Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide
Chapter 3 OSPF Configuration Commands
3Com Corporation
3-38
Description
Use the network command to configure the interface running OSPF.
Use the undo network command to cancel the interface running OSPF.
By default, the interface does not belong to any area.
To run the OSPF protocol on one interface, the master IP address of this interface must
be in the range of the network segment specified by this command. If only the slave IP
address of the interface is in the range of the network segment specified by this
command, this interface will not run OSPF protocol.
After OSPF multi-instance is configured, different OSPF processes are bound with
different VPN instances. The network addresses between different processes can be
the same or included. But for the same VPN instance, the network addresses between
different OSPF processes cannot be the same or included. Otherwise, the later
configured command cannot be valid and the following will be displayed: Network
already set in OSPF process xx, that is, if network 10.1.0.0 0.0.255.255 is enabled in
process 100, network 10.1.0.0 0.0.255.255, network 10.1.1.0 0.0.0.255 or network
10.0.0.0 0.255.255.255 will fail to be enabled in other OSPF processes.
Caution:
z OSPF configuration can only enable the interfaces that belong to the same VPN
instance.
z After OSPF is configured multi-instance, if different VPN instances are bound in the
OSPF process, the network addresses between different processes can be the
same or included. But for the same VPN instance, the network addresses between
different OSPF processes cannot be the same or included.
Related command: ospf.
Example
# Specify the interfaces whose master IP addresses are in the segment range of
10.110.36.0 to run the OSPF protocol and specify the number of the OSPF area (where
these interfaces are located) as 6.
[3Com -ospf] area 6
[3Com -ospf-1-area-0.0.0.6] network 10.110.36.0.0 0.0.0.255
# Enable OSPF process 100 on the router and specify the number of the area where
the interface is located as 2.
[3Com ] router id 10.110.1.9
[3Com ] ospf 100