ospf area id value
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05-26-2005 07:07 AM - edited 03-02-2019 10:54 PM
My routers are configured ospf area id as decimal value. Need to connect to mainframe which ospf area id configured as ip address format.
If my router area is 22, what will mainframe ospf area would be? 22.22.22.22 ?
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05-26-2005 07:56 AM
No, it will be 0.0.0.22. The OSPF area id is a 32-bit quantity, pure and simple. The dotted decimal format (which looks like an IP address but isn't) is just a convenient way of representing numbers over 255.
Kevin Dorrell
Luxembourg
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05-26-2005 08:28 AM
Thanks Kevin,
So if the ospf id is 300, how the dotted decimal format looks like ?
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05-26-2005 08:54 AM
300 decimal is:
00000000.00000000.000000001.00101100 (expressed as 32 bits)
This is:
0.0.1.45
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05-26-2005 09:32 AM
Not 0.0.1.44 ?
