IPv6 BGP & kernel 4.19

[Oliver]

On Thu, 24 Sep 2020, Frederik Kriewitz wrote:

> On Thu, Sep 24, 2020 at 2:47 PM Oliver <bird-o at sernet.de> wrote:
> > @Frederik Kriewitz: What did you do fix that problem?
> 
> We're not having jitter issues with debians 4.19 kernel:
> 
> 100 packets transmitted, 100 received, 0% packet loss, time 99143ms
> rtt min/avg/max/mdev = 0.138/0.174/0.236/0.015 ms
> 
> With these settings:
> net.ipv6.neigh.default.gc_thresh1 = 1024
> net.ipv6.neigh.default.gc_thresh2 = 20000
> net.ipv6.neigh.default.gc_thresh3 = 65535
> net.ipv6.route.max_size=500000
Thank for you charing your values. This did not help in our situation:

Sometimes ping times are going up from under 1ms to over 100ms. With
kernel 4.9.0 we see no problems.

Oliver