[rssac-caucus] REMINDER FOR REVIEW: Version 3 of RSSAC002 - Measurements of Root Server System

[Robert Martin-Legene]

On 2016-05-17 20:39, George Michaelson wrote:
> UDP frags from the server response happen when the interface MTU drives
> below the size of the response packet in UDP. 

But isn't this true for every networking device along the path? If the
MTU is too low, the packet get fragmented (v4) or discarded (v6)?

> Firewalls block UDP frags.

And home routers / nats.

> Oh, I should add: TCP/UDP offload onto cards plays in the space too, as
> does the kernel (duh) so understanding that the platform uses smart
> cards, and if its BSD or Linux (because they tune Ip differently)
> matters too.

Smart cards for me is something else, but I may have DNSSEC tattooed on
my forehead next time you see me ;-)

How does offloading onto hardware play a role?

-- 
Robert Martin-Legene
Internet Infrastructure Specialist
Packet Clearing House

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