[c-nsp] How to monitor BGP sessions

[chiel]

Thanks for al the reply's, and Shaun your script works great! thanks
But maybe back to the questions. If I would go for the methode to poll my 
BGP router for a BGP state, let say every minute, There is the change that I 
would mis a flapping state that is taking place with that session. Wouldn't 
it be better to only go with do snmp traps?

But is there some software (for linux) that can priorities from wich 
sessions a bgp trap is sent?

Btw, is there a MIB where you specify the AS number rather than the ip 
number, like in "1.3.6.1.2.1.15.3.1.2.a.b.c.d" ?

chiel


----- Original Message ----- 
From: "Antonio Querubin" <tony at lava.net>
To: "Gert Doering" <gert at greenie.muc.de>
Cc: <cisco-nsp at puck.nether.net>
Sent: Wednesday, April 18, 2007 11:02 PM
Subject: Re: [c-nsp] How to monitor BGP sessions


> On Wed, 18 Apr 2007, Gert Doering wrote:
>
>> I wonder how this looks like if you have multiple IPv6 neighbours 
>> starting
>> with the same 32 bits - 32.1.21.24 is just decimal for 2001:1518: - so
>> what happens if you have another neighbor, 2001:1518:0:3001::2 (or so)?
>
> Only one neighbor entry shows up.  Eg, one of our routers shows the
> following from snmpwalk:
>
> 15.3.1.7.32.1.8.56 = IpAddress: 32.1.8.56
> 15.3.1.7.32.1.14.0 = IpAddress: 32.1.14.0
> 15.3.1.7.32.1.24.136 = IpAddress: 32.1.24.136
> 15.3.1.7.32.1.72.48 = IpAddress: 32.1.72.48
>
> However, there are actually 17 IPv6 BGP peers on that router - 12 of which
> are apparently overlapping on the 32.1.24.136 entry above.
>
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