The Problem

I have recently been adding EX3400 switches, with wired assurance, into the Mist portal. On many of them, I was getting this error when trying to commit certain changes, such as enabling Dynamic Port Configuration:

error commit-confirm: [edit] apply-groups mist-dpc: mgd: Configuration group ‘mist-dpc’ is not defined

I also found that dynamic port profiles were not being applied at all.

 

Findings

I found that when these switches were originally adopted into Mist, there were a few things that didn’t happen:

  1. Group configuration didn’t apply
  2. The Mist scripts weren’t copied over

You can confirm this by logging on to the CLI of the switch, and running show configuration groups. Under this hierarchy, there should be a mist-dpc and mist-script hierarchy.

Additionally, if you run file list /var/db/scripts/op and file list /var/db/scripts/event, you will find that these directories are empty.

 

Workaround

I haven’t found a ‘correct’ solution for this yet, only a workaround. I was able to connect to a switch that was working, and copy the config and scripts over to the other switches.

If you don’t have a working switch available, you can use the config and files below.

WARNING: By the time you read this, these files may be out of date. If you’re experiencing the same problem, I recommend trying to find a permanent solution.

 

Configuration

set groups mist-dpc event-options generate-event timer-every-one-minute time-interval 60
set groups mist-dpc event-options policy dynamic-port-detect events lldp_neighbor_up
set groups mist-dpc event-options policy dynamic-port-detect events snmp_trap_link_up
set groups mist-dpc event-options policy dynamic-port-detect events snmp_trap_link_down
set groups mist-dpc event-options policy dynamic-port-detect events ui_commit_completed
set groups mist-dpc event-options policy dynamic-port-detect events dot1xd_usr_authenticated
set groups mist-dpc event-options policy dynamic-port-detect events get-stats-every-three-minute
set groups mist-dpc event-options policy dynamic-port-detect then event-script mist_dynamic_port_usages.py
set groups mist-dpc event-options policy dynamic-port-commit events timer-every-one-minute
set groups mist-dpc event-options policy dynamic-port-commit then event-script mist_dynamic_port_commit.py


set groups mist-script system scripts op file mist_helper.py arguments cmd
set groups mist-script system scripts op file mist_helper.py checksum sha-256 fffed9f4c538dfee3f98e34302cd30dd2560bd65c9340ff5c3a14cc05f80ec49
set groups mist-script system scripts op file mist_vccmd.py checksum sha-256 b4012cfbaa9ed42b776fa96d016dd9d1036ebe1a5706ede49567db366d5f5e4b
set groups mist-script event-options generate-event get-stats-every-three-minute time-interval 180
set groups mist-script event-options generate-event monitor-diskspace-now time-interval 86400
set groups mist-script event-options generate-event get-perf-probe-stats time-interval 180
set groups mist-script event-options policy log-on-snmp-trap-link events snmp_trap_link_up
set groups mist-script event-options policy log-on-snmp-trap-link events snmp_trap_link_down
set groups mist-script event-options policy log-on-snmp-trap-link then event-script mist_event_dispatcher.py
set groups mist-script event-options policy backup-cfg-after-commit events ui_commit_completed
set groups mist-script event-options policy backup-cfg-after-commit then event-script mist_event_dispatcher.py
set groups mist-script event-options policy log-on-storm-ctrl-in-effect events l2ald_st_ctl_in_effect
set groups mist-script event-options policy log-on-storm-ctrl-in-effect then event-script mist_storm_control_event_logger.py
set groups mist-script event-options policy log-on-system-events events dot1xd_auth_session_deleted
set groups mist-script event-options policy log-on-system-events events dot1xd_rcvd_eaplogof_athntictd
set groups mist-script event-options policy log-on-system-events events dot1xd_usr_access_denied
set groups mist-script event-options policy log-on-system-events events dot1xd_usr_authenticated
set groups mist-script event-options policy log-on-system-events events dot1xd_usr_session_disconnected
set groups mist-script event-options policy log-on-system-events events eswd_stp_state_change_info
set groups mist-script event-options policy log-on-system-events events ui_commit_not_confirmed
set groups mist-script event-options policy log-on-system-events events chassisd_vchassis_member_update_notice
set groups mist-script event-options policy log-on-system-events events chassisd_vchassis_member_list_notice
set groups mist-script event-options policy log-on-system-events events chassisd_vchassis_member_op_notice
set groups mist-script event-options policy log-on-system-events events snmpd_trap_cold_start
set groups mist-script event-options policy log-on-system-events events l2cpd_receive_bpdu_block_enabled
set groups mist-script event-options policy log-on-system-events events chassisd_psu_error
set groups mist-script event-options policy log-on-system-events events chassisd_psu_fan_fail
set groups mist-script event-options policy log-on-system-events events chassisd_psu_input_bad
set groups mist-script event-options policy log-on-system-events events chassisd_psu_overload
set groups mist-script event-options policy log-on-system-events events chassisd_psu_temperature
set groups mist-script event-options policy log-on-system-events events chassisd_psu_voltage
set groups mist-script event-options policy log-on-system-events events jsrpd_ha_control_link_down
set groups mist-script event-options policy log-on-system-events events jsrpd_ha_control_link_up
set groups mist-script event-options policy log-on-system-events events jsrpd_ha_health_weight_low
set groups mist-script event-options policy log-on-system-events events jsrpd_ha_health_weight_recovery
set groups mist-script event-options policy log-on-system-events then event-script mist_event_dispatcher.py
set groups mist-script event-options policy monitor-diskspace-policy events monitor-diskspace-now
set groups mist-script event-options policy monitor-diskspace-policy then event-script mist_monitor_diskspace.py
set groups mist-script event-options policy get-stats-policy events get-stats-every-three-minute
set groups mist-script event-options policy get-stats-policy then event-script mist_event_dispatcher.py
set groups mist-script event-options event-script file mist_event_dispatcher.py python-script-user mist
set groups mist-script event-options event-script file mist_event_dispatcher.py checksum sha-256 982a24151d17173695304e221797c3abd44beb8336d13cf15609f48207dfeffc
set groups mist-script event-options event-script file mist_link_event_logger.py python-script-user mist
set groups mist-script event-options event-script file mist_link_event_logger.py checksum sha-256 0b4df402a20057452cc39f1e8ef9c484aad8fb76a1466564eccc23cd1836e004
set groups mist-script event-options event-script file mist_backup_cfg.py python-script-user mist
set groups mist-script event-options event-script file mist_backup_cfg.py checksum sha-256 2208c79bdbeca7000a860f8c0a6399e8f1d908583bc9cd193ef2ddb8a4cb7a2a
set groups mist-script event-options event-script file mist_storm_control_event_logger.py python-script-user mist
set groups mist-script event-options event-script file mist_storm_control_event_logger.py checksum sha-256 b29a60e7228408d8b8ac53047a324f725e09e9c2ba4b282654f03c3b7ddc882e
set groups mist-script event-options event-script file mist_link_event_capturer.py python-script-user mist
set groups mist-script event-options event-script file mist_link_event_capturer.py checksum sha-256 dd94bcab374a467cab5650053fe41134f5f617c32145849e480f5c142ab56ac5
set groups mist-script event-options event-script file mist_monitor_diskspace.py python-script-user mist
set groups mist-script event-options event-script file mist_monitor_diskspace.py checksum sha-256 f28019ed90f62be64791ec8a06af2b289e34baed49f191ce7f3cd328ffc09630
set groups mist-script event-options event-script file mist_dynamic_port_usages.py python-script-user mist
set groups mist-script event-options event-script file mist_dynamic_port_usages.py checksum sha-256 cd4556c1ffd13ad2a457ab801da0bced0b88745af620119ded480c3cda1fb94a
set groups mist-script event-options event-script file mist_dynamic_port_commit.py python-script-user mist
set groups mist-script event-options event-script file mist_dynamic_port_commit.py checksum sha-256 3c9ef50e2288e4bfa21a06a1a5241dd3aa8abb04fffd27e14fe5342df438dde2
set groups mist-script event-options event-script file mist_event_aggregator.py python-script-user mist
set groups mist-script event-options event-script file mist_event_aggregator.py checksum sha-256 eeb1573724bba2cd50efb9edffebd8a4f77944dc8de74d7a7f81f9cedef9331a
set groups mist-script event-options event-script file mist_collect_stats.py python-script-user mist
set groups mist-script event-options event-script file mist_collect_stats.py checksum sha-256 61253d515a80a2e664e28b3c4eac92dacc3aed16573822e160164ba8b382260f
set groups mist-script event-options event-script file mist_vcsetup_agent.py python-script-user mist
set groups mist-script event-options event-script file mist_vcsetup_agent.py checksum sha-256 f844ac7501828890372059b9b4993d169d4201d3190611337a0eb6abed7b861d

