[j-nsp] Hidden IPv4 iBGP routes

[Ivan Ivanov]

Hi,

Harry, in JNCIP study guide is written that if route is discarded because
of AS loop it's not stored in RIB. So it should not be visible with
'hidden' switch.

Or I am wrong and the case here is different.

Thanks!

On Wed, Mar 14, 2012 at 01:29, John Neiberger <jneiberger at gmail.com> wrote:

> Thanks! I just heard from another one of our engineers who is much
> more familiar with Juniper than I am. He already knew about this, so I
> was just a little slow on the uptake.  lol
>
> Thanks to all for the help.
>
> On Tue, Mar 13, 2012 at 6:05 PM, Harry Reynolds <harry at juniper.net> wrote:
> > Yes, I believe that is enough to cause your issue.
> >
> > I believe that independent domain might help with the global as loop
> check, but it too is global and needs to be carefully tested.
> >
> > Else use as loops, which should also be tested. ;) Adding will flap bgp
> IIRC.
> >
> > Regards
> >
> >
> >
> >
> >
> >
> >
> > -----Original Message-----
> > From: John Neiberger [mailto:jneiberger at gmail.com]
> > Sent: Tuesday, March 13, 2012 4:55 PM
> > To: Harry Reynolds
> > Cc: Mohammad; juniper-nsp at puck.nether.net
> > Subject: Re: [j-nsp] Hidden IPv4 iBGP routes
> >
> > We do have the following configured under bgp:
> >
> > group SomeGroupName {
> >    type external;
> >    traceoptions {
> >        file ipv4-ebgp-customer-logs size 10m files 10;
> >        flag state;
> >    }
> >    description "SomeGroup";
> >    family inet {
> >        unicast;
> >    }
> >    remove-private;
> >    local-as XXXXX private;
> > }
> >
> > I wish I could post that stuff without editing.  hehe  Is that enough
> > to break things? And if so, what is the fix?
> >
> > Thanks!
> >
> >
> > On Tue, Mar 13, 2012 at 5:21 PM, Harry Reynolds <harry at juniper.net>
> wrote:
> >> Are there any vrfs on this box using AS XXXX?
> >>
> >> In JUNOS AS loop check is global, so also applies to any vrfs and their
> configured asns.
> >>
> >> HTHs
> >>
> >>
> >>
> >> -----Original Message-----
> >> From: juniper-nsp-bounces at puck.nether.net [mailto:
> juniper-nsp-bounces at puck.nether.net] On Behalf Of John Neiberger
> >> Sent: Tuesday, March 13, 2012 4:17 PM
> >> To: Mohammad
> >> Cc: juniper-nsp at puck.nether.net
> >> Subject: Re: [j-nsp] Hidden IPv4 iBGP routes
> >>
> >> Okay, there is no local AS configured under protocols bgp, and the AS
> >> configured under routing options is correct.
> >>
> >> On Tue, Mar 13, 2012 at 5:11 PM, John Neiberger <jneiberger at gmail.com>
> wrote:
> >>> I'll do that right now. I checked the AS under routing-options, but
> >>> didn't check for a local-as. Thanks! I'm very new to Juniper, so I'm
> >>> still pretty lost.
> >>>
> >>> On Tue, Mar 13, 2012 at 4:29 PM, Mohammad <masalbad at gmail.com> wrote:
> >>>> I think you need to check the autonomous-system under the
> routing-options
> >>>> hierarchy; and the local-as under protocols bgp group hierarchy;
> >>>>
> >>>>
> >>>>
> >>>> Mohammad Salbad
> >>>>
> >>>> _______________________________________________
> >>>> juniper-nsp mailing list juniper-nsp at puck.nether.net
> >>>> https://puck.nether.net/mailman/listinfo/juniper-nsp
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>
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-- 
Best Regards!

Ivan Ivanov