Table Of Contents

N Commands

native-autonomous-fabric-num

node

npiv enable

nport pwwn

npv enable

npv auto-load-balance disruptive

npv traffic-map server-interface

ntp

ntp abort

ntp commit

ntp distribute

ntp sync-retry

nwwn (DPVM database configuration submode)

nwwn (SAN extension configuration mode)

N Commands

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The commands in this chapter apply to the Cisco MDS 9000 Family of multilayer directors and fabric switches. All commands are shown here in alphabetical order regardless of command mode. See "About the CLI Command Modes" section on page 1-3 to determine the appropriate mode for each command. For more information, refer to the Cisco MDS 9000 Family CLI Configuration Guide.

native-autonomous-fabric-num

To create an IVR persistent FC ID database entry, use the native-autonomous-fabric-num command in fcdomain database configuration submode. To delete all IVR persistent FC ID database entries for a given AFID and VSAN, use the no form of the command.

native-autonomous-fabric-num afid-num native-vsan vsan-id domain domain-id

no native-autonomous-fabric-num afid-num native-vsan vsan-id domain domain-id

Syntax Description

afid-num	Specifies the native AFID. The range is 1 to 64.
native-vsan vsan-id	Specifies the native VSAN ID. The range is 1 to 4093.
domain domain-id	Specifies the domain ID. The range is 1 to 239.

Defaults

None.

Command Modes

fcdomain database configuration submode.

Command History

Release	Modification
2.1(2)	This command was introduced.

Usage Guidelines

There is only one domain ID associated with an AFID and VSAN. If you change the domain ID, all the associated FC ID mapping records are also changed.

Examples

The following example shows how to create an entry for a native AFID, VSAN, and domain:

switch# config t

switch(config)# ivr fcdomain database autonomous-fabric-num 10 vsan 20

switch(config-fcdomain)# native-autonomous-fabric-num 20 native-vsan 30 domain 15

switch(config-fcdomain-fcid)#

The following example shows how to remove all entries for a native AFID and VSAN:

switch# config t

switch(config)# ivr fcdomain database autonomous-fabric-num 10 vsan 20

switch(config-fcdomain)# no native-autonomous-fabric-num 20 native-vsan 30

Related Commands

Command	Description
ivr fcdomain database autonomous-fabric-num	Creates IVR persistent FC IDs.
show ivr fcdomain database	Displays IVR fcdomain database entry information.

node

To configure Cisco SME switch, use the node command. To disable this command, use the no form of the command.

node {local | {A.B.C.D | X:X::X /n| DNS name}}

no node {local | {A.B.C.D | X:X::X /n| DNS name}}

Syntax Description

local	Configures the local switch.
A.B.C.D	Specifies the IP address of the remote switch in IPv4 format.
X:X::X/n	Specifies the IP address of the remote switch in IPv6 format.
DNS name	Specifies the name of the remote database.

Defaults

None.

Command Modes

Cisco SME cluster configuration submode.

Command History

Release	Modification
3.2(2)	This command was introduced.

Usage Guidelines

None.

Examples

The following example adds the Cisco SME interface from a local switch:

switch# config t

switch(config)# sme cluster c1

switch(config-sme-cl)# node local

switch(config-sme-cl-node)#

The following example adds the Cisco SME interface from a remote switch:

switch# config t

switch(config))# sme cluster c1

switch(config-sme-cl)# node 171.71.23.33

switch(config-sme-cl-node)#

Related Commands

Command	Description
show sme cluster cluster name node	Displays Cisco SME node information about a local or remote switch.

npiv enable

To enable N port identifier virtualization (NPIV) for all VSANs on a switch, use the npiv enable command in configuration mode. To disable NPIV, use the no form of the command.

npiv enable

no npiv enable

Syntax Description

This command has no arguments or keywords.

Defaults

Disabled.

Command Modes

Configuration mode.

Command History

Release	Modification
3.0(1)	This command was introduced.

Usage Guidelines

NPIV provides a means to assign multiple port IDs to a single N Port. This feature allows multiple applications on the N port to use different identifiers and allows access control, zoning, and port security to be implemented at the application level.

You must globally enable NPIV for all VSANs on the MDS switch to allow the NPIV-enabled applications to use multiple N port identifiers.

---

Note All of the N Port Identifiers are allocated in the same VSAN.

---

Examples

The following example enables NPIV for all VSANs on the switch:

switch# config terminal

switch(config)# npiv enable

The following example disables NPIV for all VSANs on the switch:

switch(config)# no npiv enable

Related Commands

Command	Description
show interface	Displays interface configurations.

nport pwwn

To configure the N Port pWWN for the SAN extension tuner, use the nport pwwn command in SAN extension configuration mode. To revert to the default value, use the no form of the command.

nport pwwn pwwn-id vsan vsan-id interface gigabitethernet slot/port

no nport pwwn pwwn-id vsan vsan-id interface gigabitethernet slot/port

Syntax Description

pwwn-id	Specifies the port WWN ID. The format is hh:hh:hh:hh:hh:hh:hh:hh, where h is a hexadecimal number.
vsan vsan-id	Specifies the VSAN ID. The range is 1 to 4093.
interface gigabitethernet slot/port	Specifies the Gigabit Ethernet interface slot and port.

