Table of Contents

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clear logging server

Use the clear logging server command to delete a syslog server from the system log server table.

Console> (enable) clear logging server 171.69.192.207
System log server 171.69.192.207 removed from system log server table.
Console> (enable) 

set logging server
show logging

clear mls

Use the clear mls command set to clear the IP or IPX MLS features in the Catalyst 6000 family switches.

Syntax Description

statistics	Keyword to clear total packets switched and total packets exported (for NDE).
statistics protocol	Keywords to clear protocols for statistics collection.
protocol	Number of the protocol in the protocol statistics list.
port	Number of the port.
all	Keyword to clear all entries from the statistics protocol list.
entry	Keyword to purge the specified MLS entry or all entries if all is specified. All matching MLS entries are purged.
ip	(Optional) Keyword to specify IP MLS.
ipx	(Optional) Keyword to specify IPX MLS.
destination	(Optional) Keyword to specify the destination IP address.
ip_addr_spec	(Optional) Full IP address or a subnet address in these formats: ip_addr, ip_addr/netmask, or ip_addr/maskbit.
source	(Optional) Keyword to specify the source IP address.
protocol protocol	(Optional) Keyword and variable to specify additional flow information (protocol family and protocol port pair) to be matched; valid values are from 1 to 255, ip, ipinip, icmp, igmp, tcp, and udp.
src-port src_port	(Optional) Keyword and variable to specify the source port IP address.
dst-port dst_port	(Optional) Keyword and variable to specify the destination port IP address.
ipx_addr_spec	(Optional) Full IPX address or a subnet address in these formats: src_net/[mask], dest_net.dest_node, or dest_net/mask.
ipx_net_addr	(Optional) Source IPX net address.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

When specifying the ip | ipx keyword, if you specify ip or do not enter a keyword, this means that the command is for IP MLS. If you specify ipx, this means the command is for IPX only.

When entering the IPX address syntax, use the following format:

• IPX net address—1..FFFFFFFE

• IPX node address—x.x.x where x is 0..FFFF

• IPX address—ipx_net.ipx_node (for example 3.0034.1245.AB45, A43.0000.0000.0001)

Up to 16 routers can be included explicitly as MLS-RPs.

To use a router as an MLS, you must meet these conditions:

• The router must be included (either explicitly or automatically) in the MLS-SE.

• The MLS feature must be enabled in the Catalyst 6000 family switches.

• The Catalyst 6000 family switches must know the router's MAC-VLAN pairs.

Use the following syntax to specify an IP subnet address:

• ip_subnet_addr—This is the short subnet address format. The trailing decimal number 00 in an IP address YY.YY.YY.00 specifies the boundary for an IP subnet address. For example, 172.22.36.00 indicates a 24-bit subnet address (subnet mask 172.22.36.00/255.255.255.0), and 173.24.00.00 indicates a 16-bit subnet address (subnet mask 173.24.00.00/255.255.0.0). However, this format can identify only a subnet address of 8, 16, or 24 bits.

• ip_addr/subnet_mask—This is the long subnet address format. For example, 172.22.252.00/255.255.252.00 indicates a 22-bit subnet address. This format can specify a subnet address of any bit number. To provide more flexibility, the ip_addr is a full host address, such as 172.22.253.1/255.255.252.00.

• ip_addr/maskbits—This is the simplified long subnet address format. The mask bits specify the number of bits of the network masks. For example, 172.22.252.00/22 indicates a 22-bit subnet address. The ip_addr is a full host address, such as 193.22.253.1/22, which has the same subnet address as the ip_subnet_addr.

If you do not use the all argument in the clear mls entry command, you must specify at least one of the other three keywords (source, destination, or protocol) and its arguments.

A 0 value for source_port and destination_port clears all entries. Unspecified options are treated as wildcards, and all entries are cleared.

If you enter any of the clear mls commands on a Catalyst 6000 family switch without MLS, this warning message displays:

When you remove an MSM from the Catalyst 6000 family switch, it is removed immediately from the inclusion list and all the MLS entries for the MSM are removed.

Examples

This example shows how to disable IP MLS for the Stargate router (IP address 172.20.15.1):

Console> (enable) clear mls include Stargate
Multilayer switching is disabled for router 172.20.15.1 (Stargate)
Console> (enable)
 

This example shows how to clear IP MLS statistics, including total packets switched and total packets exported (for NDE):

Console> (enable) clear mls statistics 
Netflow data export statistics cleared.
Console> (enable)
 

This example shows how to clear protocol 17, port 19344 from statistics collection:

Console> (enable) clear mls statistics protocol 17 19344
Protocol 17 port 1934 cleared from protocol statistics list.
Console> (enable)
 

This example shows how to clear the MLS entries with destination IP address 172.20.26.22:

Console> (enable) clear mls entry destination 172.20.26.22 
Multilayer switching entry cleared.
Console> (enable)
 

This example shows how to clear specific IP MLS entries for destination IP address 172.20.26.22:

Console> (enable) clear mls entry ip destination 172.20.26.22 source 172.20.22.113 protocol tcp 520 320
Multilayer switching entry cleared
Console> (enable)
 

This example shows how to clear specific IPX MLS entries for a destination IPX address:

Console> (enable) clear mls entry ipx destination 1.00e0.fefc.6000 source 3.0034.1245.AB45 
IPX Multilayer switching entry cleared
Console> (enable)

Related Commands

set mls agingtime
set mls exclude protocol
set mls nde
set mls statistics protocol
show mls

clear mls exclude protocol

Use the clear mls exclude protocol command to remove a protocol port that has been been excluded from shortcutting using the set mls exclude protocol command.

Syntax Description

tcp	Keyword to specify a TCP port.
udp	Keyword to specify a UDP port.
both	Keyword to specify that the port be applied to both TCP and UDP traffic.
port	Number of the port.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Examples

This example shows how to set TCP packets in a protocol port to be hardware switched:

Console> (enable) clear mls exclude protocol tcp 25
TCP packets with protocol port 25 will be MLS switched.
Console> (enable)

Related Commands

show mls exclude protocol
set mls exclude protocol

clear mls multicast statistics

Use the clear mls multicast statistics command to remove MLS multicast statistical information from the MSFC.

Syntax Description

mod	(Optional) Number of the MSFC; valid values are 15 and 16.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If you enter the clear mls multicast statistics command on a Catalyst 6000 family switch without MLS, this warning message is displayed:

If you place the MFSC on a supervisor engine installed in slot 1, then the MFSC is recognized as module 15. If you install the supervisor engine in slot 2, the MFSC is recognized as module 16.

Examples

This example shows how to clear MLS multicast statistics:

Console> (enable) clear mls multicast statistics
All statistics for the MLS routers in include list are cleared.
Console> (enable)

Related Commands

show mls multicast

clear mls nde flow

Use the clear mls nde flow command to reset the NDE filters in the Catalyst 6000 family switches.

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

Clearing both exclusion and inclusion filters results in exporting of all flows.

Examples

This example shows how to clear the NDE exclusion and inclusion filters and export all flows:

Console> (enable) clear mls nde flow
Netflow data export filter cleared.
Console> (enable)

Related Commands

show mls exclude protocol
set mls nde

clear module password

Use the clear module password command to clear the password set by the password [username] NAM command.

Syntax Description

mod	Number of the NAM.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

This command is supported by the NAM only.

The password [username] command is a NAM command and not a supervisor engine console command.

A message is displayed when the password is successfully cleared. See the "Examples" section for an example of the message.

Examples

This example shows how to clear the password from the NAM:

Console> (enable) clear module password 6
Module 6 password cleared.
Console> (enable) 2000 Apr 07 11:03:06 %SYS-5-MOD_PASSWDCLR:Module 6 password cl
eared from telnet/10.6.1.10/tester
Console> (enable) 

Related Commands

password

clear multicast router

Use the clear multicast router command to clear manually configured multicast router ports from the multicast router port list.

Console> (enable) clear multicast router 3/1
Port 3/1 cleared from multicast router port list.
Console> (enable)

set multicast router
show multicast router

clear ntp server

Use the clear ntp server command to remove one or more servers from the NTP server table.

Console> (enable) clear ntp server 172.20.22.191
NTP server 172.20.22.191 removed.
Console> (enable)
 

Console> (enable) clear ntp server all
All NTP servers cleared.
Console> (enable)

show ntp
set ntp server

clear port broadcast

Use the clear port broadcast command to disable broadcast/multicast suppression on one or more ports.

Console> (enable) clear port broadcast 2/1
Broadcast traffic unlimited on ports 2/1.
Console> (enable)

set port broadcast
show port broadcast

clear port cops

Use the clear port cops command set to clear port roles.

Syntax Description

mod/port	Number of the module and the port on the module.
roles role#	Keyword and variable to specify the roles to clear.
all-roles	Keyword to clear all roles.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

The clear port cops command detaches the roles from the port only; it does not remove them from the global table.

Examples

This example shows how to remove specific roles from a port:

Console> (enable) clear port cops 3/1 roles backbone_port main_port
Roles cleared for port(s) 3/1-4.
Console> (enable)
 

This example shows how to remove all roles from a port:

Console> (enable) clear port cops 3/1 all-roles
All roles cleared for port 3/1-4.
Console> (enable)

Related Commands

set port cops
show port cops

clear port qos cos

Use the clear port qos cos command to return the values set by the set port qos cos command to the factory-set default values for all specified ports.

This example shows how to return the values set by the set port qos cos command to the factory-set default values for module 2, port 1:

Console> (enable) clear port qos 2/1 cos
Port 2/1 qos cos setting cleared.
Console> (enable) 

Related Commands

set port qos cos
show port qos

clear port security

Use the clear port security command to clear all MAC addresses or a specific MAC address from the list of secure MAC addresses on a port.

Syntax Description

mod/port	Number of the module and the port on the module.
mac_addr	MAC address to be deleted.
all	Keyword to remove all MAC addresses.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Examples

This example shows how to remove a specific MAC address from a port's list of secure addresses:

Console> (enable) clear port security 4/1 00-11-22-33-44-55
00-11-22-33-44-55 cleared from secure address list list for port 4/1.
Console> (enable) 

Related Commands

set port securityy
show port security

clear pvlan mapping

Use the clear pvlan mapping command set to delete a private VLAN mapping.

Syntax Description

primary_vlan	Number of the primary VLAN.
isolated_vlan	Number of the isolated VLAN.
community_vlan	Number of the community VLAN.
mod/port	Number of the module and promiscuous port.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If you do not specify the mapping to clear, all the mappings of the specified promiscuous ports are cleared.

Examples

This example shows how to clear the mapping of VLAN 902 to 901, previously set on ports 3/2-5:

Console> (enable) clear pvlan mapping 901 902 3/2-5
Successfully cleared mapping between 901 and 902 on 3/2-5
Console> (enable) 

Related Commands

set vlan
show vlan
set pvlan
set pvlan mapping
clear vlan
clear config pvlan
show pvlan
show pvlan mapping

clear qos acl

Use the clear qos acl command set to remove various ACL configurations.

Syntax Description

acl_name	Unique name that identifies the list to which the entry belongs.
editbuffer_index	(Optional) ACE position in the ACL.
default-action	Keyword to remove default actions.
ip	Keyword to clear IP ACE default actions.
ipx	Keyword to clear IPX ACE default actions.
mac	Keyword to clear MAC-layer ACE default actions.
all	Keyword to clear all ACE default actions.
map	Keyword to detach an ACL.
mod/port	Number of the module and the port on the module.
vlan	Number of the VLAN.
all	Keyword to detach an ACL from all interfaces.

Defaults

The default is no ACLs are attached.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

Changes you make by entering this command are saved to NVRAM and hardware only after you enter the commit command.

Use the show qos acl editbuffer command to display the ACL list.

Examples

This example shows how to detach an ACL from all interfaces:

Console> (enable) clear qos acl map my_acl all
Hardware programming in progress...
ACL my_acl is detached from all interfaces.
Console> (enable) 
 

This example shows how to detach an ACL from a specific VLAN:

Console> (enable) clear qos acl map ftp_acl 4
Hardware programming in progress...
ACL ftp_acl is detached from vlan 4.
Console> (enable) 
 

This example shows how to delete a specific ACE:

Console> (enable) clear qos acl my_ip_acl 1
ACL my_ip_acl ACE# 1 is deleted.
my_ip_acl editbuffer modified. Use `commit' command to apply changes.
Console> (enable) 
 

This example shows how to delete an ACL:

Console> (enable) clear qos acl my_ip_acl
ACL my_ip_acl is deleted.
my_ip_acl editbuffer modified. Use `commit' command to apply changes.
Console> (enable) 
 

This example shows how to detach a specific ACL from all interfaces:

Console> (enable) clear qos acl map my_acl all
Hardware programming in progress...
ACL my_acl is detached from all interfaces.
Console> (enable) 
 

This example shows how to detach a specific ACL from a specific VLAN:

Console> (enable) clear qos acl map ftp_acl 4
Hardware programming in progress...
ACL ftp_acl is detached from vlan 4.
Console> (enable) 
 

This example shows how to delete IP ACE default actions configured by the set qos acl default-action command:

Console> (enable) clear qos acl default-action ip
Hardware programming in progress...
QoS default-action for IP ACL is restored to default setting.
Console> (enable) 

Related Commands

show qos acl editbuffer
commit
rollback

clear qos config

Use the clear qos config command to return the values set by the set qos command to the factory-set default values and delete the CoS assigned to MAC addresses.

This example shows how to return the values set by the set qos command to the factory-set default values and delete the CoS assigned to MAC addresses:

Console> (enable) clear qos config
This command will disable QoS and take values back to factory default.
Do you want to continue (y/n) [n]? y
QoS config cleared.
Console> (enable) 

Related Commands

set qos
show qos info

clear qos cos-dscp-map

Use the clear qos cos-dscp-map command to clear CoS-to-DSCP mapping set by the set qos cos-dscp-map command and return to the default setting.

Syntax Description

This command has no arguments or keywords.

Defaults

The default CoS-to-DSCP configuration is listed in Table 2-1.

Table 2-1: CoS-to-DSCP Default Mapping

CoS	0	1	2	3	4	5	6	7
DSCP	0	8	16	24	32	40	48	56

Console> (enable) clear qos cos-dscp-map
QoS cos-dscp-map setting restored to default.
Console> (enable) 

set qos cos-dscp-map
show qos maps

clear qos dscp-cos-map

Use the clear qos dscp-cos-map command to clear DSCP-to-CoS mapping set by the set qos dscp-cos-map command and return to the default setting.

Syntax Description

This command has no arguments or keywords.

Defaults

The default DSCP-to-CoS configuration is listed in Table 2-2.

Table 2-2: DSCP-to-CoS Default Mapping

DSCP	0 to 7	8 to 15	16 to 23	24 to 31	32 to 39	40 to 47	48 to 55	56 to 63
CoS	0	1	2	3	4	5	6	7

Console> (enable) clear qos dscp-cos-map
QoS dscp-cos-map setting restored to default.
Console> (enable) 

set qos dscp-cos-map
show qos maps

clear qos ipprec-dscp-map

Use the clear qos ipprec-dscp-map command to reset the mapping set by the set qos ipprec-dscp-map command to the default setting.

Syntax Description

This command has no arguments or keywords.

Defaults

The default IP precedence-to-DSCP configuration is listed in Table 2-3.

Table 2-3: IP Precedence-to-DSCP Default Mapping

IPPREC	0	1	2	3	4	5	6	7
DSCP	0	8	16	24	32	40	48	56

Console> (enable) clear qos ipprec-dscp-map
QoS ipprec-dscp-map setting restored to default.
Console> (enable) 

set qos ipprec-dscp-map
show qos maps

clear qos mac-cos

Use the clear qos mac-cos command to clear the values set by the set qos mac-cos command.

Syntax Description

dest_mac	Number of the destination host MAC address.
vlan	(Optional) Number of the VLAN.
all	Keyword to clear CoS values for all MAC/VLAN pairs.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If the vlan number is not entered, all entries for the MAC address are cleared.

Examples

This example shows how to clear the values set by the set qos mac-cos command and return to the factory-set default values for all MAC address and VLAN pairs:

Console> (enable) clear qos mac-cos all
All CoS to Mac/Vlan entries are cleared.
Console> (enable) 
 

This example shows how to clear the values set by the set qos mac-cos command and return to the factory-set default values for a specific MAC address:

Console> (enable) clear qos mac-cos 1-2-3-4-5-6 1
CoS to Mac/Vlan entry for mac 01-02-03-04-05-06 vlan 1 is cleared.
Console> (enable) 

Related Commands

set qos mac-cos
show qos mac-cos

clear qos map

Use the clear qos map command to return the values to the factory-set default values.

The default mappings for all ports are shown in Table 2-4 and Table 2-5 and applies to all ports.

Table 2-4: Default Transmit Queue and Drop Threshold Mapping of CoS Values

Port Type	Drop Threshold Type	Low Delay (Queue 2)	High Delay (Queue 1)	Priority Delay (Queue 3)
2q2t	Low drop (Threshold 2)	7, 6	3, 2	N/A
	High drop (Threshold 1)	5, 4	1, 0	N/A
1p2q2t	Low drop (Threshold 2)	7	3, 2	N/A
	High drop (Threshold 1)	5, 4	1, 0	5

Console> (enable) clear qos map 2q2t
This command will take map values back to factory default.
QoS map cleared.
Console> (enable) 

set qos map
show qos maps

clear qos policed-dscp-map

Use the clear qos policed-dscp-map to reset the policer-to-dscp mapping table to the defaults.

Syntax Description

This command has no arguments or keywords.

Defaults

The default is the identity function; for example, DSCP 63 to policed DSCP 63 and DSCP 62 to policed DSCP 62.

Command Types

Switch command.

Command Modes

Privileged.

Examples

This example shows how to reset the mapping to the defaults:

Console> (enable) clear qos policed-dscp-map
QoS policed-dscp-map setting restored to default.
Console> (enable) 

Related Commands

set qos policed-dscp-map
show qos maps

clear qos policer

Use the clear qos policer command set to clear policing rules from NVRAM.

Syntax Description

microflow microflow_name	Keyword and variable to specify the name of the microflow policing rule.
aggregate aggregate_name	Keyword and variable to specify the name of the aggregate policing rule.
all	Keyword to clear all policing rules.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

Policing is the process by which the switch limits the bandwidth consumed by a flow of traffic. Policing can mark or drop traffic.

You cannot clear an entry that is currently being used in an ACE. You must first detach the ACEs from the interface.

You cannot use the all keyword if a microflow rate limit is currently being used in an ACE.

Examples

This example shows how to clear a specific microflow policing rule:

Console> (enable) clear qos policer microflow my_micro 
my_micro QoS microflow policer cleared.
Console> (enable) 
 

This example shows how to clear all microflow policing rules:

Console> (enable) clear qos policer microflow all
All QoS microflow policers cleared.
Console> (enable) 
 

This example shows how to clear a specific aggregate policing rule:

Console> (enable) clear qos policer microflow my_micro 
my_micro QoS microflow policer cleared.
Console> (enable) 
 

This example shows how to clear all aggregate policing rules:

Console> (enable) clear qos policer aggregate all
All QoS aggregate policer cleared.
Console> (enable)

Related Commands

set qos policer
show qos policer

clear radius

Use the clear radius command set to clear one or all of the RADIUS servers from the RADIUS server table.

Syntax Description

server	Keyword to specify RADIUS servers.
all	Keyword to specify all RADIUS servers.
ipaddr	Number of the IP address or IP alias.
key	Keyword to specify the RADIUS shared key.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

ipaddr is an IP alias or an IP address in dot notation; for example, 101.102.103.104.

Examples

This example shows how to clear the RADIUS key:

Console> (enable) clear radius key
Radius server key cleared.
Console> (enable) 
 

This example shows how to clear a specific RADIUS server from the RADIUS server table:

Console> (enable) clear radius server 128.56.45.32
128.56.45.32 cleared from radius server table.
Console> (enable) 

Related Commands

set radius key
set radius server
show radius

clear rgmp statistics

Use the clear rgmp statistics command to clear RGMP statistics information for all VLANs.

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Examples

This example shows how to clear the RGMP statistics on the switch:

Console> (enable) clear rgmp statistics 
RGMP statistics cleared.
Console> (enable)

Related Commands

show rgmp statistics
set rgmp

clear security acl

Use the clear security acl command set to remove a specific ACE or all ACEs from an ACL and delete the ACLs from the edit buffer.

Syntax Description

all	Keyword to remove ACEs for all the ACLs.
acl_name	Name of the VACL whose ACEs are to be removed.
editbuffer_index	(Optional) Index number of the ACE in the ACL.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

Changes you make by entering this command are saved to NVRAM and hardware only after you enter the commit command.

Use the show security acl command to display the ACL list.

Examples

This example shows how to remove ACEs for all the ACLs:

Console> (enable) clear security acl all
All editbuffer modified. Use `commit' command to apply changes.
Console> (enable)
 

This example shows how to remove a specific ACE from a specific ACL:

Console> (enable) clear security acl IPACL1 2
IPACL1 editbuffer modified. Use `commit' command to apply changes.
Console> (enable)

Related Commands

commit
show security acl
rollback

clear security acl capture-ports

Use the clear security acl capture-ports command to remove a port from the capture port list.

Syntax Description

mod/ports...

Number of the module and the ports on the module.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

Configurations you make by entering this command are saved in NVRAM. This command does not require that you enter the commit command.

If you have a given number of ports and a few are removed, the remaining ports continue to capture the traffic.

Examples

This example shows how to remove entries from the capture port list:

Console> (enable) clear security acl capture-ports 1/1,2/1
Successfully cleared the following ports:
1/1,2/1
Console> (enable) 

Related Commands

show security acl capture-ports
set security acl capture-ports

clear security acl map

Use the clear security acl map command set to remove VACL-to-VLAN mapping.

Syntax Description

acl_name	Name of the VACL whose VLAN is to be deleted.
vlan	Number of the VLAN whose mapping is to be deleted.
all	Keyword to remove all VACL-to-VLAN mappings.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

Changes you make by entering this command are saved to NVRAM and do not require you to enter the commit command.

Use the show security acl command to display the ACL list.

Examples

This example shows how to remove a VACL-to-VLAN mapping from a specific VLAN:

Console> (enable) clear security acl map ip1 3
Map deletion in progress.
 
Successfully cleared mapping between ACL ip1 and VLAN 3.
Console> (enable)
 

This example shows how to remove a specific VACL-to-VLAN mapping from all VLANs:

Console> (enable) clear security acl map ip1
Map deletion in progress.
 
Successfully cleared mapping between ACL ip1 and VLAN 5.
 
Successfully cleared mapping between ACL ip1 and VLAN 8.
Console> (enable)
 

This example shows how to remove all VACL-to-VLAN mappings from a specific VLAN:

Console> (enable) clear security acl map 5
Map deletion in progress.
 
Successfully cleared mapping between ACL ipx1 and VLAN 5.
 
Successfully cleared mapping between ACL mac2 and VLAN 5.
Console> (enable)
 

This example shows how to remove all VACL-to-VLAN mappings from all VLANs:

Console> (enable) clear security acl map all
Map deletion in progress.
 
Successfully cleared mapping between ACL ip2 and VLAN 12.
 
Successfully cleared mapping between ACL ipx1 and VLAN 12.
 
Successfully cleared mapping between ACL ipx1 and VLAN 45.
 
Successfully cleared mapping between ACL ip2 and VLAN 47.
 
Successfully cleared mapping between ACL ip3 and VLAN 56.
Console> (enable)

Related Commands

commit
show security acl
rollback

clear snmp access

Use the clear snmp access command set to remove the access rights of an SNMP group with a specific security model and security level.

Syntax Description

-hex	(Optional) Keyword to display the groupname as a hexadecimal format.
groupname	SNMP access table name.
security-model v1 | v2c	Keywords to specify the security model v1 or v2c.
security-model v3	Keywords to specify security model v3.
noauthentication	Keyword to specify groups with security model type set to noauthentication.
authentication	Keyword to specify groups with security model type authentication protocol.
privacy	Keyword to specify groups with security model type privacy.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If you use special characters for groupname (nonprintable delimiters for this parameter), you must use a hexadecimal keyword, which is one or two hexadecimal digits separated by a colon (:); for example, 00:ab:34.

Examples

This example shows how to clear SNMP access for a group:

Console> (enable) clear snmp access cisco-group security-model v3 authentication
Cleared snmp access cisco-group version v3 level authentication.
Console> (enable) 

Related Commands

set snmp access
show snmp

clear snmp group

Use the clear snmp group command to remove the SNMP user from an SNMP group.

Syntax Description

-hex	(Optional) Keyword to display the groupname and username as a hexadecimal format.
groupname	Name of the SNMP group that defines an access control.
user	Keyword to specify the SNMP group user name.
username	Name of the SNMP user.
security model v1 | v2c | v3	Keywords to specify security model v1, v2c, or v3.

Defaults

This command has no default settings.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If you use special characters for groupname or username (nonprintable delimiters for these parameters), you must use a hexadecimal keyword, which is one or two hexadecimal digits separated by a colon (:); for example, 00:ab:34.

Examples

This example shows how to remove an SNMP user from a group:

Console> (enable) clear snmp group cisco-group user joe security-model v3
Cleared snmp group cisco-group user joe version v3.
Console> (enable)

Related Commands

set snmp group
show snmp group

clear snmp notify

Use the clear snmp notify command to clear the SNMP notifyname in the snmpNotifyTable.

Syntax Description

-hex	(Optional) Keyword to display the notifyname as a hexadecimal format.
notifyname	Identifier to index the snmpNotifyTable.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If you use special characters for notifyname (nonprintable delimiters for this parameter), you must use a hexadecimal keyword, which is one or two hexadecimal digits separated by a colon (:); for example, 00:ab:34.

Examples

This example shows how to clear an SNMP notifyname from the snmpNotifyTable:

Console> (enable) clear snmp notify joe
Cleared SNMP notify table joe.
Console> (enable) 

Related Commands

set snmp notify
show snmp notify

clear snmp targetaddr

Use the clear snmp targetaddr command to clear the SNMP target address entry in the TargetAddressTable.

Syntax Description

-hex	(Optional) Keyword to display the addrname as a hexadecimal format.
addrname	Name of the target agent; the maximum length is 32 bytes.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If you use special characters for addrname (nonprintable delimiters for this parameter), you must use a hexadecimal keyword, which is one or two hexadecimal digits separated by a colon (:); for example, 00:ab:34.

Examples

This example shows how to clear an SNMP target address entry in the snmpTargetAddressTable:

Console> (enable) clear snmp targetaddr joe
Cleared SNMP targetaddr joe.
Console> (enable)

Related Commands

set snmp targetaddr
show snmp targetaddr

clear snmp targetparams

Use the clear snmp targetparams command to clear the SNMP target parameters used in the snmpTargetParamsTable.

