[j-nsp] Default route in OSPF NSSA

[Harry Reynolds]

Perhaps at the time, the node did not have an area 0 adjacency. With active-backbone detection as a default (can be disabled), such a node won't generate a default.

Regards




-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Serge Vautour
Sent: Thursday, May 10, 2012 10:12 AM
To: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] Default route in OSPF NSSA

Well I'm almost certain I had tried that and it had just stopped advertising a default all together. It's working now:

nssa {
    default-lsa default-metric 1;
    no-summaries;
}

Thanks,Serge


________________________________
 From: Harry Reynolds <harry at juniper.net>
To: Serge Vautour <serge at nbnet.nb.ca>; "juniper-nsp at puck.nether.net" <juniper-nsp at puck.nether.net> 
Sent: Thursday, May 10, 2012 1:14:52 PM
Subject: Re: [j-nsp] Default route in OSPF NSSA
 
IIRC, the juni will send a type 3 network summary if you remove the type-7 statement, which is forcing it to generate a NSSA type 7 external for the default.

HTHs




-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Serge Vautour
Sent: Thursday, May 10, 2012 8:57 AM
To: juniper-nsp at puck.nether.net
Subject: [j-nsp] Default route in OSPF NSSA

Hello,

I've used the following config on an MX960 to generate a default route into an OSPF NSSA area:

area 0.0.1.2 {
    nssa {
        default-lsa {
            default-metric 1;
            type-7;
        }
        no-summaries;
    }
}

It works but the default route shows up as an N1 type route (OSPF NSSA external type):

O*N1    0.0.0.0/0 [110/11] via 4.5.6.7, VLAN7, 00:01:01


When I configure what I think is the equivalent on a Cisco router running IOS XR it sends an O IA route (OSPF Inter Area):

O*IA    0.0.0.0/0 [110/11] via 1.2.3.4, VLAN9, 20:36:59

The AR box always prefers the "O IA" route over the N1 route as expected. I can't seem to find knobs on either box to change between N1 and O IA. 


Would anyone know how to change this in Junos?

Thanks,
Serge
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