S Commands [Cisco Nexus 7000 Series Switches]

Table Of Contents

S Commands

sampler

save

scheduler

shut

snmp-server aaa-user cache-timeout

snmp-server community

snmp-server contact

snmp-server context

snmp-server enable traps

snmp-server globalEnforcePriv

snmp-server host

snmp-server host filter-vrf

snmp-server host use-vrf

snmp-server location

snmp-server mib community-map

snmp-server protocol enable

snmp-server source-interface

snmp-server tcp-session

snmp-server user

snmp-server user enforcePriv

snmp-trap

source

source

switchport monitor

system cores

system hap-reset

system heartbeat

system no hap-reset

system no heartbeat

system no standby manual-boot

system no watchdog

system no watchdog kgdb

system pss shrink

system standby manual-boot

system startup-config init

system startup-config unlock

system test-preupgrade running-ver

system switchover

system trace

system watchdog

system watchdog kgdb

S Commands

This chapter describes the Cisco NX-OS system management commands that begin with the letter S, excluding the show commands.

sampler

To define a sampler and enter the sampler configuration mode, use the sampler command. To remove the sampler definition, use the no form of this command.

sampler name
no sampler name
Syntax Description

name

Name of the sampler.

Defaults

No samplers are defined.

Command Modes

Global configuration

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

NetFlow sampling means that M out of N packets are sampled. When a packet is sampled and there is a NetFlow cache miss, a NetFlow cache entry is created for this flow. The first packet timestamp is updated and the statistics for the first packet are initialized (for example, the bytes are set to the number of bytes in the packet and the packet count is set to one). If there is a NetFlow cache hit when the packet is sampled, the cache for this flow is updated, which includes adding the number of bytes in the packet to the byte counter and incrementing the packet count by one.

Once you enter the sampler name command, you enter the sampler configuration mode, and the prompt changes to the following:
switch(config-flow-sampler)#
Within the sampler configuration mode, the following keywords and arguments are available to configure the flow monitor:

•description description—Provides a description for this sampler; you can add a maximum of 63 characters.

•exit—Exits from the current configuration mode.

•mode sample-num out-of packets—Configures the sampler mode. The valid values are as follows:

–sample-num—Number of samples per sampling. The range is from 1 to 64.

–out-of—Specifies the samples per packet ratio.

–packets—Number of packets in each sampling. The range is from 1 to 8192.

•no—Negates a command or sets its defaults.

This command does not require a license.

Examples

This example shows how to define a sampler and enter the sampler configuration mode:
switch(config)# sampler testsampler
switch(config-flow-sampler)#
This example shows how to configure the sampler mode:
switch(config)# sampler testsampler
switch(config-flow-sampler)# mode 24 out-of 1200
This example shows how to remove a sampler definition:
switch(config)# no sampler testsampler
switch(config-flow)#
Related Commands

Command

Description

flow exporter

Creates a flow exporter.

flow monitor

Creates a flow monitor.

flow record

Creates a flow record.

save

To save the current configuration session to a file, use the save command.

save location
Syntax Description

location

Location of the file. The location can be in bootflash:, slot0:, or volatile: The filename can be any alphanumeric string up to 63 characters.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to save a configuration session to a file in bootflash:

switch# configure session myACLs
switch(config-s)# save bootflash:sessions/myACLs 
Related Commands

Command

Description

delete

Deletes a file from a location.

scheduler

To create or schedule a scheduler job, use the scheduler command. To remove a job or scheduled job, use the no form of this command.

scheduler {aaa-authentication [username username] password [0 | 7] password |
job name job-name | logfile size filesize | schedule name schedule-name}
no scheduler {aaa-authentication [username username] password [0 | 7] password |
job name job-name | logfile size filesize | schedule name schedule-name}
Syntax Description

aaa-authentication

Begins an AAA authentication exchange with a remote user.

username username

Indicates the remote user is entering a username and specifies the username.

password

Indicates the remote user is entering a password for authentication.

0

Indicates the password is in clear text.

7

Indicates the password is encrypted.

password

Remote user's password.

job name job-name

Places you into job configuration mode for the specified job name.

The maximum length of the name is 31 characters.

logfile

Specifies a logfile configuration.

size filesize

Specifies the size of the logfile. The range is from 16 to 1024 KB.

schedule

Defines a schedule for a job.

name schedule-name

Specifies the name of the schedule. The maximum length of the name is 31 characters.

Defaults

None

Command Modes

Job configuration

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

To use this command, the scheduler must already be enabled.

To enable the scheduler, use the feature scheduler command.

Remote users must authenticate with the device using the scheduler aaa-authentication command before using this command to configure a maintenance job.

Note The commands within a scheduler job must be entered in a single line separated by semicolon (;).

This command does not require a license.

Examples

This example shows how to create a scheduler job that saves the running configuration to a file in bootflash and then copies the file from bootflash to a TFTP server. The filename is created using the current timestamp and switch name.
switch(config)# scheduler job name backup-cfg
switch(config-job)# cli var name timestamp $(TIMESTAMP);copy running-config 
bootflash:/$(SWITCHNAME)-cfg.$(timestamp);copy bootflash:/$(SWITCHNAME)-cfg.$(timestamp) 
tftp://1.2.3.4/ vrf management
switch(config-job)# end
switch(config)# 
This example shows how to schedule a scheduler job to run daily at 1:00 a.m:
switch(config)# scheduler schedule name daily
switch(config-schedule)# job name backup-cfg
switch(config-schedule)# time daily 1:00
switch(config-schedule)# end
switch(config)# 
This example shows how to remove a scheduler job:
switch# config t
switch(config)# no scheduler job name backup-cfg
This example shows how to remove a scheduler job schedule:
switch# config t
switch(config)# no scheduler schedule name daily
This example shows how to specify the password for a remote user:
switch# config t
switch(config)# scheduler aaa-authentication password newpwd
This example shows how to specify a clear text password for a remote user:
switch# config t
switch(config)# scheduler aaa-authentication password 0 newpwd
This example shows how to specify an encrypted password for a remote user:
switch# config t
switch(config)# scheduler aaa-authentication password 7 newpwd2
This example shows how to specify a name and authentication password for a remote user:
switch# config t
switch(config)# scheduler aaa-authentication username admin1 password newpwd3
Related Commands

