The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
To display information about the switch hardware and the hardware modules installed in the switch chassis, use the show hardware command.
|
Enter the show hardware command. Example: |
To display information about the field replaceable units (FRUs), including product IDs, serial numbers, and version IDs, use the show inventory command.
|
Enter the show inventory command. Example: |
You can display the backplane information, including the serial number for the switch, by using the show sprom backplane command.
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Enter the show sprom backplane command. Example: |
You can display all of the environment-related switch information by using the show environment command.
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Enter the show environment command. Example: |
Each module has temperature sensors with two thresholds:
Minor temperature threshold—When a minor threshold is exceeded, a minor alarm occurs and the following actions occur for all four sensors:
Displays system messages
Sends Call Home alerts (if configured)
Sends SNMP notifications (if configured)
Major temperature threshold—When a major threshold is exceeded, a major alarm occurs and the following actions occur:
For sensors 1, 3, and 4 (outlet and onboard sensors), the following actions occur:
Displays system messages.
Sends Call Home alerts (if configured). For more information, refer Associating an Alert Group with a Destination Profile .
Sends SNMP notifications (if configured). For more information, refer Enabling SNMP Notifications.
For sensor 2 (intake sensor), the following actions occur:
If the threshold is exceeded in a switching module, only that module is shut down.
If the threshold is exceeded in an active supervisor module with HA-standby or standby present, only that supervisor module is shut down and the standby supervisor module takes over.
If you do not have a standby supervisor module in your switch, you have up to 2 minutes to decrease the temperature. During this interval, the software monitors the temperature every 5 seconds and continuously sends system messages as configured.
 Tip |
We recommend that you install dual supervisor modules. If you are using a switch without dual supervisor modules, we recommend that you immediately replace the fan module if just one fan is not working. |
 Note |
A threshold value of -127 indicates that no thresholds are configured or applicable. |
You can display temperature readings for module temperature sensors by using the show environment temperature command.
|
Enter the show environment temperature command. Example: |
At any time, you can connect to any module by using the attach module command. Once you are at the module prompt, you can obtain further details about the module by using module-specific commands in EXEC mode.
| Step 1 |
Enter the attach module slot_number command. Example:Provides direct access to the I/O module in slot 1 (in this example, the supervisor module is in slot 2). |
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| Step 2 |
dir bootflash Example:
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To save the new configuration along with the non-default VDC configuration to nonvolatile storage, use the copy running-config startup-config vdc-all command from EXEC mode. Once you enter these commands, the running and the startup copies of the configuration are identical.
The following table lists various scenarios when module configurations are preserved or lost.
|
Scenario |
Consequence |
|---|---|
|
A particular switching module is removed and you used the copy running-config startup-config vdc-all command again. |
The configured module information is lost. |
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A particular switching module is removed and the same switching module is replaced before you enter the copy running-config startup-config vdc-all command again. |
The configured module information is preserved. |
|
A particular switching module is removed and replaced with the same type switching module, and you entered the reload module slot_number command. |
The configured module information is preserved. |
|
A particular switching module is reloaded when you enter the reload module slot_number command. |
The configured module information is preserved. |
To display the power usage information for the entire switch, use the show environment power command. This command shows the power usage for many of the modules installed in the switch. For the older modules that do not have the capability to output this information, the output is shown as N/A.
Note |
Power usage is reserved for both supervisor modules regardless of whether one or both supervisor modules are present. |
|
Enter the show environment power command. |
You can reset a module by using the reload module command and specifying the module by its slot number in the chassis.
 Caution |
Reloading a module disrupts traffic through the module. |
| Step 1 |
Enter the configure terminal command to enter the configuration terminal mode. Example: |
| Step 2 |
Specify the slot number for the module that you are resetting by entering the reload module slot_number command. Example: |
To reboot or reload the switch, use the reload command without any options. When you use this command, you reboot the switch.
