Layer Two Tunneling Protocol Extensions (l2tpext)
Layer 2 Virtual Private Networks (l2vpn)
Mobility for IP: Performance, Signaling and Handoff Optimization (mipshop)
Network-based Localized Mobility Management (netlmm)
Point-to-Point Protocol Extensions (pppext)
Site Multihoming by IPv6 Intermediation (shim6)
Timing over IP Connection and Transfer of Clock (tictoc)
Transparent Interconnection of Lots of Links (trill)