package preamble

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View/edit binary Protocol Buffers messages

ComponentRange is the range of versions of one component's wire formats a binary supports.

Used in: Preamble

• string component = 1

  component names the part of the binary that owns the formats, such as "view", "fabric", "fabricx", or an application's component.

• uint32 min = 2

  min is the lowest version this binary uses on the wire.

• uint32 max = 3

  max is the highest.

Preamble is what a node tells a peer about itself when a stream or connection opens, after the transport has authenticated the peer. Fields are only ever added, never renumbered, retyped or removed, so every release can read the preamble of every other.

• string fsc_version = 1

  fsc_version is the FSC module version, as `node version` reports it.

• string vcs_revision = 2

  vcs_revision is the VCS revision the binary was built from.

• uint32 framing_epoch = 3

  framing_epoch is raised only when the framing of view packets on a stream changes. Two nodes of different epochs cannot exchange view packets and refuse each other.

• repeated ComponentRange ranges = 4

  ranges lists, per component, the versions of its wire formats this binary supports.