- attach fex
- beacon
- description (fex)
- feature-set fex
- fex
- fex associate
- hardware qos dscp-to-queue ingress module-type
- hardware queue-limit
- install feature-set fex
- logging fex
- port-channel min-links
- reload fex
- serial
- switchport mode fex-fabric
- show environment fex
- show fex
- show fex detail
- show fex transceiver
- show fex version
- show hardware qos dscp-to-queue ingress
- show port-channel summary
- show interface fex-fabric
- show logging level fex
- show interface fex-intf
- show interface transceiver fex-fabric
- show inventory fex
- show module fex
- show queuing interface
- show running-config fex
- show sprom fex
- show system reset-reason fex
- show tech fex all
- show tech-support fex
- show version fex
- type
FEX Commands
This chapter describes the Cisco NX-OS Fabric Extender (FEX) commands for the Cisco Nexus 7000 Series devices.
attach fex
To access the command-line interface (CLI) of a connected Fabric Extender (FEX) to run diagnostic commands, use the attach fex command.
Syntax Description
Fabric Extender chassis ID. The chassis ID range is from 101 to 199. |
Command Default
Command Modes
Command History
|
|
Usage Guidelines
Use the attach fex command to access the CLI on a connected Fabric Extender and perform diagnostic commands. We recommend that you use this command only by following the directions from Cisco technical support personnel.
Examples
This example shows how to access the CLI of a connected Fabric Extender to run diagnostic commands:
switch#
attach fex 101
Related Commands
|
|
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Displays all configured Fabric Extender chassis connected to the switch. |
beacon
To enable the beacon mode for an Fabric Extender (FEX) interface, use the beacon command. To disable the beacon mode for an interface, use the no form of this command.
Syntax Description
Command Default
Command Modes
Command History
|
|
Usage Guidelines
The beacon mode allows you to identify a physical port by flashing its link-state LED with a green light. To identify the physical port for an interface, you activate the beacon parameter for the interface.
Examples
This example shows how to enable the beacon mode for the Ethernet port 3/1:
switch(config)# interface ethernet 3/1
switch(config-if)# beacon
switch(config-if)#
Related Commands
|
|
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Creates a Fabric Extender and enters fabric extender configuration mode. |
|
Displays all configured Fabric Extender chassis connected to the switch. |
description (fex)
To specify a description for a Fabric Extender (FEX), use the description command. To revert to the default description, use the no form of this command.
Syntax Description
Command Default
Command Modes
Fabric extender configuration mode
Command History
|
|
Usage Guidelines
Examples
This example shows how to specify a description for a Fabric Extender:
switch#
configure terminal
switch(config)#
fex 101
switch(config-fex)#
description Rack16_FEX101
This example shows how to revert to the default description for a Fabric Extender:
switch#
configure terminal
switch(config)#
fex 101
switch(config-fex)#
no description
Related Commands
|
|
---|---|
Creates a Fabric Extender and enters fabric extender configuration mode. |
|
Displays all configured Fabric Extender chassis connected to the switch. |
feature-set fex
To enable the Fabric Extender (FEX) feature set, use the feature-set fex command.
Syntax Description
Defaults
Command Modes
Command History
|
|
---|---|
Usage Guidelines
Examples
This example shows how to enable a FEX feature set:
Related Commands
|
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---|---|
Displays all configured Fabric Extender chassis connected to the switch. |
fex
To create a Fabric Extender and enter fabric extender configuration mode, use the fex command. To delete the Fabric Extender configuration, use the no form of this command.
Syntax Description
Fabric Extender chassis ID. The chassis ID range is from 101 to 199. |
Command Default
Command Modes
Command History
|
|
Usage Guidelines
You must create and configure the Fabric Extender before you connect and associate it to an interface on the parent switch. Once you associate the Fabric Extender to the switch, the configuration that you created is transferred over to the Fabric Extender and applied.
