3com 3031 Instruccion De Instalación
OSPF Configuration
495
■
Configure OSPF in consert with NMS
■
Reset an OSPF process
For OSPF multi-instance application and OSPF configuration in MPLS VPN, refer to
Chapter 54.
Chapter 54.
Configuring Router ID
Router ID is a 32-bit unsigned integer that uniquely identifies a router within an
AS. Router ID can be configured manually. If router ID is not configured, the
system will automatically select one from IP addresses of the current interfaces as
the router ID. When you do that manually, you must guarantee that the IDs of any
two routers in the AS are unique. A common practice is to set the router ID to be
the IP address of an interface on the router.
AS. Router ID can be configured manually. If router ID is not configured, the
system will automatically select one from IP addresses of the current interfaces as
the router ID. When you do that manually, you must guarantee that the IDs of any
two routers in the AS are unique. A common practice is to set the router ID to be
the IP address of an interface on the router.
Perform the following in the System View.
To ensure stability of OSPF, the user should determine the division of router IDs and
manually configure them when implementing network planning.
manually configure them when implementing network planning.
The router IDs modified after OSPF is enabled will not take effect until the OSPF is
reset.
reset.
Enabling OSPF Process
OSPF supports multiple-process. When multiple processes are enabled on a router,
it is necessary to specify different numbers for them.OSPF process number is a
local concept, with no effect on its packet exchange with other routers. Therefore,
even though the process numbers of different routers are different, packet
exchange is available.
it is necessary to specify different numbers for them.OSPF process number is a
local concept, with no effect on its packet exchange with other routers. Therefore,
even though the process numbers of different routers are different, packet
exchange is available.
Perform the following in the System View.
By default, OSPF is not enabled.
Notice theses items in enabling OSPF:
■
The default process ID 1 will be selected if no one is specified.
■
If multiple OSPF processes run on a router, you are recommended to specify
different router IDs for different processes with the
different router IDs for different processes with the
router-id
command.
Binding an OSPF with a VPN with the
vpn-instance
command is available in
MPLS VPN application. See the VPN part.
Table 560 Configuring a router ID
Operation
Command
Configure a router ID
router id router-id
Remove a router ID
undo router id
Table 561 Enabling/Disabling OSPF
Operation
Command
Enable OSPF and enter OSPF view
Ospf [ process-id ]
Disable OSPF routing protocol process
undo ospf [ process-id ]