Command

Description

feature scheduler

Enables the scheduler.

show scheduler

Displays scheduler information.

shut

To shut down an Ethernet Switched Port Analyzer (SPAN) session, use the shut command. To enable a SPAN session, use the no form of this command.

shut
no shut
Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Monitor-common configuration (config-monitor)

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to shut down a SPAN session:
switch(config)# monitor session 1
switch(config-monitor)# shut
This example shows how to enable a SPAN session:
switch(config-monitor)# no shut
switch(config-monitor)#
Related Commands

Command

Description

monitor session

Enters the monitor configuration mode.

show monitor session

Displays the virtual SPAN configuration.

snmp-server aaa-user cache-timeout

To configure the Simple Network Management Protocol (SNMP) time-out value for synchronized AAA users, use the snmp-server aaa-user cache-timeout command. To revert to default, use the no form of this command.

snmp-server aaa-user cache-timeout seconds
no snmp-server aaa-user cache-timeout seconds
Syntax Description

seconds

Timeout value, in seconds. The range is from 1 to 86400.

Defaults

3600 seconds

Command Modes

Global configuration

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.0(3)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to configure the AAA user synchronization timeout value:
switch# configure terminal
switch(config)# snmp-server aaa-user cache-timeout 6000
Related Commands

Command

Description

show snmp

Displays information about SNMP.

snmp-server community

To configure the Simple Network Management Protocol (SNMP) community string, use the snmp-server community command. To remove the community string, use the no form of this command.

snmp-server community name [group name | ro | rw]
no snmp-server community name [group name | ro | rw]
Syntax Description

name

SNMP community string. The name can be any alphanumeric string up to 32 characters.

group name

(Optional) Specifies the group name to which the community belongs. The name can be any alphanumeric string up to 32 characters.

ro

(Optional) Sets read-only access for this community.

rw

(Optional) Sets read-write access for this community.

Defaults

The default community access is read-only (ro).

Command Modes

Global configuration

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

Use the snmp-server community command to configure read-only or read-write access to the SNMP agent on the device. You can optionally configure the community for an access group or user role. For more information on user roles, see the Cisco Nexus 7000 Series NX-OS Virtual Device Context Configuration Guide, Release 5.x.

This command does not require a license.

Examples

This example shows how to configure a read-only SNMP community:
switch# configure terminal
switch(config)# snmp-server community test ro
Related Commands

Command

Description

show snmp community

Displays information about SNMP communities.

show snmp group

Displays information about configured user roles.

snmp-server contact

To configure the Simple Network Management Protocol (SNMP) contact information, use the snmp-server contact command. To remove the contact information, use the no form of this command.

snmp-server contact [contact-info]
no snmp-server contact [contact-info]
Syntax Description

contact-info

(Optional) SNMP contact information (sysContact). The name can be any alphanumeric string up to 255 characters.

Defaults

A zero-length string

Command Modes

Global configuration

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

Use the snmp-server contact command to configure the SNMP sysContact variable.

This command does not require a license.

Examples

This example shows how to configure the SNMP contact:
switch# configure terminal
switch(config)# snmp-server contact Jane Smith@anyplace.com
Related Commands

Command

Description

show snmp

Displays information about SNMP.

snmp-server context

To configure the Simple Network Management Protocol (SNMP) context to logical network entity mapping, use the snmp-server context command. To remove the context, use the no form of this command.

snmp-server context context-name [instance instance-name] [vrf vrf-name] [topology topology-name]
no snmp-server context context-name [instance instance-name] [vrf vrf-name] [topology topology-name]
Syntax Description

context-name

SNMP context. The name can be any alphanumeric string up to 32 characters.

instance instance-name

(Optional) Specifies a protocol instance. The name can be any alphanumeric string up to 32 characters.

vrf vrf-name

(Optional) Specifies the virtual routing and forwarding (VRF) instance. The name can be any alphanumeric string up to 32 characters.

topology topology-name

(Optional) Specifies the topology. The name can be any alphanumeric string up to 32 characters.

Defaults

None

Command Modes

Global configuration

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.0(2)

This command was introduced.

Usage Guidelines

Use the snmp-server context command to map between SNMP contexts and logical network entities, such as protocol instances or VRFs.

Do not use the instance, vrf, or topology keywords to delete a context. If you use these keywords, you map the context to a zero-length string.

If you are using SNMPv2c, use the snmp-server mib community-map command to map an SNMPv2c community to an SNMP context and use the snmp-server context command to map this context to a logical network entity.

For more information on context mapping, see the Cisco Nexus 7000 Series NX-OS Virtual Device Context Configuration Guide, Release 5.x.

This command does not require a license.

Examples

This example shows how to map the public1 context to VRF red:
switch# configure terminal
switch(config)# snmp-server context public1 vrf red
Related Commands

Command

Description

show snmp context

Displays information about SNMP contexts.

snmp-server mib community-map

Maps an SNMPv2c community to an SNMP context.

snmp-server enable traps

To enable the Simple Network Management Protocol (SNMP) notifications, use the snmp-server enable traps command. To disable SNMP notifications, use the no form of this command.

