LND describegraph and getnetworkinfo RPC response

Question

The LND API documentation is here, but doesn't contain much information about what the responses to various calls mean. Can anyone explain what these responses are describing?

describegraph['edges']

I understand this to be channel data, but not sure exactly what it's describing.

• "time_lock_delta": 14,
• "min_htlc": "0",
• "fee_base_msat": "546000"
• "fee_rate_milli_msat": "10"

getnetworkinfo

• "avg_out_degree": 2.841628959276018
• "max_out_degree": 102

Answer 1

After looking into the code and running some tests I think I've found the answers:

• avg_out_degree is the average channels per node. In other words, total channels / total nodes = avg_out_degree. source
• max_out_degree is the maximum channels (sum of incoming and outgoing) found on a node in the network. This can be found by iterating through every node and summing their incoming/outgoing channels to find the maximum. source
• time_lock_delta: the required timelock delta for HTLCs forwarded over the channel. source
• min_htlc: the minimum value in millisatoshi required for incoming HTLCs on the channel. source
• fee_base_msat: the base fee charged regardless of the number of milli-satoshis sent. source
• fee_rate_milli_msat: the effective fee rate in milli-satoshis. The precision of this value goes up to 6 decimal places, so 1e-6. source