Architectural questions (2)

Service location
Is the current model (everything under HTTP) sufficient?
Any chance to deploy SLP?

Mobility
How to handle mobility/roaming clients?
Session/transport layer like SCTP?  or Mobile IPv6?

32bit assumptions
OSPFv3, BGP4+, NTP - uses 32bit value as node identifier

Multihoming and IPv6
Multihoming mechainsm that does not impact worldwide routing table size