snmp-server enable traps [aaa [server-state-change] | bgp | bridge [newroot] [topologychange] | callhome [event-notify] [smtp-send-fail] | cfs [merge-failure] [state-change-notif] | config [ccmCLIRunningConfigChanged] | eigrp | entity [entity_fan_status_change] [entity_mib_change] [entity_module_inserted] [entity_module_removed] [entity_module_status_change] [entity_power_out_change] [entity_power_status_change] [entity_unrecognised_module] | feature-control [FeatureOpStatusChange] | hsrp [state-change] | license [notify-license-expiry] [notify-license-expiry-warning] [notify-licensefile-missing] [notify-no-license-for-feature] | link [IETF-extended-linkDown] [IETF-extended-linkUp] [cisco-extended-linkDown] [cisco-extended-linkUp] [linkDown] [linkUp] | ospf instance-tag [lsa | rate-limit rate] | port-security [access-secure-mac-violation] [trunk-secure-mac-violation] | rf [redundancy_framework] | rmon [ fallingAlarm | hcFallingAlarm | hcRisingAlarm | risingAlarm] | snmp [authentication] | stpx [inconsistency] [loop-consistency] [root-inconsistency] | sysmgr [cseFailSwCoreNotifyExtended] | upgrade [UpgradeJobStatusNotify] [UpgradeOpNotifyOnCompletion] | zone [default-zone-behavior-change] [merge-failure] [merge-success] [request-reject1] [unsupp-mem]]
no snmp-server enable traps [aaa [server-state-change] | bgp | bridge [newroot] [topologychange] | callhome [event-notify] [smtp-send-fail] | cfs [merge-failure] [state-change-notif] | config [ccmCLIRunningConfigChanged] | eigrp | entity [entity_fan_status_change] [entity_mib_change] [entity_module_inserted] [entity_module_removed] [entity_module_status_change] [entity_power_out_change] [entity_power_status_change] [entity_unrecognised_module] | feature-control [FeatureOpStatusChange] | hsrp [state-change] | license [notify-license-expiry] [notify-license-expiry-warning] [notify-licensefile-missing] [notify-no-license-for-feature] | link [IETF-extended-linkDown] [IETF-extended-linkUp] [cisco-extended-linkDown] [cisco-extended-linkUp] [linkDown] [linkUp] | ospf instance-tag [lsa | rate-limit rate] | port-security [access-secure-mac-violation] [trunk-secure-mac-violation] | rf [redundancy_framework] | rmon [ fallingAlarm | hcFallingAlarm | hcRisingAlarm | risingAlarm] | snmp [authentication] | stpx [inconsistency] [loop-consistency] [root-inconsistency] | sysmgr [cseFailSwCoreNotifyExtended] | upgrade [UpgradeJobStatusNotify] [UpgradeOpNotifyOnCompletion] | zone [default-zone-behavior-change] [merge-failure] [merge-success] [request-reject1] [unsupp-mem]]
Syntax Description

aaa

(Optional) Enables AAA notifications.

server-state-
change

(Optional) Enables the server-state-change AAA notification.

bgp

(Optional) Enables BGP notifications.

bridge

(Optional) Enables STP bridge MIB notifications.

newroot

(Optional) Enables STP new root bridge notifications.

topologychange

(Optional) Enables STP topology change notifications.

callhome

(Optional) Enables Call Home notifications.

event-notify

(Optional) Enables Call Home external event notifications.

smtp-send-fail

(Optional) Enables smtp-send-fail Simple Mail Transfer Protocol (SMTP) message send fail notifications.

cfs

(Optional) Enables Cisco Fabric Services (CFS) notifications.

merge-failure

(Optional) Enables merge failure notifications.

state-change-notif

(Optional) Enables state change notifications.

config

(Optional) Enables configuration change notifications.

ccmCLIRunningConfigChanged

(Optional) Enables CLI running/startup config change notifications.

eigrp

(Optional) Enables EIGRP4-MIB notifications.

entity

(Optional) Enables ENTITY-MIB notifications.

entity_mib_change

(Optional) Enables entity MIB change notifications.

entity_module_
inserted

(Optional) Enables entity module inserted notifications.

entity_module_
removed

(Optional) Enables entity module removed notifications.

entity_module_status_change

(Optional) Enables entity module status change notifications.

entity_power_out_
change

(Optional) Enables entity power out change notifications.

entity_power_status_
change

(Optional) Enables entity power status change notifications.

entity_unrecognised_module

(Optional) Enables entity unrecognized module notifications.

feature-control

(Optional) Enables feature change notifications.

FeatureOpStatusChange

(Optional) Enables feature operation status change notifications.

hsrp

(Optional) Enables CISCO-HSRP-MIB notifications.

state-change

(Optional) Enables the state-change HSRP notifications.

license

(Optional) Enables license notifications.

notify-license-expiry

(Optional) Enables license expiry notifications.

notify-license-expiry-warning

(Optional) Enables license expiry warning notifications.

notify-licensefile-
missing

(Optional) Enables license file missing notifications.

notify-no-license-for-
feature

(Optional) Enables no license installed for feature notifications.

link

(Optional) Enables IF-MIB link notifications.

IETF-extended-linkDown

(Optional) Enables Internet engineering task force (IETF) extended link state down notifications.

IETF-
extended-linkUp

(Optional) Enables IETF extended link state up notifications.

cisco-extended-linkDown

(Optional) Enables Cisco extended link state down notifications.

cisco-extended-linkUp

(Optional) Enables Cisco extended link state up notifications.

linkDown

(Optional) Enables IETF Link state down notifications.

linkUp

(Optional) Enables IETF Link state up notifications

ospf instance-tag

(Optional) Enables Open Shortest Path First (OSPF) notifications.

lsa

(Optional) Enables OSPF LSA notifications.

rate-limit rate

(Optional) Enables rate limits on OSPF notifications. The range is from 2 to 60 seconds. The default is 10 seconds.

port-security

(Optional) Enables port security notifications.

access-secure-mac-
violation

(Optional) Enables secure MAC violation notifications.

trunk-secure-mac-
violation

(Optional) Enables VLAN secure MAC violation notifications.

rf

(Optional) Enables redundancy framework (RF) SNMP notifications.

redundancy_
framework

(Optional) Enables redundancy_framework (RF) Sup switchover MIB notifications.

rmon

(Optional) Enables remote monitoring (RMON) notifications.

