A CLI command parameter has been introduced in the PCC for configuring the PCEP session to the standby backup PCE peer. A preference parameter value is used to specify the primary and the standby backup PCE peer in the config>router>pcep>pcc context:
peer ip-address preference preference
A maximum of two PCE peers are supported. The PCE peer that is not in overload is always selected by the PCC as the active PCE. However, if neither of the PCEs are signaling the overload state, the PCE with the higher numerical preference value is selected. In case of a tie, the PCE with the lower IP address is selected.
In order to change the value of the preference parameter, the peer must be deleted and recreated.