Note |
If you need to use the reload command, be sure to save the running configuration by using the copy running-config startup-config vdc-all command beforehand. |
| Step 1 |
Start the configuration mode by entering the configure terminal command. Example: |
| Step 2 |
Save the running configuration by entering the copy running-config startup-config vdc-all command. Example: |
| Step 3 |
Reload the switch by entering the reload command. Example: |
Supervisor 2 Enhanced (N77-SUP2E)
Supervisor 3 Enhanced (N77-SUP3E)
Note |
For the Supervisor 2 Enhanced (N77-SUP2E) supervisor module in the Cisco Nexus 7702 chassis, the minimum EPLD version supported is 1.4. For more information about EPLD upgrades, please refer Cisco Nexus 7000 Series FPGA/EPLD Upgrade Release Notes, Release 7.2 |
Note |
You can use only one type of supervisor module in a switch. |
The supervisor module is automatically powered up and started with the switch.
The following F3-Series modules are supported by the Cisco Nexus 7700 Series switches:
F3-Series Enhanced 48-port 1-/10-G Ethernet with XL (N77-F348XP-23)
F3-Series Enhanced 24-port 40-G Ethernet with XL (N77-F324FQ-25)
F3-Series Enhanced 12-port 100-G Ethernet with XL (N77-F312CK-26)
The following F4-Series module is supported by the Cisco Nexus 7700 Series switches:
F4-Series 30-port 100-G Ethernet (N77-F430CQ-36)
The following M3 Series modules are supported by the Cisco Nexus 7700 Series switches:
M3-Series 48-port 1-/10-G Ethernet (N77-M348XP-23L)
M3-Series 24-port 40-G Ethernet (N77-M324FQ-25L)
M3-Series 12-port 100-G Ethernet (N77-M312CQ-26L)
You can troubleshoot bootup problems for an I/O module by accessing the module through its console port. This action establishes a console mode that you must exit in order to use other Cisco NX-OS commands.
To attach to the console port for an I/O module, use the attach console module command to specify the module you need to work with.
Note |
To exit the console mode, enter the ~ , command. |
|
Attach to the console port for the I/O module by entering the attach console module slot_number command. Example: |
You can display information about the modules installed in the switch chassis by using the show module command. This information includes module type, bootup status, MAC addresses, serial numbers, software versions, and hardware versions. You can use this command in the following ways to display information about all of the installed module or specific modules:
For information on all modules, use the show module command.
For information on a specific supervisor or I/O module, use the show module slot_number command to specify a slot number.
For a description of the module status indicated by one of the above show module commands, see the following table.
| I/O Module State | Description |
|---|---|
|
powered up |
The hardware has electrical power. When the hardware is powered up, the software begins booting. |
|
testing |
The module has established connection with the supervisor and the module is performing bootup diagnostics. |
|
initializing |
The diagnostics have completed successfully and the configuration is being downloaded. |
|
failure |
The switch detects a module failure upon initialization and automatically attempts to power-cycle the module three times. After the third attempt, the module powers down. |
|
ok |
The switch is ready to be configured. |
|
power-denied |
The switch detects insufficient power for an I/O module to power up. |
|
active |
This module is the active supervisor module and the switch is ready to be configured. |
|
Use the show module [slot_number] command in one of the following ways:
Display information for all or specific modules. |
switch# show module
Mod Ports Module-Type Model Status
--- ----- ----------------------------------- ------------------ ----------
1 30 100 Gbps Ethernet Module N77-F430CQ-36 ok
2 0 Supervisor Module-3 N77-SUP3E active *
Mod Sw Hw
--- --------------- ------
1 8.3(0)SK(0.47) 0.203
2 8.3(0)SK(0.47) 0.909
Mod MAC-Address(es) Serial-Num
--- -------------------------------------- ----------
1 00-27-90-a1-ab-50 to 00-27-90-a1-ab-b3 JAE214303LW
2 00-3c-10-17-55-ec to 00-3c-10-17-55-ff JAE2150086E
Mod Online Diag Status
--- ------------------
1 Pass
2 Pass
* this terminal session
switch# show module 1
Mod Ports Module-Type Model Status
--- ----- --------------------------------- ---------------- ------
1 30 100 Gbps Ethernet Module N77-F430CQ-36 ok
Mod Sw Hw
--- -------------- ------
1 8.3(0)SK(0.47) 0.203
Mod MAC-Address(es) Serial-Num
--- -------------------------------------- ----------
1 00-27-90-a1-ab-50 to 00-27-90-a1-ab-b3 JAE214303LW
Mod Online Diag Status
--- ------------------
1 Pass
Chassis Ejector Support: Enabled
Ejector Status:
Left ejector CLOSE, Right ejector CLOSE, Module HW does support
ejector based shutdown, Ejector policy enabled.
