Bundle Protocol Version 6.0

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Bundle Protocol Version 6.0
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Outline

• Motivation
• Protocol
• Terminology
• Implementation architecture
• SDNV
• Addressing scheme
• Bundle format
• Primary block
• Generic Block
• Processing
• Bundle
• Administrative record
• Convergence layer services
• Security
• Comparison between Our implementation and version
  6

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Motivation

• Opportunistic connections between nodes
• Delay in packet delivery will be large
• Node density is sparse
• High bit error rates

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Terminology

• Bundle, Payload, Fragment
• Bundle node
• Bundle protocol agent
• Convergence layer adapters
• Application agent
• Bundle endpoint
• Forwarding, Registration, Delivery
• Deliverability/Abandonment
• Deletion, Discard
• Transmission
• Custody

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Implementation architecture
Source "DTN An Architectural Retrospective,"
Fall, K. Farrell, S., IEEE Journal on Selected
Areas in Communications, Volume 26, Issue 5,
pp 828-836, June 2008.
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SDNV Self Delimiting Numeric value
Example 0xCBA 1100 1011 1010 SDNV 1 00
11001 0 0111010 10011001 00111010

• Advantages
• Header format need not be changed when data type
  size increases
• Reduces header size (how?)

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Addressing and Registration

• Addressing
• Late binding
• URI scheme format - ltschemegtltscheme-specific-par
  tgt
• Examples
• ether//00-11-22-33-44-55
• dns//mobtorrent.ddns.comp.nus.edu.sg
• dtn//.nus.comp.nus.edu.sg
• dtnnone

• Registration
• Active and passive state
• Many-to-Many relationship

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Bundle Format Primary block
Source "DTN An Architectural Retrospective,"
Fall, K. Farrell, S., IEEE Journal on Selected
Areas in Communications, Volume 26, Issue 5,
pp 828-836, June 2008.
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Bundle Format Generic block
Source RFC 5050, Bundle protocol specification
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Processing - Bundle

• Bundle transmission
• Dispatching
• Forwarding
• Reception
• Local bundle delivery
• Fragmentation
• Reassembly
• Custody transfer
• Bundle deletion
• Bundle discard
• Polling

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Processing Administrative Record

• Status report

Source RFC 5050, Bundle protocol specification
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Processing Administrative Record

• Custody Signal

Source RFC 5050, Bundle protocol specification
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Convergence layer services

• Sending a bundle to minimum reception group
• Delivery of received bundle

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Security

• Dealt in Bundle Security protocol
  (draft-irtf-dtnrg-bundle-security-05)
• Includes three optional services
• Bundle authentication and integrity Hop-by-Hop
• Bundle authentication and integrity ltsecurity
  sourcegt to ltsecurity destinationgt
• Bundle confidentiality - ltsecurity sourcegt to
  ltsecurity destinationgt

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Comparison

• Bundle format
• Addressing scheme
• Acknowledgement scheme
• Status report
• custody signal
• Custody transfer
• Authentication and integrity

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THANK YOU