From 8145a842736d1b7dc3f15c1b9024ffdb943824df Mon Sep 17 00:00:00 2001 From: "Matthieu Baerts (NGI0)" Date: Sat, 27 Jul 2024 12:10:35 +0200 Subject: [PATCH] man: mptcp: clarify the 'ID' parameter Explain the range (u8), and the special case for ID 0. The endpoints here are for all the connections, while the ID 0 is a special case per connection, depending on the source address used by the initial subflow. This ID 0 can then not be used for the global endpoints. Acked-by: Mat Martineau Signed-off-by: Matthieu Baerts (NGI0) Signed-off-by: Stephen Hemminger --- man/man8/ip-mptcp.8 | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/man/man8/ip-mptcp.8 b/man/man8/ip-mptcp.8 index 4c1161fe..e4a55f6c 100644 --- a/man/man8/ip-mptcp.8 +++ b/man/man8/ip-mptcp.8 @@ -148,7 +148,11 @@ expected behavior. .TP .IR ID -is a unique numeric identifier for the given endpoint +is a unique numeric identifier, between 0 and 255, for the given endpoint. It is +not possible to add endpoints with ID 0, because this special ID is reserved for +the initial subflow. For rules linked to the initial subflow, the path-manager +will look at endpoints matching the same address, and port if set, ignoring the +ID. .TP .BR signal -- 2.47.2