[j-nsp] Re: JunOS BGP Soft Reset Alert

Eric Van Tol eric at atlantech.net
Thu Feb 16 16:35:56 EST 2006

. is the OID tree that holds this
information.  Yes, you can use an NMS to monitor the number of inbound
prefixes and send an alert based upon a threshold.


-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Scott Weeks
Sent: Thursday, February 16, 2006 4:30 PM
To: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] Re: JunOS BGP Soft Reset Alert

----- Original Message Follows -----
From: Chris Adams <cmadams at hiwaay.net>

> Once upon a time, Scott Weeks <surfer at mauigateway.com>
> > said: I had an upstream change one of our BGP sessions
> > (changed from full routes to default route!) and there
> > was no alert.  I found the problem just by my normal
> > looking around at things daily process.  I can't find
> > any SNMP trap for a BGP soft reset.  How do you folks
> > watch for changes in BGP via a soft reset?
> A "soft" reset is generally only seen from the end doing
> the reset. IIRC, a soft reset withdraws all the prefixes
> and re-announces the new set of prefixes.  There's really
> no way to detect that.
> You could monitor the number of prefixes you are receiving
> and take action if that falls below a certain amount.

I guess you do that with some SNMP OID and a NMS that sends
an alert based on thresholds?

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