On sending SLAAC information into split RAs

[Fernando Gont <[e-mail]>]

Folks,

A related issue was raised 
(https://mailarchive.ietf.org/arch/msg/ipv6/EFQKtYNNLI_L7vLq217aSXX-LUM/) 
in the context of draft-gont-6man-slaac-renum, but I felt like 
discussing the topic in its own thread.

SLAAC routers could, in theory, split the information to be conveyed in 
RAs into multiple RA packets.

IMO, not only I'd be curious about such an implementation approach 
(haven't seen found one so far), but I also believe that:

* it would unnecessarily increase multicast traffic
* it increases the chances of configuration inconsistencies


So, in that light, I'm wondering the wg thoughts on the topic. Namely, 
whether:

1) While theoretically allowed, this doesn't have practical implications 
because all infoarmation is always sent in the smallest possible number 
of packets

2) We may want to be explicit about it, and recommend SLAAC routers that 
SLAAC information should be conveyed in the smallest possible number of 
packets (e.g. one packet if you can fit all the information in one)

Thoughts?

Thanks,
-- 
Fernando Gont
SI6 Networks
e-mail: [e-mail]
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