Network technologies and trends

Jul 31 2011   12:52PM GMT

What is CMP in Nexus 7000 Series Supervisor Module?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan

The Connectivity Management Processor (CMP) is separate processor on the Cisco Nexus 7000 Series supervisor module that is in addition to the main control processor (CP). The CMP provides a second network interface to the device for use even when the CP is not reachable. You can access the CMP to configure it and to perform system operations, such as taking over the CP console or restarting the CP. The CMP can reset all system components, including power supplies; it can also reset the host supervisor module to which it is attached, enabling a complete system restart.

The Connectivity Management Processor (CMP) available even if its supervisor module is in standby mode or the device is down because of issues such as over-temperature alarms. Each CMP gets power from an auxiliary power bus in the device that remains operational so long as you have at least one power cable attached to the device.

All these options are available through the Connectivity Management Processor (CMP) because it contains its own RAM, bootflash, and front panel management Ethernet port.

The Connectivity Management Processor (CMP) provides the following functions:

• Communicates with the supervisor module and I/O modules even if Cisco NX-OS device is not responding on the mgmt0 port.

• Maintains connectivity when you reboot the supervisor module.

• Monitors the supervisor module console port.

• Reboots the local supervisor module or the entire system.

• Takes over the supervisor module console port.

• Collects failure logs and watches bootup diagnostic messages.

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