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Cannot login SPU ACU board through console MPU redirection

Publication Date:  2013-03-28 Views:  572 Downloads:  0
Issue Description
S9300 - V200R002C00SPC100; ACU - 
Customer is trying to connect from console MPU to console ACU through redirection. Unfortunately this is not possible
Alarm Information
<huawei>spu con slot 2
*              Slot 2 output to mainboard           *

Press Ctrl+D to quit

press Enter but nothing happen

press Ctrl+D
Info: Quit lpu output mode.
Handling Process
SPU]user-interface aux 0
[SPU-ui-aux0]authentication-mode password
[SPU-ui-aux0]set authentication password cipher huawei
[SPU-ui-aux0]user privilege level 15

<Quidway>spu connect slot 2                                                     
*              Slot  2 output to mainboard           *                         
Press Ctrl+D to quit                                                           
Root Cause
I've checked the configuration from ACU, and saw that authentication was not configured on AUX line.