Defaults

None.

Command Modes

SAN extension configuration mode.

Command History

Release	Modification
2.0(x)	This command was introduced.

Usage Guidelines

None.

Examples

The following example shows how to add an entry to the SAN extension tuner database:

switch# san-ext-tuner

switch(san-ext)# nport pwwn 11:22:33:44:55:66:77:88 vsan 1 interface gigabitethernet 1/1

Related Commands

Command	Description
san-ext-tuner	Enters SAN extension configuration mode.
show san-ext-tuner	Shows SAN extension tuner information.

npv enable

To enable N port virtualization (NPV), use the npv enable command in configuration mode. To disable this feature, use the no form of the command.

npv enable

no npv enable

Syntax Description

This command has no other arguments or keywords.

Defaults

None.

Command Modes

Configuration mode.

Command History

Release	Modification
3.2(1)	This command was introduced.

Usage Guidelines

When NPV is enabled, all configurations are erased and the switch is rebooted. The switch restarts in the NPV mode. All configuration and verification commands for NPV are available only when NPV is enabled on the switch. When you disable this feature, all related configurations are automatically erased and the switch is rebooted.

Examples

The following example shows how to enable NPV:

switch# config

switch(config)# npv enable 

Related Commands

Command	Description
show npv status	Displays the NPV current status.

npv auto-load-balance disruptive

To enable autoload balance disruptive, use the npv auto-load-balance disruptive command in configuration mode. To disable this feature, use the no form of the command.

npv auto load-balancing disruptive

no npv auto load-balancing disruptive

Syntax Description

This command has no arguments or keywords.

Defaults

None.

Command Modes

Configuration mode.

Command History

Release	Modification
3.3(1)	This command was introduced.

Usage Guidelines

None.

Examples

The following example shows how to enable autoload balance disruptive:

switch(config)# npv auto-load-balance disruptive

Enabling this feature may flap the server intefaces whenever load is not in a ba

lanced state. This process may result in traffic disruption. Do you want to proc

eed? (y/n):

Please enter y or n Y

switch(config)# 

Related Commands

Command	Description
npv traffic-map server interface	Configures server interface traffic engineering.

npv traffic-map server-interface

To configure the server interface based traffic engineering, use the npv traffic-map server-interface command in configuration mode. To revert to the default value, use the no form of the command.

npv traffic-map server-interface if -range external-interface if-range

no npv traffic-map server-interface if-range external-interface if-range

Syntax Description

if-range

Range may vary from 1 to 1.

Defaults

None.

Command Modes

Configuration mode.

Command History

Release	Modification
3.3(1a)	This command was introduced.

Usage Guidelines

None.

Examples

The following example shows how to configure NPV traffic map server interface:

switch(config)# npv traffic-map server-interface fc1/1 external-interface fc1/2

switch(config)# npv traffic-map server-interface fc1/4-5 external-interface fc1/6-7

switch(config)# no npv traffic-map server-interface fc1/4-5 external-interface fc1/6-7

switch(config)# no npv traffic-map server-interface fc1/1 external-interface fc1/2

switch(config)#

Related Commands

Command	Description
show npv-traffic-map	Displays information about the NPV traffic map.

ntp

To configure NTP settings on the switch, use the ntp command in configuration mode.

ntp {peer hostname | server | tstamp-check}

Syntax Description

peer hostname	The hostname and IP address of the NTP peer (Maximum Size is 80).
server	The hostname and IP address of the NTP server (Maximum Size is 80).
tstamp-check	Enables or disables the Timestamp Check.

Defaults

This command has no default settings.

Command Modes

Configuration mode.

Command History

Release	Modification
NX-OS 4.1(3)	Added a Note.
1.0(2)	This command was introduced.

Usage Guidelines

None.

---

Note If the MDS switch does not see the server's time updates for a longer than period of time, it starts polling the server, or it may not poll the server at all. Even after the poll, if the time updates are not coming, the poll interval is reduced until it can elicit a response. The poll interval is reduced up to a minimum of 4 seconds.

---

Examples

This example forms a server association with a server:

switch(config)# ntp server 10.10.10.10

switch(config)#

This example forms a peer association with a peer. You can specify multiple associations:

switch(config)# ntp peer 10.20.10.0

switch(config)#

Related Commands

Command	Description
ntp distribute	Enables CFS distribution for NTP.
show ntp	Displays NTP information.

ntp abort

To discard the Network Time Protocol (NTP) Cisco Fabric Services (CFS) distribution session in progress, use the ntp abort command in configuration mode.

ntp abort

Syntax Description

This command has no other arguments or keywords.