fallingAlarm

(Optional) Enables RMON falling alarm notifications.

hcFallingAlarm

(Optional) Enables RMON high capacity falling alarm notifications.

hcRisingAlarm

(Optional) Enables RMON high capacity rising alarm notifications.

risingAlarm

(Optional) Enables RMON rising alarm notifications.

snmp

(Optional) Enables general SNMP notifications.

authentication

(Optional) Enables SNMP authentication notifications.

stpx

(Optional) Enables STPX MIB notifications.

inconsistency

(Optional) Enables SNMP STPX MIB InconsistencyUpdate notifications.

loop-inconsistency

(Optional) Enables SNMP STPX MIBLoop InconsistencyUpdate notifications.

root-inconsistency

(Optional) Enables SNMP STPX MIB RootInconsistencyUpdate notifications.

sysmgr

Optional) Enables software change notifications.

cseFailSwCoreNotifyExtended

Optional) Enables software core notifications.

upgrade

(Optional) Enables upgrade notifications.

UpgradeJobStatusNotify

(Optional) Enables upgrade job status notifications.

UpgradeOpNotifyOnCompletion

(Optional) Enables upgrade global status notifications.

zone

(Optional) Enables default zone change notifications.

default-zone-behavior-change

(Optional) Enables default zone behavior change notifications.

merge-failure

(Optional) Enables merge failure notifications.

merge-success

(Optional) Enables merge success notifications.

request-reject1

(Optional) Enables request reject notifications.

unsupp-mem

(Optional) Enables unsupported member notifications.

Defaults

License and SNMP authentication notifications are enabled.

Command Modes

Global configuration

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.0(1)

This command was introduced.

4.0(2)

Added the OSPF rate-limit keyword.

4.0(3)

Added the eigrp keyword.

5.0(2)

Added the cfs, config, feature-control, rmon, and zone keywords.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to enable BGP notifications:
switch# configure terminal
switch(config) snmp-server enable traps bgp
Related Commands

Command

Description

show snmp trap

Displays the enable or disable state of all SNMP notifications.

snmp-server globalEnforcePriv

To globally enforce privacy for all Simple Network Management Protocol (SNMP) users, use the snmp-server globalEnforcePriv command. To disable global privacy, use the no form of this command.

snmp-server globalEnforcePriv
no snmp-server globalEnforcePriv
Syntax Description

This command has no arguments or keywords.

Defaults

Disabled

Command Modes

Global configuration

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

Use the snmp-server globalEnforcePriv command to enforce privacy on all SNMP users.

This command does not require a license.

Examples

This example shows how to globally enforce privacy for all SNMP contacts:
switch# configure terminal
switch(config)# snmp-server globalEnforcePriv
Related Commands

Command

Description

show snmp

Displays information about SNMP.

snmp-server host

To specify the server host to receive Simple Network Management Protocol (SNMP) notifications, use the snmp-server host command. To remove the SNMP server configuration, use the no form of this command.

snmp-server host host-name {snmp-name | filter-vrf {vrf-name | default | management} | informs {snmp-name | version {1 snmp-name | 2c snmp-name | 3 {auth snmp-name | noauth snmp-name | priv snmp-name}}} | source-interface {ethernet number | loopback number | mgmt number | port-channel number | vlan number} | traps {snmp-name | version {1 snmp-name | 2c snmp-name | 3 {auth snmp-name | noauth snmp-name | priv snmp-name}} | use-vrf {vrf-name | default | management} | version {1 snmp-name | 2c snmp-name | 3 {auth snmp-name | noauth snmp-name | priv snmp-name}} udp-port port
no snmp-server host host-name {snmp-name | filter-vrf {vrf-name | default | management} | informs {snmp-name | version {1 snmp-name | 2c snmp-name | 3 {auth snmp-name | noauth snmp-name | priv snmp-name}}} | source-interface {ethernet number | loopback number | mgmt number | port-channel number | vlan number} | traps {snmp-name | version {1 snmp-name | 2c snmp-name | 3 {auth snmp-name | noauth snmp-name | priv snmp-name}} | use-vrf {vrf-name | default | management} | version {1 snmp-name | 2c snmp-name | 3 {auth snmp-name | noauth snmp-name | priv snmp-name}} udp-port port
Syntax Description

host-name

IP4 or IPv6 address or name of the host.

snmp-name

SNMP community string or SNMPv3 username. The maximum number of alphanumeric characters is 32.

filter-vrf

Specifies the virtual routing and forwarding (VRF) instance whose notifications are to be filtered.

vrf-name

Name of the VRF. The maximum number of alphanumeric characters is 32.

default

Specifies the default VRF.

management

Specifies the management VRF.

informs

Sends SNMP information to this host.

version

Specifies the SNMP version used to send notifications.

1

Specifies SNMPv1.

2c

Specifies SNMPv2c.

3

Specifies SNMPv3.

auth

Specifies the SNMPv3 authNoPriv security level.

noauth

Specifies the SNMPv3 noAuthNoPriv security level.

priv

Specifies the SNMPv3 authPriv security level.

source-interface

Specifies the source interface used to send SNMP notifications to this host.

ethernet number

Specifies the Ethernet IEEE 802.3z slot number and port number in this format: 1/1. The range for the slot number is from 1 to 18, and the range for the port number is from 1 to 128.

loopback number

Specifies the virtual interface number. The range is from 0 to 1023.

mgmt number

Specifies the management interface number. The value is 0.

port-channel number

Specifies the port-channel number and the subinterface number in this format: 1.1. The range for the port-channel number is from 1 to 4096, and the range for the subinterface number is from 1 to 4093.

vlan number

Specifies the VLAN interface number. The range is from 1 to 4094.

traps

Sends SNMP traps to this host.

use-vrf

Specifies the name of the VRF on which notifications are to be sent.

udp-port port

Specifies the User Datagram Protocol (UDP) port number of the notification host. The range is from 0 to 65535.

