Re: IPv6 Performance (was Re: IPv4 Pricing)

[Marco Moock via NANOG <nanog () lists nanog org>]

On 01.12.2025 16:44 Bryan Fields via NANOG <nanog () lists nanog org>
wrote:

> At least once or twice a month I'm downloading something and will
> find the IPv4 to transfer significantly faster.  Case in point, I
> downloaded the proxmox iso yesterday to a colo server with 50g
> uplinks.  It loafed at 2.4 mbytes/s using default wget, which of
> course preferred ipv6.  Adding -4 to wget made that shoot up to 80
> mbytes/s.

Have you checked packet loss and latency?

Maybe that is caused by different routes due to peering.

-- 
kind regards
Marco

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