[j-nsp] Junos ospf question

[Per Westerlund]

I don't think overload-mode is what you want.

I used it once before I realized the consequences. It will, as i says in the docs, put itself into the mode "I cannot really be used for transit traffic any more, only send me traffic for my directly attached networks".

This is an OSPF setting (in this context), so OSPF will only advertise directly attached networks that have an interface participating in OSPF, actively or passively.

Non-native OSPF routes, such as static routes announced via OSPF (normally LSA type 5, external) will be immediately dropped from OSPF announcements while in overload-mode!

Caught me by surprise, that way I lost the only way to those networks ……

/Per


25 sep 2013 kl. 09:44 skrev R S <dim0sal at hotmail.com>:

> Yes but I do not want that the entire device do not partecipate to the routing OSPF domain, just for few networks...
> 
> Do you have an example of that ?
> 
> Date: Tue, 24 Sep 2013 09:33:40 -0700
> Subject: Re: [j-nsp] Junos ospf question
> From: ipv6freely at gmail.com
> To: dim0sal at hotmail.com
> CC: juniper-nsp at puck.nether.net
> 
> http://www.juniper.net/techpubs/en_US/junos11.4/topics/topic-map/ospf-overload-mode.html
> 
> 
> 
> On Tue, Sep 24, 2013 at 8:04 AM, R S <dim0sal at hotmail.com> wrote:
> 
> 
> 
> 
> 
> Hi
> 
> 
> 
> I s there a
> 
> way with Junos to manipolate OSPF metric to mark as unreachable a network received
> 
> through a particular path ?
> 
> 
> 
> I was told
> 
> that with Screenos was possible, but I’m wondering if it is true or not ?
> 
> 
> 
> 
> 
> 
> 
> Any
> 
> experience ? feedback ?
> 
> 
> 
> 
> 
> Regards
> 
> 
> 
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> -- 
> Chris Jones
> JNCIE-ENT #272
> CCIE# 25655 (R&S)
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