Re: BGP Graceful Restart

2021-04-17 Thread lobna gouda
, you don't enable it where BFD is configured. Brgds, LG From: NANOG on behalf of Graham Johnston Sent: Friday, April 16, 2021 10:11 AM To: nanog@nanog.org Subject: BGP Graceful Restart I do believe that I understand the intended purpose of BGP graceful

Re: BGP Graceful Restart

2021-04-17 Thread Mark Tinka
On 4/16/21 16:11, Graham Johnston wrote: I do believe that I understand the intended purpose of BGP graceful-restart. With that said, I was watching a video of a talk given by someone respected in the industry the other day on the use of graceful-shutdown and at the beginning of the talk

Re: BGP Graceful Restart

2021-04-16 Thread Yang Yu
On Fri, Apr 16, 2021 at 11:09 AM Graham Johnston wrote: > Largely, I suspect that his point was that if you otherwise do the > right things during maintenance that graceful-restart has the > potential of being really problematic if things go wrong, and thus he > was discouraging the use of it. Is

Re: BGP Graceful Restart

2021-04-16 Thread Mel Beckman
I use it BGP Graceful Restart in order to avoid route flapping penalties and undesired path selection when adding or removing prefixes on border routers (which entails ACL changes as well). However, when BGP is used as a data center fabric, I have heard it can cause complex failure modes

BGP Graceful Restart

2021-04-16 Thread Graham Johnston
I do believe that I understand the intended purpose of BGP graceful-restart. With that said, I was watching a video of a talk given by someone respected in the industry the other day on the use of graceful-shutdown and at the beginning of the talk there was a quick disclaimer that his topic had

Cisco IOS BGP Graceful-Restart Implementation query

2018-11-15 Thread Florin Vlad Olariu
Hey there! In our environment we generally have ASR-1000X-2s everywhere peering via iBGP/eBGP. These routers have no redundant RPs, hence cannot keep forwarding traffic while the router reboots or crashes. As such, this is a clear example of a router that's only NSF-aware (or