Examples
This example shows how to enter fabric extender configuration mode:
switch#
configure terminal
switch(config)#
fex 101
This example shows how to delete the Fabric Extender configuration:
switch(config-fex)#
no fex 101
Related Commands
|
|
---|---|
Displays all configured Fabric Extender chassis connected to the switch. |
fex associate
To associate a Fabric Extender (FEX) to a fabric interface, use the fex associate command. To disassociate the Fabric Extender, use the no form of this command.
no fex associate [ chassis_id ]
Syntax Description
Fabric Extender chassis ID. The chassis ID range is from 101 to 199. |
Command Default
Command Modes
Command History
|
|
Usage Guidelines
Before you can associate an interface on the parent switch to the Fabric Extender, you must first make the interface into a fabric interface by entering the switchport mode fex-fabric command.
Examples
This example shows how to associate the Fabric Extender to an EtherChannel interface:
Related Commands
|
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---|---|
Displays all configured Fabric Extender chassis connected to the switch. |
|
hardware qos dscp-to-queue ingress module-type
To enable the DSCP2Q mapping for the Fabric Extender (FEX) host interface and FEX fabric interface, use the hardware qos dscp-to-queue ingress module-type command. To disable DSCP2Q mapping for the FEX host interface and FEX fabric interface use the no form of this command.
hardware qos dscp-to-queue ingress module-type [all | f-series | m-series]
no hardware qos dscp-to-queue ingress
Syntax Description
(Optional) Enables the DSCP based queuing for F Series modules. |
|
(Optional) Enables the DSCP based queuing for M Series modules. |
Command Default
Command Modes
Command History
|
|
Usage Guidelines
Examples
This example shows how to enable the DSCP2Q for all the FEX host interface:
This example shows how to enable the DSCP2Q for the F Series module:
This example shows how to disable the DSCP2Q for the FEX host interface:
Related Commands
hardware queue-limit
To configure the queue limit for a Fabric Extender (FEX), use the hardware queue-limit command. To disable the queue limit for a FEX, use the no form of this command.
hardware [fex-type] queue-limit [queue-limit]
no hardware [fex-type] queue-limit [queue-limit]
Syntax Description
Command Default
Command Modes
Command History
|
|
Usage Guidelines
Examples
This example shows how to configure the default queue limit value (66560 bytes) for a FEX:
This example shows how to configure the queue limit for a FEX:
This example shows how to enable a different queue limit on the rx and tx directions:
This example shows how to disable the queue limit:
Related Commands
|
|
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install feature-set fex
To install a Fabric Extender (FEX) feature set, use the install feature-set fex command.
Syntax Description
Defaults
Command Modes
Command History
|
|
---|---|
Usage Guidelines
Examples
This example shows how to install a FEX feature set:
Related Commands
|
|
---|---|
Displays all configured Fabric Extender chassis connected to the switch. |
logging fex
To set the logging alert level for Fabric Extender (FEX) events, use the logging fex command. To reset the logging level, use the no form of this command.
logging fex [ severity-level ]
no logging fex [ severity-level ]
Syntax Description
(Optional) Number of the desired severity level at which messages should be logged. Messages at or numerically lower than the specified level are logged. Severity levels are as follows: |
Command Default
Command Modes
Command History
|
|
Examples
This example shows how to set the logging alert level for Fabric Extender events:
switch(
config)#
logging fex 4
This example shows how to reset the logging level:
switch(
config)#
no logging fex
Related Commands
|
|
---|---|
Displays all configured Fabric Extender chassis connected to the switch. |
port-channel min-links
To configure the minimum number of links for a port channel, use the port-channel min-links command.To disable this feature, use the no form of this command.
port-channel min-links min-link number
no port-channel min-links min-link number
Syntax Description
Command Default
Command Modes
Command History
|
|
Usage Guidelines
The minimum number of links is configured on a fabric port channel to ensure the minimum bandwidth for the fabric port channel. When the minimum number of links criteria is not met, the host-facing interfaces of the FEX are brought down.
Examples
This example shows how to configure the minimum number of links for a port channel:
This example shows how to remove the minimum number of links:
Related Commands
|
|
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reload fex
To reload a Fabric Extender (FEX), use the reload fex command.
Syntax Description
Defaults
Command Modes
Command History
|
|
---|---|
Usage Guidelines
Examples
This example shows how to reload all FEX modules:
This example shows how to reload a specific FEX:
Related Commands
|
|
---|---|
Displays all configured Fabric Extender chassis connected to the switch. |
serial
To assign a serial number to a Fabric Extender (FEX), use the serial command. To remove the serial number, use the no form of this command.
