Thank you for your support. I returned to the original configuration using the 10 Gbps interfaces for reth0 and configured a new reth, reth4, that uses the 1 Gbps interfaces. I plan to rewrite the configuration file from scratch to use the reth4 interface where I use the reth0 interface now.
Model: srx1500
Junos: 15.1X49-D140.2
1> show chassis cluster interfaces
Control link status: Up
Control interfaces:
Index Interface Monitored-Status Internal-SA Security
0 em0 Up Disabled Disabled
Fabric link status: Up
Fabric interfaces:
Name Child-interface Status Security
(Physical/Monitored)
fab0 ge-0/0/12 Up / Up Disabled
fab0 ge-0/0/13 Up / Up Disabled
fab1 ge-7/0/12 Up / Up Disabled
fab1 ge-7/0/13 Up / Up Disabled
Redundant-ethernet Information:
Name Status Redundancy-group
reth0 Up 1
reth1 Up 1
reth2 Up 1
reth3 Up 1
reth4 Up 1
reth5 Down Not configured
reth6 Down Not configured
reth7 Down Not configured
reth8 Down Not configured
reth9 Down Not configured
reth10 Down Not configured
reth11 Down Not configured
reth12 Down Not configured
reth13 Down Not configured
reth14 Down Not configured
reth15 Down Not configured
reth16 Down Not configured
reth17 Down Not configured
reth18 Down Not configured
reth19 Down Not configured
reth20 Down Not configured
reth21 Down Not configured
reth22 Down Not configured
reth23 Down Not configured
reth24 Down Not configured
reth25 Down Not configured
reth26 Down Not configured
reth27 Down Not configured
reth28 Down Not configured
reth29 Down Not configured
reth30 Down Not configured
reth31 Down Not configured
reth32 Down Not configured
reth33 Down Not configured
reth34 Down Not configured
reth35 Down Not configured
reth36 Down Not configured
reth37 Down Not configured
reth38 Down Not configured
reth39 Down Not configured
reth40 Down Not configured
reth41 Down Not configured
reth42 Down Not configured
reth43 Down Not configured
reth44 Down Not configured
reth45 Down Not configured
reth46 Down Not configured
reth47 Down Not configured
reth48 Down Not configured
reth49 Down Not configured
reth50 Down Not configured
reth51 Down Not configured
reth52 Down Not configured
reth53 Down Not configured
reth54 Down Not configured
reth55 Down Not configured
reth56 Down Not configured
reth57 Down Not configured
reth58 Down Not configured
reth59 Down Not configured
reth60 Down Not configured
reth61 Down Not configured
reth62 Down Not configured
reth63 Down Not configured
reth64 Down Not configured
reth65 Down Not configured
reth66 Down Not configured
reth67 Down Not configured
reth68 Down Not configured
reth69 Down Not configured
reth70 Down Not configured
reth71 Down Not configured
reth72 Down Not configured
reth73 Down Not configured
reth74 Down Not configured
reth75 Down Not configured
reth76 Down Not configured
reth77 Down Not configured
reth78 Down Not configured
reth79 Down Not configured
reth80 Down Not configured
reth81 Down Not configured
reth82 Down Not configured
reth83 Down Not configured
reth84 Down Not configured
reth85 Down Not configured
reth86 Down Not configured
reth87 Down Not configured
reth88 Down Not configured
reth89 Down Not configured
reth90 Down Not configured
reth91 Down Not configured
reth92 Down Not configured
reth93 Down Not configured
reth94 Down Not configured
reth95 Down Not configured
reth96 Down Not configured
reth97 Down Not configured
reth98 Down Not configured
reth99 Down Not configured
reth100 Down Not configured
reth101 Down Not configured
reth102 Down Not configured
reth103 Down Not configured
reth104 Down Not configured
reth105 Down Not configured
reth106 Down Not configured
reth107 Down Not configured
reth108 Down Not configured
reth109 Down Not configured
reth110 Down Not configured
reth111 Down Not configured
reth112 Down Not configured
reth113 Down Not configured
reth114 Down Not configured
reth115 Down Not configured
reth116 Down Not configured
reth117 Down Not configured
reth118 Down Not configured
reth119 Down Not configured
reth120 Down Not configured
reth121 Down Not configured
reth122 Down Not configured
reth123 Down Not configured
reth124 Down Not configured
reth125 Down Not configured
reth126 Down Not configured
reth127 Down Not configured
Redundant-pseudo-interface Information:
Name Status Redundancy-group
lo0 Up 0
Interface Monitoring:
Interface Weight Status Redundancy-group
xe-7/0/16 255 Up 1
xe-0/0/16 255 Up 1
ge-7/0/14 255 Down 1
ge-0/0/14 255 Up 1
ge-7/0/9 255 Up 1
ge-0/0/9 255 Up 1
ge-7/0/10 255 Up 1
ge-0/0/10 255 Up 1
xe-7/0/18 128 Up 1
xe-0/0/18 128 Up 1
xe-0/0/17 128 Up 1
xe-7/0/17 128 Up 1
{primary:node0}
1> show configuration |display set |match "redundant-parent reth"
set interfaces ge-0/0/9 gigether-options redundant-parent reth3
set interfaces ge-0/0/10 gigether-options redundant-parent reth2
set interfaces ge-0/0/14 gigether-options redundant-parent reth4
set interfaces xe-0/0/16 gigether-options redundant-parent reth0
set interfaces xe-0/0/17 gigether-options redundant-parent reth1
set interfaces xe-0/0/18 gigether-options redundant-parent reth1
set interfaces ge-7/0/9 gigether-options redundant-parent reth3
set interfaces ge-7/0/10 gigether-options redundant-parent reth2
set interfaces ge-7/0/14 gigether-options redundant-parent reth4
set interfaces xe-7/0/16 gigether-options redundant-parent reth0
set interfaces xe-7/0/17 gigether-options redundant-parent reth1
set interfaces xe-7/0/18 gigether-options redundant-parent reth1