Defaults

None

Command Modes

Global configuration

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.2(1)

This command was introduced.

Usage Guidelines

The source-interface configuration overrides the global source-interface configuration.

This command does not require a license.

Examples

This example shows how to configure an SNMP server host:
switch(config)# snmp-server host 192.0.2.1 traps snmp1 udp-port 1
This example shows how to remove an SNMP server host:
switch(config)# no snmp-server host 192.0.2.1 traps snmp1 udp-port 1
switch(config)#
Related Commands

Command

Description

snmp-server community

Configures the SNMP community string.

snmp-server contact

Configures the SNMP contact information.

snmp-server host filter-vrf

To configure a Simple Network Management Protocol (SNMP) host receiver to gather notifications that occur on a specific virtual routing and forwarding (VRF) instance, use the snmp-server host filter-vrf command. To remove the VRF filter, use the no form of this command.

snmp-server host host-address filter-vrf vrf-name [udp-port port]
no snmp-server host host-address filter-vrf vrf-name [udp-port port]
Syntax Description

host-address

Name or IP address of the host (the targeted recipient).

vrf-name

Name of the VRF. The name can be any alphanumeric string up to 63 characters.

udp-port port

(Optional) Specifies the port UDP port of the host to use. The range is from 0 to 65535. The default is 162.

Defaults

None

Command Modes

Global configuration

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to configure the host receiver to receive notifications from the red VRF.
switch# config terminal
switch(config)# snmp-server host 10.1.1.1 filter-vrf red
Related Commands

Command

Description

show snmp

Displays SNMP information.

snmp-server host

Configures an SNMP host receiver.

snmp-server host use-vrf

Configures Cisco NX-OS to send notifications on the specified VRF to communicate with an SNMP host receiver.

snmp-server host use-vrf

To configure the device to communicate with a Simple Network Management Protocol (SNMP) host receiver on a specific virtual routing and forwarding (VRF) instance, use the snmp-server host use-vrf command. To return to the default, use the no form of this command.

snmp-server host host-address use-vrf vrf-name [udp-port port]
no snmp-server host host-address use-vrf vrf-name [udp-port port]
Syntax Description

host-address

Name or IP address of the host (the targeted recipient).

vrf-name

Name of the VRF. The name can be any alphanumeric string up to 63 characters.

udp-port port

(Optional) Specifies the port UDP port of the host to use. The range is from 0 to 65535. The default is 162.

Defaults

None

Command Modes

Global configuration

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to configure Cisco NX-OS to communicate with the host receiver on the blue VRF.
switch# config terminal
switch(config)# snmp-server host 10.1.1.1 use-vrf blue
Related Commands

Command

Description

show snmp

Displays SNMP information.

snmp-server host

Configures an SNMP host receiver.

snmp-server host filter-vrf

Sends only notifications on the specified VRF to the host receiver.

snmp-server location

To configure the device location used by the Simple Network Management Protocol (SNMP), use the snmp-server location command. To remove the location, use the no form of this command.

snmp-server location [location]
no snmp-server location [location]
Syntax Description

location

(Optional) System location. The location can be any alphanumeric string up to 255 characters.

Defaults

None

Command Modes

Global configuration

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to set the SNMP location:
switch# config terminal
switch(config)# snmp-server location SanJose
Related Commands

Command

Description

show snmp

Displays information about SNMP.

snmp-server mib community-map

To configure the Simple Network Management Protocol (SNMP) version 2c community to context mapping, use the snmp-server mib community-map command. To remove the community to context mapping, use the no form of this command.

snmp-server mib community-map community-string context context-name
no snmp-server mib community-map community-string context context-name
Syntax Description

community-string

SNMP community string. The string can be any alphanumeric string up to 32 characters.

context context-name

Specifies the SNMP context. The name can be any alphanumeric string up to 32 characters.

Defaults

None

Command Modes

Global configuration

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.0(2)

This command was introduced.

Usage Guidelines

Use the snmp-server mib community-map command to map between SNMPv2c communities and SNMP contexts. Use the snmp-server context command to map this context to a logical network entity.

For more information on context mapping, see the Cisco Nexus 7000 Series NX-OS Virtual Device Context Configuration Guide, Release 5.x.

This command does not require a license.

Examples

This example shows how to map the public community to the public1 context:
switch# configure terminal
switch(config)# snmp-server mib community-map public context public1
Related Commands

Command

Description

show snmp community

Displays information about SNMP communities.

show snmp context

Displays information about SNMP contexts.

snmp-server context

Maps an SNMP context to a logical network entity.

snmp-server protocol enable

To enable the Simple Network Management Protocol (SNMP), use the snmp-server protocol enable command. To disable SNMP, use the no form of this command.

snmp-server protocol enable
no snmp-server protocol enable
Syntax Description

This command has no arguments or keywords.

Defaults

Enabled

Command Modes

Global configuration

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.0(3)

This command was introduced.

Usage Guidelines

Use the no snmp protocol enable command to disable SNMP and close any TCP or UDP ports associated with the protocol.

This command does not require a license.

Examples

This example shows how to disable SNMP:
switch# configure terminal
switch(config)# no snmp-server protocol enable
snmp-server source-interface

To configure a Simple Network Management Protocol (SNMP) source interface through which notifications are sent, use the snmp-server source-interface command. To remove the SNMP source interface configuration, use the no form of this command.

snmp-server source-interface {traps | informs} {ethernet number | loopback number | mgmt number | port-channel number | vlan number}
no snmp-server source-interface {traps | informs} {ethernet number | loopback number | mgmt number | port-channel number | vlan number}
Syntax Description

traps

Sends SNMP traps through the source interface.

informs

Sends SNMP information through the source interface.

ethernet number

Specifies the Ethernet IEEE 802.3z slot number and port number in this format: 1/1. The range for the slot number is from 1 to 18, and the range for the port number is from 1 to 128.

loopback number

Specifies the virtual interface number. The range is from 0 to 1023.

mgmt number

Specifies the management interface number.

port-channel number

Specifies the port-channel number and the subinterface number in this format: 1.1. The range for the port-channel number is from 1 to 4096, and the range for the subinterface number is from 1 to 4093.

vlan number

Specifies the VLAN interface number. The range is from 1 to 4094.

