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HELP - BGP Peer dropping, odd VPN log message

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AiroSam
newbie
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Posts: 31
Joined: Mon Jan 30, 2012 7:48 pm
Location: Oklahoma, USA

HELP - BGP Peer dropping, odd VPN log message

Thu Jun 07, 2018 5:24 am

We are currently experiencing constant BGP Peer drops. Our fiber provider is looking into it on their end right now. Figured I'd ask here also.

The BGP Peer is dropping seemingly for no reason. Here is what we're seeing in the Log (which has BGP debugging enabled):
Code: Select all
jun/06 21:14:51 route,bgp,debug Start BGP instance 
jun/06 21:14:51 route,bgp,debug     AS=(our provider's ASN)
jun/06 21:14:51 route,bgp,debug     RouterId=(our provider's IP)
jun/06 21:14:51 route,bgp,debug VPN: Begin forced redistribution 
jun/06 21:14:51 route,bgp,debug VPN: End redistribution
jun/06 21:14:53 route,bgp,debug Connecting 
jun/06 21:14:53 route,bgp,debug     RemoteAddress=(our provider's IP)
jun/06 21:14:53 route,bgp,debug,state Entering Connect state 
jun/06 21:14:53 route,bgp,debug,state     RemoteAddress=(our provider's IP)
jun/06 21:14:53 route,bgp,info TCP connection established 
jun/06 21:14:53 route,bgp,info     RemoteAddress=(our provider's IP)
I'm confused as to what the "VPN: Begin forced redistribution" and "VPN: End redistribution" log messages could mean. It shows up every time the BGP peer drops.

Any clues as to what's going on here?
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Anumrak
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Posts: 1174
Joined: Fri Jul 28, 2017 2:53 pm

Re: HELP - BGP Peer dropping, odd VPN log message

Thu Jun 07, 2018 11:17 am

Check your RAM on router. Maybe your peer begin to redistribute to you full view, you memory ends and that's it?
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AiroSam
newbie
Topic Author
Posts: 31
Joined: Mon Jan 30, 2012 7:48 pm
Location: Oklahoma, USA

Re: HELP - BGP Peer dropping, odd VPN log message

Thu Jun 07, 2018 10:36 pm

Check your RAM on router. Maybe your peer begin to redistribute to you full view, you memory ends and that's it?
Thank you for the suggestion. I kept an eye on the CPU and RAM during the disconnections and they remained stable and far from 100% capacity.

I did eventually hear back from our fiber provider and their logs showed that our peer was closing the connection, even though our fiber line was receiving plenty of light. At the moment we're still not sure what is causing it.
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sri2007
Member Candidate
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Posts: 206
Joined: Wed May 20, 2015 10:14 pm
Location: Lake Grove, NY

Re: HELP - BGP Peer dropping, odd VPN log message

Mon Jun 18, 2018 1:10 pm

Hi, I'll try to upgrade the RouterOS into the most stable bugfix version.
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  4. RouterOS
  5. Forwarding Protocols