Syntax Description
Serial number string for the Fabric Extender. The string is alphanumeric, case sensitive, and has a maximum length of 20 characters. |
Command Default
Command Modes
Fabric extender configuration mode
Command History
|
|
Usage Guidelines
The serial number string that you define with the serial command must match the serial number of the Fabric Extender. If you configure a serial number and then you use the fex associate command to associate the corresponding chassis ID to the switch, the association succeeds only if the Fabric Extender reports a matching serial number string.


Examples
This example shows how to specify a serial number for a Fabric Extender:
switch#
configure terminal
switch(config)#
fex 101
switch(config-fex)#
serial Rack16_FEX101
This example shows how to remove a serial number from a Fabric Extender:
switch#
configure terminal
switch(config)#
fex 101
switch(config-fex)#
no serial
Related Commands
switchport mode fex-fabric
To set the interface type to be an uplink port for a Fabric Extender (FEX), use the switchport mode fex-fabric command.
Syntax Description
Command Default
Command Modes
Command History
|
|
Examples
This example shows how to set an Ethernet interface to be an uplink port for a Fabric Extender:
This example shows how to set an EtherChannel interface to be an uplink port for a Fabric Extender:
Related Commands
|
|
---|---|
Associates a Fabric Extender to an Ethernet or EtherChannel interface. |
|
Displays all configured Fabric Extender chassis connected to the switch. |
show environment fex
To display the Fabric Extender (FEX) environment information, use the show environment fex command.
show environment fex { all | chassis_ID } [fan | power | temperature ]
Syntax Description
Fabric Extender chassis ID. The chassis ID range is from 101 to 199. |
|
(Optional) Displays power capacity and power distribution information. |
|
Command Default
Command Modes
Command History
|
|
Examples
This example shows how to display the environmental sensor status for a Fabric Extender:
switch#
show environment fex 101
Related Commands
|
|
---|---|
Displays all configured Fabric Extender chassis connected to the switch. |
show fex
To display information about a specific Fabric Extender or all attached chassis, use the show fex command.
show fex [ chassis_id [ detail ]]
Syntax Description
(Optional) Fabric Extender chassis ID. The chassis ID range is from 101 to 199. |
|
Command Default
Command Modes
Command History
|
|
Usage Guidelines
Examples
This example shows how to display information about all attached Fabric Extender chassis:
switch#
show fex
This example shows how to display information about a specific Fabric Extender chassis:
This example shows how to display the detailed information about all attached Fabric Extender chassis:
Related Commands
|
|
---|---|
Creates a Fabric Extender and enters fabric extender configuration mode. |
show fex detail
To display detailed information about a specific Fabric Extender (FEX) or all attached chassis, use the show fex detail command.
Syntax Description
Command Default
Command Modes
Command History
|
|
---|---|
Usage Guidelines
Examples
This example shows how to display detailed information about a specific or all attached Fabric Extender chassis:
Related Commands
|
|
---|---|
Creates a Fabric Extender and enters fabric extender configuration mode. |
|
Displays all configured Fabric Extender chassis connected to the switch. |
show fex transceiver
To display information about all the transceivers that connect a Fabric Extender (FEX) to a Cisco Nexus 7000 Series device, use the show fex transceiver command.
show fex chassis_id transceiver [ calibration | detail ]
Syntax Description
Command Default
Command Modes
Command History
|
|
Usage Guidelines
Examples
This example shows how to display information about the transceiver that connects a Fabric Extender to a Cisco Nexus 7000 Series device:
switch#
show fex 101 transceiver
Related Commands
|
|
---|---|
Creates a Fabric Extender and enters fabric extender configuration mode. |
show fex version
To display the software version information about a Fabric Extender (FEX), use the show fex version command.
