[DNA] Issue 1: Use of 1.5 hours in the text

[Sathya Narayanan <sathya@research.panasonic.com>]

Issue: WiMAX is trying to increase the MaxRtrAdvInterval into hours or 
days. Should we change 1.5 hours to 3 * MaxRtrAdvInterval?
Agreement at the meeting: Yes. Lets make the change. We need to include 
the MaxRtrAdvInterval in the RA so that the hosts can know about the 
value. If different routers on the link use different values for 
MaxRtrAdvInterval, host should use the minimum (Should it be maximum?) 
value of MaxRtsAdvtInterval times three as the lifetime for prefixes in 
the DNAHostPrefixList.

If you have any objection to the proposed change, please post your 
objection on the list.

- Sathya