Defaults

None

Command Modes

Global configuration

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.2(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to configure an SNMP source interface:
switch(config)# snmp-server source-interface traps ethernet 1/1
This example shows how to remove the SNMP source interface:
switch(config)# no snmp-server source-interface traps ethernet 1/1
switch(config)#
Related Commands

Command

Description

snmp-server community

Configures the SNMP community string.

snmp-server host

Configures a host receiver for SNMP notifications.

snmp-server tcp-session

To enable one-time authentication for Simple Network Management Protocol (SNMP) over a TCP session, use the snmp-server tcp-session command. To disable one-time authentication for SNMP over a TCP session, use the no form of this command.

snmp-server tcp-session [auth]
no snmp-server tcp-session [auth]
Syntax Description

auth

(Optional) Enables one-time authentication for SNMP over a TCP session.

Defaults

One-time authentication for SNMP over a TCP session is enabled.

Command Modes

Global configuration

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to enable one-time authentication for SNMP over a TCP session.
switch# config t
switch(config)# snmp-server tcp-session auth
Related Commands

Command

Description

show snmp

Displays information about SNMP.

snmp-server user

To configure the Simple Network Management Protocol (SNMP) user information, use the snmp-server user command. To disable the configuration or to revert to factory defaults, use the no form of this command.

snmp-server user username [group-name] [auth {md5 | sha} password [priv [aes-128] password] [localizedkey] [engineID id]
no snmp-server user username [group-name] [auth {md5 | sha} password [priv [aes-128] password] [localizedkey] [engineID id]
Syntax Description

username

Name of the user. The name can be any case-sensitive, alphanumeric string up to 32 characters.

group-name

(Optional) Name of the group. The name can be any case-sensitive, alphanumeric string up to 32 characters.

auth

(Optional) Sets authentication parameters for the user.

md5

Uses the MD5 algorithm for authentication.

sha

Uses the SHA algorithm for authentication.

password

User password. The password can be any case-sensitive, alphanumeric string up to 64 characters. If you configure the localizedkey keyword, the password can be any case-sensitive, alphanumeric string up to 130 characters

priv

(Optional) Sets encryption parameters for the user.

aes-128

(Optional) Sets the 128-byte AES algorithm for privacy.

localizedkey

(Optional) Sets passwords in the localized key format. If you configure this keyword, the password can be any case-sensitive, alphanumeric string up to 130 characters.

engineID id

(Optional) Configures the SNMP Engine ID for a notification target user. The engineID format is a 12-digit colon-separated decimal number.

Defaults

None

Command Modes

Global configuration

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

Use the snmp-server user command to configure user authentication and privacy settings for SNMP. If you use the localizedkey keyword, you cannot port the SNMP user configuration across devices because the user password contains information on the engine ID of the device. If you copy a configuration file into the device, the passwords may not be set correctly if the configuration file was generated at a different device. We recommend that you explicitly configure passwords after copying the configuration into the device.

SNMP Version 3 is the most secure model, because it allows packet encryption with the priv keyword.

To assign multiple roles to a user, configure multiple snmp-server user username group-name commands. The group-name argument is defined by the role name command.

If you are configuring an SNMP notification target user, use the engineID keyword to configure the SNMP engine ID for this user.

To delete the user or the role associated with that user, use the no form of this command.

Note You cannot delete the last role for a user.

This command does not require a license.

Examples

This example shows how to set the user authentication information for user jane:
switch# config terminal
switch(config)# snmp-server user jane network-admin auth sha abcd1234
This example shows how to multiple roles for user sam:
switch# config terminal
switch(config)# snmp-server user sam network-admin 
switch(config)# snmp-server user sam testrole 
This example shows how to the user authentication and privacy information for user Juan:
switch# config terminal
switch(config)# snmp-server user Juan network-admin auth sha abcd1234 priv abcdefgh
This example shows how to the user authentication and SNMP engine ID for a notification target user:
switch# config terminal
switch(config)# snmp-server user notifUser network-admin auth sha abcd1234 engineID 
00:12:00:00:09:03:00:05:48:00:74:30
Related Commands

Command

Description

role name

Configures role profiles used as SNMP group names.

show snmp

Displays SNMP information.

snmp-server host

Configures SNMP server host information.

snmp-server user enforcePriv

To enforce privacy for a Simple Network Management Protocol (SNMP) user, use the snmp-server user enforcePriv command. To revert to factory defaults, use the no form of this command.

snmp-server user username enforcePriv
no snmp-server user username enforcePriv
Syntax Description

username

Name of the user. The name can be any case-sensitive, alphanumeric string up to 32 characters.

Defaults

None

Command Modes

Global configuration

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to enforce privacy for the user joe:
switch# config terminal
switch(config)# snmp-server user joe enforcePriv
Related Commands

Command

Description

role name

Configures role profiles used as SNMP group names.

show snmp

Displays SNMP information.

snmp-server user

Configures SNMP user information.

snmp-trap

To generate a Simple Network Management Protocol (SNMP) trap when an Embedded Event Manager (EEM) applet is triggered, use the snmp-trap command.

snmp-trap [intdata1 integer-data1] [intdata2 integer-data2] [strdata string-data] event-type ev_type policy-name name
Syntax Description

intdata1 integer-data1

(Optional) Specifies an integer to be sent in the SNMP trap message to the SNMP agent.

intdata2 integer-data2

(Optional) Specifies a second integer to be sent in the SNMP trap message to the SNMP agent.

strdata string-data

(Optional) Specifies a string to be sent in the SNMP trap message to the SNMP agent. If the string contains embedded blanks, enclose it in double quotation marks.

event-type

Specifies the event type.

ev_type

Event type.

policy-name

Specifies the policy name.

name

Policy name.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to generate an SNMP trap when an EEM applet is triggered:
switch(config)# event manager applet snmp-applet
switch(config-applet)# action 1 snmp-trap strdata "EEM detected server failure"
switch(config-applet)#
Related Commands

Command

Description

syslog

Configures a syslog message to generate when an Embedded Event Manager (EEM) applet is triggered.

source

To configure the NetFlow exporter interface to use to reach the NetFlow collector for the configured destination, use the source command. To remove the source, use the no form of this command.

source if-type if-number
no source [if-type if-number]
Syntax Description

if-type

Interface type. For more information, use the question mark (?) online help function.

if-number

Interface or subinterface number. For more information about the numbering syntax for your networking device, use the question mark (?) online help function.