Syntax Description
Fabric Extender chassis ID. The chassis ID range is from 101 to 199. |
Command Default
Command Modes
Command History
|
|
Usage Guidelines
Examples
This example shows how to display the software version of a Fabric Extender:
switch#
show fex 101 version
Related Commands
|
|
---|---|
Creates a Fabric Extender and enters fabric extender configuration mode. |
show hardware qos dscp-to-queue ingress
To display the status of DSCP2Q mapping for the Fabric Extender (FEX) host interface and FEX fabric interface, use the show hardware qos dscp-to-queue ingress command.
show hardware qos dscp-to-queue ingress
Syntax Description
Command Default
Command Modes
Command History
|
|
Usage Guidelines
Examples
This example shows how to display the status of DSCP-based queuing for all enabled modules:
Related Commands
|
|
---|---|
Enables the DSCP2Q mapping for the FEX host interface and FEX fabric interface. |
show port-channel summary
To display a summary of the Fabric Extender (FEX) port channel summary, use the show port-channel summary command.
Syntax Description
Command Default
Command Modes
Command History
|
|
Usage Guidelines
Examples
This example shows how to display a summary of fabric port channels that do not meet the minimum link criteria:
Related Commands
|
|
---|---|
show interface fex-fabric
To display all Fabric Extender fabric (FEX) interfaces, use the show interface fex-fabric command.
Syntax Description
Command Default
Command Modes
Command History
|
|
Examples
This example shows how to display all Fabric Extender fabric interfaces:
switch#
show interface fex-fabric
Related Commands
|
|
---|---|
Displays all configured Fabric Extender chassis connected to the switch. |
show logging level fex
To display the Fabric Extender (FEX) logging configuration, use the show logging level fex command.
Syntax Description
Defaults
Command Modes
Command History
|
|
---|---|
Usage Guidelines
Examples
This example shows how to display the FEX logging configuration:
Related Commands
|
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Displays all configured Fabric Extender chassis connected to the switch. |
show interface fex-intf
To display the host interfaces that are pinned to a fabric interface, use the show interface fex-intf command.
show interface interface fex-intf
Syntax Description
Command Default
Command Modes
Command History
|
|
Examples
This example shows how to display the host interfaces that are pinned to an Ethernet fabric interface on the parent switch:
switch#
show interface ethernet 1/1 fex-intf
This example shows how to display the host interfaces that are pinned to an EtherChannel fabric interface on the parent switch:
switch#
show interface port-channel 1 fex-intf
Related Commands
|
|
---|---|
Displays all configured Fabric Extender chassis connected to the switch. |
show interface transceiver fex-fabric
To display information about all transceivers that are connected to fabric interfaces, use the show interface transceiver fex-fabric command.
show interface transceiver fex-fabric [ calibration | detail ]
Syntax Description
(Optional) Displays detailed calibration information about the transceiver. |
|
(Optional) Displays detailed diagnostic information about the transceiver. |
Command Default
Command Modes
Command History
|
|
Examples
This example shows how to display information about all transceivers that connect to fabric interfaces:
switch#
show interface transceiver fex-fabric
Related Commands
|
|
---|---|
Displays all configured Fabric Extender chassis connected to the switch. |
show inventory fex
To display the physical inventory of a Fabric Extender (FEX), such as the name, description, and volume ID, use the show inventory fex command.
Syntax Description
Fabric Extender chassis ID. The chassis ID range is from 101 to 199. |
Command Default
Command Modes
Command History
|
|
---|---|
Examples
This example shows how to display the physical inventory of a specific Fabric Extender chassis:
Related Commands
|
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Displays all configured Fabric Extender chassis connected to the switch. |
show module fex
To display information about a Fabric Extender (FEX) module, use the show module fex command.
show module fex [ all | chassis_ID ]
Syntax Description
(Optional) Displays information about all Fabric Extender modules. |
|
Fabric Extender chassis ID. The chassis ID range is from 101 to 199. |
Command Default
Command Modes
Command History
|
|
---|---|
Examples
This example shows how to display information about all Fabric Extender’s modules:
This example shows how to display information about a specific Fabric Extender module:
Related Commands
|
|
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Displays all configured Fabric Extender chassis connected to the switch. |
show queuing interface
To display information about a queuing interface, use the show queuing interface command.
show queuing interface [ ethernet {fex_host_interface}
Syntax Description
(Optional) Specifies that queuing information be displayed for an Ethernet interface or a Fabric Extender host interface. |
|
Command Default
Command Modes
Command History
|
|
---|---|
Examples
This example shows how to display the FEX host interfaces, including the number of queues used, the mapping for each queue, the corresponding queue maximum transmission unit (MTU), the enforced hardware queue limit, and the ingress and egress queue statistics:
This example shows how to display Fabric Extender (FEX) host interface after an in-service software upgrade (ISSU):
This example shows that the FEX queuing is not supported for the Cisco Nexus 2248PQ10-Gigabit Ethernet Fabric Extender (FEX2248PQ):
Related Commands
|
|
---|---|
Displays all the configured Fabric Extender chassis connected to the switch. |
show running-config fex
To display information about the Fabric Extenders (FEX) running configuration, use the show running-config fex command.
