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Cisco Bug: CSCuo83314 - Exclusive configuration lock shows user 'unknown'

Last Modified

Apr 05, 2019

Products (104)

  • Cisco IOS
  • Cisco Catalyst 2960S-24PD-L Switch
  • Cisco Catalyst 2960C-12PC-L Switch
  • Cisco Catalyst 3560CG-8TC-S Compact Switch
  • Cisco Catalyst 3560X-48U-S Switch
  • Cisco Catalyst 2960S-F48FPS-L Switch
  • Cisco Catalyst 2960C-8TC-S Switch
  • Cisco Catalyst 3560X-48T-E Switch
  • Cisco Catalyst 3560X-48P-S Switch
  • Cisco Catalyst 3750X-48PF-L Switch
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Known Affected Releases

12.2(33)SXI1 12.2(53)SG1 15.2(1)E

Description (partial)

Symptom:
SW#show config lock
Parser Configure Lock
---------------------
Owner PID                        : 3
User                             : unknown 
TTY                              : 1 
Type                             : EXCLUSIVE
State                            : LOCKED
Class                            : EXPOSED
Count                            : 1
Pending Requests                 : 0
User debug info                  : configure terminal
Session idle state               : TRUE
No of exec cmds getting executed : 0
No of exec cmds blocked          : 0
Config wait for show completion  : FALSE
Remote ip address                : 10.4.4.4
Lock active time (in Sec)        : 94
Lock Expiration timer (in Sec)   : 505

To find the one who has the configuration locked we can run "show users" and look for TTY 1 with remote IP 10.4.4.4

DS-Dist-1#sh users
    Line       User       Host(s)              Idle       Location
   1 vty 0     steve      idle                 00:00:28 10.186.4.4 
*  2 vty 1     jmpadmin   idle                 00:00:00 10.75.176.189

  Interface      User        Mode                     Idle     Peer Address

Conditions:
When using a AAA server configured on the switch and configuration mode exclusive auto enabled
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