Defaults

None.

Command Modes

Configuration mode.

Command History

Release	Modification
2.0(x)	This command was introduced.

Usage Guidelines

None.

Examples

The following example shows how to configure NTP CFS distribution session in progress:

switch# config terminal

switch(config)# ntp abort

Related Commands

Command	Description
ntp distribute	Enables CFS distribution for NTP.
show ntp	Displays NTP information.

ntp commit

To apply the pending configuration pertaining to the Network Time Protocol (NTP) Cisco Fabric Services (CFS) distribution session in progress in the fabric, use the ntp commit command in configuration mode.

ntp commit

Syntax Description

This command has no other arguments or keywords.

Defaults

None.

Command Modes

Configuration mode.

Command History

Release	Modification
2.0(x)	This command was introduced.

Usage Guidelines

None.

Examples

The following example shows how to commit changes to the active NTP configuration:

switch# config terminal

switch(config)# ntp commit

Related Commands

Command	Description
ntp distribute	Enables CFS distribution for NTP.
show ntp	Displays NTP information.

ntp distribute

To enable Cisco Fabric Services (CFS) distribution for Network Time Protocol (NTP), use the ntp distribute command. To disable this feature, use the no form of the command.

ntp distribute

no ntp distribute

Syntax Description

This command has no other arguments or keywords.

Defaults

Disabled.

Command Modes

Configuration mode.

Command History

This command was introduced in Cisco MDS SAN-OS Release 1.0(2).

Command History

Release	Modification
2.0(x)	This command was introduced.

Usage Guidelines

Before distributing the Fibre Channel timer changes to the fabric, the temporary changes to the configuration must be committed to the active configuration using the ntp commit command.

Examples

The following example shows how to distribute the active NTP configuration to the fabric:

switch# config terminal

switch(config)# ntp distribute

Related Commands

Command	Description
ntp commit	Commits the NTP configuration changes to the active configuration.
show ntp	Displays NTP information.

ntp sync-retry

To retry synchronization with configured servers, use the ntp sync-retry command.

ntp sync-retry

Syntax Description

This command has no arguments or keywords.

Defaults

None.

Command Modes

EXEC mode.

Command History

Release	Modification
4.1(1b)	Added a note.
3.3(1a)	This command was introduced.

Usage Guidelines

None.

---

Note If the user changes the mgmt0 ip address, NX-OS should conditionally do an internal ntp syncronization-retry.

---

Examples

The following example displays the sup-fc0 message logs:

switch# ntp sync-retry

Related Commands

Command	Description
ntp distribute	Enables CFS distribution for NTP.
show ntp	Displays NTP information.

nwwn (DPVM database configuration submode)

To add a device to a dynamic port VSAN membership (DPVM) database using the nWWN, use the nwwn command in DPVM database configuration submode. To remove a device from a DPVM database using the nWWN, use the no form of the command.

nwwn nwwn-id vsan vsan-id

no nwwn nwwn-id vsan vsan-id

Syntax Description

nwwn-id	Specifies the node WWN ID. The format is hh:hh:hh:hh:hh:hh:hh, where h is a hexadecimal number.
vsan vsan-id	Specifies the VSAN ID. The range is 1 to 4093.

Defaults

None.

Command Modes

DPVM database configuration submode.

Command History

Release	Modification
2.0(x)	This command was introduced.

Usage Guidelines

To use this command, DPVM must be enabled using the dpvm enable command.

Examples

The following example shows how to add an entry to the DPVM database:

switch# config terminal

switch(config)# dpvm database

switch(config-dpvm-db)# nwwn 11:22:33:44:55:66:77:88 vsan 1

The following example shows how to delete an entry from the DPVM database:

switch(config-dpvm-db)# no nwwn 11:22:33:44:55:66:77:88 vsan 1

Related Commands

Command	Description
dpvm database	Configures the DPVM database.
show dpvm	Displays DPVM database information.

nwwn (SAN extension configuration mode)

To configure the nWWN for the SAN extension tuner, use the nwwn command in SAN extension configuration submode.

nwwn nwwn-id

Syntax Description

nwwn-id

Specifies the nWWN address. The format is hh:hh:hh:hh:hh:hh:hh:hh, where h is a hexadecimal number.

Defaults

None.

Command Modes

SAN extension configuration mode.

Command History

Release	Modification
2.0(x)	This command was introduced.

Usage Guidelines

None.

Examples

The following example shows how to add an entry to the SAN extension tuner database:

switch# san-ext-tuner

switch(san-ext)# nwwn 20:42:00:0b:46:79:f1:80

Related Commands

Command	Description
san-ext-tuner	Enters SAN extension configuration mode.
show san-ext-tuner	Shows SAN extension tuner information.