[j-nsp] hidden bgp route

[Pekka Savola]

On Thu, 8 Jan 2004, Bosco Sachanandani wrote:
> My query in general is that what are "hidden" routes? I am using an
> M20 with JunOS , the upstream provider is using a Cisco 7000 series
> box. There are NO inbound BGP policies at my end.

hidden routes are those which are rejected by inbound policy, or have 
unresolvable next-hop.

As you can see, the next-hop is within the advertised prefix itself, 
so next-hop isn't considered valid, and the routes aren't installed.


> admin at srmum1-re0> show route table Gp_VRF hidden    
> 
> Gp_VRF.inet.0: 514 destinations, 525 routes (513 active, 0 holddown, 2 hidden)
> + = Active Route, - = Last Active, * = Both
> 
> 202.123.213.80/28   [BGP/170] 23:37:07, MED 0, localpref 100, from 202.123.213.83
>                       AS path: 19440 I
>                       Unusable
> 213.181.39.0/24     [BGP/170] 23:38:48, localpref 100, from 213.181.39.20
>                       AS path: 6774 I
>                       Unusable
> 
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-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings