Table Of Contents

C Commands

class (policy map)

class-map type control-plane

clear access-list counters

clear accounting log

clear copp statistics

clear dot1x

clear eou

clear hardware rate-limiter

clear ip access-list counters

clear ip arp inspection log

clear ip arp inspection statistics vlan

clear ip device tracking

clear ip dhcp snooping binding

clear mac access-list counters

clear port-security

clear ssh hosts

clear user

cts device-id

cts dot1x

cts manual

cts refresh role-based-policy

cts rekey

cts role-based access-list

cts role-based enforcement

cts role-based sgt

cts role-based sgt-map

cts sgt

cts sxp connection peer

cts sxp default password

cts sxp default source-ip

cts sxp enable

cts sxp reconcile-period

cts sxp retry-period

C Commands

---

This chapter describes the Cisco NX-OS security commands that begin with C.

class (policy map)

To specify a control plane class map for a control plane policy map, use the class command. To delete a control plane class map from a control plane policy map, use the no form of this command.

class {class-map-name [insert-before class-map-name2] | class-default}

no class class-map-name

Syntax Description

class-map-name	Name of the class map.
insert-before class-map-name2	(Optional) Inserts the control plane class map ahead of another control plane class map for the control plane policy map.
class-default	Specifies the default class.

Defaults

None

Command Modes

Policy map configuration

Supported User Roles

network-admin
vdc-admin

Command History

Release	Modification
4.0(1)	This command was introduced.

Usage Guidelines

You can use this command only in the default virtual device context (VDC).

This command does not require a license.

Examples

This example shows how to configure a class map for a control plane policy map:

switch# config t

switch(config)# policy-map type control-plane PolicyMapA

switch(config-pmap)# class ClassMapA

swtich(config-pmap-c)

This example shows how to delete a class map from a control plane policy map:

switch# config t

switch(config)# policy-map type control-plane PolicyMapA

switch(config-pmap)# no class ClassMapA

Related Commands

Command	Description
policy-map type control-plane	Specifies a control plane policy map and enters policy map configuration mode.
show policy-map type control-plane	Displays configuration information for control plane policy maps.

class-map type control-plane

To create or specify a control plane class map and enter class map configuration mode, use the class-map type control-plane command. To delete a control plane class map, use the no form of this command.

class-map type control-plane [match-all | match-any] class-map-name

no class-map type control-plane [match-all | match-any] class-map-name

Syntax Description

match-all	(Optional) Specifies to match all match conditions in the class map.
match-any	(Optional) Specifies to match any match conditions in the class map.
class-map-name	Name of the class map. The name is alphanumeric and case-sensitive. The maximum length is 64 characters.

Defaults

match-any

Command Modes

Global configuration

Supported User Roles

network-admin
vdc-admin

Command History

Release	Modification
4.0(1)	This command was introduced.

Usage Guidelines

You cannot use match-all, match-any, or class-default as names for control plane class maps.

You can use this command only in the default virtual device context (VDC).

This command does not require a license.

Examples

This example shows how to specify a control plane class map and enter class map configuration mode:

switch# config t

switch(config)# class-map type control-plane ClassMapA

switch(config-cmap)#

This example shows how to delete a control plane class map:

switch# config t

switch(config)# no class-map type control-plane ClassMapA

Related Commands

Command	Description
show class-map type control-plane	Displays control plane policy map configuration information.

clear access-list counters

To clear the counters for all IPv4 and MAC access control lists (ACLs) or a single ACL, use the clear access-list counters command.

clear access-list counters [access-list-name]

Syntax Description

access-list-name

(Optional) Name of the ACL whose counters the device clears. The name can be up to 64 alphanumeric, case-sensitive characters.

Defaults

None

Command Modes

Privileged EXEC

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 clear counters for all IPv4 and MAC ACLs:

switch# clear access-list counters

switch#

This example shows how to clear counters for an IPv4 ACL named acl-ipv4-01:

switch# clear access-list counters acl-ipv4-01

switch#

Related Commands

Command	Description
clear ip access-list counters	Clears counters for IPv4 ACLs.
clear mac access-list counters	Clears counters for MAC ACLs.
show access-lists	Displays information about one or all IPv4 and MAC ACLs.

clear accounting log

To clear the accounting log, use the clear accounting log command.

clear accounting log

Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
vdc-admin

Command History

Release	Modification
4.0(1)	This command was introduced.

Usage Guidelines

The command operates only in the default virtual device context (VDC 1).

This command does not require a license.

Examples

This example shows how to clear the accounting log:

switch# clear accounting log

Related Commands

Command	Description
show accounting log	Displays the accounting log contents.

clear copp statistics

To clear control plane policing (CoPP) statistics, use the clear copp statistics command.

clear copp statistics

Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Any configuration mode

Supported User Roles

network-admin
vdc-admin

Command History

Release	Modification
4.0(1)	This command was introduced.

Usage Guidelines

You can use this command only in the default virtual device context (VDC).

This command does not require a license.

Examples

This example shows how to specify a control plane class map and enter class map configuration mode:

switch# clear copp statistics

Related Commands

Command	Description
show policy-map interface control-plane	Displays the CoPP statistics for interfaces.

clear dot1x

To clear 802.1X authenticator instances, use the clear dot1x command.

clear dot1x {all | interface ethernet slot/port}

Syntax Description

all	Specifies all 802.1X authenticator instances.
interface ethernet slot/port	Specifies the 802.1X authenticator instances for a specified interface.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
vdc-admin

Command History

Release	Modification
4.0(1)	This command was introduced.

Usage Guidelines

You must use the feature dot1x command before you configure 802.1X.

This command does not require a license.

Examples

This example shows how to clear all 802.1X authenticator instances:

switch# clear dot1x all

This example shows how to clear the 802.1X authenticator instances for an interface:

switch# clear dot1x interface ethernet 1/1

Related Commands

Command	Description
feature dot1x	Enables the 802.1X feature.
show dot1x all	Displays all 802.1X information.

clear eou

To clear Extensible Authentication Protocol over User Datagram Protocol (EAPoUDP) sessions, use the clear eou command.

clear eou {all | authentication {clientless | eap | static} | interface ethernet slot/port | ip-address ipv4-address | mac-address mac-address | posturetoken type}

Syntax Description

all	Specifies all EAPoUDP sessions.
authentication	Specifies EAPoUDP authentication
clientless	Specifies sessions authenticated using clientless posture validation.
eap	Specifies sessions authenticated using EAPoUDP.
static	Specifies sessions authenticated using statically configured exception lists.
interface ethernet slot/port	Specifies an interface.
ip-address ipv4-address	Specifies an IPv4 address. in the A.B.C.D format.
mac-address mac-address	Specifies a MAC address.
posturetoken type	Specifies a posture token name.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
vdc-admin

Command History

Release	Modification
4.0(1)	This command was introduced.

Usage Guidelines

You must enable EAPoUDP by using the feature eou command before using the clear eou command.

This command does not require a license.

Examples

This example shows how to clear all the EAPoUDP sessions:

switch# clear eou all

This example shows how to clear the statically authenticated EAPoUDP sessions:

switch# clear eou authentication static

This example shows how to clear the EAPoUDP sessions for an interface:

switch# clear eou interface ethernet 1/1

This example shows how to clear the EAPoUDP sessions for an IP address:

switch# clear eou ip-address 10.10.1.1

This example shows how to clear the EAPoUDP sessions for a MAC address:

switch# clear eou mac-address 0019.076c.dac4

This example shows how to the EAPoUDP sessions with a posture token type of checkup:

switch# clear eou posturetoken healthy

Related Commands

Command	Description
feature eou	Enables EAPoUDP.
show eou	Displays EAPoUDP information.

clear hardware rate-limiter

To clear rate-limit statistics, use the clear hardware rate-limiter command.

clear rate-limiter {access-list-log | all | copy | layer-2 {port-security | storm-control} | layer-3 {control | glean | mtu | multicast {directly-connected | local-groups | rpf-leak} | ttl} | receive}

Syntax Description

access-list-log	Clears rate-limit statistics for access-list logging packets.
all	Clears all rate-limit statistics.
copy	Clears rate-limit statistics for copy packets.
layer-2	Specifies Layer 2 packets rate limits.
port-security	Clears rate-limit statistics for Layer 2 port-security packets.
storm-control	Clears rate-limit statistics for Layer 2 storm-control packets.
layer-3	Specifies Layer 3 packets rate limits.
control	Clears rate-limit statistics for Layer 3 control packets.
glean	Clears rate-limit statistics for Layer 3 glean packets.
mtu	Clears rate-limit statistics for Layer 3 maximum transmission unit (MTU) packets.
multicast	Specifies Layer 3 multicast rate limits.
directly-connected	Clears rate-limit statistics for Layer 3 directly connected multicast packets.
local-groups	Clears rate-limit statistics for Layer 3 local group multicast packets.
rpf-leak	Clears rate-limit statistics for Layer 3 reverse path forwarding (RPF) leak multicast packets.
ttl	Clears rate-limit statistics for Layer 3 time-to-live (TTL) packets.
receive	Clears rate-limit statistics for receive packets.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin

Command History

Release	Modification
4.0(1)	This command was introduced.
4.0(3)	Added the port-security keyword.

Usage Guidelines

You can use the command only in the default virtual device context (VDC).

This command does not require a license.

Examples

This example shows how to clear all the rate-limit statistics:

switch# clear hardware rate-limiter all

This example shows how to clear the rate-limit statistics for access-list logging packets:

switch# clear hardware rate-limiter access-list-log

This example shows how to clear the rate-limit statistics for Layer 2 storm-control packets:

switch# clear hardware rate-limiter layer-2 storm-control

This example shows how to clear the rate-limit statistics for Layer 3 glean packets:

switch# clear hardware rate-limiter layer-3 glean

This example shows how to clear the rate-limit statistics for Layer 3 directly connected multicast packets:

switch# clear hardware rate-limiter layer-3 multicast directly-connected

This example shows how to clear the rate-limit statistics for received packets:

switch# clear hardware rate-limiter receive

Related Commands

Command	Description
platform rate-limit	Configures rate limits.
show hardware rate-limit	Displays rate-limit information.

clear ip access-list counters

To clear the counters for all IPv4 access control lists (ACLs) or a single IPv4 ACL, use the clear ip access-list counters command.

clear ip access-list counters [access-list-name]

Syntax Description

access-list-name

(Optional) Name of the IPv4 ACL whose counters the device clears. The name can be up to 64 alphanumeric, case-sensitive characters.

Defaults

None

Command Modes

Privileged EXEC

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 clear counters for all IPv4 ACLs:

switch# clear ip access-list counters

switch#

This example shows how to clear counters for an IP ACL named acl-ipv4-101:

switch# clear ip access-list counters acl-ipv4-101

switch#

Related Commands

Command	Description
clear access-list counters	Clears counters for IPv4 and MAC ACLs.
clear mac access-list counters	Clears counters for MAC ACLs.
show access-lists	Displays information about one or all IPv4 and MAC ACLs.
show ip access-lists	Displays information about one or all IPv4 ACLs.

clear ip arp inspection log

To clear the Dynamic ARP Inspection (DAI) logging buffer, use the clear ip arp inspection log command.

clear ip arp inspection log

Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Any command mode

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 clear the DAI logging buffer:

switch# clear ip arp inspection log 

switch# 

Related Commands

Command	Description
ip arp inspection log-buffer	Configures the DAI logging buffer size.
show ip arp inspection	Displays the DAI configuration status.
show ip arp inspection log	Displays the DAI log configuration.
show ip arp inspection statistics	Displays the DAI statistics.

clear ip arp inspection statistics vlan

To clear the Dynamic ARP Inspection (DAI) statistics for a specified VLAN, use the clear ip arp inspection statistics vlan command.

clear ip arp inspection statistics vlan vlan-list

Syntax Description

vlan vlan-list

Specifies the VLANs whose DAI statistics this command clears. The vlan-list argument allows you to specify a single VLAN ID, a range of VLAN IDs, or comma-separated IDs and ranges (see the "Examples" section). Valid VLAN IDs are from 1 to 4094.

Defaults

None

Command Modes

Any command mode

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 clear the DAI statistics for VLAN 2:

switch# clear ip arp inspection statistics vlan 2

switch# 

This example shows how to clear the DAI statistics for VLANs 5 through 12:

switch# clear ip arp inspection statistics vlan 5-12

switch# 

This example shows how to clear the DAI statistics for VLAN 2 and VLANs 5 through 12:

switch# clear ip arp inspection statistics vlan 2,5-12

switch# 

Related Commands

Command	Description
clear ip arp inspection log	Clears the DAI logging buffer.
ip arp inspection log-buffer	Configures the DAI logging buffer size.
show ip arp inspection	Displays the DAI configuration status.
show ip arp inspection vlan	Displays DAI status for a specified list of VLANs.

clear ip device tracking

To clear IP device tracking information, use the clear ip device tracking command.

clear ip device tracking {all | interface ethernet slot/port | ip-address ipv4-address | mac-address mac-address}

Syntax Description

all	Clears all IP device tracking information.
interface ethernet slot/port	Clears IP device tracking information for an interface.
ip-address ipv4-address	Clears IP device tracking information for an IPv4 address in the A.B.C.D format.
mac-address mac-address	Clears IP tracking information for a MAC address in the XXXX.XXXX.XXXX format.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
vdc-admin
VDC user

