Question about Type2 redistribution in to OSPF

Mani Devarajan <mani_devarajan@NET.COM> Wed, 21 August 2002 18:30 UTC

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Date: Wed, 21 Aug 2002 11:21:29 -0700
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From: Mani Devarajan <mani_devarajan@NET.COM>
Organization: N.E.T. http://www.net.com
Subject: Question about Type2 redistribution in to OSPF
To: OSPF@DISCUSS.MICROSOFT.COM
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RFC 2328:
=========
Section - 12.4.4.  AS-external-LSAs

Type 2 metrics are assumed to be larger than
the cost of any intra-AS path.

In one other document I read ,it says that for type 2
it will be always external cost irrespective of inter
area cost.

                          type 2
      -----     -----     -----
     |     |   |     |   |     |
     | R1  |   | R2  |   |ASBR |
     |     |   |     |   |     |
      -----     -----     -----
          |10   |   |10    |  |
           -----     ------    ----|
                                   | External Network
                                   |
If ASBR redistributes route for external network at a
cost of 5, R1 will have a route to external network
with cost == 5 or cost > 10.

Thanks in advance,
<Mani