Syntax Description
Command Default
Command Modes
Command History
|
|
---|---|
Examples
This example shows how to display information about the running FEX running configuration, including the buffer threshold value and queue limit:
Related Commands
|
|
---|---|
Displays all configured Fabric Extender chassis connected to the switch. |
show sprom fex
To display information about the Fabric Extender (FEX) Serial PROM (SPROM), use the show sprom fex command.
show sprom fex { all | chassis_ID { all | backplane | powersupply module_number }}
Syntax Description
Command Default
Command Modes
Command History
|
|
---|---|
Examples
This example shows how to display all SPROM content for a specific Fabric Extender:
This example shows how to display the power supply SPROM contents for a specific Fabric Extender:
Related Commands
|
|
---|---|
Displays all configured Fabric Extender chassis connected to the switch. |
show system reset-reason fex
To display the reason for the last reset of the Fabric Extender (FEX), use the show system reset-reason fex command.
show system reset-reason fex chassis_ID
Syntax Description
Fabric Extender chassis ID. The chassis ID range is from 101 to 199. |
Command Default
Command Modes
Command History
|
|
---|---|
Examples
This example shows how to display the last reset reason for a specific Fabric Extender:
Related Commands
|
|
---|---|
Displays all configured Fabric Extender chassis connected to the switch. |
show tech fex all
To gather detailed information for all Fabric Extender (FEX) troubleshooting information, use the show tech fex all command.
Syntax Description
Defaults
Command Modes
Command History
|
|
---|---|
Usage Guidelines
Examples
This example shows how to display detailed FEX information:
Related Commands
|
|
---|---|
Displays all configured Fabric Extender chassis connected to the switch. |
show tech-support fex
To display detailed troubleshooting information for a Fabric Extender (FEX), use the show tech-support fex command.
show tech-support fex all chassis-ID
Syntax Description
Defaults
Command Modes
Command History
|
|
Usage Guidelines
Examples
This example shows how to display detailed troubleshooting information for a FEX:
switch# show tech-support fex 101
09/06/2010 07:44:12.26863: Satctrl Built at Thu Aug 5 19:12:00 PDT 2010 on rami
neni-lnx in directory /ws/mhau-sjc/deewhy_june_2/build by mhau
09/06/2010 07:44:12.26883: Version: 2109/06/2010 07:44:12.26898: ***************
************************************
09/06/2010 07:44:12.38241: satellite_init: initializing modules
09/06/2010 07:44:12.38466: satctrl_get_cardid: Platform card ID 99
09/06/2010 07:44:12.38772: Platform info: cardid=99, num_slots=1
09/06/2010 07:44:12.463410: satctrl_get_cardid: Platform card ID 99
09/06/2010 07:44:12.463455: satellite_init: swcardid=99
09/06/2010 07:44:12.463598: get fru: chas ser:SSI14061500 chas model:N2K-C2248TP
-1GE chas part: 68-3601-04
09/06/2010 07:44:12.463625: get fru: mod ser:JAF1407AANJ mod model:N2K-C2248TP-1
GE mod part: 73-12748-04
09/06/2010 07:44:12.463649: satellite_init: initializing inband
09/06/2010 07:44:12.477534: satellite_init: inband initialized
09/06/2010 07:44:12.477723: satellite_module_cfg_init: initializing modue (0)
09/06/2010 07:44:12.478987: satctrl_module_fsm_init: Fsm initialized for fabric
module no (0, 0)
09/06/2010 07:44:12.479080: satctrl_module_fsm_init: Fsm initialized for fabric
module no (1, 0)
09/06/2010 07:44:12.479423: satellite_init: done initializing satctrl module
09/06/2010 07:44:12.479466: satctrl_set_mts_addr: dummy_addr: 0xff02
09/06/2010 07:44:12.479709: My addr is changed to 0xff
--More--
This example shows how to display all troubleshooting information for all FEXes:
Related Commands
|
|
---|---|
Displays all configured Fabric Extender chassis connected to the switch. |
show version fex
To display the software version information about a Fabric Extender (FEX), use the show version fex command.
