Transmission of IPv6 Packets over IEEE 802.15.4

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Transmission of IPv6 Packets over IEEE 802.15.4

• Wednesday, November 10, 2004
• 61st IETF, Washington D.C.
• Monroe East, 1530-1730
• Gabriel Montenegro - Sun

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Why this document?

• Basic requirement to run IPv6
• IPv6 over Foo
• Sub-IP section in node-requirements document
• Other Examples of IPv6 over Foo documents
• Ethernet RFC 2464
• PPP RFC 2472
• ATM - RFC 2492
• IEEE 1394 RFC 3146
• MAR 2005 Send to IESG as Proposed Standard

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Topics (1 of 2)

• IEEE 802.15.4 mode for IP
• Contention-based channel access (csma/ca) not
  Guaranteed Time Service (GTS)
• Frame format
• How to carry IPv6 packets within 15.4 packets
• Address generation
• EUI-64 addresses for IEEE 802.15.4
• Interface ID obtained via Addressing Architecture
  (RFC 3513)
• But also mapping to 16-bit addresses possible
• Autoconfiguration and link-local addresses
• Adaptation
• Small Data Payload for IEEE 802.15.4
• max is 102 (aMaxMACFrameSize)
• Need a shim or adaptation layer as min IPv6 MTU
  is 1280
• Other functions in this shim (Mesh, Header
  compression, etc)?

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Topics (2 of 2)

• Mesh
• Layer 2 (Sub-IP) mesh using, say, AODV lite
  (intra-PAN)
• Layer 3 (Supra-IP) mesh also possible (e.g., 15.4
  UWB) (inter-PAN)
• Header compression
• Not a luxury
• Integration of L2/L3 headers into one single
  compressed header
• Context build-up via configuration phase (not
  just typical negotiation)
• Header compression in a mesh scenario