Re: EX4200-01 Etherchannel Issue

How is this response helpful? Everything you mentioned, including LACP primary/backup, is correctly configured in the config the OP attached.

chassis {
    aggregated-devices {
        ethernet {
            device-count 2;
        }
    }
}
interfaces {
    ge-0/1/0 {
        description "AUGERE IC VIA Satcom";
        enable;
        ether-options {
            auto-negotiation;
            link-mode full-duplex;
            speed {
                1g;
            }
            802.3ad {
                ae0;
                primary;
            }
        }
    }
    ge-0/1/1 {
        description "Interconnect with AUGERE - Through MF";
        ether-options {
            link-mode full-duplex;
            speed {
                1g;
            }
            802.3ad {
                ae0;
                backup;
            }
        }
    }
    ae0 {
        description "Aggregate Interface with AUGRERE";
        mtu 9000;
        aggregated-ether-options {
            no-flow-control;
            link-protection;
            minimum-links 1;
        }
        unit 0 {
            family ethernet-switching {
                port-mode trunk;
                vlan {
                    members [ x y z ];
                }
            }
        }
    }
}