We look from the client's perspective. When it sends data to the server, we say it's outbound traffic. When the server sends data to the client, it's inbound traffic:
- https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/blob/7db2568448fed6d883b33db11e3a497c69f1748f/proxy/lib/snowflake.go#L414
- https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/blob/7db2568448fed6d883b33db11e3a497c69f1748f/proxy/lib/webrtcconn.go#L78
But in the log messages they are mixed up, which results in "up" traffic being usually thicker than "down":
