This specification defines the “les” ENR entry, which provides information about the les capability provided by a node. The presence of this entry in a node’s ENR indicates that the node is acting as a light client server. ENRs containing the “les” entry must also contain an eth entry, which provides information about the specific Ethereum blockchain served by LES.
Entry Format
entry-key = "les"
entry-value = [ vflux-version ]At this time, the “les” entry is a single element list containing the version number of the ‘vflux’ payment protocol.
In order to be compatible with future versions of this specifications, implementations
should ignore any additional list elements in entry-value.
Change Log
vflux-version (March 2021)
In March 2021, the les entry was updated to include the vflux version number.
Initial Version (October 2019)
The initial version of the les entry was an empty list with the sole purpose of signaling LES server support.