switch#
You can clear the running configuration for an I/O slot that is not functioning by using the purge module command in EXEC mode.
Note |
This command does not work on supervisor slots nor on any I/O slot that currently has a powered-up module. |
Verify that either the I/O slot is empty or the I/O module installed in the slot is powered down.
|
Clear the running configuration by using the purge module slot_number running-config command. Example: |
You can configure one of the following power modes to either use the combined power provided by the installed power supply units (no power redundancy) or to provide power redundancy when there is a power loss:
This mode allocates the combined power of all power supplies to active power for switch operations. This mode does not allocate reserve power for power redundancy in case of power outages or power supply failures.
This mode allocates one power supply as a reserve power supply in case an available power supply fails. The remaining power supplies are allocated for available power. The reserve power supply must be at least as powerful as each power supply used for the available power.
This mode allocates half of the power to available power and the other half to reserve power. You must use a different power source for the active and reserve power sources so that if the power source used for active power fails, the other power source used for the reserve power can provide power for the switch.
This mode provides both power-supply (n+1) and input-source (grid) redundancies. As happens with the input-source redundancy mode, this mode allocates half of the power supplies to provide available power and the other half of the power supplies to provide the reserve power. One of the reserve power supplies can alternatively be used to provide power if a power supply supplying the available power fails.
The amounts of available and reserve power depend on the power redundancy mode that you specify and the number of power supplies installed in the switch. For each redundancy mode, consider the following:
The available power equals the combined output of all installed power supplies. There is no reserve power. You activate this mode by using the power redundancy-mode combined command.
The power supply that outputs the most power provides the reserve power so that it can take over for any other power supply that fails, and all of the other installed power supplies provide the available power. You activate this power mode by using the power redundancy-mode ps-redundant command.
The available power is provided by one power source and the reserve power is provided by the other power source. If the power source providing the available power fails, the switch uses the reserve power source to provide its required power. You activate this power mode by using the power redundancy-mode insrc_redundant command.
Full redundancy provides both power-supply redundancy and input-source redundancy. For power-supply redundancy, the power supply with the most output provides reserve power and the other power supplies provide the available power. For input-source redundancy, the available power is provided by one power source and the reserve power is provided by another power source You activate this power mode by using the power redundancy-mode redundant command.
You can configure the power supply mode by using the power redundancy-mode command.
Note |
To display the current power supply configuration, use the show environment power command. |
| Step 1 |
Start the configuration mode by entering the configure terminal command. Example: |
| Step 2 |
Specify one of the following power modes by entering the power redundancy-mode mode command:
Example: |
The maximum power available for operations depends on the input power from your power source, the number and output capabilities of your power supplies, and the power redundancy mode that you use. The following table lists the amount of power available for 3-kW AC power supplies depending on power inputs, numbers of power supplies, and the mode used.
|
Power Inputs |
Power Supplies |
Combined Mode |
Power Supply Redundancy Mode |
Input Source Redundancy Mode |
Full Redundancy Mode |
|---|---|---|---|---|---|
|
1 input (220 V) |
1 |
3000 W |
— |
— |
— |
|
2 |
6000 W |
3000 W |
3000 W |
3000 W |
|
|
1 input (110 V) |
1 |
1450 W |
— |
— |
— |
|
2 |
2900 W |
1450 W |
1450 W |
1450 W |
The maximum power available for operations depends on the input power from your power source, the number and output capabilities of your power supplies, and the power redundancy mode that you use. The following table lists the amount of power available for 3-kW DC power supplies depending on power inputs, numbers of power supplies, and the mode used.
