Lenovo 8721 Product Manual page 13

The CMM has the following connectors:
USB connection. This connection can be used for insertion of a USB media key for tasks, such as
firmware updates.
10/100/1000 Mbps RJ45 Ethernet connection to connect to a management network. The CMM can
be managed via this Ethernet port.
Serial port (mini-USB) for local command-line interface (CLI) management. Use serial cable 90Y9338
for connectivity.
The CMM has the following light-emitting diodes (LEDs) that provide the following information:
Power-on LED
Activity LED
Error LED
Ethernet port link and port activity LEDs
The CMM also incorporates a reset button, which, when pressed, resets the CMM back to its default
condition. It has two functions, depending on how long the button is pressed:
When pressed for less than 5 seconds, the CMM restarts.
When pressed for more than 5 seconds (for example, 10 or 15 seconds), the CMM configuration is
reset to the manufacturing defaults, and then the CMM restarts.
The CMM supports a web-based graphical user interface (GUI) that provides a way to perform CMM
functions within a supported web browser. You can also perform management functions through the CMM
command-line interface (CLI). Both the web-based GUI and the CLI are accessible via the single RJ45
Ethernet connector on the CMM or from any other system that is connected to the same (management)
network.
The CMM has the following default static IPv4 address. By default, the CMM is configured to respond to
Dynamic Host Configuration Protocol (DHCP) first before using its static IPv4 address:
IP address: 192.168.70.100
Subnet: 255.255.255.0
User ID: USERID (all capital letters)
Password: PASSW0RD (all capital letters, with a zero instead of the letter O)
The CMM does not have a fixed static IPv6 IP address, by default. Initial access to the CMM in an IPv6
environment can be performed by either using the IPv4 IP address or the IPv6 link-local address. The IPv6
link-local address is automatically generated based on the Media Access Control (MAC) address of the
CMM.
The CMM is the key component enabling the integrated management network. Internally, the CMM has a
multiple port L2 1Gigabit Ethernet switch with dedicated links to all 14 node bays, all four switch bays, and
the second CMM, if installed. These connections are all point-to-point, ensuring dedicated bandwidth. The
1GbE links are full-duplex, fixed speed (not auto-negotiate) links. The 1 GbE management network is only
accessible by each node's management controller (IMMv2 or FSP), each switch module's management
interfaces, the CMM, and the Flex System Manager (FSM) management appliance. This design permits the
separation of the management network from the data network.
Flex System Enterprise Chassis 13