Users Guide

Troubleshooting Network Problems
The internal CMC trace log allows you to debug CMC alerts and networking. You can access the trace log using the CMC Web
interface or RACADM. See the gettracelog command section in the Chassis Management Controller for Dell PowerEdge
M1000e RACADM Command Line Reference Guide.
The trace log tracks the following information:
● DHCP — Traces packets sent to and received from a DHCP server.
● DDNS — Traces dynamic DNS update requests and responses.
● Configuration changes to the network interfaces.
The trace log may also contain CMC firmware-specific error codes that are related to the internal CMC firmware, not the
managed system’s operating system.
Resetting Administrator Password
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by
your warranty. Read and follow the safety instructions that came with the product.
To perform management actions, a user with Administrator privileges is required. The CMC software has a user account
password protection security feature that may be disabled if the administrator account password is forgotten. If the
administrator account password is forgotten, it can be recovered using the PASSWORD_RSET jumper on the CMC board.
The CMC board has a two-pin password reset connector as shown in the following figure. If a jumper is installed in the reset
connector, the default administrator account and password is enabled and set to the default values of username: root and
password: calvin. The administrator account is reset regardless if the account has been removed, or if the password was
changed.
NOTE: Make sure the CMC module is in a passive state before you begin.
To perform management actions, a user with Administrator privileges is required. If the administrator account password is
forgotten, it can be reset using the PASSWORD_RST jumper on the CMC board.
The PASSWORD_RST jumper uses a two-pin connector as shown in the following figure.
While the PASSWORD_RST jumper is installed, the default administrator account and password is enabled and set to the
following default values:
username: root
password: calvin
The administrator account is temporarily reset regardless if the administrator account was removed, or if the password was
changed.
NOTE:
When the PASSWORD_RST jumper is installed, a default serial console configuration is used (rather than
configuration property values), as follows:
cfgSerialBaudRate=115200
cfgSerialConsoleEnable=1
cfgSerialConsoleQuitKey=^\
cfgSerialConsoleIdleTimeout=0
cfgSerialConsoleNoAuth=0
cfgSerialConsoleCommand=""
cfgSerialConsoleColumns=0
1. Press the CMC release latch on the handle and move the handle away from the module front panel. Slide the CMC module
out of the enclosure.
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Troubleshooting and Recovery