Configuring the Cisco Nexus 2000 Series Fabric Extender
Verifying the Configuration
- Verifying the Fabric Extender Configuration
- Verifying the Chassis Management Information
Additional References
- Related Documents
- Feature History

Configuring the Fabric Extender

This chapter describes how to configure a Cisco Nexus 2000 Series Fabric Extender using a parent Cisco Nexus 7000 Series device and includes the following sections:

Configuring the Cisco Nexus 2000 Series Fabric Extender
Verifying the Configuration
Additional References

Configuring the Cisco Nexus 2000 Series Fabric Extender

This section describes how to configure the Fabric Extender.

Managing the Fabric Extender Feature Set

You can install and manage the Fabric Extender feature set.

SUMMARY STEPS

1. Installing the Fabric Extender Feature Set

2. Enabling the Fabric Extender Feature Set

3. (Optional) Disallowing the Fabric Extender Feature Set

DETAILED STEPS

Step 1	Installing the Fabric Extender Feature Set
Step 2	Enabling the Fabric Extender Feature Set
Step 3	(Optional)Disallowing the Fabric Extender Feature Set

Installing the Fabric Extender Feature Set

Note

You must enable the Fabric Extender feature set in the default virtual device context (VDC). Once enabled in the default VDC, the FEX can belong to any VDC and can be configured from those VDCs. A single Fabric Extender belongs exclusively to a single VDC.

Before You Begin

Ensure that you are in the default VDC.

Ensure that you have disabled the Intrusion Detection System (IDS) reserved addresses check (it is disabled by default). Use the show hardware ip verify command and look for the string "address reserved" in the output. If the IDS reserved addresses check is enabled, disable it with the no hardware ip verify address reserved command.

SUMMARY STEPS

1. configure terminal

2. install feature-set fex

3. exit

DETAILED STEPS

Command or Action

Purpose

Step 1

configure terminal

Example:

switch# configure terminal
switch(config)#

Enters global configuration mode.

Step 2

install feature-set fex

Example:

switch(config)# install feature-set fex

Installs the Fabric Extender feature set in the default VDC.

To uninstall the Fabric Extender feature set, use the no install feature-set fex command. Before you can uninstall the feature set, you must ensure the following:

The feature set must be installed in the default VDC.
The feature set must not be enabled in any VDC.

Step 3

exit

Example:

switch(config)# exit
switch#

Exits global configuration mode.

Enabling the Fabric Extender Feature Set

You can enable the installed Fabric Extender feature set in any VDC on the device.

Before You Begin

Ensure that you have installed the Fabric Extender feature set in the default VDC.

Ensure that you are in the correct VDC or use the switchto vdc command.

SUMMARY STEPS

1. configure terminal

2. feature-set fex

3. exit

DETAILED STEPS

Command or Action

Purpose

Step 1

configure terminal

Example:

switch# configure terminal
switch(config)#

Enters configuration mode.

Step 2

feature-set fex

Example:

switch(config)# feature-set fex

Enables the Fabric Extender feature set. The feature set must be installed before it shows as an option to this command.

To disable the Fabric Extender feature set, use the no feature-set fex command. Before you can disable a feature set, you must install the feature set in the default VDC.

Note

The no feature-set fex command might take some time to complete if the size of the configuration is very large. The command cleans up all of the configurations associated with the Fabric Extender feature set.

Step 3

exit

Example:

switch(config)# exit
switch#

Exits configuration mode.

Disallowing the Fabric Extender Feature Set

By default, when you install the Fabric Extender feature set, it is allowed in all VDCs. You can disallow the installed Fabric Extender feature set in a specific VDC on the device.

Before You Begin

Ensure that you have installed the feature set in the default VDC.

Ensure that you have not enabled the feature set in the specified VDC.

SUMMARY STEPS

1. configure terminal

2. vdc vdc_ID

3. no allow feature-set fex

4. end

DETAILED STEPS

	Command or Action	Purpose
Step 1	configure terminal Example: switch# configure terminal switch(config)#	Enters configuration mode.
Step 2	vdc vdc_ID Example: switch(config)# vdc 1	Specifies a VDC and enters VDC configuration mode.
Step 3	no allow feature-set fex Example: switch(config-vdc)# no allow feature-set fex	Disallows the feature set in the VDC. You cannot disallow a feature set that is enabled in the specified VDC. By default, the installed Fabric Extender feature set is allowed in all VDCs on the device. You can disallow a feature set in a specific VDC. Subsequently, you can change the status back to allowed with the allow feature-set fex command.
Step 4	end Example: switch(config-vdc)# end switch#	Exits VDC configuration mode and returns to EXEC mode.

Associating a Fabric Extender to a Fabric Interface

A FEX is connected to its parent device through a port channel. By default, the parent device does not allow the attached Fabric Extender to connect until it has been assigned a FEX number and is associated with the connected interface.

Note

You must have installed and enabled the Fabric Extender features with the install feature-set fex and feature-set fex commands before you can configure and use a Fabric Extender that is connected to the parent switch.

Note

Associating a Fabric Extender to a fabric interface enables the specified port to operate only in shared rate-mode. The port does not support dedicated rate-mode when associated with a Fabric Extender.

Associating a Fabric Extender to a Port Channel
Disassociating a Fabric Extender From an Interface
Associating a Fabric Extender to an F2 Module

Associating a Fabric Extender to a Port Channel

Before You Begin

Ensure that you have installed and enabled the Fabric Extender feature set.

Ensure that you are in the correct VDC (or use the switchto vdc command).

SUMMARY STEPS

1. configure terminal

2. interface port-channel channel

3. switchport

4. switchport mode fex-fabric

5. fex associate FEX-number

6. (Optional) show interface port-channel channel fex-intf

DETAILED STEPS

Command or Action

Purpose

Step 1

configure terminal

Example:

switch# configure terminal
switch(config)#

Enters global configuration mode.

Step 2

interface port-channel channel

Example:

switch(config)# interface port-channel 4
switch(config-if)#

Specifies a port channel to configure.

Note

All interfaces in the port channel must be in the same VDC.

Step 3

switchport

Example:

switch(config-if)# switchport

Sets the interface as a Layer 2 switching port.

Step 4

switchport mode fex-fabric

Example:

switch(config-if)# switchport mode fex-fabric

Sets the port channel to support an external Fabric Extender.

Step 5

fex associate FEX-number

Example:

switch(config-if)# fex associate 101

Associates a FEX number to the Fabric Extender unit attached to the interface. The range is from 101 to 199.

Step 6

show interface port-channel channel fex-intf

Example:

switch# show interface port-channel 4 fex-intf

(Optional)

Displays the association of a Fabric Extender to a port channel interface.

This example shows how to associate the Fabric Extender to a port channel interface on the parent device:

switch# configure terminal
switch(config)# interface ethernet 1/28
switch(config-if)# channel-group 4
switch(config-if)# no shutdown
switch(config-if)# exit
switch(config)# interface ethernet 1/29
switch(config-if)# channel-group 4
switch(config-if)# no shutdown
switch(config-if)# exit
switch(config)# interface ethernet 1/30
switch(config-if)# channel-group 4
switch(config-if)# no shutdown
switch(config-if)# exit
switch(config)# interface ethernet 1/31
switch(config-if)# channel-group 4
switch(config-if)# no shutdown
switch(config-if)# exit
switch(config)# interface port-channel 4
switch(config-if)# switchport
switch(config-if)# switchport mode fex-fabric
switch(config-if)# fex associate 101

Tip

As a best practice, only enter the fex associate command from the port channel interface, not from the physical interface.

If you try to associate a physical port to a FEX before that physical port is joined to a port channel, the physical port moves to the err-disable state and the Cisco Nexus Series device does not communicate with the FEX on that link. You must enter the shutdown command and the no shutdown command on the Ethernet interface (not the port channel interface) to clear the err-disable state and bring the link up. (Note that this does not apply if the configuration is performed prior to cabling.)

Note

When adding physical interfaces to port channels, all configurations on the port channel and physical interface must match.

This example shows how to display the association of the Fabric Extender and the parent device:

switch# show interface port-channel 4 fex-intf
Fabric           FEX
Interface        Interfaces
---------------------------------------------------
Po4              Eth101/1/48   Eth101/1/47   Eth101/1/46   Eth101/1/45
                 Eth101/1/44   Eth101/1/43   Eth101/1/42   Eth101/1/41
                 Eth101/1/40   Eth101/1/39   Eth101/1/38   Eth101/1/37
                 Eth101/1/36   Eth101/1/35   Eth101/1/34   Eth101/1/33
                 Eth101/1/32   Eth101/1/31   Eth101/1/30   Eth101/1/29
                 Eth101/1/28   Eth101/1/27   Eth101/1/26   Eth101/1/25
                 Eth101/1/24   Eth101/1/23   Eth101/1/22   Eth101/1/21
                 Eth101/1/20   Eth101/1/19   Eth101/1/18   Eth101/1/17
                 Eth101/1/16   Eth101/1/15   Eth101/1/14   Eth101/1/13
                 Eth101/1/12   Eth101/1/11   Eth101/1/10   Eth101/1/9
                 Eth101/1/8    Eth101/1/7    Eth101/1/6    Eth101/1/5
                 Eth101/1/4    Eth101/1/3    Eth101/1/2    Eth101/1/1

Disassociating a Fabric Extender From an Interface

Before You Begin

Ensure that you have installed and enabled the Fabric Extender feature set.

Ensure that you are in the correct VDC (or use the switchto vdc command).

SUMMARY STEPS

1. configure terminal

2. interface {ethernet slot/port | port-channel channel}

3. no fex associate

DETAILED STEPS

	Command or Action	Purpose
Step 1	configure terminal Example: switch# configure terminal switch(config)#	Enters global configuration mode.
Step 2	interface {ethernet slot/port \| port-channel channel} Example: switch(config)# interface port-channel 4 switch(config-if)#	Specifies the interface to configure. The interface can be an Ethernet interface or a port channel.
Step 3	no fex associate Example: switch(config-if)# no fex associate	Disassociates the Fabric Extender unit attached to the interface.

Associating a Fabric Extender to an F2 Module

You can associate the Fabric Extender to an F2 module.

Before You Begin

Ensure that you have installed and enabled the Fabric Extender feature set.

switch# configure terminal
switch(config)# install feature-set fex
switch(config)# feature-set fex

Note

F2 modules are supported only by the following FEX devices:

2248TP
2248TP-E
2232TP
2232PP
2232TM
2224TP

Note

Each port in the ASIC has an index. Allow only ports with similar indices across ASICs to be added to a port channel.

For example, if port 1 has an index of 1 and port 2 has an index of 2, the following ports are supported and not supported:

Supported: Port 1 of ASIC 1 and port 1 of ASIC 2 are added to a port channel.
Not supported: Port 1 of ASIC 1 and port 2 of ASIC 2 to form a port channel.

A set of ports from an ASIC that has an index sub-set S, such as {1,2,4}, is allowed to be added to a port channel only if the port channel has an equivalent or an empty set.

SUMMARY STEPS

1. vdc switch

2. limit-resource module-type f2

3. interface ethernet mod-number port-range

4. allocate interface ethernet slot-port

5. switchport mode fex -fabric

6. fex associate FEX chassis number

7. channel-group port-channel number

8. no shutdown

9. int po port-channel number

10. no shutdown

DETAILED STEPS

	Command or Action	Purpose
Step 1	vdc switch Example: switch(config)# vdc switch	Specifies the VDC.
Step 2	limit-resource module-type f2 Example: switch(config)# limit-resource module-type f2	Specifies the module type.
Step 3	interface ethernet mod-number port-range Example: switch(config)# interface ethernet 1/1	Specifies the interface.
Step 4	allocate interface ethernet slot-port Example: switch(config)# allocate interface ethernet 1	Allocates the F2 interfaces to VDC.
Step 5	switchport mode fex -fabric Example: switch(config-if)# switchport mode fex -fabric	Specifies the FEX.
Step 6	fex associate FEX chassis number Example: switch(config-if)# fex associate 101	Specifies the chassis.
Step 7	channel-group port-channel number Example: switch(config-if)# channel-group 1	Specifies the port channel number.
Step 8	no shutdown Example: switch(config-if)# no shutdown	Brings up the port.
Step 9	int po port-channel number Example: switch(config-if)# int po 1	Specifies the port channel.
Step 10	no shutdown Example: switch(config-if)# no shutdown	Brings up the port channel.

Configuring Fabric Extender Global Features

You can configure global features on the Fabric Extender.

Before You Begin

Ensure that you have enabled the Fabric Extender feature set.

Ensure that you are in the correct VDC (or use the switchto vdc command).

SUMMARY STEPS

1. configure terminal

2. fex FEX-number

3. (Optional) description desc

4. (Optional) no description

5. (Optional) type FEX-type

6. (Optional) no type

7. (Optional) serial serial

8. (Optional) no serial

DETAILED STEPS

Command or Action

Purpose

Step 1

configure terminal

Example:

switch# configure terminal
switch(config)#

Enters global configuration mode.

Step 2

fex FEX-number

Example:

switch(config)# fex 101
switch(config-fex)#

Enters FEX configuration mode for the specified Fabric Extender. The range of the FEX-number is from 101 to 199.

Step 3

description desc

Example:

switch(config-fex)# description Rack7A-N2K

(Optional)

Specifies the description. The default is the string FEXxxxx where xxxx is the FEX number. If the FEX number is 123, the description is FEX0123.

Step 4

no description

Example:

switch(config-fex)# no description

(Optional)

Deletes the description.

Step 5

type FEX-type

Example:

switch(config-fex)# type N2248T

(Optional)

Specifies the type of Fabric Extender. The FEX-type is one of the following:

N2224TP—24 100 Base-T/1000 Base-T Ethernet host interfaces and 2 10-Gigabit SFP+ Ethernet fabric interfaces module
N2232P and N2232TM—32 10-Gigabit SFP+ Ethernet host interfaces and 8 10-Gigabit SFP+ Ethernet fabric interfaces module
N2248T and N2248TP-E—48 100 Base-T/1000 Base-T Ethernet host interfaces and 4 10-Gigabit SFP+ Ethernet fabric interfaces module.

The parent Cisco Nexus Series device remembers the type of the Fabric Extender in its binary configuration. When this feature is configured, the Fabric Extender is allowed only to come online if its type matches the configured FEX type.

Step 6

no type

Example:

switch(config-fex)# no type

(Optional)

Deletes the FEX type. When a Fabric Extender is connected to the fabric interfaces and does not match the configured type that is saved in the binary configuration on the parent switch, all configurations for all interfaces on the Fabric Extender are deleted.

Step 7

serial serial

Example:

switch(config-fex)# serial JAF1339BDSK

(Optional)

Defines a serial number string. If this command is configured, a switch allows the corresponding chassis ID to associate (using the fex associate command) only if the Fabric Extender reports a matching serial number string.

Caution

Configuring a serial number that does not match the specified Fabric Extender forces the Fabric Extender offline.

Step 8

no serial

Example:

switch(config-fex)# no serial

(Optional)

Deletes the serial number string.

Configuration Examples

This section contains examples of FEX configurations.

Configuring a FEX with a Layer 3 Host Interface
Configuring a Host Interface in a vPC Topology Connected to Two FEXs
Configuring a FEX in Active-Active Mode
Dual-homing of a Server to a FEX with FabricPath

Configuring a FEX with a Layer 3 Host Interface

This example shows how to configure a Fabric Extender with a Layer 3 host interface (at the interface level, subinterface level, port channel level, and port channel subinterface level):

Layer 3 Configuration	Layer 3 Subinterface Configuration
config t interface ethernet 101/1/1 no switchport ip address 192.0.1.1/24 Mtu 9000 no shutdown	config t interface ethernet 101/1/1.12 ip address 192.0.2.1/24 encapsulation dot1Q 12 mtu 850 no shutdown

Layer 3 Host Interface Port Channel Configuration	Layer 3 Host Interface Port Channel Subinterface Configuration
config t interface ethernet 101/1/1-2 no switchport channel-group 12 no shutdown interface port-channel 12 ip address 192.0.3.1/24 mtu 2000 no shutdown	config t interface ethernet 101/1/1-2 no switchport channel-group 12 no shutdown interface port-channel 12.14 ip address 192.0.4.1/24 encapsulation dot1Q 14 mtu 1700 no shutdown

Layer 3 Host Interface Port Channel Configuration

Layer 3 Host Interface Port Channel Subinterface Configuration

config t
interface ethernet 101/1/1-2
no switchport
channel-group 12
no shutdown

interface port-channel 12
ip address 192.0.3.1/24
mtu 2000
no shutdown

config t
interface ethernet 101/1/1-2
no switchport
channel-group 12
no shutdown

interface port-channel 12.14
ip address 192.0.4.1/24
encapsulation dot1Q 14
mtu 1700
no shutdown

Note

The VLAN used in the Layer 3 host interface (HIF) or host interface port channel (HIFPC) subinterface has only local significance to its parent interface. The same VLAN ID can be reused between Layer 3 subinterfaces in the same switch or VDC.

Configuring a Host Interface in a vPC Topology Connected to Two FEXs

This example shows how to configure a host vPC with a FEX (host vPC attached to two different FEXs):

Switch 1 Configuration	Switch 2 Configuration
config t feature lacp int e101/1/1-2 channel-group 12 mode active no shutdown Int port-channel10 switchport switchport mode trunk switchport trunk allowed vlan 1-20 vpc 10	config t feature lacp int e101/1/1-2 channel-group 12 mode active no shutdown Int port-channel10 switchport switchport mode trunk switchport trunk allowed vlan 1-20 vpc 10

Switch 1 Configuration

Switch 2 Configuration

config t
feature lacp
int e101/1/1-2
channel-group 12 mode active
no shutdown

Int port-channel10
switchport
  switchport mode trunk
  switchport trunk allowed vlan 1-20
vpc 10

config t
feature lacp
int e101/1/1-2
channel-group 12 mode active
no shutdown

Int port-channel10
switchport
  switchport mode trunk
  switchport trunk allowed vlan 1-20
vpc 10

Configuring a FEX in Active-Active Mode

This example shows how to configure a FEX in active-active mode:

Switch 1 Configuration	Switch 2 Configuration
int eth 1/1 channel-group 1 int po1 switchport switchport mode fex-fabric fex associate 101 vpc 10	int eth 2/2 channel-group 2 int po2 switchport switchport mode fex-fabric fex associate 101 vpc 10

Note

The chassis number (fex-id) for both switches must be the same.
Configuring FEX-AA across two VDCs on the same chassis is not supported.
FEX-AA does not support Layer 3 interfaces.

Dual-homing of a Server to a FEX with FabricPath

To configure FabricPath interfaces for two Cisco Nexus 7000 Series switches that are connected with FabricPath, perform the following tasks on each switch:

Enable FabricPath on each switch.
Configure the interfaces that you want to designate as FabricPath interfaces.
Set the STP priority device to 8192 on all FabricPath Layer 2 gateway devices.
(Optional) Set the STP domain ID for each of the separate STP domains that are connected to the FabricPath network.
(Optional) Configure a FEX switch ID.

To configure FabricPath interfaces, follow these steps:

(Optional) Enable FabricPath on each switch.

switch# config terminal
switch(config)# feature fabricpath
switch(config-lldp)# exit
switch(config)#

After you enable FabricPath on the switch, configure the specified interface as FabricPath interfaces.

switch(config)# interface ethernet 1/2
switch(config-if)# switchport mode fabricpath 
switch(config-if)# exit
switch(config)#

Configure the STP priority for all Rapid PVST+ VLANs as 8192.

switch# config terminal 
switch(config)# spanning-tree vlan 11-20 priority 8192
switch(config)#

Configure the STP priority for all MST instances as 8192.

switch# config terminal 
switch(config)# spanning-tree mst 1-5 priority 8192
switch(config)#

(Optional) Configure the STP domain ID on each FabricPath Layer 2 gateway switch attached to the FabricPath network.
```
switch# config terminal 
switch(config)# spanning-tree domain 5
switch(config)
```

(Optional) Configure the FEX switch ID.

Note

See the Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide for information on configuring FEX.

Note

FEX VPC+ configurations are supported only on F2 modules.

If you are setting up an initial FEX VPC+ configuration on an F Series module, follow these steps:

In the VPC domain configuration mode, enable partial DF mode with the fabricpath multicast load-balance command.
If disabled, enable TRILL style mac-address learning with the mac address-table core-port-learning command.
In the VPC domain configuration mode, configure the emulated switch ID with the fabricpath switchid switchid#command.
On each of the VPC/VPC+ peer link interfaces in interface configuration mode, enter the switchport mode fabricpath command.
On each VPC/VPC+ peer link port channel, enter the VPC peer-link command.
Configure the VPC ID with the vpc vpcid command.

If you are changing an existing FEX VPC configuration to a FEX VPC+ configuration on an F Series module, follow these steps:

In the VPC domain configuration mode, enable partial DF mode with the fabricpath multicast load-balance command.
If disabled, enable trill style mac-address learning with the mac address-table core-port-learning command.
In the VPC domain configuration mode, configure the emulated switch ID with the fabricpath switchid switchid# command.

Copy the configuration.

switch(config)# copy running-config startup-config
switch(config)#

Verifying the Configuration

This section describes how to display the configuration of the Fabric Extender and verify the chassis hardware status.

Verifying the Fabric Extender Configuration

Use the following commands to display configuration information about the defined interfaces on a Fabric Extender.

Command or Action	Purpose
show fex [FEX-number] [detail]	Displays information about a specific Fabric Extender or all attached units.
show interface type number fex-intf	Displays the Fabric Extender ports that are pinned to a specific switch interface.
show interface fex-fabric	Displays the switch interfaces that have detected a Fabric Extender uplink.
show interface ethernet number transceiver [fex-fabric]	Displays the SFP+ transceiver and diagnostic optical monitoring (DOM) information for the Fabric Extender uplinks.
show feature-set	Displays the status of the feature sets on the device.

Configuration Examples for the Fabric Extender

This example shows how to display all the attached Fabric Extender units:

switch# show fex
  FEX         FEX           FEX                       FEX
Number    Description      State            Model            Serial
------------------------------------------------------------------------
101        FEX0101            Online     N2K-C2248TP-1GE   JAF1418AARL

This example shows how to display the detailed status of a specific Fabric Extender:

switch# show fex 101 detail
FEX: 101 Description: FEX0101   state: Online
  FEX version: 5.1(1) [Switch version: 5.1(1)]
  FEX Interim version: 5.1(0.159.6)
  Switch Interim version: 5.1(1)
  Extender Model: N2K-C2248TP-1GE,  Extender Serial: JAF1418AARL
  Part No: 73-12748-05
  Card Id: 99, Mac Addr: 54:75:d0:a9:49:42, Num Macs: 64
  Module Sw Gen: 21  [Switch Sw Gen: 21]
 pinning-mode: static    Max-links: 1
  Fabric port for control traffic: Po101
  Fabric interface state:
    Po101 - Interface Up. State: Active
    Eth2/1 - Interface Up. State: Active
    Eth2/2 - Interface Up. State: Active
    Eth4/1 - Interface Up. State: Active
    Eth4/2 - Interface Up. State: Active
  Fex Port        State  Fabric Port  Primary Fabric
       Eth101/1/1    Up       Po101       Po101
       Eth101/1/2    Up       Po101       Po101
       Eth101/1/3  Down       Po101       Po101
       Eth101/1/4  Down       Po101       Po101
       Eth101/1/5  Down       Po101       Po101
       Eth101/1/6  Down       Po101       Po101
       Eth101/1/7  Down       Po101       Po101
       Eth101/1/8  Down       Po101       Po101
       Eth101/1/9  Down       Po101       Po101
      Eth101/1/10  Down       Po101       Po101
      Eth101/1/11  Down       Po101       Po101
      Eth101/1/12  Down       Po101       Po101
      Eth101/1/13  Down       Po101       Po101
      Eth101/1/14  Down       Po101       Po101
      Eth101/1/15  Down       Po101       Po101
      Eth101/1/16  Down       Po101       Po101
      Eth101/1/17  Down       Po101       Po101
      Eth101/1/18  Down       Po101       Po101
      Eth101/1/19  Down       Po101       Po101
      Eth101/1/20  Down       Po101       Po101
      Eth101/1/21  Down       Po101       Po101
      Eth101/1/22  Down       Po101       Po101
      Eth101/1/23  Down       Po101       Po101
      Eth101/1/24  Down       Po101       Po101
      Eth101/1/25  Down       Po101       Po101
      Eth101/1/26  Down       Po101       Po101
      Eth101/1/27  Down       Po101       Po101
      Eth101/1/28  Down       Po101       Po101
      Eth101/1/29  Down       Po101       Po101
      Eth101/1/30  Down       Po101       Po101
      Eth101/1/31  Down       Po101       Po101
      Eth101/1/32  Down       Po101       Po101
      Eth101/1/33  Down       Po101       Po101
      Eth101/1/34  Down       Po101       Po101
      Eth101/1/35  Down       Po101       Po101
      Eth101/1/36  Down       Po101       Po101
      Eth101/1/37  Down       Po101       Po101
      Eth101/1/38  Down       Po101       Po101
      Eth101/1/39  Down       Po101       Po101
      Eth101/1/40  Down       Po101       Po101
      Eth101/1/41  Down       Po101       Po101
      Eth101/1/42  Down       Po101       Po101
      Eth101/1/43  Down       Po101       Po101
      Eth101/1/44  Down       Po101       Po101
      Eth101/1/45  Down       Po101       Po101
      Eth101/1/46  Down       Po101       Po101
      Eth101/1/47  Down       Po101       Po101
      Eth101/1/48  Down       Po101       Po101
Logs:
09/21/2010 21:14:26.843850: Module register received
09/21/2010 21:14:26.845778: Registration response sent
09/21/2010 21:14:27.663073: Module Online Sequence
09/21/2010 21:14:30.191121: Module Online

This example shows how to display the Fabric Extender interfaces pinned to a specific switch interface:

switch# show interface port-channel 101 fex-intf
Fabric           FEX
Interface        Interfaces
---------------------------------------------------
 Po101           Eth101/1/2    Eth101/1/1

This example shows how to display the switch interfaces that are connected to a Fabric Extender uplink:

switch# show interface fex-fabric
     Fabric      Fabric       Fex                FEX
Fex  Port      Port State    Uplink    Model         Serial
---------------------------------------------------------------
101    Eth2/1        Active     1    N2K-C2248TP-1GE  JAF1418AARL
101    Eth2/2        Active     2    N2K-C2248TP-1GE  JAF1418AARL
101    Eth4/1        Active     3    N2K-C2248TP-1GE  JAF1418AARL
101    Eth4/2        Active     4    N2K-C2248TP-1GE  JAF1418AARL

This example shows how to display the SFP+ transceiver and diagnostic optical monitoring (DOM) information for Fabric Extender uplinks for an SFP+ transceiver that is plugged into the parent switch interface:

switch# show interface ethernet 1/40 transceiver
Ethernet1/40
    sfp is present
    name is CISCO-MOLEX INC
    part number is 74752-9026
    revision is A0
    serial number is MOC13321057
    nominal bitrate is 12000 MBits/sec
    Link length supported for copper is 3 m(s)
    cisco id is --
    cisco extended id number is 4

This example shows how to display the SFP+ transceiver and DOM information for Fabric Extender uplinks for an SFP+ transceiver that is plugged into the uplink port on the Fabric Extender:

switch# show interface ethernet 1/40 transceiver fex-fabric
Ethernet1/40
    sfp is present
    name is CISCO-MOLEX INC
    part number is 74752-9026
    revision is A0
    serial number is MOC13321057
    nominal bitrate is 12000 MBits/sec
    Link length supported for 50/125mm fiber is 0 m(s)
    Link length supported for 62.5/125mm fiber is 0 m(s)
    cisco id is --
    cisco extended id number is 4

This example shows how to display the status of the feature sets on the device:

switch# show feature-set
Feature Set Name      ID        State
--------------------  --------  --------
fcoe                   1          installed
fabricpath             2          enabled
fex                    3          enabled
switch#

This example shows how to display the services used by the Fabric Extender feature set:

switch# show feature-set services fex
vntag_mgr
fex
2 services in feature set fex
switch#

Verifying the Chassis Management Information

Use the following to display configuration information used on the switch supervisor to manage the Fabric Extender.

Command or Action	Purpose
show environment fex {all \| FEX-number} [temperature \| power \| fan]	Displays the environmental sensor status.
show inventory fex FEX-number	Displays inventory information for a Fabric Extender.
show module fex FEX-number	Displays module information about a Fabric Extender.
show sprom fex FEX-number {all \| backplane \| powersupply ps-num} \| all	Displays the contents of the serial PROM (SPROM) on the Fabric Extender.

Configuration Examples for Chassis Management

This example shows how to display the module information about all connected Fabric Extender units:

switch# show module fex

FEX Mod Ports Card Type                          Model              Status.
--- --- ----- ---------------------------------- ------------------ -----------
101  1  48    Fabric Extender 48x1GE + 4x10G M   N2K-C2248TP-1GE    ok

FEX Mod Sw              Hw      World-Wide-Name(s) (WWN)
--- --- --------------  ------  -----------------------------------------------
101  1  5.1(1)          3.5     --
FEX Mod  MAC-Address(es)                         Serial-Num
--- ---  --------------------------------------  ----------
101  1   5475.d0a9.4940 to 5475.d0a9.496f        JAF1418AARL

This example shows how to display the inventory information about a specific Fabric Extender:

switch# show inventory fex 101
NAME: "FEX 101 CHASSIS", DESCR: "N2K-C2248TP-1GE  CHASSIS"
PID: N2K-C2248TP-1GE   , VID: V00 , SN: SSI13380FSM

NAME: "FEX 101 Module 1", DESCR: "Fabric Extender Module: 48x1GE, 4x10GE Supervisor"
PID: N2K-C2248TP-1GE   , VID: V00 , SN: JAF1339BDSK

NAME: "FEX 101 Fan 1", DESCR: "Fabric Extender Fan module"
PID: N2K-C2248-FAN     , VID: N/A , SN: N/A

NAME: "FEX 101 Power Supply 2", DESCR: "Fabric Extender AC power supply"
PID: NXK-PAC-400W      , VID:  000, SN:      LIT13370QD6

This example shows how to display the environment status for a specific Fabric Extender:

switch# show environment fex 101


Temperature Fex 101:
-----------------------------------------------------------------
Module   Sensor     MajorThresh   MinorThres   CurTemp     Status
                    (Celsius)     (Celsius)    (Celsius)
-----------------------------------------------------------------
1        Outlet-1   60            50           33          ok
1        Outlet-2   60            50           38          ok
1        Inlet-1    50            40           35          ok
1        Die-1      100           90           44          ok


Fan Fex: 101:
------------------------------------------------------
Fan             Model                Hw         Status
------------------------------------------------------
Chassis         N2K-C2148-FAN        --         ok
PS-1            --                   --         absent
PS-2            NXK-PAC-400W         --         ok


Power Supply Fex 101:
---------------------------------------------------------------------------
Voltage: 12 Volts
-----------------------------------------------------
PS  Model                Power       Power     Status
                         (Watts)     (Amp)
-----------------------------------------------------
1   --                        --        --     --
2   NXK-PAC-400W            4.32      0.36     ok


Mod Model                Power     Power       Power     Power       Status
                         Requested Requested   Allocated Allocated
                         (Watts)   (Amp)       (Watts)   (Amp)
--- -------------------  -------   ----------  --------- ----------  ----------
1    N2K-C2248TP-1GE     0.00      0.00        0.00      0.00        powered-up


Power Usage Summary:
--------------------
Power Supply redundancy mode:                 redundant

Total Power Capacity                                4.32 W

Power reserved for Supervisor(s)                    0.00 W
Power currently used by Modules                     0.00 W

                                                -------------
Total Power Available                               4.32 W
                                                -------------

This example shows how to display the SPROM for a specific Fabric Extender:

switch# show sprom fex 101 all
DISPLAY FEX 101 SUP sprom contents
Common block:
 Block Signature : 0xabab
 Block Version   : 3
 Block Length    : 160
 Block Checksum  : 0x1a1e
 EEPROM Size     : 65535
 Block Count     : 3
 FRU Major Type  : 0x6002
 FRU Minor Type  : 0x0
 OEM String      : Cisco Systems, Inc.
 Product Number  : N2K-C2248TP-1GE
 Serial Number   : JAF1339BDSK
 Part Number     : 73-12748-01
 Part Revision   : 11
 Mfg Deviation   : 0
 H/W Version     : 0.103
 Mfg Bits        : 0
 Engineer Use    : 0
 snmpOID         : 9.12.3.1.9.78.3.0
 Power Consump   : 1666
 RMA Code        : 0-0-0-0
 CLEI Code       : XXXXXXXXXTBDV00
 VID             : V00
Supervisor Module specific block:
 Block Signature : 0x6002
 Block Version   : 2
 Block Length    : 103
 Block Checksum  : 0x2686
 Feature Bits    : 0x0
 HW Changes Bits : 0x0
 Card Index      : 11016
 MAC Addresses   : 00-00-00-00-00-00
 Number of MACs  : 0
 Number of EPLD  : 0
 Port Type-Num   : 1-48;2-4
 Sensor #1       : 60,50
 Sensor #2       : 60,50
 Sensor #3       : -128,-128
 Sensor #4       : -128,-128
 Sensor #5       : 50,40
 Sensor #6       : -128,-128
 Sensor #7       : -128,-128
 Sensor #8       : -128,-128
 Max Connector Power: 4000
 Cooling Requirement: 65
 Ambient Temperature: 40

DISPLAY FEX 101 backplane sprom contents:
Common block:
 Block Signature : 0xabab
 Block Version   : 3
 Block Length    : 160
 Block Checksum  : 0x1947
 EEPROM Size     : 65535
 Block Count     : 5
 FRU Major Type  : 0x6001
 FRU Minor Type  : 0x0
 OEM String      : Cisco Systems, Inc.
 Product Number  : N2K-C2248TP-1GE
 Serial Number   : SSI13380FSM
 Part Number     : 68-3601-01
 Part Revision   : 03
 Mfg Deviation   : 0
 H/W Version     : 1.0
 Mfg Bits        : 0
 Engineer Use    : 0
 snmpOID         : 9.12.3.1.3.914.0.0
 Power Consump   : 0
 RMA Code        : 0-0-0-0
 CLEI Code       : XXXXXXXXXTDBV00
 VID             : V00
Chassis specific block:
 Block Signature : 0x6001
 Block Version   : 3
 Block Length    : 39
 Block Checksum  : 0x2cf
 Feature Bits    : 0x0
 HW Changes Bits : 0x0
 Stackmib OID    : 0
 MAC Addresses   : 00-0d-ec-e3-28-00
 Number of MACs  : 64
 OEM Enterprise  : 0
 OEM MIB Offset  : 0
 MAX Connector Power: 0
WWN software-module specific block:
 Block Signature : 0x6005
 Block Version   : 1
 Block Length    : 0
 Block Checksum  : 0x66
wwn usage bits:
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00
 00 00
License software-module specific block:
 Block Signature : 0x6006
 Block Version   : 1
 Block Length    : 16
 Block Checksum  : 0x86f
lic usage bits:
 ff ff ff ff ff ff ff ff

DISPLAY FEX 101 power-supply 2 sprom contents:
Common block:
 Block Signature : 0xabab
 Block Version   : 3
 Block Length    : 160
 Block Checksum  : 0x1673
 EEPROM Size     : 65535
 Block Count     : 2
 FRU Major Type  : 0xab01
 FRU Minor Type  : 0x0
 OEM String      : Cisco Systems Inc   NXK-PAC-400W
 Product Number  : NXK-PAC-400W
 Serial Number   :      LIT13370QD6
 Part Number     :         341
 Part Revision   : -037
 CLEI Code       : 5-01     01  000
 VID             :  000
 snmpOID         : 12336.12336.12336.12336.12336.12336.12374.12336
 H/W Version     : 43777.2
 Current         : 36
 RMA Code        : 200-32-32-32
Power supply specific block:
 Block Signature : 0x0
 Block Version   : 0
 Block Length    : 0
 Block Checksum  : 0x0
 Feature Bits    : 0x0
 Current 110v    : 36
 Current 220v    : 36
 Stackmib OID    : 0

Additional References

This section includes additional information that is related to configuring the Cisco Nexus 2000 Series Fabric Extender.

Related Documents
Feature History

Related Topic	Document Title
Cisco NX-OS Licensing	Cisco NX-OS Licensing Guide
Virtual device contexts (VDC)	Cisco Nexus 7000 Series NX-OS Virtual Device Context Configuration Guide
Interface configuration	Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide
Command reference	Cisco Nexus 7000 Series Command References available at the following URL: http://www.cisco.com/en/US/products/ps9402/prod_command_reference_list.html

Feature History

This table lists the release history for this feature.

Table 1 Feature History for the Cisco Nexus 2000 Series Fabric Extender
Feature Name	Releases	Feature Information
Support for the Cisco Nexus 7000 Series	6.1(1)	Support was added when the FEX is connected to the 48-port, 100/1000 BASE-T (100-Mb/1-Gigabit) N2248TP-E, and 32-port 10-Gigabit SFP+ N2248TP-E.
Support for M2 series modules	6.1(1)	Support for M2 series modules.
Support for the Cisco Nexus 7000 Series	6.0(1)	Support was added when the FEX is connected to the 48-port, 1/10-Gigabit F2 module (N7K-F248XP-25).
Support for the Cisco Nexus 7000 Series	5.1(1)	Support was added when the FEX is connected to the 32-port, 10-Gigabit M1 module (N7K-M132XP-12) or the 32-port, 10-Gigabit M1 XL module (N7K-M132XP-12L).
Feature set commands	5.1(1)	The Fabric Extender is enabled on the parent Cisco Nexus 7000 Series device with the install feature-set and feature-set commands.
Port channel and vPC support	5.2(1)	Support was added for port channels and the integration of vPC on the host interfaces.
Layer 3 support	5.2(1)	Layer 3 capability was added to the Fabric Extender host interface ports including IPv4 and IPv6 and IGMP snooping.

Cisco Nexus 2000 Series NX-OS Fabric Extender Software Configuration Guide for Cisco Nexus 7000 Series Switches, Release 6.x

Bias-Free Language

Book Title

Cisco Nexus 2000 Series NX-OS Fabric Extender Software Configuration Guide for Cisco Nexus 7000 Series Switches, Release 6.x

Chapter Title