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 clear all the IP device tracking information:

switch# clear ip device tracking all

This example shows how to clear the IP device tracking information for an interface:

switch# clear ip device tracking interface ethernet 1/1

This example shows how to clear the IP device tracking information for an IP address:

switch# clear ip device tracking ip-address 10.10.1.1

This example shows how to clear the IP device tracking information for a MAC address:

switch# clear ip device tracking mac-address 000c.30da.86f4

Related Commands

Command	Description
ip device tracking	Enables IP device tracking.
show ip device tracking	Displays IP device tracking information.

clear ip dhcp snooping binding

To clear the DHCP snooping binding database, use the clear ip dhcp snooping binding command.

clear ip dhcp snooping binding

clear ip dhcp snooping binding [vlan vlan-id mac mac-address ip ip-address interface ethernet slot/port[.subinterface-number]]

clear ip dhcp snooping binding [vlan vlan-id mac mac-address ip ip-address interface port-channel channel-number[.subchannel-number]]

Syntax Description

vlan vlan-id	(Optional) Clears the DHCP snooping binding database for an entry identified with the VLAN ID specified by the vlan-id argument and the additional keywords and arguments that follow.
mac-address mac-address	Specifies the MAC address of the binding database entry to be cleared. Enter the mac-address argument in dotted hexadecimal format.
ip ip-address	Specifies the IPv4 address of the binding database entry to be cleared. Enter the ip-address argument in dotted decimal format.
interface ethernet slot/port	(Optional) Specifies the Ethernet interface of the binding database entry to be cleared.
.subinterface-number	(Optional) Number of the Ethernet-interface subinterface. Note The dot separator is required between the port and subinterface-number arguments.
interface port-channel channel-number	(Optional) Specifies the Ethernet port-channel of the binding database entry to be cleared.
.subchannel-number	(Optional) Number of the Ethernet port-channel subchannel. Note The dot separator is required between the channel-number and subchannel-number arguments.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
vdc-admin
VDC user

Command History

Release	Modification
4.0(1)	This command was introduced.
4.0(3)	This command was modified to support clearing a specific binding database entry. The optional vlan keyword and the arguments and keywords that follow it were added.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to clear the DHCP snooping binding database:

switch# clear ip dhcp snooping binding

switch# 

This example shows how to clear a specific entry from the DHCP snooping binding database:

switch# clear ip dhcp snooping binding vlan 23 mac 0060.3aeb.54f0 ip 10.34.54.9 interface 
ethernet 2/11

switch# 

Related Commands

Command	Description
ip dhcp snooping	Globally enables DHCP snooping on the device.
show ip dhcp snooping	Displays general information about DHCP snooping.
show ip dhcp snooping binding	Displays IP-MAC address bindings, including the static IP source entries.
show ip dhcp snooping statistics	Displays DHCP snooping statistics.
show running-config dhcp	Displays DHCP snooping configuration, including the IP Source Guard configuration.

clear mac access-list counters

To clear the counters for all MAC access control lists (ACLs) or a single MAC ACL, use the clear mac access-list counters command.

clear mac access-list counters [access-list-name]

Syntax Description

access-list-name

(Optional) Name of the MAC ACL whose counters the device clears. The name can be up to 64 alphanumeric, case-sensitive characters.

Defaults

None

Command Modes

Privileged EXEC

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 clear counters for all MAC ACLs:

switch# clear mac access-list counters

switch#

This example shows how to clear counters for a MAC ACL named acl-mac-0060:

switch# clear mac access-list counters acl-ipv4-0060

switch#

Related Commands

Command	Description
clear access-list counters	Clears counters for IPv4 and MAC ACLs.
clear ip access-list counters	Clears counters for IPv4 ACLs.
show access-lists	Displays information about one or all IPv4 and MAC ACLs.
show mac access-lists	Displays information about one or all MAC ACLs.

clear port-security

To clear a single, dynamically learned, secure MAC address or to clear all dynamically learned, secure MAC addresses for a specific interface, use the clear port-security command.

clear port-security {dynamic} {interface ethernet slot/port | address address} [vlan vlan-id]

Syntax Description

dynamic	Specifies that you want to clear dynamically learned, secure MAC addresses.
interface ethernet slot/port	Specifies the interface of the dynamically learned, secure MAC addresses that you want to clear.
address address	Specifies a single MAC address to be cleared, where address is the MAC address.
vlan vlan-id	Specifies the VLAN of the secure MAC addresses to be cleared. Valid VLAN IDs are from 1 to 4096.

Defaults

dynamic

Command Modes

Any command mode

Supported User Roles

network-admin
vdc-admin

Command History

Release	Modification
4.0(1)	This command was introduced.

