3Com Switch 7750 Configuration Guide Guide

Basic OSPF Configuration 295
Basic OSPF
Configuration
Before you can configure other OSPF features, you must first enable OSPF and
specify the interface and area ID.
Configuration
Prerequisites
Before configuring OSPF, perform the following tasks:
■ Configuring the link layer protocol
■ Configuring the network layer addresses of interfaces so that the adjacent
nodes are reachable to each other at the network layer
Basic OSPF
Configuration
Basic OSPF configuration includes:
■ Configuring router ID
To ensure stable OSPF operation, you should determine the division of router
IDs and manually configure them when implementing network planning.
When you configure router IDs manually, make sure each router ID is uniquely
used by one router in the AS. A common practice is to set the router ID to the
IP address of an interface on the router.
■ Enabling OSPF
Comware (versatile routing platform) supports multiple OSPF processes. To
enable multiple OSPF processes on a router, you need to specify different
process IDs. OSPF process ID is only locally significant; it does not affect the
packet exchange between an OSPF process and other routers. Therefore,
packets can be exchanged between routers with different OSPF processes IDs.
■ Configuring an area and the network segments in the area. You need to plan
areas in an AS before performing the corresponding configurations on each
router.
When configuring the routers in the same area, please note that most
configurations should be uniformly made based on the area. Wrong
configuration may disable information transmission between neighboring
routers and even lead to congestion or self-loop of routing information.
Displaying OSPF Configuration Optional
“Displaying OSPF
Configuration”
Table 212 OSPF configuration tasks
Configuration Task Description Related section
Table 213 Basic OSPF configuration
Operation Command Description
Enter system view system-view -
Disable protocol multicast
MAC address delivery
undo protocol
multicast-mac enable
Optional
Disable protocol multicast
MAC address delivery
undo protocol
multicast-mac enable
Optional