R21xx-HP FlexFabric 11900 Layer 3 IP Routing Configuration Guide

68
Ste
p
Command Remarks
3. Configure the maximum
number of ECMP routes.
maximum load-balancing maximum
By default, the
maximum number of
ECMP routes is the
same as that configured
in the max-ecmp-num
command. For more
information about the
max-ecmp-num
command, see IP
Routing Command
Reference.
Configuring OSPF preference
A router can run multiple routing protocols, and each protocol is assigned a preference. If multiple routes
are available to the same destination, the one with the highest protocol preference is selected as the best
route.
To configure OSPF preference:
Ste
p
Command Remarks
1. Enter system view. system-view N/A
2. Enter OSPF view.
ospf [ process-id | router-id router-id
| vpn-instance vpn-instance-name ] *
N/A
3. Configure a
preference for OSPF.
preference [ ase ] [ route-policy
route-policy-name ] value
By default, the preference of OSPF
internal routes is 10 and the preference
of OSPF external routes is 150.
Configuring OSPF route redistribution
On a router running OSPF and other routing protocols, you can configure OSPF to redistribute routes
from other protocols, such as RIP, IS-IS, BGP, static, and direct, and advertise them in Type-5 LSAs or
Type-7 LSAs. In addition, you can configure OSPF to filter redistributed routes so that OSPF advertises
only permitted routes.
IMPORTANT:
The import-route bgp command redistributes only EBGP routes. Because the import-route bgp
allow-ibgp command redistributes both EBGP and IBGP routes, and might cause routing loops, use it with
caution.
Configuring OSPF to redistribute routes from another routing protocol
Ste
p
Command Remarks
1. Enter system view. system-view N/A