On Fri, Aug 4, 2023 at 2:23 AM Tal Mizrahi wrote:
>
> Hi Tom,
>
> > This is a major problem with regards to L4 checksum computation in
> > deployment. RFC8200 and even IPv4 assume that the transport layer
> > checksum can be correctly calculated solely based on the contents of
> > the packet with
Hi Tom,
> This is a major problem with regards to L4 checksum computation in
> deployment. RFC8200 and even IPv4 assume that the transport layer
> checksum can be correctly calculated solely based on the contents of
> the packet without additional context. A compressed segment list in
> the DA wi
Tom, so moving SRv6 into NAT equivalent space is an interesting take,
granted (and sure better than bis'ing STD).
Thinking along those lines
a) SRv6 becomes L4 aware and goes chasing all the checksums in all L4s to
inc adjust them and gets silicon rev'ed up on every new L4 in the future.
b) someh
On Thu, Aug 3, 2023 at 9:30 AM Tony Przygienda wrote:
>
> well, turns out using a destination address to piggy back some computation
> semantics and especially changing it in mid-flite is not a great idea. Who
> knew ...
Tony,
We already have a working example on how to change destination
addr
If the proposed change is a non-backwards compatible modification right
down at the bottom of the IP stack, that's a pretty big ask. Has there
been any assessment of what this is going to change or break?
Nick
Tony Przygienda wrote on 03/08/2023 17:29:
well, turns out using a destination addr
well, turns out using a destination address to piggy back some computation
semantics and especially changing it in mid-flite is not a great idea. Who
knew ...
as to bis'ing STD86 I was quickly thinking "it's not April yet" ...
-- tony
On Thu, Aug 3, 2023 at 9:43 AM wrote:
> Hi Tal,
>
>
> Plea
Tal,
>From the draft: "Compressed segment lists can be used in the
Destination Address without the presence of a Routing header, and in
this case the IPv6 Destination address can be modified along the path.
This is another case in which the checksum is computed based on the
Destination Address val
Hi Tal,
Please note that there is an existing draft:
https://datatracker.ietf.org/doc/draft-xiao-spring-srv6-checksum/
which attempts to address the problem you found and another one described in
the penultimate paragraph of the Introduction section, in a different way not
requiring to