 

Scripts

Download the Mist Scripts here. Note that the checksums in the config above refer to these scripts. Newer config won’t match older scripts.

The mist_helper.py and mist_vccmd.py need to be in the /var/db/scripts/op directory.

The other 11 scripts belong in the /var/db/scripts/event directory.

 

Permissions

Next, make the mist user the owner of these scripts:

start shell user root
Password:

[email protected]:RE:1% cd /var/db/scripts/event/
[email protected]:RE:1% chown mist mist_*
[email protected]:RE:1% ls -al
total 216
drwxrws--x 2 root wheel 512 Apr 29 12:23 .
drwxrws--x 10 root wheel 512 Apr 23 13:00 ..
-rw-r--r-- 1 mist wheel 11382 Apr 29 11:13 .dynamic_port_usages.json
-rw-r--r-- 1 mist wheel 5846 Apr 29 12:19 mist_backup_cfg.py
-rw-r--r-- 1 mist wheel 2157 Apr 29 12:19 mist_collect_stats.py
-rw-r--r-- 1 mist wheel 1972 Apr 29 12:20 mist_dynamic_port_commit.py
-rw-r--r-- 1 mist wheel 23632 Apr 29 12:20 mist_dynamic_port_usages.py
-rw-r--r-- 1 mist wheel 1685 Apr 29 12:22 mist_event_aggregator.py
-rw-r--r-- 1 mist wheel 2534 Apr 29 12:22 mist_event_dispatcher.py
-rw-r--r-- 1 mist wheel 14518 Apr 29 12:23 mist_link_event_capturer.py
-rw-r--r-- 1 mist wheel 764 Apr 29 12:23 mist_link_event_logger.py
-rw-r--r-- 1 mist wheel 10530 Apr 29 12:23 mist_monitor_diskspace.py
-rw-r--r-- 1 mist wheel 996 Apr 29 12:23 mist_storm_control_event_logger.py
-rw-r--r-- 1 mist wheel 879 Apr 29 12:23 mist_vcsetup_agent.py
lrwxr-xr-x 1 root wheel 77 Apr 27 02:37 pam_user_lock_deny_host.slax -> /packages/mnt/junos-runtime/var/db/scripts/event/pam_user_lock_deny_host.slax


[email protected]:RE:1% cd /var/db/scripts/op/
[email protected]:RE:1% chown mist mist_*

 

If you find a more permanent solution, please let me know. (I have heard that Mist are working on a permanent fix)

[email protected]