IPv6 BGP & kernel 4.19

[Clément Guivy]

On 01/12/2019 13:43, Frederik Kriewitz wrote:
> This is our current suspicion too. neighbours and routes are well
> below 4096 in our case. We also had to adjust
> net.ipv6.neigh.default.gc_thresh1/2/3. Since the adjustment it's been
> working fine.
> 

Hi, that's good news. One thing that still confuses me though is that 
the default values for these settings are the same in Debian 9 (4.9 
kernel) and Debian 10 (4.19 kernel), so I would expect the behaviour to 
be the same between both versions in that regard.
Also I'm not sure to understand what this max_size parameter actually 
does since I have it to default value (4096), and yet ipv6 route table 
at the moment is >70k entries large without the kernel complaining.