ServiceFlags

Name

Description

NODE_NONE

No services advertised.

NODE_NETWORK

Node can serve the complete block chain.

NODE_BLOOM

Node can handle bloom‐filtered connections.

NODE_WITNESS

Node can serve blocks and transactions including witness data.

NODE_COMPACT_FILTERS

Node services basic block filter requests (BIP157/BIP158).

NODE_NETWORK_LIMITED

Node serves only the most recent 288 blocks (BIP159).

NODE_P2P_V2

Node supports the BIP324 v2 transport.

Name

Description

SeedsAssumedServiceFlags

Service flags we assume for addresses obtained from the DNS seeds and the fixed seeds, which don't come with service flags attached. BIP324 support can be safely assumed because the vast majority of listening nodes signals NODE_P2P_V2, and if the assumption is wrong for a given peer we simply reconnect using v1 transport.

SeedsServiceFlags

State independent service flags. If the return value is changed, contrib/seeds/makeseeds.py should be updated appropriately to filter for nodes with desired service flags (compatible with our new flags).