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IP Routing Features
Configuring OSPF
Enable OSPF on the Series 5300XL Switch
When you enable OSPF on the Series 5300XL Switch, the protocol is automat-
ically activated. To enable OSPF on the Series 5300XL Switch, use the CLI
commands:
HPswitch(config)# ip routing
HPswitch(config)#router ospf
The first command enables routing on the Series 5300XL Switch. The second
command launches you into the OSPF router level where you can assign areas
and modify OSPF global parameters.
Not e Regarding Disabling OSPF. If you disable OSPF, the Series 5300XL Switch
retains all the configuration information for the disabled protocol in flash
memory. If you subsequently restart OSPF, that previous configuration will be
applied.
Assign OSPF Areas
Once OSPF is enabled on the system, you can assign areas. Assign an IP
address or number as the area ID for each area. The area ID is representative
of only the primary IP address. To include secondary addresses, you must
enable OSPF on them separately, or use the “all” option in the assignment.
Each VLAN interface on a Series 5300XL switch can support 16 areas.
An area can be normal or a stub.
Normal – Series 5300XL Switches within an OSPF normal area can send
and receive External Link State Advertisements (LSAs).
Stub – Series 5300XL Switches within an OSPF stub area cannot send or
receive External LSAs. In addition, the routing switches in an OSPF stub
area must use a default route to the area’s Area Border Router (ABR) or
Autonomous System Boundary Router (ASBR) to send traffic out of the
area.
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