Hi,
as per the Huawei please check the given switch for CDR improvement.
OptimizationSwitch(BSC6900,BSC6910): SRB_RESET_RL_SETUP_SWITCH
OptimizationSwitch(BSC6900,BSC6910): MC_RL_RESET_SWITCH
PROCESSSWITCH4(BSC6910,BSC6900): RB_SETUP_RL_REEST_SWITCH
PROCESSSWITCH4(BSC6910,BSC6900): RB_SETUP_ENHANCE_RL_REEST_SWITCH
OptimizationSwitch(BSC6900,BSC6910): ASU_RL_RESET_SWITCH
OptimizationSwitch(BSC6900,BSC6910): RB_RECFG_RL_REEST_SWITCH
PROCESSSWITCH4(BSC6910,BSC6900): RBRECFG_ENH_RL_REEST_SWITCH
ImprovementSwitch(BSC6900,BSC6910): NON_DCCC_RBRECFG_RL_REEST_SWITCH
PROCESSSWITCH4(BSC6910,BSC6900): TRB_RESET_RL_REEST_SWITCH
PROCESSSWITCH4(BSC6910,BSC6900): RB_REL_RL_REEST_SWITCH
PROCESSSWITCH4(BSC6910,BSC6900): PHY_RECFG_REEST_SWITCH
PROCESSSWITCH4(BSC6910,BSC6900): PHYCHRECFG_ENH_RL_REEST_SWITCH
OptimizationSwitch(BSC6900,BSC6910): CS_RL_SETUP_SWITCH
OptimizationSwitch(BSC6900,BSC6910): PS_RL_SETUP_SWITCH
OptimizationSwitch4(BSC6900,BSC6910): RB_RLREEST_AM_TRB_RLC_REEST_SWITCH
OptimizationSwitch4(BSC6900,BSC6910): RB_SETUP_UM_TRB_RLREEST_ADJUD_OPT_SWITCH