Configuring ip route management, Ip route management overview, How ip route management determines best route – Brocade Network OS Administrator’s Guide v4.1.1 User Manual
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Configuring IP Route Management
IP route management overview
IP route management is the term used to refer to software that manages routes and next hops from
different sources in a routing table, from which the Brocade device selects the best routes for forwarding
IP packets. This route management software gets activated automatically at system bootup and does
not require preconfiguration.
IP route management runs on all platforms configured for Layer 3 and does the following:
• Maintains routes submitted by other protocols.
• Supports route redistribution.
• Supports router identification.
• Selects and synchronizes routes to the forwarding information base (FIB).
• Synchronizes the Layer 3 interface to the FIB.
• Supports the following Layer 3 interfaces: virtual ethernet (Ve), router port, loopback, and
management.
NOTE
IP route management supports both IPv4 and IPv6 routes.
How IP route management determines best route
The sources of routes that are added into IP route management are the following:
• Dynamic routes from routing protocols. Open Shortest Path First (OSPF) and Border Gateway
Protocol (BGP) are both supported.
• Static configured routes: You can add routes directly to the route table. When you add a route to the
IP route table, you are creating a static IP route.
• Directly connected routes from interface configuration: When you add an IP interface, the Brocade
device automatically creates a route for the network.
Administrative distance can be configured for route types other than connected routes. IP route
management prefers routes with lower administrative distances.
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