On Thu, Jun 13, 2024 at 9:13 AM Andrew Alston - IETF wrote:
> Hi All,
>
>
>
> As I have repeatedly stated in spring and will state so again here. In
> certain circumstances the use of C-SID breaks the checksums as relates to
> transit nodes. RFC8200 lays out specific processing rules for upper
On Thu, Jun 13, 2024 at 1:12 AM Andrew Alston - IETF wrote:
> Hi All,
>
>
>
> As I have repeatedly stated in spring and will state so again here. In
> certain circumstances the use of C-SID breaks the checksums as relates to
> transit nodes. RFC8200 lays out specific processing rules for upper
On Thu, Jun 13, 2024 at 9:28 AM Robert Raszuk wrote:
>
> All,
>
> As far as I recall during IPv6 discussions a notion of end-to-end principle
> of Internet design was treated as paramount. Number of decisions made in
> shaping IPv6 encoding were derived from this.
>
> One of those is checksum wh
On Thu, Jun 13, 2024 at 10:14 AM Robert Raszuk wrote:
>
> Tom,
>
> For starter let's take a look at RFC1958 ..
>
> Entire document is pretty good including statements like this:
>
> The basic argument is that, as a first principle, certain required end-to-end
> functions can only be performed cor
Tom,
For starter let's take a look at RFC1958 ..
Entire document is pretty good including statements like this:
*The basic argument is that, as a first principle, certain required
end-to-end functions can only be performed correctly by the end-systems
themselves.*
Thx,
R.
On Thu, Jun 13, 2024
All,
As far as I recall during IPv6 discussions a notion of end-to-end principle
of Internet design was treated as paramount. Number of decisions made in
shaping IPv6 encoding were derived from this.
One of those is checksum which has been removed from the IP header and
shifted to higher layers (
Hi Tom / All
AFAIK what Robert is trying to say is that compare to IPv4, the IPv6 header
does not have a checksum field. The designers of IPv6 believed that the
link layer checksumming provided by protocols like PPP and Ethernet,
combined with checksums in upper layer protocols like TCP and UDP, w
Along the same though process of a middle box server that is a session
endpoint performing L4 checksum. So the middle box would have to be final
destination if it’s session endpoint and then in that case the L4 checksum
would succeed.
So then I don’t see any issue with the middle boxes.
On Fri
