HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 14

Route type Multicast static route OSPF IS-IS Unicast static route RIP OSPF ASE OSPF NSSA IBGP EBGP Unknown (route from an untrusted source) Preference 1 10 15 60 100 150 150 255 255 256 Load sharing A routing protocol may find multiple optimal equal-cost routes to the same destination. You can use these routes to implement equal-cost multi-path (ECMP) load sharing. Static routing, IPv6 static routing, RIP, RIPng, OSPF, OSPFv3, BGP, IPv6 BGP, IS-IS, and IPv6 IS-IS support ECMP load sharing. Route backup Route backup can improve network availability. Among multiple routes to the same destination, the route with the highest priority is the primary route and others are secondary routes. The router forwards matching packets through the primary route. When the primary route fails, the route with the highest preference among the secondary routes is selected to forward packets. When the primary route recovers, the router uses it to forward packets. Route recursion To use a route that has an indirectly connected next hop, a router must perform route recursion to find the outgoing interface to reach the next hop. Route redistribution Route redistribution enables routing protocols to learn route information from each other. A dynamic routing protocol can redistribute routes from other routing protocols, including direct and static routing. For more information, see the respective chapters on those routing protocols in this configuration guide. 3