On 4/25/11 11:14 AM, Satoru Matsushima wrote:
I'm very confused to understand what DS-Lite is.
On 2011/04/21, at 10:22, Yong Cui wrote:
Change "DS-Lite with no NAT or NAT on the B4 element" to "No NAT on AFTR"
However, "draft-ietf-softwire-dual-stack-lite-07" clearly express AFTR is
carrier grade NAT44,
and B4(CPE) should not operate a NAT function. So my question is what does the
DS-Lite function deployment model include.
Current DS-Lite definition does not accept any extension for "DS-Lite with no NAT or NAT on
the B4 element" to "No NAT on AFTR".
I think that to do this as a charter item, we need definition change of
DS-Lite, or use another terminology instead of DS-Lite.
"DS-Lite with no NAT or NAT on the B4 element" or "No NAT on AFTR" are
fancy new names for A+P.
A+P was defined in DS-Lite as possible way of doing it some versions ago
but disappeared through the time.
No idea why, but anyway. Basically DS-Lite and A+P are similar
mechanisms with NAT at different places. See ymbk-aplusp draft, section
"Overall architecture".
Cheers, Jan Zorz
_______________________________________________
Softwires mailing list
[email protected]
https://www.ietf.org/mailman/listinfo/softwires
