Commit f87abf762b for frr

commit f87abf762b40e6d38e64d185c3edab97c12fa279
Author: Minghan Chan <mhchann082@gmail.com>
Date:   Fri Nov 6 08:24:17 2026 +0800

    doc: describe sbfd reflector discriminator lists, ranges and limits

    Say what the discriminator argument accepts, that one bad value
    rejects the whole command, and how the no forms remove reflectors.

    Signed-off-by: Minghan Chan <mhchann082@gmail.com>

diff --git a/doc/user/sbfd.rst b/doc/user/sbfd.rst
index 61565515e2..b3cba6e30b 100644
--- a/doc/user/sbfd.rst
+++ b/doc/user/sbfd.rst
@@ -111,6 +111,15 @@ This packet will be routed in the topo according to the dst ip 200::A, it will g

 .. clicmd:: sbfd reflector source-address 200::D discriminator 456

+   The discriminator can be one value, a range such as ``456-460``, or a list
+   of both, such as ``discriminator 456 500-510``. Values go from 1 to
+   4294967295, the first value of a range must be lower than the last, and one
+   command can add at most 65536 discriminators. If any of them is not valid,
+   the command is rejected and adds no reflector.
+
+   ``no sbfd reflector START [END]`` removes the reflector START, or every
+   reflector from START to END. ``no sbfd reflector`` removes all reflectors.
+

 .. _sbfd-echo: