Bundle Protocol (BP)

The Bundle Protocol provides datagram transport over a high-delay or disrupted network using a variety of convergence layers (TCPCL, LTPCL, etc.) to give per-hop bundle transport between BP nodes.


BPv6 was standardized in RFC 5050. BPv7 is currently finalizing IETF standardization.

Protocol dependencies

  • TCPCL: The BPv6 had defined a corresponding TCPCL version 3 and BPv7 has defined a TCPCL version 4 to provide reliable transfer over low-delay (e.g. local or terresterial) data links.
  • LTPCL: The BPv6 has an experimental Licklider Transmission Protocol to provide reliable transfer over high-delay and lossy data links.
  • BPSec: The BP uses extension Block Integrity Block (BIB) and Block Confidentiality Block (BCB) to provide block-level security.


The BP dissector supports extension block dissecting using sub-dissector tables and payload dissection as an administrative record or based on destination EID service identification.

Preference Settings

The BPv7 dissector contains a heuristic dissector for block-type-specific data (BTSD) which currently uses CBOR as a fallback.

Example capture file

The unit test tree contains a BPv6 and BPv7 test file using separate CLs.



Display Filter

Show only BPv6 traffic with filter bundle and BPv7 traffic with filter bpv7.

External links