diff options
Diffstat (limited to 'node/Packet.hpp')
| -rw-r--r-- | node/Packet.hpp | 23 |
1 files changed, 1 insertions, 22 deletions
diff --git a/node/Packet.hpp b/node/Packet.hpp index f04e8742..5a30841a 100644 --- a/node/Packet.hpp +++ b/node/Packet.hpp @@ -655,32 +655,11 @@ public: /** * ECHO request (a.k.a. ping): - * <[1] 8-bit purpose of echo request> - * <[...] additional arbitrary payload> + * <[...] arbitrary payload> * * This generates OK with a copy of the transmitted payload. No ERROR * is generated. Response to ECHO requests is optional and ECHO may be * ignored if a node detects a possible flood. - * - * An empty payload is permitted. This is used in some versions for - * path checking and validation. If a payload is present it must - * follow the above format, though the recipient does not have to check - * this. It can simply echo it back. - * - * Echo purpose codes: - * 0x00 - User ECHO request - * 0x01 - Dead path detection - * - * Support for fragmented echo packets is optional and their use is not - * recommended. - * - * Dead path detection is performed by sending ECHOs with the same random - * payload to the best (or every) direct path and then once indirectly - * (such as via a root server). When an OK is received echoing back this - * test payload, all paths that have not yet received this OK are cancelled - * or re-tested. This can be done after a short period of inactivity to - * detect and automatically cancel dead paths without requiring any - * special logic (other than support for ECHO) at the remote end. */ VERB_ECHO = 8, |