HP 6400cl, Management Manual, Page: 528 / 664

IP Routing Features
Configuring OSPF
N o t e
This feature applies only when the switch is configured as an Area Border
Router (ABR) for the area. To completely prevent summary LSAs from being
sent to the area, disable the summary LSAs on each OSPF router that is an
ABR for the area.
To disable summary LSAs for a stub area, enter commands such as the
following:
HPswitch(config-ospf-router)# area 40 stub 3 no-summary
Assigning an Area Range (optional)
You can assign a range for an area, but it is not required. Ranges allow a
specific IP address and mask to represent a range of IP addresses within an
area, so that only that reference range address is advertised to the network,
instead of all the addresses within that range. Each area can have up to 8 range
addresses.
Example. To define an area range for sub-nets on 193.45.5.1 and 193.45.6.2,
enter the following commands:
HPswitch(config)# router ospf
HPswitch(ospf)# area 192.45.5.1 range 193.45.0.0
255.255.0.0
HPswitch(ospf)# area 193.45.6.2 range 193.45.0.0
255.255.0.0
Syntax:
area < ospf-area-id | backbone > range < ip-addr / mask-length >
[no-advertise]
The <
ospf-area-id
> parameter specifies the area number, which can be in IP
address format.
The
<
ip-addr
>
parameter following
range
specifies the IP address portion of
the range. The software compares the address with the significant bits in the
mask. All network addresses that match this comparison are summarized in
a single route advertised by the switch.
The <
mask-length
> parameter specifies the portions of the IP address that a
route must contain to be summarized in the summary route. In the example
above, all networks that begin with 209.157 are summarized into a single route.
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