|
Power Inputs |
Power Supplies |
Combined Mode |
Power Supply Redundancy Mode |
Input Source Redundancy Mode |
Full Redundancy Mode |
|---|---|---|---|---|---|
|
1 input |
1 |
3000 W |
— |
— |
— |
|
2 |
6000 W |
3000 W |
3000 W |
3000 W |
The maximum power available for operations depends on the input power from your power source, the number and output capabilities of your power supplies, and the power redundancy mode that you use. The following table lists the amount of power available for 3.5-kW HVAC/HVDC power supplies depending on AC power inputs, number of power supplies, and the mode used.
|
Power Inputs |
Power Supplies |
Combined Mode |
Power Supply Redundancy Mode |
Input Source Redundancy Mode |
Full Redundancy Mode |
|---|---|---|---|---|---|
|
1 input (277 V) |
1 |
3500 W |
— |
— |
— |
|
2 |
7000 W |
3500 W |
3500 W |
3500 W |
|
|
1 input (220/230 V) |
1 |
3500 W |
— |
— |
— |
|
2 |
7000 W |
3500 W |
3500 W |
3500 W |
|
|
1 input (210 V) |
1 |
3100 W |
— |
— |
— |
|
2 |
6200 W |
3100 W |
3100 W |
3100 W |
|
|
1 input (110 V) |
1 |
1500 W |
— |
— |
— |
|
2 |
3000 W |
1500 W |
1500 W |
1500 W |
Note |
A combination of 3-kW AC and 3.5-kW HVAC/HVDC power supplies can be used. |
The maximum power available for operations depends on the input power from your power source, the number and output capabilities of your power supplies, and the power redundancy mode that you use. The following table lists the amount of power available for 3.5-kW HVAC/HVDC power supplies depending on DC power inputs, number of power supplies, and the mode used.
|
Power Inputs |
Power Supplies |
Combined Mode |
Power Supply Redundancy Mode |
Input Source Redundancy Mode |
Full Redundancy Mode |
|---|---|---|---|---|---|
|
1 input (380 V) |
1 |
3,500 W |
— |
— |
— |
|
2 |
7,000 W |
3,500 W |
3,500 W |
3,500 W |
|
|
1 input (220/240 V) |
1 |
3,500 W |
— |
— |
— |
|
2 |
7,000 W |
3,500 W |
3,500 W |
3,500 W |
|
|
1 input (210 V) |
1 |
3,100 W |
— |
— |
— |
|
2 |
6,200 W |
3,100 W |
3,100 W |
3,100 W |
Note |
A combination of 3-kW DC and 3.5-kW HVAC/HVDC power supplies can be used. |
Note |
During normal switch operations, all 3 fan trays in a switch should be of the same type. |
The Cisco Nexus 7702 switch has one fan tray with three variable speed fans. The fan tray can be removed and replaced while the switch is operating without presenting an electrical hazard or damage to the switch. The switch can operate without the fan tray for up to two minutes. If a fan tray is not installed within that time, the switch will automatically shutdown.
Note |
When one of the three fans in the fan tray fails, the remaining two fans run at a higher speed to compensate for the failed fan and keep the switch operating. |
Caution |
If one or more fans fail within a fan tray, the Fan Status LED turns red. A fan failure could lead to temperature alarms if not corrected immediately. |
The fan status is continuously monitored by the software. In case of a fan failure, the following actions occur:
System messages are displayed.
Call Home alerts are sent (if configured). For more information, refer Associating an Alert Group with a Destination Profile .
SNMP notifications are sent (if configured). For more information, refer Enabling SNMP Notifications.
.To display the status for the , use the show environment fan command as shown in the following example.
|
Enter the show environment fan command. Example: |
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