Syntax Description
Fabric Extender chassis ID. The chassis ID range is from 101 to 199. |
Command Default
Command Modes
Command History
|
|
---|---|
Examples
This example shows how to display the software version of a Fabric Extender:
Related Commands
|
|
---|---|
Displays all configured Fabric Extender chassis connected to the switch. |
type
To set the Fabric Extender (FEX) card type to a specific card, use the type command. To revert to the default FEX card, use the no form of this command.
Syntax Description
Command Default
Command Modes
Fabric extender configuration mode
Command History
|
|
---|---|
N2232TM-E, N2248PQ and NB22HP are supported from release 6.2(2). |
|
Usage Guidelines
The following Cisco Nexus 7000 Series Fabric Extenders are supported on a Cisco Nexus 7000 Series switch that runs a Cisco NX-OS Release 4.2(1)N2(1):
- Cisco Nexus N2224TP Fabric Extender—It has two 10-Gigabit Ethernet fabric interfaces with small form-factor pluggable (SFP+) interface adapters for its uplink connection to the parent Cisco Nexus 5000 Series switch and 24 1000BASE-T (1-Gigabit) Ethernet host interfaces for its downlink connection to servers or hosts. It does not support Fibre Channel over Ethernet (FCoE).
- Cisco Nexus 2232PP Fabric Extender—It has eight 10-Gigabit Ethernet fabric interfaces with small form-factor pluggable (SFP+) interface adapters for its uplink connection to the parent Cisco Nexus 5000 Series switch and 32 10-Gigabit Ethernet fabric interfaces with SFP+ interface adapters for its downlink connection to servers or hosts.
- Cisco Nexus 2248TP Fabric Extender—Has four 10-Gigabit Ethernet fabric interfaces with SFP+ interface adapters for its uplink connection to the parent Cisco Nexus 5000 Series switch and 48 1000BASE-T (1-Gigabit) Ethernet host interfaces for its downlink connection to servers or hosts.
The following Cisco Nexus 7000 Series Fabric Extenders are supported on a Cisco Nexus 7000 Series switch that runs a Cisco NX-OS Release 5.0(3)N2(1):
- Cisco Nexus N2224TP Fabric Extender—Has two 10-Gigabit Ethernet fabric interfaces with small form-factor pluggable (SFP+) interface adapters for its uplink connection to the parent Cisco Nexus 5000 Series switch and 24 1000BASE-T (1-Gigabit) Ethernet host interfaces for its downlink connection to servers or hosts. It does not support Fibre Channel over Ethernet (FCoE).
- Cisco Nexus 2232PP Fabric Extender—Has eight 10-Gigabit Ethernet fabric interfaces with small form-factor pluggable (SFP+) interface adapters for its uplink connection to the parent Cisco Nexus 5000 Series switch and 32 10-Gigabit Ethernet fabric interfaces with SFP+ interface adapters for its downlink connection to servers or hosts.
- Cisco Nexus 2232TM Fabric Extender—Has eight 10-Gigabit Ethernet fabric interfaces with small form-factor pluggable (SFP+) interface adapters for its uplink connection to the parent Cisco Nexus 5000 Series switch and 32 10-Gigabit BASE-T Ethernet fabric interfaces for its downlink connection to servers or hosts.
- Cisco Nexus 2248TP Fabric Extender—Has four 10-Gigabit Ethernet fabric interfaces with SFP+ interface adapters for its uplink connection to the parent Cisco Nexus 5000 Series switch and 48 1000BASE-T (1-Gigabit) Ethernet host interfaces for its downlink connection to servers or hosts.
Examples
This example shows how to set the Fabric Extender card type:
Related Commands
|
|
---|---|
Creates a Fabric Extender and enters fabric extender configuration mode. |
|
Displays all configured Fabric Extender chassis connected to the switch. |