[Xorp-users] BGP conditional route advertising

[mihai at duras.ro]

I'll try adding a feature request then.

Prepending is sometimes not enough.

For example some upstream providers will always place a higher weight,
local pref,etc on a route received from a certain peer and thus render the
as-path prepend unusable.

What I want is:

Announce my route over ISP1 while ISP1 is online (and don't receive any
traffic on the backup ISPs).
If ISP1 down then announce via ISP2.
If ISP2 down..and so on.



> On Fri, Sep 01, 2006 at 11:25:01AM +0300, mihai at duras.ro wrote:
>> Hello,
>>
>> Sorry if this has been asked before but I had no luck while google-ing
>> for
>> it.
>>
>> Does XORP support BGP conditional route advertising as Cisco does with
>> the
>> advertise map per-neighbor command ?
> As far as I know it does not, but it would indeed
> be a nice feature. You could add a feature request
> at http://www.xorp.org/bugzilla/index.cgi with a
> small description of what you want :)
>
>> I'm searching for a solution to advertise some prefixes on a backup link
>> only if the main link goes down (the default gateway is no longer
>> received
>> on it with an AS-PATH of the neighbors AS)
> Isn't prepending your as-path enough?
>
> Regards,
>     Kristian.
>
> --
> Kristian Larsson                                   KLL-RIPE
> Network Engineer                      Net at Once [AS35706]
> +46 704 910401			     kristian at spritelink.se
>