OSPF default-information originate behavior

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Content preview: group: i have the following topology in question: LB0----R1--------f0/0--------R2----LB0
   [...]

Content analysis details: (5.4 points, 5.0 required)

 pts rule name description
---- ---------------------- --------------------------------------------------
 5.4 BAYES_99 BODY: Bayes spam probability is 99 to 100%
                            [score: 1.0000]
-0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, low
                            trust
                            [65.55.34.76 listed in list.dnswl.org]
 0.0 FREEMAIL_FROM Sender email is freemail
                            (khalid_khursheed[at]hotmail.com)
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X-Originating-IP: [116.71.22.106]
From: Syed Khalid Ali <khalid_khursheed_at_hotmail.com>
To: <ccielab_at_groupstudy.com>
Subject: OSPF default-information originate behavior
Date: Tue, 30 Nov 2010 17:39:12 +0500
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group:

i have the following topology in question:

LB0----R1--------f0/0--------R2----LB0

R1 is generating a default route with "default-information originate always". If R2 does the same. R2 loses the default route from R1.

Looking at the debug ospf rib, it seems that after issuing this command, R2 deletes the route from R1, however, it does contain the LSA for 0.0.0.0 from R1.

The only thing both routers except with something lower than OSPF AD.

I understand the issue, but looking for a better explanation.

Regards,
Khalid

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Received on Tue Nov 30 2010 - 17:39:12 ART