The libvirt created linux bridge has a configurable value "delay", the default value is "0", but it will not take effect. That's because kernel has a minimum value for linux bridge. Add some explanation about it in the document. Signed-off-by: Yalan Zhang <yalzhang(a)redhat.com&gt; --- docs/formatnetwork.rst | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/docs/formatnetwork.rst b/docs/formatnetwork.rst index 5335da5e11..aee70bbd0d 100644 --- a/docs/formatnetwork.rst +++ b/docs/formatnetwork.rst @@ -106,7 +106,8 @@ to the physical LAN (if at all). prefix "virbr" is recommended (and that is what is auto-generated), but not enforced. Attribute ``stp`` specifies if Spanning Tree Protocol is 'on' or 'off' (default is 'on'). Attribute ``delay`` sets the bridge's forward delay - value in seconds (default is 0). :since:`Since 0.3.0` + value in seconds (default is 0. As the kernel has a minimum delay, values + below it may not be counted). :since:`Since 0.3.0` The ``macTableManager`` attribute of the bridge element is used to tell libvirt how the bridge's MAC address table (used to determine the correct -- 2.43.0