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paoloaga
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Feature request: BGP dampening

Fri Jan 11, 2013 1:43 am

Probably this has already been requested but I can't find the thread.
I think I am not the only one needing BGP flap dampening. It's required by almost any internet exchanges. Expecially now that we have CCR, I think it would be really useful. Is there any hope to find it in ROS 6.x ?
 
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wulfgard
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Re: Feature request: BGP dampening

Fri Jan 11, 2013 11:50 pm

hello
i would also like to see bgp dampening handling but were do you see any internet exchanges requiring this
dampening is protecting your infrastructure not the others from your BGP announces ?

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paoloaga
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Re: Feature request: BGP dampening

Sat Jan 12, 2013 11:42 am

this dampening is protecting your infrastructure not the others from your BGP announces ?
If your customers flap (which is something quite common, expecially when they change configurations), with dampening active, you avoid to propagate flaps to the peers.
 
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wulfgard
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Re: Feature request: BGP dampening

Sat Jan 12, 2013 3:27 pm

this is a common "miss understanding" coming from the way we all write posts

1) initial post was about BGP exchange points
2) my answer stated it was about BGP on PEERING POINTS ( exchanging traffic ) as of TOP-IX
3) answer trying to demonstrate it is a must have for BGP connectivity

:)

in any case BGP dampening is a "MUST HAVE"
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sdtbs
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Re: Feature request: BGP dampening

Sat Feb 28, 2015 10:52 pm

++1

We would also need this feature, especially as the CCR BGP-updates are so slow and frequent flaps are causing continous instabilities...
 
PastuhMedvedey
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Re: Feature request: BGP dampening

Thu May 07, 2015 5:28 pm

++1
We would also need this feature, especially as the CCR BGP-updates are so slow and frequent flaps are causing continous instabilities...
Totally agree! This is the desired function!
RB751U-2HnD, RB2011LS, RB1100AH, RB433, RB411GL, RBSXT, CCR1016
 
leroylim
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Re: Feature request: BGP dampening

Fri May 08, 2015 11:19 am

Agreed that it would be useful to have especially when peering in IXes so as not to propagate route flaps to other peers.

+2
 
mohmultihouse
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Re: Feature request: BGP dampening

Tue Sep 26, 2017 4:15 pm

+1 we also need this.
 
JimmyNyholm
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Re: Feature request: BGP dampening

Fri Oct 06, 2017 2:35 pm

+1 This would be very welcome.
 
bearmeister
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Re: Feature request: BGP dampening

Thu Feb 15, 2018 6:06 am

Do consider ;

4.0 Recommendation
This Routing Working Group document proposes that with the current implementations of BGP flap damping, the application of flap damping in ISP networks is NOT recommended. The recommendations given in ripe-229 and previous documents [2] are considered obsolete henceforth.

If flap damping is implemented, the ISP operating that network will cause side-effects to their customers and the Internet users of their customers' content and services as described in the previous sections. These side-effects would quite likely be worse than the impact caused by simply not running flap damping at all.

5.0 Conclusion
With current vendor implementations, BGP flap damping is harmful to the reachability of prefixes across the Internet. We would like to encourage more work to correct some of the issues highlighted by the work of Mao et al [3], to allow the viewing of prefix flap statistics without applying flap damping, and permit more flexible per eBGP neighbour damping configuration features for network operators.

https://www.ripe.net/publications/docs/ripe-378

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