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2401bis Issue #70 -- Add diffserv (IPv4) and class (IPv6) asselectors
Folks,
Here's a description and proposed approach for:
IPsec Issue #: 70
Title: Add diffserv (IPv4) and class (IPv6) as selectors
Description:
============
Do we need to add support for diffserv (IPv4) and class for IPv6 to
enable creation of SAs per service class? (Note diff serv = DSCP.)
Proposed approach:
==================
Providing support for the creation of SAs per service class was
addressed under Issue #48 (add TOS traffic selector option) by the
addition of support for multiple SAs between a given sender and
receiver, with the same selectors. As noted under Issue #48, diff
serv (aka DSCP) and class will not be added as new selectors.
Instead, it is left to the sender to distribute traffic among these
SAs to achieve the desired QOS. Also, while neither diff serv (aka
DSCP) nor class is an IPsec selector, the sender will need a
mechanism to direct packets with a given (set of) DSCP values to the
appropriate SA. This mechanism might be termed a "filter" or
"classifier." The implementation of such filters or classifiers is a
local matter, since they are not directly visible to nor coordinated
with the peer IPsec implementation.
Thank you,
Karen