mirror of https://github.com/zlatinb/muwire
26 lines
780 B
Markdown
26 lines
780 B
Markdown
# Upgrade to binary pongs
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### Motivation
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The current intra-peer protocol is JSON, which means messages need to be ascii-armored. This is not as optimal as a binary protocol, especially when sending large blobs like I2P destinations.
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### Upgrade path
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The pinging node sends pings with the `version` field set to 2.
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Upon receiving pings with version 2, the responding node will send a binary Pong.
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### Pong format:
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```
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byte 0: message type, fixed at 1 for "Pong"
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byte 1: version, fixed at 2
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bytes 2-18: UUID of the Pong
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byte 19: number of destinations contained in this Pong
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bytes 20-end: destinations
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```
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### Other benefits
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With the reduced size of Pong messages each Pong can carry more destinations. Also, the default maximum number of connections can be increased.
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