Defaults

None

Command Modes

NetFlow exporter configuration (config-flow-exporter)

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to configure the NetFlow exporter source interface:
switch(config)# flow exporter Netflow-Exporter-1
switch(config-flow-exporter)# source Ethernet3/11
switch(config-flow-exporter)#
This example shows how to remove the Netflow exporter source interface configuration:
switch(config-flow-exporter)# no source Ethernet3/11
switch(config-flow-exporter)#
Related Commands

Command

Description

show flow exporter

Displays information about NetFlow exporters.

source

To configure sources and the traffic direction in which to copy packets, use the source command. To remove sources, use the no form of this command.

source {interface interface_range | vlan vlan_range} [src_dir]
no source {interface interface_range | vlan vlan_range} [src_dir]
Syntax Description

interface interface_range

Specifies interfaces. The range is from 1 to 128.

vlan vlan_range

Specifies the VLAN type. The VLAN range is from 1 to 3967 and 4048 to 4093.

src_dir

(Optional) Source direction. The traffic direction to copy as ingress (tx), egress (tx), or both. By default, the direction is both.

Defaults

None

Command Modes

Config-tx-only-monitor configuration (config- monitor)

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

You can configure one or more sources, as either a series of comma-separated entries, or a range of numbers. You can specify up to 128 interfaces.

The traffic direction to copy as ingress (tx), egress (tx), or both. By default, the direction is both.

This command does not require a license.

Examples

This example shows how to configure sources and the traffic direction in which to copy packets:
switch(config)# monitor session 1
switch(config-monitor)# source vlan 3, 6-10 tx
switch(config-monitor)#
This example shows how to remove a source configuration:
switch(config-monitor)# no source vlan 3, 6-10 tx
switch(config-monitor)#
Related Commands

Command

Description

show monitor session

Displays the virtual SPAN configuration.

copy running-config startup-config

Copies the running configuration to the startup configuration.

switchport monitor

To configure the switchport interface as a Switched Port Analyzer (SPAN) destination, use the switchport monitor command. To disable the configuration, use the no form of this command.

switchport monitor [ingress [learning]]
no switchport monitor [ingress [learning]]
Syntax Description

ingress

(Optional) Allows the SPAN destination port to inject packets that disrupt a certain TCP packet stream, for example, in networks with an intrusion detection system (IDS).

learning

(Optional) Allows the SPAN destination port to inject packets, and allows the learning of MAC addresses, for example, the IDS MAC address.

Defaults

None

Command Modes

Interface configuration

Command History

Release

Modification

4.1(2)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to configure the Ethernet interface 7/2 as a SPAN destination:
switch# config t
Enter configuration commands, one per line.  End with CNTL/Z.
switch(config)# interface eth 7/2
switch(config-if)# switchport monitor
switch(config-if)# 
This example shows how to configure the Ethernet interface 7/2 as a SPAN destination and allow it to inject packets and learn MAC addresses:
switch# config t
Enter configuration commands, one per line.  End with CNTL/Z.
switch(config)# interface eth 7/2
switch(config-if)# switchport monitor ingress learning
switch(config-if)# 
This example shows how to disable the SPAN destination on Ethernet interface 7/2:
switch# config t
Enter configuration commands, one per line.  End with CNTL/Z.
switch(config)# interface eth 7/2
switch(config-if)# no switchport monitor
switch(config-if)# 
Related Commands

Command

Description

monitor session

Enters the monitor configuration mode for configuring a SPAN session.

show monitor session

Displays the SPAN session configuration.

system cores

To configure the destination for the system core, use the system cores command. To revert to the default, use the no form of this command.

system cores {slot0:[path] | tftp:/server//[path/]}filename
no system cores
Syntax Description

slot0:

Specifies the slot0: external file system.

path/

(Optional) Directory path to the file. The directory names in the path are case sensitive.

tftp:

Specifies a TFTP server.

/server//

Name or IPv4 address of the TFTP server. The server name is case sensitive.

filename

Name for the core file. The name is alphanumeric, case sensitive, and has a maximum of 32 characters.

Defaults

None

Command Modes

Global configuration

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to configure a core file:
switch# configure terminal
switch(config)# system cores slot0:core_file
This example shows how to disable system core logging:
switch# configure terminal
switch(config)# no system cores
Related Commands

Command

Description

clear system cores

Clears the core file.

show system cores

Displays the core filename.

system hap-reset

To enable the Supervisor Reset high availability (HA) policy, use the system hap-reset command.

system hap-reset
Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to enable the Supervisor Reset HA policy:
switch(config)# system hap-reset
switch(config)#
Related Commands

Command

Description

show system standby manual-boot

Displays the status of the system standby manual boot option.

system heartbeat

To enable heartbeat checks (default) and revert to the factory default, use the system heartbeat command.

system heartbeat
Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to enable the heartbeat checks (default) and revert to the factory default:
switch(config)# system heartbeat
switch(config)#
Related Commands

Command

Description

system no hap-reset

Disables the heartbeat checks (default) and reverts to the factory default.

