF network with four equal-cost paths OSPF Area 0 H1 R1 H2 R3 Device R4 H3 R5 H4 R6 In the example in Figure 145, the Dell PowerConnect switch has four paths to R1: • PowerConnect>R3 PowerConnect B-Series FCX Configuration Guide 955 53-1002266-01