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Bolt #7: Update introduction text

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'three gossip messages' should refer to node and channel discovery
messages, not just channel discovery messages.
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John Newbery 2020-03-24 10:02:02 -04:00 committed by Christian Decker
parent 3a8911dc7a
commit f49fb440ee
1 changed files with 11 additions and 9 deletions
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07-routing-gossip.md
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@ -7,16 +7,18 @@ Node and channel discovery serve two different purposes:
- Channel discovery allows the creation and maintenance of a local view of the network's topology, so that a node can discover routes to desired destinations.
- Node discovery allows nodes to broadcast their ID, host, and port, so that other nodes can open connections and establish payment channels with them.
To support channel discovery, three *gossip messages* are supported. Peers in the network exchange
`channel_announcement` messages containing information regarding new
channels between the two nodes. They can also exchange `channel_update`
messages, which update information about a channel. There can only be
one valid `channel_announcement` for any channel, but at least two
`channel_update` messages are expected.
To support channel and node discovery, three *gossip messages* are supported:
To support node discovery, peers exchange `node_announcement`
messages, which supply additional information about the nodes. There may be
multiple `node_announcement` messages, in order to update the node information.
- For channel discovery, peers in the network exchange
`channel_announcement` messages containing information regarding new
channels between the two nodes. They can also exchange `channel_update`
messages, which update information about a channel. There can only be
one valid `channel_announcement` for any channel, but at least two
`channel_update` messages are expected.
- For node discovery, peers exchange `node_announcement`
messages, which supply additional information about the nodes. There may be
multiple `node_announcement` messages, in order to update the node information.
# Table of Contents