Usage Guidelines

You must enable port security by using the feature port-security command before you can use the clear port-security command.

This command does not require a license.

Examples

This example shows how to remove dynamically learned, secure MAC addresses from the Ethernet 2/1 interface:

switch# config t

switch(config)# clear port-security dynamic interface ethernet 2/1

This example shows how to remove the dynamically learned, secure MAC address 0019.D2D0.00AE:

switch# config t

switch(config)# clear port-security dynamic address 0019.D2D0.00AE

Related Commands

Command	Description
debug port-security	Provides debugging information for port security.
feature port-security	Enables port security globally.
show port-security	Shows information about port security.
switchport port-security	Enables port security on a Layer 2 interface.

clear ssh hosts

To clear the Secure Shell (SSH) host sessions for a virtual device context (VDC), use the clear ssh hosts command.

clear ssh hosts

Syntax Description

This command has no arguments or keywords.

Defaults

None

Command Modes

Any command mode

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 clear all SSH host sessions:

switch# clear ssh hosts

Related Commands

Command	Description
ssh server enable	Enables the SSH server.

clear user

To clear a user session for a virtual device context (VDC), use the clear user command.

clear user user-id

Syntax Description

user-id

User identifier.

Defaults

None

Command Modes

Any command mode

Supported User Roles

network-admin
vdc-admin

Command History

Release	Modification
4.0(1)	This command was introduced.

Usage Guidelines

Use the show users command to display the current user sessions on the device.

This command does not require a license.

Examples

This example shows how to clear all SSH host sessions:

switch# clear user user1

Related Commands

Command	Description
show users	Displays the user session information.

cts device-id

To configure a Cisco TrustSec device identifier, use the cts device-id command.

cts device-id device-id password [7] password

Syntax Description

device-id	Cisco TrustSec device identifier name. The name is alphanumeric and case-sensitive. The maximum length is 32 characters.
7	(Optional) Encrypts the password.
password password	Specifies the password to use during EAP-FAST processing. The name is alphanumeric and case-sensitive. The maximum length is 32 characters.

Defaults

No Cisco TrustSec device identifier
Clear text password

Command Modes

Global 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, you must enable the Cisco TrustSec feature using the feature cts command.

The Cisco TrustSec device identifier name must be unique in your Cisco TrustSec network cloud.

This command requires the Advanced Services license.

Examples

This example shows how to configure a Cisco TrustSec device identifier:

switch# config t

swtich(config)# cts device-id DeviceA password Cisco321

Related Commands

Command	Description
feature cts	Enables the Cisco TrustSec feature.
show cts credentials	Displays the Cisco TrustSec credentials information.

cts dot1x

To enable Cisco TrustSec authentication on an interface and enter Cisco TrustSec 802.1X configuration mode, use the cts dot1x command. To revert to the default, use the no form of this command.

cts dot1x

no cts dot1x

Syntax Description

This command has no arguments or keywords.

Defaults

Disabled

Command Modes

Interface 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, you must enable the Cisco TrustSec feature using the feature cts command.

After using this command, you must enable and disable the interface using the shutdown/no shutdown command sequence for the configuration to take effect.

This command requires the Advanced Services license.

Examples

This example shows how to enable Cisco TrustSec authentication on an interface:

switch# config t

switch(config)# interface ethernet 2/3

switch(config-if)# cts dot1x

switch(config-if-cts-dot1x)# exit

switch(config-if)# shutdown

switch(config-if)# no shutdown

This example shows how to disable Cisco TrustSec authentication on an interface:

switch# config t

switch(config)# interface ethernet 2/3

switch(config-if)# no cts dot1x

switch(config-if)# shutdown

switch(config-if)# no shutdown

Related Commands

Command	Description
feature cts	Enables the Cisco TrustSec feature.
show cts interface	Displays Cisco TrustSec configuration information for interfaces.

cts manual

To enter Cisco TrustSec manual configuration for an interface, use the cts manual command. To remove the manual configuration, use the no form of this command.

cts manual

no cts manual

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

To use this command, you must enable the Cisco TrustSec feature using the feature cts command.

After using this command, you must enable and disable the interface using the shutdown/no shutdown command sequence for the configuration to take effect.

This command requires the Advanced Services license.

Examples

This example shows how to enter Cisco TrustSec manual configuration mode for an interface:

switch# config t

switch(config)# interface etherent 2/4

switch(config-if)# cts manual

switch(config-if-cts-manual)# 

This example shows how to remove the Cisco TrustSec manual configuration from an interface:

switch# config