system no hap-reset

To disable the Supervisor Reset high availability (HA) policy, use the system no hap-reset command.

system no hap-reset
Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to disable the Supervisor Reset HA policy:
switch(config)# system no hap-reset
switch(config)#
Related Commands

Command

Description

system hap-reset

Enables the Supervisor Reset HA policy.

system no heartbeat

To disable the heartbeat checking (default) and revert to the factory default, use the system no heartbeat command.

system no heartbeat
Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to disable the heartbeat checks (default) and revert to the factory default:
switch(config)# system no heartbeat
switch(config)#
Related Commands

Command

Description

system heartbeat

Enables the heartbeat checks (default) and reverts to the factory default.

system no standby manual-boot

To disable the system standby manual boot option, use the system no standby manual-boot command.

system no standby manual-boot
Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to disable the system standby manual boot option:
switch(config)# system no standby manual-boot
system standby manual-boot option disabled
switch(config)#
Related Commands

Command

Description

show system standby manual-boot

Displays the status of the system standby manual boot option.

system no watchdog

To disable the watchdog feature, use the system no watchdog command.

system no watchdog
Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to disable the watchdog feature:
switch(config)# system no watchdog
switch(config)#
Related Commands

Command

Description

system no watchdog kgdb

Prevents the system from entering the Linux KGDB debugger on a watchdog failure.

system no watchdog kgdb

To prevent the system from entering the Linux KGDB debugger on a watchdog failure, use the system no watchdog kgdb command.

system no watchdog kgdb
Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to prevent the system from entering the Linux KGDB debugger on a watchdog failure:
switch(config)# system no watchdog kgdb
switch(config)# 
Related Commands

Command

Description

system no watchdog

Disables the watchdog feature.

system pss shrink

To shrink Persistent Storage Service (PSS) files on the system, use the system pss shrink command.

system pss shrink
Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to shrink PSS files on the system:
switch(config)# system pss shrink
pss shrink completed
switch(config)
Related Commands

Command

Description

show system pss shrink status

Displays the last PSS shrink status.

system standby manual-boot

To display the standby manual-boot status, use the system standby manual-boot command.

system standby manual-boot
Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to display the standby manual-boot status:
switch(config)# system standby manual-boot
system standby manual-boot option enabled
switch(config)#
Related Commands

Command

Description

system startup-config init

Initializes the startup configuration.

system startup-config init

To initialize the startup configuration, use the system startup-config init command.

system startup-config init
Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to initialize the startup configuration:
switch(config)# system startup-config init
WARNING: This command is going to re-initialize the contents of the startup-conf
iguration.
Do you want to continue? (y/n)  [y]
Related Commands

Command

Description

system startup-config unlock

Releases the system startup-configuration lock.

system startup-config unlock

To release a system startup-configuration lock, use the system startup-config unlock command.

system startup-config unlock luck-id
Syntax Description

luck-id

Startup-configuration lock ID. The range is from 0 to 65536.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to release a system startup-configuration lock:
switch(config)# system startup-config unlock
switch(config)#
Related Commands

Command

Description

system startup-config init

Initializes the startup configuration.

system test-preupgrade running-ver

To test the running software version before an upgrade, use the system test-preupgrade running-ver command.

system test-preupgrade running-ver version-number target-ver target-number swid id impact impact-number
Syntax Description

version-number

Software version number currently running on the system.

target-ver

Specifies the target version of the software.

target-number

Target version.

swid

Specifies the software ID of the image running on a module: system or kickstart.

id

Software ID.

impact

Specifies the impact: 0 for hitless and 1 for hitful.

impact-number

Impact number.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to test the running software version before an upgrade:
switch(config)# system test-preupgrade running-ver 4.2<0.202> target-ver Update
swid 4.2.1 impact 0
System will be upgraded according to following table:
Module        Swid      Impact       Running-Version           New-Version  Upg-Required
------  ----------  ----------  --------------------  --------------------  ------------
     6       4.2.1     hitless            4.2<0.202>                Update
     1
     9       4.2.1     hitless            4.2<0.202>                Update
     1
    11       4.2.1     hitless            4.2<0.202>                Update
     1
Final upgrade impact table:
Module      Impact
------  ----------
     6     hitless
     9     hitless
    11     hitless
Message from services:
switch(config)#
Related Commands

Command

Description

system startup-config unlock

Releases a system startup-configuration lock.

system startup-config init

Initializes the startup configuration.

system switchover

To switch over to the standby supervisor, use the system switchover command.

system switchover
Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to switch over to the standby supervisor:
switch# system switchover
switch#
Related Commands

Command

Description

show system redundancy

Displays the system redundancy status.

system trace

To configure a system trace level, use the system trace command. To remove the system trace level configuration, use the no form of this command.

system trace bit-mask
no system trace [bit-mask]
Syntax Description

bit-mask

Bit mask to use to change the trace level of the system.

Defaults

None

Command Modes

Global configuration (config)

Supported User Roles

network-admin
vdc-admin

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to configure a system trace level:
switch(config)# system trace
switch(config)#
This example shows how to remove the system trace level configuration:
switch(config)# system no trace
switch(config)#
Related Commands

Command

Description

show cores

Displays the system core files.

system watchdog

To enable watchdog checks, use the system watchdog command.

system watchdog
Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to enable watchdog checks:
switch(config)# system watchdog
switch(config)#
Related Commands

Command

Description

system no watchdog

Disables the watchdog feature.

system no watchdog kgdb

Prevents the system from entering the Linux KGDB debugger on a watchdog failure.

system watchdog kgdb

To configure the system to enter the Linux KGDB debugger on a watchdog failure, use the system watchdog kgdb command.

system watchdog kgdb
Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
network-operator
vdc-admin
vdc-operator

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to configure the system to enter the Linux KGDB debugger on a watchdog failure:
switch(config)# system watchdog kgdb
switch(config)#
Related Commands

Command

Description

system watchdog

Enables the watchdog feature.

system no watchdog

Disables the watchdog feature.