diff options
Diffstat (limited to 'node/Packet.hpp')
| -rw-r--r-- | node/Packet.hpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/node/Packet.hpp b/node/Packet.hpp index e0c702ce..6c1b2984 100644 --- a/node/Packet.hpp +++ b/node/Packet.hpp @@ -678,7 +678,14 @@ public: * <[...] arbitrary payload to be echoed back> * * This generates OK with a copy of the transmitted payload. No ERROR - * is generated. Response to ECHO requests is optional. + * is generated. Response to ECHO requests is optional and ECHO may be + * ignored if a node detects a possible flood. + * + * There is a de-facto standard for ECHO payload. No payload indicates an + * ECHO used for path confirmation. Otherwise the first byte contains + * flags, in which currently the only flag is 0x01 for a user-requested + * echo. For user-requested echoes the result may be reported back through + * the API. Otherwise the payload is for internal use. * * Support for fragmented echo packets is optional and their use is not * recommended. |