KB.15.15

ManualsBrandsHP ManualsNetwork HardwareHP 5412R zl2 Switch

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Figure 32 Changing external route preference compatibility from RFC 1583 to RFC 2328

HP Switch(config)# router ospf

HP Switch(ospf)# no rfc1583-compatibility

HP Switch_8212(ospf)# show ip ospf general

OSPF General Status

OSPF protocol : enabled

Router ID : 10.10.51.1

RFC 1583 compatibility : non-compatible

Intra-area distance : 110

Inter-area distance : 110

AS-external distance : 110

Default import metric : 10

Default import metric type : external type 2

Area Border : no

AS Border : yes

External LSA Count : 9

External LSA Checksum Sum : 408218

Originate New LSA Count : 24814

Receive New LSA Count : 14889

Changes external route preference

setting and displays new setting.

Assigning the routing switch to OSPF areas

For more information, see “Assigning the routing switch to OSPF areas” (page 200).

Configuring an OSPF backbone or normal area

Syntax:

area [[ospf-area-id] | [backbone]] [normal] [[ospf-area-id] |

[backbone]]

After using router ospf to globally enable OSPF and enter the global OSPF

context, execute this command to assign the routing switch to a backbone or other

normal area.

The no form of the command removes the routing switch from the specified area.

Default: No areas; Range: 1 to16 areas (of all types)

ospf-area-id Specifies a normal area to which you are assigning the routing

switch. You can assign the routing switch to one or more areas,

depending on the area in which you want each configured

VLAN or subnet to reside.

You can enter area IDs in either whole number or dotted

decimal format. (The routing switch automatically converts

whole numbers to the dotted decimal format.)

For example, if you enter an area-ID of 1, it appears in the

switch's configuration as 0.0.0.1 and an area-ID of 256

appears in the switch configuration as 0.0.1.0.

An area ID can be a value selected to match the IP address of

a VLAN belonging to the area or a value corresponding to a

numbering system you devise for the areas in a given

autonomous system (AS.)

Entering an area ID of 0 or 0.0.0.0 automatically joins the

routing switch to the backbone area.

The maximum area ID value is 255.255.255.254

(4,294,967,294.)

142 Open Shortest Path First Protocol (OSPF)