that is not formally
supported, which led to
signal integrity issues
+
+ ``ETHTOOL_LINK_EXT_SUBSTATE_BSI_SERDES_REFERENCE_CLOCK_LOST`` The external clock signal for
+ SerDes is too weak or
+ unavailable.
+
+ ``ETHTOOL_LINK_EXT_SUBSTATE_BSI_SERDES_ALOS`` The received signal for
+ SerDes is too weak because
+ analog loss of signal.
================================================================= =============================
Cable issue substates: