Table of Contents

A Commands

B Commands

D Commands

F Commands

H Commands

I Commands

L Commands

N Commands

P Commands

S Commands

Show Commands

T Commands

Preface

A Commands

This chapter describes the Cisco NX-OS commands that begin with A that are used to manage a Cisco Nexus 2000 Series Fabric Extender from a Cisco Nexus 6000 switch.

attach fex

To access the command-line interface (CLI) of a connected Fabric Extender to run diagnostic commands, use the attach fex command.

attach fex chassis_ID

Syntax Description

chassis_ID

Fabric Extender chassis ID. The chassis ID range is from 100 to 199.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Usage Guidelines

Use the attach fex command to access the CLI on a connected Fabric Extender and performing diagnostic commands. We recommend that you use this command only following direction 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

Command

Description

show fex

Displays all configured Fabric Extender chassis connected to the switch.

B Commands

This chapter describes the Cisco NX-OS commands that begin with B that are used to manage a Cisco Nexus 2000 Series Fabric Extender from a Cisco Nexus 5000 Series switch.

beacon

To turn on the locator beacon LED of a Fabric Extender, use the beacon command. To turn off the locator beacon LED, use the no form of this command.

beacon

no beacon

Syntax Description

This command has no arguments or keywords.

Command Default

None

Command Modes

Fabric extender configuration mode

Command History

Release

Modification

4.0(1a)N2(1)

This command was introduced.

4.1(3)N1(1)

This command was deprecated, and the locator-led command was introduced.

Usage Guidelines

Use the beacon command to toggle the locator beacon LED of a Fabric Extender, which allows you to easily identify the machine in a busy data center.

Examples

This example shows how to turn on the locator beacon LED for a specific Fabric Extender chassis:

switch# configure terminal

switch(config)# fex 101

switch(config-fex)# beacon

This example shows how to turn off the locator beacon LED for a specific Fabric Extender chassis:

switch# configure terminal

switch(config)# fex 101

switch(config-fex)# no beacon

Related Commands

Command

Description

fex

Creates a Fabric Extender and enters Fabric Extender configuration mode.

show fex

Displays all configured Fabric Extender chassis connected to the switch.

D Commands

This chapter describes the Cisco NX-OS commands that begin with D that are used to manage a Cisco Nexus 2000 Series Fabric Extender from a Cisco Nexus 6000 switch.

description (fex)

To specify a description for a Fabric Extender, use the description command. To revert to the default description, use the no form of this command.

description description

no description

Syntax Description

description

Description of a Fabric Extender. The default is the string FEXxxxx where xxxx is the chassis ID. For example, if the chassis ID is 123, the default description is FEX0123. The maximum length is 20 alphanumeric characters.

Command Default

None

Command Modes

Fabric extender configuration mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

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

Command

Description

fex

Creates a Fabric Extender and enters Fabric Extender configuration mode.

show fex

Displays all configured Fabric Extender chassis connected to the switch.

diagnostic bootup level

To configure the bootup diagnostic level to trigger diagnostics when the device boots, use the diagnostic bootup level command. To remove the bootup diagnostic level configuration, use the no form of this command.

diagnostic bootup level {bypass | complete}

no diagnostic bootup level {bypass | complete}

Syntax Description

bypass

Specifies that all bootup tests are skipped.

complete

Specifies that all bootup diagnostics are performed. This is the default value.

Command Default

Complete

Command Modes

Global configuration mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

This example shows how to configure the bootup diagnostics level to trigger the complete diagnostics:

switch(config)# diagnostic bootup level complete

switch(config)#

This example shows how to remove the bootup diagnostics level configuration:

switch(config)# no diagnostic bootup level complete

switch(config)#

Related Commands

Command

Description

show diagnostic bootup level

Displays the bootup diagnostics level.

show diagnostic bootup result

Displays the results of the diagnostics tests.

F Commands

This chapter describes the Cisco NX-OS commands that begin with F that are used to manage a Cisco Nexus 2000 Series Fabric Extender from a Cisco Nexus 6000 switch.

fcoe

To associate a Cisco Nexus 2000 Series Fabric Extender (FEX) to a switch for pinning Fibre Channel over Ethernet (FCoE) Initialization Protocol (FIP) and FCoE traffic, use the fcoe command. To remove the association, use the no form of this command.

fcoe [vsan vsan-id]

no fcoe [vsan]

Syntax Description

vsan vsan-id

Specifies the VSAN status. The VSAN ID range is from 1 to 4094.

Command Default

None

Command Modes

FEX configuration mode

VLAN configuration mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Usage Guidelines

Before you use this command, make sure that you enable the Fabric Extender (FEX) features on the switch by using the feature fex command.

You can use this command only on Cisco Nexus 2232P and Cisco Nexus 2232PQ Fabric Extenders. When you bind an interface to a virtual Fibre Channel interface to enable FCoE traffic, you must use slot number 1. The port number can be from 1 to 32.

Examples

This example shows how to configure a FEX as FCoE enabled:

switch# configure terminal

switch(config)# feature fex

switch(config)# fex 100

switch(config-fex)# fcoe

switch(config-fex)#

This example shows how to configure a pair of FEXs to carry FCoE traffic in a fabric virtual port channel (vPC) topology, with the host uplink ports in the FEXs configured to the same port channel:

switch# configure terminal

switch(config)# feature lacp

switch(config)# feature fex

switch(config)# feature fcoe

switch(config)# fex 100

switch(config-fex)# fcoe

switch(config-fex)# exit

switch(config)# interface vfc 1

switch(config-if)# bind interface eth101/1/1

switch(config)# interface eth101/1/1

switch(config-if)# channel-group 1

switch(config)# fex 102

switch(config-fex)# fcoe

switch(config)# interface vfc 1

switch(config-if)# bind interface eth102/1/1

switch(config)# interface eth102/1/1

switch(config-if)# channel-group 1

switch(config-if)#

This example shows how to configure FCoE traffic on a VLAN:

switch# configure terminal

switch(config)# vlan 5

switch(config-vlan)# fcoe vsan 1

switch(config-vlan)#

This example shows how to disable FCoE traffic on a FEX:

switch# configure terminal

switch(config)# fex 100

switch(config-fex)# no fcoe

switch(config-fex)#

Related Commands

Command

Description

feature fcoe

Enables the FCoE feature on the switch.

feature fex

Enables the FEX feature on the switch.

feature lacp

Enables the Link Aggregation Control Protocol (LACP).

show fex

Displays information about a specific FEX.

feature fex

To enable Fabric Extender (FEX) features on the switch, use the feature fex command. To disable FEX, use the no form of this command.

feature fex

no feature fex

Syntax Description

This command has no arguments or keywords.

Command Default

None

Command Modes

Global configuration mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

This example shows how to enable FEX features on the switch:

switch(config)# feature fex

switch(config)#

Related Commands

Command

Description

fex

Creates a Fabric Extender and enters fabric extender configuration mode.

show feature

Displays the features enabled or disabled on 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.

fex chassis_ID

no fex chassis_ID

Syntax Description

chassis_ID

Fabric Extender chassis ID. The chassis ID range is from 100 to 199.

Command Default

None

Command Modes

Global configuration mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Usage Guidelines

You can 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 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

switch(config-fex)#

This example shows how to delete the Fabric Extender configuration:

switch(config-fex)# no fex 101

switch(config)#

Related Commands

Command

Description

beacon

Turns on the locator beacon LED of a Fabric Extender.

description (fex)

Specifies a description for a Fabric Extender.

fex associate

Associates a Fabric Extender to an Ethernet or EtherChannel interface.

pinning max-links

Specifies the number of statically pinned uplinks connected to a Fabric Extender.

serial

Assigns a serial number to a Fabric Extender.

show fex

Displays all configured Fabric Extender chassis connected to the switch.

type

Specifies the Fabric Extender card.

fex associate

To associate a Fabric Extender to a fabric interface, use the fex associate command. To disassociate the Fabric Extender, use the no form of this command.

fex associate chassis_ID

no fex associate [chassis_ID]

Syntax Description

chassis_ID

Fabric Extender chassis ID. The chassis ID range is from 100 to 199.

Command Default

None

Command Modes

Interface configuration mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

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 Ethernet interface:

switch# configure terminal

switch(config)# interface ethernet 1/40

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

switch(config-if)# fex associate 101

This example shows how to associate the Fabric Extender to an EtherChannel interface:

switch# configure terminal

switch(config)# interface port-channel 4

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

switch(config-if)# fex associate 101

Related Commands

Command

Description

show fex

Displays all configured Fabric Extender chassis connected to the switch.

switchport mode fex-fabric

Sets the interface to be an uplink port.

fex pinning redistribute

To redistribute the host interfaces on a Fabric Extender, use the fex pinning redistribute command.

fex pinning redistribute chassis_ID

Syntax Description

chassis_ID

Fabric Extender chassis ID. The chassis ID range is from 100 to 199.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Usage Guidelines

When you provision the Fabric Extender using the statically pinned mode (see the Cisco Nexus 2000 Series Fabric Extender Software Configuration Guide), the host interfaces on the Fabric Extender are pinned to the fabric interfaces in the order that they were initially configured. The next time that you reboot the Fabric Extender, the configured fabric interfaces are pinned to the host interfaces in an ascending order by the port number of the fabric interface.

Use the fex pinning redistribute command if you want to configure the same fixed distribution of host interfaces without restarting the Fabric Extender after your initial configuration.

Caution This command disrupts all the host interface ports of the Fabric Extender. However, the disruption is shorter than would be the case if you reboot the Fabric Extender.

Examples

This example shows how to redistribute the host interfaces on a Fabric Extender:

switch# fex pinning redistribute 101

switch#

Related Commands

Command

Description

pinning max-links

Defines the number of uplinks on a Fabric Extender.

show fex

Displays all configured Fabric Extender chassis connected to the switch.

show interface fex-intf

Displays the Fabric Extender ports pinned to a specific switch interface.

fex queue-limit

To limit the amount of input buffer space (in bytes) allocated to each Fabric Extender port, use the fex queue-limit command. To disable the drop threshold and allow a Fabric Extender port to use all available buffer space, use the no form of this command.

fex queue-limit

no fex queue-limit

Syntax Description

This command has no arguments or keywords.

Command Default

Fabric Extender queue limit is available in the default configuration and is set on.

Command Modes

System QoS configuration mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Usage Guidelines

By default, the drop threshold applies to each Fabric Extender port to limit the amount of buffer being allocated for each port. To restore the default queue limit of each Fabric Extender port, use the fex queue-limit command.

Examples

This example shows how to set the queue limit for the input buffer for each Fabric Extender port:

switch(config)# system qos

switch(config-sys-qos)# fex queue-limit

switch(config-sys-qos)#

This example shows how to restore the default queue limit for each Fabric Extender port:

switch(config)# system qos

switch(config-sys-qos)# no fex queue-limit

switch(config-sys-qos)#

Related Commands

Command

Description

show fex

Displays all configured Fabric Extender chassis connected to the switch.

H Commands

This chapter describes the Cisco NX-OS commands that begin with H that are used to manage a Cisco Nexus 2000 Series Fabric Extender from a Cisco Nexus 6000 switch.

hardware buffer-threshold

To limit the amount of input hardware buffer usage for each Fabric Extender, use the hardware buffer-threshold command. To revert to the default and allow a Fabric Extender to use all available hardware buffer space, use the no form of this command.

hardware fex_card_typ buffer-threshold buffer-limit

no hardware fex_card_typ buffer-threshold

Syntax Description

fex_card_type

Fabric Extender card type. The following Fabric Extender card types are supported:

- N2148T —Fabric Extender 48x1G 4x10G SFP+ Module

See the “Usage Guidelines” section for a description of this Fabric Extender.

buffer-limit

Buffer threshold limit in bytes. The range is from 81920 to 316160.

Command Default

None

Command Modes

Fabric extender configuration mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Usage Guidelines

Note This command is supported only on a Cisco Nexus 2148T Fabric Extender.

The Cisco Nexus 2148T Fabric Extender has four 10-Gigabit Ethernet fabric interfaces for its uplink connection to the parent Cisco Nexus 6000 Series switch and 48 1000BASE-T (1-Gigabit) Ethernet host interfaces for its downlink connection to servers or hosts.

The buffer-threshold keyword sets the consumption level of input buffers before an indication is sent to the egress queue to start observing the tail drop threshold. If the buffer usage is lower than the configured buffer threshold, the tail drop threshold is ignored.

Examples

This example shows how to configure the hardware buffer threshold limit on a Cisco Nexus 2148T Fabric Extender:

switch(config)# fex 110

switch(config-fex)# hardware N2148T buffer-threshold 163840

switch(config-fex)#

This example shows how to remove the hardware buffer threshold configured on a Cisco Nexus 2148T Fabric Extender:

switch(config)# fex 110

switch(config-fex)# no hardware N2148T buffer-threshold

switch(config-fex)#

Related Commands

Command

Description

fex

Creates a Fabric Extender and enters fabric extender configuration mode.

show fex

Displays all configured Fabric Extender chassis connected to the switch.

show queuing interface

Displays information about interface queuing parameters, including buffer threshold and queue limits.

show running-config fex

Displays the running configuration for Fabric Extenders.

hardware N2248PQ uplink-load-balance-mode

To enable the load balancing queues for the Cisco Nexus 2248PQ Fabric Extender, use the hardware N2248PQ uplink-load-balance-mode command. To disable load balancing queues,use the no form of this command.

hardware N2248PQ uplink-load-balance-mode

no hardware N2248PQ uplink-load-balance-mode

Syntax Description

This command has no arguments or keywords.

Command Default

None

Command Modes

Fabric extender configuration mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Usage Guidelines

Note This command is supported only on a Cisco Nexus 2248PQ Fabric Extender.

The Cisco Nexus 2248PQ has 48 10-Gigabit Ethernet host interfaces with SFP+ interface adapters and 16 10-Gigabit Ethernet fabric interfaces corresponding to 4 QSFP interface adapters for its uplink connection to the parent switch.

Examples

This example shows how to enable the load balancing queues for a Cisco Nexus 2248PQ Fabric Extender:

switch(config)# fex 100

switch(config-fex)# hardware N2248PQ uplink-load-balance-mode

switch(config-fex)#

This example shows how to disable the load balancing queues for a Cisco Nexus 2248PQ Fabric Extender:

switch(config)# fex 100

switch(config-fex)# no hardware N2248PQ uplink-load-balance-mode

switch(config-fex)#

Related Commands

Command

Description

fex

Creates a Fabric Extender and enters fabric extender configuration mode.

show fex

Displays all configured Fabric Extender chassis connected to the switch.

show queuing interface

Displays information about interface queuing parameters, including buffer threshold and queue limits.

show running-config fex

Displays the running configuration for Fabric Extenders.

hardware queue-limit

To control the egress queue tail drop threshold level on a Fabric Extender, use the hardware queue-limit command. To disable the drop threshold and allow a Fabric Extender to use all available hardware buffer space, use the no form of this command.

hardware fex_card_typ queue-limit [queue-limit] [rx | tx]

no hardware fex_card_typ queue-limit [rx | tx]

Syntax Description

fex_card_type

Fabric Extender card type. The following Fabric Extender card types are supported:

- N2148T —Fabric Extender 48x1G 4x10G SFP+ Module

- N2224TP —Fabric Extender 24x1G 2x10G SFP+ Module

- N2232P —Fabric Extender 32x10G SFP+ 8x10G SFP+ Module

- N2232TM —Fabric Extender 32x10GBase-T 8x10G SFP+ Module

- N2248T —Fabric Extender 48x1G 4x10G SFP+ Module

- N2248TP-E —Fabric Extender 48x1G 4x10G SFP+ Module

- N2248PQ —Fabric Extender 48x10G SFP+ 16x10G SFP+ Module

See the “Usage Guidelines” section for a description of these Fabric Extenders.

queue-limit

(Optional) Queue limit in bytes. The range is from 81920 to 652800 for a Cisco Nexus 2148T Fabric Extender, from 32768 to 33538048 for a on a Cisco Nexus 2248TP-E Fabric Extender, and from 5120 to 652800 for all other supported Fabric Extenders.

rx

(Optional) Specifies the default queue-limit for receiving (ingress).

Note This keyword is supported only on a Cisco Nexus 2248TP-E Fabric Extender.

tx

(Optional) Specifies the default queue-limit for transmission (egress).

Note This keyword is supported only on a Cisco Nexus 2248TP-E Fabric Extender.

Command Default

The default queue-limit for rx (ingress) on a Cisco Nexus 2248TP-E Fabric Extender is 1MB.

The default queue-limit for tx (egress) on a Cisco Nexus 2248TP-E Fabric Extender is 4MB.

Command Modes

Fabric extender configuration mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Usage Guidelines

You can use a lower queue limit value on the Fabric Extender to prevent one blocked receiver from affecting traffic being sent to other noncongested receivers (head-of-line blocking); however, this will increase burst absorption on the ingress traffic. A higher queue limit value provides better burst absorption and less head-of-line blocking protection.

Supported Cisco Nexus 2000 Series Fabric Extender

The following Cisco Nexus 2000 Series Fabric Extenders are supported on a Cisco Nexus 6000 Series switch:

- Cisco Nexus 2148T Fabric Extender—It has four 10-Gigabit Ethernet fabric interfaces for its uplink connection to the parent Cisco Nexus switch and 48 1000BASE-T (1-Gigabit) Ethernet host interfaces for its downlink connection to servers or hosts.

- 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 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 2232P 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 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—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 switch and 32 10-Gigabit BASE-T Ethernet fabric interfaces for its downlink connection to servers or hosts.

- Cisco Nexus 2248T Fabric Extender—It has four 10-Gigabit Ethernet fabric interfaces with SFP+ interface adapters for its uplink connection to the parent Cisco Nexus switch and 48 1000BASE-T (1-Gigabit) Ethernet host interfaces for its downlink connection to servers or hosts.

- Cisco Nexus N2248TP-E Fabric Extender—It has four 10-Gigabit Ethernet fabric interfaces for its uplink connection to the parent Cisco Nexus switch and 48 1000BASE-T (1-Gigabit) Ethernet host interfaces with small form-factor pluggable (SFP+) interface adapters for its downlink connection to servers or hosts.

- Cisco Nexus 2248PQ Fabric Extender—It has 48 10-Gigabit Ethernet host interfaces with SFP+ interface adapters and 16 10-Gigabit Ethernet fabric interfaces corresponding to 4 QSFP interface adapters for its uplink connection to the parent switch.

Examples

This example shows how to configure the hardware buffer queue limit on a Cisco Nexus 2248T Fabric Extender:

switch(config)# fex 110

switch(config-fex)# hardware N2248T queue-limit 327680

switch(config-fex)#

This example shows how to remove the hardware buffer queue limit configured on a Cisco Nexus 2248T Fabric Extender:

switch(config)# fex 110

switch(config-fex)# no hardware N2248T queue-limit

switch(config-fex)#

Related Commands

Command

Description

fex

Creates a Fabric Extender and enters fabric extender configuration mode.

show fex

Displays all configured Fabric Extender chassis connected to the switch.

show queuing interface

Displays information about interface queuing parameters, including buffer threshold and queue limits.

show running-config fex

Displays the running configuration for Fabric Extenders.

hardware shared-buffer-size

To configure the shared buffer size for a Cisco Nexus 2000 Series Fabric Extender, use the hardware shared-buffer-size command. To revert to the default setting, use the no form of this command.

hardware fex_card_type shared-buffer-size [buffer-size]

no hardware fex_card_type shared-buffer-size [buffer-size]

Syntax Description

fex_card_type

Fabric Extender card type. The following Fabric Extender card types are supported:

- N2248TP-E —Fabric Extender 48x1G 4x10G SFP+ Module

- N2248PQ —Fabric Extender 48x10G SFP+ 16x10G SFP+ Module

See the “Usage Guidelines” section for a description of this Fabric Extender.

buffer-size

(Optional) Shared buffer size (KB). The range is from 10800KB to 25392KB.

Command Default

The default size of the shared buffer is 25392KB.

Command Modes

Fabric Extender configuration mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

The Cisco Nexus N2248TP-E Fabric Extender and the Cisco Nexus N2248PQ Fabric Extender were introduced.

Usage Guidelines

Note This command is supported only on Cisco Nexus 2248TP-E and Cisco Nexus N2248PQ Fabric Extenders.

The Cisco Nexus N2248TP-E Fabric Extender has four 10-Gigabit Ethernet fabric interfaces for its uplink connection to the parent Cisco Nexus switch and 48 1000BASE-T (1-Gigabit) Ethernet host interfaces with small form-factor pluggable (SFP+) interface adapters for its downlink connection to servers or hosts.

The total available buffer is 32MB which is shared in both direction (ingress, egress).

The default size of the shared buffer is 25392KB. However, when configuring an Ethernet-based pause no-drop class, the shared buffer size changes to 10800KB. This change is required to increase the dedicated buffer that supports the pause no-drop class. The pause no-drop class does not use buffer space from the shared-pool.

The Cisco Nexus 2248PQ Fabric Extender has 48 10-Gigabit Ethernet host interfaces with SFP+ interface adapters and 16 10-Gigabit Ethernet fabric interfaces corresponding to 4 QSFP interface adapters for its uplink connection to the parent switch.

Examples

This example shows how to configure the hardware buffer size on a Cisco Nexus 2248TP-E Fabric Extender:

switch# configure terminal

switch(config)# fex 100

switch(config-fex)# hardware N2248TTP-E shared-buffer-size 25000

switch(config-fex)#

This example shows how to remove the hardware pause no-drop configuration between a Cisco Nexus 2248TTP-E Fabric Extender and a switch:

switch# configure terminal

switch(config)# fex 100

switch(config-fex)# no hardware N2248TTP-E shared-buffer-size 25000

switch(config-fex)#

Related Commands

Command

Description

fex

Creates a Fabric Extender and enters fabric extender configuration mode.

show fex

Displays all configured Fabric Extender chassis connected to the switch.

show running-config fex

Displays the running configuration for Fabric Extenders.

hardware uplink-pause-no-drop

To configure a pause no-drop class up to a distance of 3000 meters between the Cisco Nexus 2000 Series Fabric Extender and a Cisco Nexus 6000 switch, use the hardware uplink-pause-no-drop command. To revert to the default setting, use the no form of this command.

hardware fex_card_type uplink-pause-no-drop distance [distance-value]

no hardware fex_card_type uplink-pause-no-drop distance [distance-value]

Syntax Description

fex_card_type

Fabric Extender card type. The following Fabric Extender card types are supported:

- N2248TP-E —Fabric Extender 48x1G 4x10G SFP+ Module

- N2248PQ —Fabric Extender 48x10G SFP+ 16x10G SFP+ Module

See the “Usage Guidelines” section for a description of this Fabric Extender.

distance

Specifies the distance between the Fabric Extender and switch.

distance-value

(Optional) Distance in meters. The range is from 300 to 3000.

Command Default

The default distance between a Fabric Extender and the switch is 300 meters.

Command Modes

Fabric Extender configuration mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

The Cisco Nexus N2248TP-E Fabric Extender and the Cisco Nexus N2248PQ Fabric Extender were introduced.

Usage Guidelines

Note This command is supported only on Cisco Nexus 2248TP-E and Cisco Nexus N2248PQ Fabric Extenders.

The Cisco Nexus N2248TP-E Fabric Extender has four 10-Gigabit Ethernet fabric interfaces for its uplink connection to the parent Cisco Nexus switch and 48 1000BASE-T (1-Gigabit) Ethernet host interfaces with small form-factor pluggable (SFP+) interface adapters for its downlink connection to servers or hosts.

The Cisco Nexus 2248PQ Fabric Extender has 48 10-Gigabit Ethernet host interfaces with SFP+ interface adapters and 16 10-Gigabit Ethernet fabric interfaces corresponding to 4 QSFP interface adapters for its uplink connection to the parent switch.

Examples

This example shows how to configure the hardware pause no-drop class up to a distance of 3000 meters between a Cisco Nexus 2248TTP-E Fabric Extender and a switch:

switch# configure terminal

switch(config)# fex 100

switch(config-fex)# hardware N2248TTP-E pause-no-drop distance 3000

switch(config-fex)#

This example shows how to remove the hardware pause no-drop configuration between a Cisco Nexus 2248TTP-E Fabric Extender and a switch:

switch# configure terminal

switch(config)# fex 100

switch(config-fex)# no hardware N2248TTP-E pause-no-drop distance 3000

switch(config-fex)#

Related Commands

Command

Description

fex

Creates a Fabric Extender and enters fabric extender configuration mode.

show fex

Displays all configured Fabric Extender chassis connected to the switch.

show running-config fex

Displays the running configuration for Fabric Extenders.

I Commands

This chapter describes the Cisco NX-OS commands that begin with I that are used to manage a Cisco Nexus 2000 Series Fabric Extender from a Cisco Nexus 6000 switch.

install fex

To perform a nondisruptive preload and upgrade of Fabric Extenders (FEX) which are online with a switch, use the install fex command.

install fex {fex_id | fex_range}

Note You can use either a FEX ID, a FEX range, multiple FEX IDs or FEX ranges, or a combination of both FEX IDs and FEX ranges.

Syntax Description

fex_id

Fabric Extender ID. The FEX ID ranges from 100 to 199.

fex_range

Fabric Extender range. The range is from 100 to 199.

Command Default

None.

Command Modes

EXEC mode.

Command History

Release

Modification

7.1(4)N1(1)

This command was introduced.

Usage Guidelines

We recommend to use the install all command to upgrade the FEX devices along with the switch.

Use the install fex command only when one or more FEX devices fail during a nondisruptive upgrade process executed using the install all command.

The install process executed using the install fex command will display the upgrade failure of that particular FEX devices but will continue the upgrade process for other remaining FEXs.

Note These are the two uses cases for the install fex command:

- For VPC topology, it is recommended to execute the install fex command after upgrading both the switches, and should be executed for FEX devices that failed to upgrade. Although the install fex command can be used after upgrading the first switch, but it is less recommended.

- For straight through single-homed FEX topology, execute the install fex command only after the switch upgrade.

Examples

switch# install fex 120, 130-145

switch#

This example shows how to do the install process for multiple FEX IDs and FEX ranges:

switch# install fex 120, 130-145, 148-155, 199

switch#

Related Commands

Command

Description

show fex

Displays all configured Fabric Extender chassis connected to the switch.

L Commands

This chapter describes the Cisco NX-OS commands that begin with L that are used to manage a Cisco Nexus 2000 Series Fabric Extender from a Cisco Nexus 6000 switch.

locator-led fex

To turn on the locator LED of a Fabric Extender, use the locator-led command. To turn off the locator LED, use the no form of this command.

locator-led fex chassis_ID

no locator-led fex chassis_ID

Syntax Description

chassis_ID

Fabric Extender chassis ID. The range is from 100 to 199.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Usage Guidelines

Use the locator-led command to toggle the locator LED of a Fabric Extender, which allows you to easily identify the machine in a busy data center.

Examples

This example shows how to turn on the locator LED for a specific Fabric Extender chassis:

switch# locator-led fex 100

switch#

This example shows how to turn off the locator beacon LED for a specific Fabric Extender chassis:

switch# no locator-led fex 100

switch#

Related Commands

Command

Description

show fex

Displays all configured Fabric Extender chassis connected to the switch.

show locator-led

Displays the status of the locator LED in Fabric Extender modules.

logging fex

To set the logging alert level for Fabric Extender 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

severity-level

(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:

- 0—emergency: System unusable

- 1—alert: Immediate action needed

- 2—critical: Critical condition—default level

- 3—error: Error condition

- 4—warning: Warning condition

- 5—notification: Normal but significant condition

- 6—informational: Informational message only

- 7—debugging: Appears during debugging only

Command Default

None

Command Modes

Global configuration mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

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

Command

Description

show fex

Displays all configured Fabric Extender chassis connected to the switch.

N Commands

This chapter describes the Cisco NX-OS commands that begin with N that are used to manage a Cisco Nexus 2000 Series Fabric Extender from a Cisco Nexus 6000 series switch.

negotiate auto

To enable the autonegotiation protocol to configure the speed, duplex, and automatic flow-control of the Gigabit Ethernet interface, use the negotiate command in interface configuration mode. To disable automatic negotiation, use the no negotiate auto command.

negotiate auto

no negotiate auto

Syntax Description

This command has no arguments or keywords.

Command Default

None

Command Modes

Interface configuration mode

Command History

Release

Modification

7.3(2)N1(1)

This command was introduced.

Usage Guidelines

The no negotiate auto command is supported only in Cisco Nexus 2248PQ 10GE Fabric Extender, Cisco Nexus 2232PP 10GE Fabric Extender, and Cisco Nexus 2348UPQ 10GE Fabric Extender with 1G-based SFP.

Examples

This example shows how to enable autonegotiation:

switch# configure terminal

switch(config)# interface ethernet 2/2

switch(config-if)# negotiate auto

This example shows how to disable autonegotiation:

switch# configure terminal

switch(config)# interface ethernet 2/2

switch(config-if)# no negotiate auto

Related Commands

Command

Description

show interface

Displays the interface configuration information.

P Commands

This chapter describes the Cisco NX-OS commands that begin with P that are used to manage a Cisco Nexus 2000 Series Fabric Extender from a Cisco Nexus 6000 switch.

pace fex

To introduce delay between 2 Fabric Extenders (FEXs) while coming online, use the pace fex command in the global configuration mode. To unconfigure the FEX pacing time, use the no form of the command.

pace fex 0-3600

no pace fex

Syntax Description

fex

FEX configuration.

0-3600

Specifies the pacing time, in seconds, between the 2 FEXs while coming online.

Command Default

None.

Command Modes

Global configuration mode.

Command History

Release

Modification

7.1(4) N1(1)

This command was introduced.

Usage Guidelines

The default FEX pacing time for Cisco Nexus 5500 series is 30 seconds. If no pace fex command is configured on a switch, the pacing time will be displayed as 0.

Examples

This example shows how to configure FEX pacing time of 40 seconds for a Fabric Extender:

switch(config)# pace fex 40

switch(config)#

Related Commands

Command

Description

show system internal fex info global verbose

Displays the pacing FEX time configured on the switch.

pinning max-links

To specify the number of statically pinned uplinks, use the pinning max-links command. To reset to the default, use the no form of this command.

pinning max-links uplinks

no pinning max-links

Syntax Description

uplinks

Number of uplinks. The range is from 1 to 8. The default is 1.

This command is applicable only if the Fabric Extender is connected to its parent switch using one or more statically pinned fabric interfaces.

Command Default

The default number of uplinks is 1.

Command Modes

Fabric extender configuration mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Usage Guidelines

Use the pinning max-links command when you create a number of pinned fabric interface connections to enable the parent switch to determine a distribution of host interfaces. The host interfaces are divided by the number of uplinks and distributed accordingly.

Caution Changing the value of uplinks is disruptive. All the host interfaces on the Fabric Extender are brought down and back up as the parent switch reassigns its static pinning.

Examples

This example shows how to specify the number of statically pinned uplinks for a Fabric Extender:

switch# configure terminal

switch(config)# fex 101

switch(config-fex)# pinning max-links 4

This example shows how to revert to the uplink count to the default for a Fabric Extender:

switch# configure terminal

switch(config)# fex 101

switch(config-fex)# no pinning max-links

Related Commands

Command

Description

fex

Creates a Fabric Extender and enters fabric extender configuration mode.

fex pinning redistribute

Redistributes the host interfaces on a Fabric Extender.

show fex

Displays all configured Fabric Extender chassis connected to the switch.

provision

To preprovision a module in a chassis slot, use the provision command. To remove a preprovisioned module from a slot, use the no form of this command.

provision model model-name

no provision model [model-name]

Syntax Description

model

Specifies the type of module to be provisioned.

model-name

Module name. The supported modules are as follows:

- N2K-C2148T —Cisco Nexus 2000 Series Fabric Extender 48x1G 4x10G Module

- N2K-C2232P —Cisco Nexus 2000 Series Fabric Extender 32x10G Module

- N2K-C2232TM —Cisco Nexus 2000 Series Fabric Extender 32x10G Module

- N2K-C2248T —Cisco Nexus 2000 Series Fabric Extender 48x1G 4x10G Module

- N2K-N2224TP —Cisco Nexus 2000 Series Fabric Extender 24x1G 2x10G SFP+ Module

- N2248PQ —Cisco Nexus 2000 Series Fabric Extender 48x10G SFP+ 16x10G SFP+ Module

- N55-M16FP —Cisco 16 port Port Fiber Channel Expansion Module 16 x SFP

- N55-M16P —Cisco 16x10-Gigabit Ethernet Expansion Module

- N55-M16UP —Cisco 16x10-Gigabit Flexible Ethernet Expansion Module

- N55-M8P8FP —Cisco 8 Port 1/2/4/8-Gigabit Fibre Channel + 8 Port 10-Gigabit Ethernet Expansion Module

- N5K-M1008 —Cisco 8 Port Fiber Channel Expansion Module 8 x SFP

- N5K-M1060 —Cisco 6 Port Fiber Channel Expansion Module 6 x SFP

- N5K-M1404 —Expansion Module 4 x 10GBase-T LAN, 4 x Fiber Channel

- N5K-M1600 —Cisco 6-port 10 Gigabit Ethernet SFP Module 6 x SFP

Command Default

None

Command Modes

Slot configuration mode

Switch profile configuration mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Usage Guidelines

Use this command to define the modules (line card or Cisco Nexus 2000 Series Fabric Extender) to preprovision. If the card type does not match the card in the slot or the module is not compatible with the chassis, you see the following messages:

ERROR: The card type does not match the card in slot

or

ERROR: This module cannot be configured for this chassis

You can configure features or interfaces (Ethernet, Fibre Channel) on the modules before the modules are inserted in the switch chassis. You can also use this command to manage the configuration of these features or interfaces when the module is offline due to a failure or scheduled downtime. These configurations are applied when the module comes online.

When you preprovision a module by specifying the type of module, platform manager will allow only modules of matching type to come online. If you configure the interfaces for the module without specifying the module type, the configuration is applied when the module comes online, regardless of the module type.

You can preprovision modules and interfaces in a switch profile. The modules and interfaces are preprovisioned when you apply (commit) the switch profile. Once the module is inserted and interfaces are created, the preprovisioning module passes on the configuration to the respective applications before the interfaces come up.

Mutual exclusion is a mechanism where configuration outside the switch profile is not allowed in the switch profile and vice-versa. This requirement is to ensure that configuration in the switch profile is exactly the same on both switches. Preprovisioned configuration is the same as a configuration when the module is online, so mutual exclusion checks would continue to apply normally.

Examples

This example shows how to preprovision a module in slot 2 of the chassis:

switch(config)# slot 2

switch(config-slot)# provision model N5K-M1404

switch(config-slot)#

This example shows how to remove a preprovisioned module from a chassis slot:

switch(config)# slot 2

switch(config-slot)# no provision model N5K-M1404

switch(config-slot)#

This example shows how to remove all preprovisioned modules or line cards from a chassis slot:

switch(config)# slot 2

switch(config-slot)# no provision model

switch(config-slot)#

Related Commands

Command

Description

show module

Displays module information.

show provision

Displays provisioned modules.

show switch-profile

Displays switch profile information.

show running-config exclude-provision

Displays the running configuration excluding the preprovisioned features.

slot

Enables a slot for preprovisioning a module.

switch-profile

Configures a switch profile.

S Commands

This chapter describes the Cisco NX-OS commands that begin with S that are used to manage a Cisco Nexus 2000 Series Fabric Extender from a Cisco Nexus 6000 series switch.

serial

To assign a serial number to a Fabric Extender, use the serial command. To remove the serial number, use the no form of this command.

serial serial_string

no serial

Syntax Description

serial_string

Serial number string for the Fabric Extender. The string is alphanumeric, case sensitive, and has a maximum length of 20 characters.

Command Default

None

Command Modes

Fabric extender configuration mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Usage Guidelines

The serial number string 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 will succeed only if the Fabric Extender reports a matching serial number string.

Caution Configuring a serial number other than that of the given Fabric Extender will force the Fabric Extender offline.

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

Command

Description

fex

Creates a Fabric Extender and enters fabric extender configuration mode.

fex associate

Associates a Fabric Extender to an Ethernet or EtherChannel interface.

show fex

Displays all configured Fabric Extender chassis connected to the switch.

slot

To enable preprovisioning on a slot in a chassis, use the slot command. To disable the slot for preprovisioning, use the no form of this command.

slot slot-number

no slot slot-number

Syntax Description

slot-number

Slot number in the chassis. The range is from 2 to 199.

Command Default

None

Command Modes

Global configuration mode

Configuration synchronization mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Usage Guidelines

Use this command to enable preprovisioning of features or interfaces of a module on a slot in a chassis. Preprovisioning allows you to configure features or interfaces (Ethernet, Fibre Channel) on modules before the modules are inserted in the switch chassis.

Examples

This example shows how to enable a chassis slot for preprovisioning of a module:

switch(config)# slot 2

switch(config-slot)#

This example shows how to disable a chassis slot for preprovisioning of a module:

switch(config)# no slot 2

switch(config)#

Related Commands

Command

Description

port

Configures ports as Ethernet, native Fibre Channel or Fibre Channel over Ethernet (FCoE) ports.

provision

Preprovisions a module in a slot.

show running-config exclude-provision

Displays the running configuration excluding the preprovisioned features.

speed

To configure the port speed, use the speed command. To reset to the default speed, use the no form of this command.

speed {10 | 100 | 1000 | 10000 | 100000 | 40000 | auto [100] }

no speed

Syntax Description

10

Sets the speed to 10 Mbps.

100

Sets the speed to 100 Mbps.

1000

Sets the speed to 1 Gbps.

10000

Sets the speed to 10 Gbps.

100000

Sets the speed to 100 Gbps.

40000

Sets the speed to 40 Gbps.

auto

Auto negotiates the speed of the port.

auto [100]

Auto negotiates the speed to 100 Mbps.

Command Default

The default speed is 10 Gbps.

Command Modes

Interface configuration mode

Command History

Release

Modification

7.3(2)N(1)

The auto 100 keyword was added.

6.0(2)N1(1)

This command was introduced.

Usage Guidelines

From Cisco NX-OS Release 7.3(2)N1(1), the speed 100 command for ports with 1G Cu SFP GLC-T is supported only by Cisco Nexus 2348UPQ 10GE Fabric Extender, and the speed auto 100 command is supported only by Cisco Nexus 2248TP-E Fabric Extender.

Examples

This example shows how to set the speed to 100 Mbps:

switch(config)# interface ethernet 2/2

switch(config-if)# speed 100

This example shows how to set an interface port to automatically negotiate the speed to 100 Mbps:

switch(config)# interface ethernet 2/2

switch(config-if)# speed auto 100

Related Commands

Command

Description

show interface

Displays the interface configuration information.

switchport mode fex-fabric

To set the interface type to be an uplink port for a Fabric Extender, use the switchport mode fex-fabric command.

switchport mode fex-fabric

no switchport mode fex-fabric

Syntax Description

This command has no arguments or keywords.

Command Default

None

Command Modes

Interface configuration mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

This example shows how to set an Ethernet interface to be an uplink port for a Fabric Extender:

switch# configure terminal

switch(config)# interface ethernet 1/40

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

This example shows how to set an EtherChannel interface to be an uplink port for a Fabric Extender:

switch# configure terminal

switch(config)# interface port-channel 4

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

Related Commands

Command

Description

fex associate

Associates a Fabric Extender to an Ethernet or EtherChannel interface.

show fex

Displays all configured Fabric Extender chassis connected to the switch.

Show Commands

This chapter describes the Cisco NX-OS show commands used to manage a Cisco Nexus 2000 Series Fabric Extender from a Cisco Nexus 6000 switch.

show diagnostic result fex

To display the results from the diagnostic tests for a Fabric Extender chassis, use the show diagnostic result fex command.

show diagnostic result fex chassis_ID

Syntax Description

chassis_ID

Fabric Extender chassis ID. The chassis ID range is from 100 to 199.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

show environment fex

To display the environmental sensor status, use the show environment fex command.

show environment fex {all | chassis_ID} [temperature | power | fan]

Syntax Description

all

Displays information for all Fabric Extender chassis.

chassis_ID

Fabric Extender chassis ID. The chassis ID range is from 100 to 199.

temperature

(Optional) Displays temperature sensor information.

power

(Optional) Displays power capacity and power distribution information.

fan

(Optional) Displays fan information.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

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

chassis_ID

(Optional) Fabric Extender chassis ID. The chassis ID range is from 100 to 199.

detail

(Optional) Displays a detailed listing.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

switch# show fex 111

FEX: 111 Description: FEX111 state: Online

FEX version: 6.0(2)N1(1) [Switch version: 6.0(2)N1(1)]

Extender Serial: SSI15450FZS

Extender Model: N2K-C2248TP-1GE, Part No: 73-13232-01

Pinning-mode: static Max-links: 1

Fabric port for control traffic: Eth1/2/3

FCoE Admin: false

FCoE Oper: true

FCoE FEX AA Configured: false

Fabric interface state:

Po113 - Interface Up. State: Active

Eth1/2/3 - Interface Up. State: Active

Eth1/2/4 - Interface Up. State: Active

Eth1/3/3 - Interface Down. State: Configured

Eth1/4/4 - Interface Down. State: Configuredswitch#

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

switch# show fex 111 detail

FEX: 111 Description: FEX111 state: Online

FEX version: 6.0(2)N1(1) [Switch version: 6.0(2)N1(1)]

FEX Interim version: 6.0(2)N1(0.365)

Switch Interim version: 6.0(2)N1(0.365)

Extender Serial: SSI15450FZS

Extender Model: N2K-C2248TP-1GE, Part No: 73-13232-01

Card Id: 99, Mac Addr: a4:56:30:0b:01:42, Num Macs: 64

Module Sw Gen: 12594 [Switch Sw Gen: 21]

post level: complete

pinning-mode: static Max-links: 1

Fabric port for control traffic: Eth1/2/3

FCoE Admin: false

FCoE Oper: true

FCoE FEX AA Configured: false

Fabric interface state:

Po113 - Interface Up. State: Active

Eth1/2/3 - Interface Up. State: Active

Eth1/2/4 - Interface Up. State: Active

Eth1/3/3 - Interface Down. State: Configured

Eth1/4/4 - Interface Down. State: Configured

Fex Port State Fabric Port

Eth111/1/1 Up Po113

Eth111/1/2 Up Po113

Eth111/1/3 Down None

Eth111/1/4 Down None

Eth111/1/5 Down None

Eth111/1/6 Down Po113

Eth111/1/7 Down Po113

Eth111/1/8 Down Po113

Eth111/1/9 Down Po113

Eth111/1/10 Down Po113

Eth111/1/11 Down Po113

Eth111/1/12 Down Po113

Eth111/1/13 Down Po113

Eth111/1/14 Down Po113

Eth111/1/15 Down Po113

Eth111/1/16 Down Po113

Eth111/1/17 Down Po113

Eth111/1/18 Down Po113

Eth111/1/19 Down Po113

Eth111/1/20 Down Po113

Eth111/1/21 Down Po113

Eth111/1/22 Down Po113

Eth111/1/23 Down Po113

Eth111/1/24 Down Po113

Eth111/1/25 Down Po113

Eth111/1/26 Down Po113

Eth111/1/27 Down Po113

Eth111/1/28 Down Po113

Eth111/1/29 Down Po113

Eth111/1/30 Down Po113

Eth111/1/31 Down Po113

Eth111/1/32 Down Po113

Eth111/1/33 Down Po113

Eth111/1/34 Down Po113

Eth111/1/35 Down Po113

Eth111/1/36 Down Po113

Eth111/1/37 Down Po113

Eth111/1/38 Down Po113

Eth111/1/39 Down Po113

Eth111/1/40 Down Po113

Eth111/1/41 Down Po113

Eth111/1/42 Down Po113

Eth111/1/43 Down Po113

Eth111/1/44 Down Po113

Eth111/1/45 Down Po113

Eth111/1/46 Down Po113

Eth111/1/47 Down Po113

Eth111/1/48 Down Po113

Logs:

01/01/2013 22:01:14.276559: Module register received

01/01/2013 22:01:14.279440: Registration response sent

01/01/2013 22:01:14.452868: create module inserted event.

01/01/2013 22:01:14.453798: Module Online Sequence

01/01/2013 22:01:19.223358: Module Online

switch#

Related Commands

Command

Description

fex

Creates a Fabric Extender and enters fabric extender configuration mode.

show fex detail

Syntax Description

This command has no arguments or keywords.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

This example shows how to display detailed information about all attached Fabric Extender chassis:

switch# show fex detail

FEX: 111 Description: FEX111 state: Online

FEX version: 6.0(2)N1(1) [Switch version: 6.0(2)N1(1)]

FEX Interim version: 6.0(2)N1(0.365)

Switch Interim version: 6.0(2)N1(0.365)

Extender Serial: SSI15450FZS

Extender Model: N2K-C2248TP-1GE, Part No: 73-13232-01

Card Id: 99, Mac Addr: a4:56:30:0b:01:42, Num Macs: 64

Module Sw Gen: 12594 [Switch Sw Gen: 21]

post level: complete

pinning-mode: static Max-links: 1

Fabric port for control traffic: Eth1/2/3

FCoE Admin: false

FCoE Oper: true

FCoE FEX AA Configured: false

Fabric interface state:

Po113 - Interface Up. State: Active

Eth1/2/3 - Interface Up. State: Active

Eth1/2/4 - Interface Up. State: Active

Eth1/3/3 - Interface Down. State: Configured

Eth1/4/4 - Interface Down. State: Configured

Fex Port State Fabric Port

Eth111/1/1 Up Po113

Eth111/1/2 Up Po113

Eth111/1/3 Down None

Eth111/1/4 Down None

Eth111/1/5 Down None

Eth111/1/6 Up Po113

Eth111/1/7 Up Po113

Eth111/1/8 Up Po113

Eth111/1/9 Up Po113

Eth111/1/10 Up Po113

Eth111/1/11 Up Po113

Eth111/1/12 Up Po113

Eth111/1/13 Up Po113

Eth111/1/14 Up Po113

Eth111/1/15 Up Po113

Eth111/1/16 Up Po113

Eth111/1/17 Up Po113

Eth111/1/18 Up Po113

Eth111/1/19 Up Po113

Eth111/1/20 Up Po113

Eth111/1/21 Up Po113

Eth111/1/22 Up Po113

Eth111/1/23 Up Po113

Eth111/1/24 Up Po113

Eth111/1/25 Up Po113

Eth111/1/26 Up Po113

Eth111/1/27 Up Po113

Eth111/1/28 Up Po113

Eth111/1/29 Up Po113

Eth111/1/30 Up Po113

Eth111/1/31 Up Po113

Eth111/1/32 Up Po113

Eth111/1/33 Up Po113

Eth111/1/34 Up Po113

Eth111/1/35 Up Po113

Eth111/1/36 Up Po113

Eth111/1/37 Up Po113

Eth111/1/38 Up Po113

Eth111/1/39 Up Po113

Eth111/1/40 Up Po113

Eth111/1/41 Up Po113

Eth111/1/42 Up Po113

Eth111/1/43 Up Po113

Eth111/1/44 Up Po113

Eth111/1/45 Up Po113

Eth111/1/46 Up Po113

Eth111/1/47 Up Po113

Eth111/1/48 Up Po113

Logs:

01/01/2013 22:01:14.276559: Module register received

01/01/2013 22:01:14.279440: Registration response sent

01/01/2013 22:01:14.452868: create module inserted event.

01/01/2013 22:01:14.453798: Module Online Sequence

01/01/2013 22:01:19.223358: Module Online

switch#

Related Commands

Command

Description

fex

Creates a Fabric Extender and enters fabric extender configuration mode.

show fex

Displays all configured Fabric Extender chassis connected to the switch.

show fex chassis_ID transceiver [calibration | detail]

Syntax Description

chassis_ID

Fabric Extender chassis ID. The chassis ID range is from 100 to 199.

calibration

(Optional) Displays detailed calibration information about the transceiver.

detail

(Optional) Displays detailed diagnostic information about the transceiver.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

show fex version

To display the version information about a Fabric Extender, use the show fex version command.

show fex chassis_ID version

Syntax Description

chassis_ID

Fabric Extender chassis ID. The chassis ID range is from 100 to 199.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

show interface fex-fabric

To display all Fabric Extender fabric interfaces, use the show interface fex-fabric command.

show interface fex-fabric

Syntax Description

This command has no arguments or keywords.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

This example shows how to display all Fabric Extender fabric interfaces:

switch# show interface fex-fabric

Fabric Fabric Fex FEX

Fex Port Port State Uplink Model Serial

---------------------------------------------------------------

105 Eth1/5 Active 5 N2K-C2232P-10GE JAF1331AKBM

105 Eth1/6 Active 6 N2K-C2232P-10GE JAF1331AKBM

105 Eth1/7 Active 8 N2K-C2232P-10GE JAF1331AKBM

105 Eth1/8 Active 7 N2K-C2232P-10GE JAF1331AKBM

102 Eth1/17 Active 1 N5K-C5110T-BF-1GE JAF1241BLHQ

102 Eth1/18 Configured 0

102 Eth1/19 Active 3 N5K-C5110T-BF-1GE JAF1241BLHQ

102 Eth1/20 Active 4 N5K-C5110T-BF-1GE JAF1241BLHQ

100 Eth3/3 Active 1 N5K-C5110T-BF-1GE JAF1237ABSE

100 Eth3/4 Active 2 N5K-C5110T-BF-1GE JAF1237ABSE

101 Eth3/5 Active 1 N2K-C2248TP-1GE JAF11223333

101 Eth3/6 Active 2 N2K-C2248TP-1GE JAF11223333

switch#

Related Commands

Command

Description

show fex

Displays all configured Fabric Extender chassis connected to the switch.

show interface interface fex-intf

Syntax Description

interface

Ethernet or EtherChannel interface.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

switch# show interface port-channel 1 fex-intf

Related Commands

Command

Description

show fex

Displays all configured Fabric Extender chassis connected to the switch.

show interface transceiver fex-fabric [calibration | detail]

Syntax Description

calibration

(Optional) Displays detailed calibration information about the transceiver.

detail

(Optional) Displays detailed diagnostic information about the transceiver.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

show inventory fex

To display the physical inventory of a Fabric Extender, such as the name, description, and volume ID, use the show inventory fex command.

show inventory fex chassis_ID

Syntax Description

chassis_ID

Fabric Extender chassis ID. The chassis ID range is from 100 to 199.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

show locator-led

To display the status of the locator LED in a Fabric Extender, use the show locator-led command.

show locator-led status

Syntax Description

status

Displays the status of the locator LED in a Fabric Extender module.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Usage Guidelines

Use the locator-led command to toggle the locator LED of a Fabric Extender.

Examples

This example shows how to display the modules that have the locator LED set to off or on:

switch# show locator-led status

Component Locator LED Status

-----------------------------------

FEX 100 off

FEX 101 off

FEX 102 off

FEX 103 off

FEX 105 off

switch#

Related Commands

Command

Description

locator-led

Turns on the locator LED of a Fabric Extender chassis.

show fex

Displays all configured Fabric Extender chassis connected to the switch.

show module fex [all | chassis_ID]

Syntax Description

chassis_ID

Fabric Extender chassis ID. The chassis ID range is from 100 to 199.

all

Displays information about all Fabric Extender modules.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

switch# show module fex 100

FEX Mod Ports Card Type Model Status.

--- --- ----- ---------------------------------- ------------------ -----------

100 1 48 Fabric Extender 48x1GE Module N5K-C5110T-BF-1GE present

FEX Mod Sw Hw World-Wide-Name(s) (WWN)

--- --- -------------- ------ -----------------------------------------------

100 1 4.2(1)N1(1) 0.0 --

FEX Mod MAC-Address(es) Serial-Num

--- --- -------------------------------------- ----------

100 1 000d.ecb1.1300 to 000d.ecb1.132f JAF1237ABSE

switch#

Related Commands

Command

Description

show fex

Displays all configured Fabric Extender chassis connected to the switch.

show provision

To display information about provision, use the show provision command.

show provision failed-config slot-number

Syntax Description

failed-config

Displays the configuration that failed to be applied to the slot.

slot-number

Slot number in the chassis. The range is from 2 to 199.

Command Default

None

Command Modes

EXEC mode

Configuration synchronization mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

Preprovisions a module in a slot.

show running-config exclude-provision

Displays the running configuration excluding the preprovisioned features.

slot

show queuing interface

To display the queuing information of interfaces, use the show queuing interface command.

show queuing interface [ethernet slot-chassis-no/port-slot-no/port-no]

Syntax Description

ethernet

(Optional) Specifies that queuing information be displayed for an Ethernet interface or a Fabric Extender.

slot-chassis-no

Slot number of the Ethernet interface or chassis ID of the Fabric Extender. The range is from 1 to 255.

port-slot-no

Port number of the Ethernet interface or the remote slot ID of the Fabric Extender. The range is from 1 to 128.

port-no

Port number of the Fabric Extender. The range is from 1 to 48.

Command Default

Displays the queuing information for all interfaces.

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

switch# show queuing interface ethernet 1/4

Interface Ethernet1/4 TX Queuing

qos-group sched-type oper-bandwidth

0 WRR 50

1 WRR 50

5 priority 0

Interface Ethernet1/4 RX Queuing

qos-group 0:

q-size: 102400, MTU: 1538

drop-type: drop, xon: 0, xoff: 640

Statistics:

Pkts received over the port : 1

Ucast pkts sent to the cross-bar : 0

Mcast pkts sent to the cross-bar : 1

Ucast pkts received from the cross-bar : 1577841

Pkts sent to the port : 1577841

Pkts discarded on ingress : 0

Per-priority-pause status : Rx (Inactive), Tx (Inactive)

qos-group 1:

q-size: 76800, MTU: 2240

drop-type: no-drop, xon: 128, xoff: 240

Statistics:

Pkts received over the port : 0

Ucast pkts sent to the cross-bar : 0

Mcast pkts sent to the cross-bar : 0

Ucast pkts received from the cross-bar : 0

Pkts sent to the port : 0

Pkts discarded on ingress : 0

Per-priority-pause status : Rx (Inactive), Tx (Inactive)

qos-group 5:

q-size: 122880, MTU: 1538

drop-type: drop, xon: 0, xoff: 768

Statistics:

Pkts received over the port : 0

Ucast pkts sent to the cross-bar : 0

Mcast pkts sent to the cross-bar : 0

Ucast pkts received from the cross-bar : 0

Pkts sent to the port : 1

Pkts discarded on ingress : 0

Per-priority-pause status : Rx (Inactive), Tx (Inactive)

switch#

Table 1 describes the significant fields shown in the display.

Table 1 show queuing interface Field Descriptions

Field

Description

Ethernet ...

Ethernet interface information.

qoS-group

Information about QoS groups configured on the switch.

sched-type

Type of schedule.

WRR

Weighted round robin(WRR). Queue eight for scheduling.

Priority

Priority of the queue.

q-size

Queue size.

drop-type

Queue drop type can be either drop or no-drop.

MTU

Maximum transmit unit (MTU) for the queue.

Xon

Transmission on at this threshold.

Xoff

Transmission off at this threshold.

Buffer threshold

Buffer threshold value for the interface.

Queue limit

Queue limit value for the interface.

Related Commands

Command

Description

hardware buffer-threshold

Configures the hardware buffer threshold.

hardware queue-limit

Configures the hardware queue limit.

show fex

show running-config exclude-provision

To display the running configuration without the configuration for offline preprovisioned interfaces, use the show running-config exclude-provision command.

show running-config exclude-provision

Syntax Description

This command has no arguments or keywords.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

This example shows how to display the running configuration without the offline preprovisioned interfaces:

switch# show running-config exclude-provision

!Command: show running-config exclude-provision

!Time: Mon Jan 6 08:10:16 2013

version 6.0(2)N1(1)

feature fcoe

feature telnet

feature tacacs+

cfs ipv4 distribute

cfs eth distribute

feature udld

feature interface-vlan

feature lacp

feature vpc

feature lldp

feature vtp

feature fex

username admin password 5 $1$wmFN7Wly$/pjqx1DfAkCCAg/KyxbUz/ role network-admin

username install password 5 ! role network-admin

username praveena password 5 ! role network-operator

no password strength-check

ip domain-lookup

ip domain-lookup

tacacs-server host 192.168.131.54 key 7 "wawy1234"

tacacs-server host 192.168.131.37

tacacs-server host 192.168.131.37 test username user1

aaa group server tacacs+ t1

server 192.168.131.54

aaa group server tacacs+ tacacs

radius-server host 192.168.128.5 key 7 "KkwyCet" authentication accounting

aaa group server radius r1

server 192.168.128.5

hostname BEND-2

vlan dot1Q tag native

logging event link-status default

logging event trunk-status default

no service recover-errdisable

errdisable recovery interval 600

no errdisable detect cause link-flap

errdisable recovery cause link-flap

errdisable recovery cause udld

--More--

<--output truncated-->

switch#

Related Commands

Command

Description

copy running-config startup-config

Copies the running configuration to the startup configuration.

provision

Preprovisions a module in a slot.

show provision

Displays the preprovisioned module information.

show startup-config exclude-provision

Displays the startup configuration without the preprovisioning information for offline interfaces.

slot

Configures a chassis slot for a predefined module.

show running-config fex

To display the running configuration for Fabric Extenders (FEXs), use the show running-config fex command.

show running-config fex [all]

Syntax Description

all

(Optional) Displays FEX information including default settings.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

Configures the hardware buffer threshold.

hardware queue-limit

Configures the hardware queue limit.

show fex

show sprom fex

To display information about the SPROM, use the show sprom fex command.

show sprom fex {all | chassis_ID {all | backplane | powersupply module_no}}

Syntax Description

chassis_ID

Fabric Extender chassis ID. The chassis ID range is from 100 to 199.

all

Displays all SPROM content for a specific Fabric Extender.

backplane

Displays the backplane SPROM content for a specific Fabric Extender.

powersupply

Displays the power supply SPROM content for a specific Fabric Extender.

module_no

Power supply module number for a specific Fabric Extender. The range is from 1 to 2.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

switch# show sprom fex 100 powersupply 1

DISPLAY FEX 100 power-supply 1 sprom contents:

Common block:

Block Signature : 0xabab

Block Version : 3

Block Length : 124

Block Checksum : 0x15fc

EEPROM Size : 124

Block Count : 1

FRU Major Type : 0xab01

FRU Minor Type : 0x1

OEM String : Cisco Systems, Inc.

Product Number : N5K-PAC-200W

Serial Number : PAC12473L17

Part Number : 341-0335-01

Part Revision : 01

CLEI Code : COUPADSBAA

VID : 00V0

snmpOID : 0.0.0.0.0.0.0.0

H/W Version : 0.1

Current : 1667

RMA Code : 0-0-0-0

switch#

Related Commands

Command

Description

show fex

Displays all configured Fabric Extender chassis connected to the switch.

show startup-config exclude-provision

To display the startup configuration that excludes the configuration for offline preprovisioned interfaces, use the show startup-config exclude-provision command.

show startup-config exclude-provision

Syntax Description

This command has no arguments or keywords.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

This example shows how to display the startup configuration without the offline preprovisioned interfaces:

switch# show startup-config exclude-provision

Related Commands

Command

Description

provision

Preprovisions a module in a slot.

show provision

Displays the preprovisioned module information.

show running-config exclude-provision

Displays the running configuration excluding the preprovisioned features.

slot

Configures a chassis slot for a predefined module.

show system reset-reason fex

To display the reason for the last reset of the Fabric Extender, use the show system reset-reason fex command.

show system reset-reason fex chassis_ID

Syntax Description

chassis_ID

Fabric Extender chassis ID. The chassis ID range is from 100 to 199.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

Displays all configured Fabric Extender chassis connected to the switch.

show system internal fex copy

To copy the debug logs from an internal fabric extender (FEX) to the bootfalsh on a switch, use the show system internal fex command in the privileged exec mode (#).

show system internal fex copy logs

Syntax Description

copy

Copies from FEX to switch.

logs

Copies the logs from FEX to switch.

Command Default

None.

Command Modes

Privileged EXEC mode.

Command History

Release

Modification

7.1(4)N1(1)

This command was introduced.

Usage Guidelines

To view the debug log files from the bootflash execute the switch# dir command.

Examples

This example shows how to copy the debug logs an internal Fabric Extender to the bootflash on a switch:

switch# show system internal fex copy logs

switch# 2016 Jul 18 11:39:09 N128-A %$ VDC-1 %$ %FEX-5-FEX_LOG_COPY: Logs debugLogs_Fexid_130.tar copied to bootflash

2016 Jul 18 11:39:09 N128-A %$ VDC-1 %$ %FEX-5-FEX_LOG_COPY: Logs debugLogs_Fexid_140.tar copied to bootflash

2016 Jul 18 11:39:11 N128-A %$ VDC-1 %$ %FEX-5-FEX_LOG_COPY: Logs debugLogs_Fexid_125.tar copied to bootflash

2016 Jul 18 11:39:11 N128-A %$ VDC-1 %$ %FEX-5-FEX_LOG_COPY: Logs debugLogs_Fexid_150.tar copied to bootflash

2016 Jul 18 11:39:14 N128-A %$ VDC-1 %$ %FWM-2-STM_LEARNING_RE_ENABLE: Re enabling dynamic learning on all interfaces

2016 Jul 18 11:39:16 N128-A %$ VDC-1 %$ %FWM-2-STM_LOOP_DETECT: Loops detected in the network for mac 001b.2198.9209 among ports Eth140/1/3 and Eth140/1/4 vlan 1 - Disabling dynamic learn notifications for 180 seconds

switch#

This example shows how to view the debug log files from the bootflash:

switch# dir

4096 Apr 27 11:46:24 2016 .maintenance-mode/

296960 Jul 18 11:39:11 2016 debugLogs_Fexid_125.tar

217088 Jul 18 11:39:09 2016 debugLogs_Fexid_130.tar

297984 Jul 18 11:39:09 2016 debugLogs_Fexid_140.tar

276480 Jul 18 11:39:11 2016 debugLogs_Fexid_150.tar

116310 Aug 31 17:50:34 2015 installer_deta

Related Commands

Command

Description

show fex

Displays all configured fabric extender chassis connected to the switch.

show system internal fex info global verbose

Syntax Description

global

Displays internal FEX information on the switch.

verbose

Checks the pacing time.

Command Default

None.

Command Modes

Global configuration mode.

Command History

Release

Modification

7.1(4)N1(1)

This command was introduced.

Examples

Command

Description

show fex

Displays all configured Fabric Extender chassis connected to the switch.

show version fex

To display the software version information about a Fabric Extender, use the show version fex command.

show version fex chassis_ID

Syntax Description

chassis_ID

Fabric Extender chassis ID. The chassis ID range is from 100 to 199.

Command Default

None

Command Modes

EXEC mode

Command History

Release

Modification

6.0(2)N1(1)

This command was introduced.

Examples

T Commands

This chapter describes the Cisco NX-OS commands that begin with T that are used to manage a Cisco Nexus 2000 Series Fabric Extender from a Cisco Nexus 6000 switch.

type

To set the Fabric Extender card type to a specific card, use the type command. To revert to the default FEX card, use the no form of this command.

type fex_card_type

no type

Syntax Description

fex_card_type

Fabric Extender card type. The following Fabric Extender card types are supported:

- N2148T —Fabric Extender 48x1G 4x10G SFP+ Module

- N2224TP —Fabric Extender 24x1G 2x10G SFP+ Module

- N2232P —Fabric Extender 32x10G SFP+ 8x10G SFP+ Module

- N2232TM —Fabric Extender 32x10GBase-T 8x10G SFP+ Module

- N2248T —Fabric Extender 48x1G 4x10G SFP+ Module

- N2248PQ —Fabric Extender 48x10G SFP+ 16x10G SFP+ Module

Command Default

None

Command Modes

Fabric extender configuration mode

Command History

Release

Modification

4.2(1)N1(1)

This command was introduced.

Usage Guidelines

The following Cisco Nexus 2000 Series Fabric Extenders are supported on a Cisco Nexus 6000 Series switch:

- Cisco Nexus 2148T Fabric Extender—It has four 10-Gigabit Ethernet fabric interfaces for its uplink connection to the parent Cisco Nexus switch and 48 1000BASE-T (1-Gigabit) Ethernet host interfaces for its downlink connection to servers or hosts.

- 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 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 2232P 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 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—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 switch and 32 10-Gigabit BASE-T Ethernet fabric interfaces for its downlink connection to servers or hosts.

- Cisco Nexus 2248T Fabric Extender—It has four 10-Gigabit Ethernet fabric interfaces with SFP+ interface adapters for its uplink connection to the parent Cisco Nexus switch and 48 1000BASE-T (1-Gigabit) Ethernet host interfaces for its downlink connection to servers or hosts.

- Cisco Nexus 2248PQ Fabric Extender—It has 48 10-Gigabit Ethernet host interfaces with SFP+ interface adapters and 16 10-Gigabit Ethernet fabric interfaces corresponding to 4 QSFP interface adapters for its uplink connection to the parent switch.

Examples

This example shows how to configure the Fabric Extender card:

switch(config)# fex 100

switch(config-fex)# type N2148T

switch(config-fex)#

Related Commands

Command

Description

fex

Creates a Fabric Extender and enters fabric extender configuration mode.

show fex

Displays all configured Fabric Extender chassis connected to the switch.

Preface

This preface describes the audience, organization, and conventions of the Cisco Nexus 6000 Series NX-OS Fabric Extender Command Reference. It also provides information on how to obtain related documentation.

This preface includes the following sections:

- Audience

- Document Conventions

- Obtaining Documentation and Submitting a Service Request

Audience

This publication is for experienced users who configure and maintain Cisco NX-OS devices.

Document Conventions

Command descriptions use these conventions:

Convention

Description

boldface font

Commands and keywords are in boldface.

italic font

Arguments for which you supply values are in italics.

[ ]

Elements in square brackets are optional.

{x | y | z}

Alternative keywords are grouped in braces and separated by vertical bars.

[ x | y | z ]

Optional alternative keywords are grouped in brackets and separated by vertical bars.

string

A nonquoted set of characters. Do not use quotation marks around the string or the string will include the quotation marks.

Screen examples use these conventions:

screen font

Terminal sessions and information that the switch displays are in screen font.

boldface screen font

Information you must enter is in boldface screen font.

italic screen font

Arguments for which you supply values are in italic screen font.

< >

Nonprinting characters, such as passwords, are in angle brackets.

[ ]

Default responses to system prompts are in square brackets.

!, #

An exclamation point (!) or a pound sign (#) at the beginning of a line of code indicates a comment line.

This document uses the following conventions:

Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the manual.

Caution Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data.

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a service request, and gathering additional information, see What’s New in Cisco Product Documentation.

To receive new and revised Cisco technical content directly to your desktop, you can subscribe to the What’s New in Cisco Product Documentation RSS feed. The RSS feeds are a free service.