Syntax Description

-hex	(Optional) Keyword to display the paramsname as a hexadecimal format.
paramsname	Name of the target parameter in the snmpTargetParamsTable; maximum length is 32 bytes.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If you use special characters for paramsname (nonprintable delimiters for this parameter), you must use a hexadecimal keyword, which is one or two hexadecimal digits separated by a colon (:); for example, 00:ab:34.

Examples

This example shows how to remove the SNMP target parameters:

Console> (enable) clear snmp targetparams joe
Cleared SNMP targetparams table joe.
Console> (enable) 

Related Commands

set snmp targetparams
show snmp targetparams

clear snmp trap

Use the clear snmp trap command to clear an entry from the SNMP trap receiver table.

Syntax Description

rcvr_addr	IP address or IP alias of the trap receiver (the SNMP management station) to clear.
all	(Optional) Keyword to specify every entry in the SNMP trap receiver table.

Defaults

The default configuration has no entries in the SNMP trap receiver table.

Command Types

Switch command.

Command Modes

Privileged.

Examples

This example shows how to clear an entry from the SNMP trap receiver table:

Console> (enable) clear snmp trap 192.122.173.82
SNMP trap receiver deleted.
Console> (enable)

Related Commands

set snmp trap
show port counters
test snmp trap

clear snmp user

Use the clear snmp user command to remove an SNMP user.

Syntax Description

-hex	(Optional) Keyword to display the username as a hexadecimal format.
username	Name of the user on the host that connects to the agent.
remote engineid	(Optional) Keyword and variable to specify the username on a remote SNMP engine.

Defaults

If a remote engine ID is not provided, the default local SNMP engine ID is used.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If you use special characters for username (nonprintable delimiters for this parameter), you must use a hexadecimal keyword, which is one or two hexadecimal digits separated by a colon (:); for example, 00:ab:34.

Examples

This example shows how to remove a user from an SNMP group:

Console> (enable) clear snmp user joe
Cleared SNMP user joe.
Console> (enable) 
 

This example shows how to remove a user on a remote SNMP engine:

Console> (enable) clear snmp user joe remote 00:00:00:09:00:d0:00:4c:18:00
Cleared SNMP user.
Console> (enable) 

Related Commands

set snmp user
show snmp user

clear snmp view

Use the clear snmp view command to remove the MIB view entry from the vacmViewTreeFamilyTable.

Syntax Description

-hex	(Optional) Keyword to display the viewname as a hexadecimal format.
viewname	Name of a MIB view.
subtree	Name of the subtree.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If you use special characters for viewname (nonprintable delimiters for this parameter), you must use a hexadecimal keyword, which is one or two hexadecimal digits separated by a colon (:); for example, 00:ab:34.

A MIB subtree used with a mask defines a view subtree that can be in OID format or a text name mapped to a valid OID.

Examples

This example shows how to clear the SNMP MIB viewname:

Console> (enable) clear snmp view myview 1.1.3
Cleared snmp view myview with subtree 1.1.3
Console> (enable)

Related Commands

set snmp view
show snmp view

clear spantree portvlancost

Use the clear spantree portvlancost command to restore the default path cost to a VLAN on a port.

Console> (enable) clear spantree portvlancost 2/10 1-10
Port 2/10 VLANs 11-21 have path cost 6
Port 2/10 VLANs 1-10,22-1000 have path cost 10.
Console> (enable)
 
Console> (enable) clear spantree portvlancost 2/10
Port 2/10 VLANs 1-1000 have path cost 10.
Console> (enable)

set spantree portfast
show spantree statistics

clear spantree portvlanpri

Use the clear spantree portvlanpri command to reset the spanning tree port VLAN priority.

Console> (enable) clear spantree portvlanpri 1/2 23-40
Port 1/2 vlans 3,6-20,23-1000 using portpri 32
Port 1/2 vlans 1-2,4-5,21-22 using portpri 30
Console> (enable)

set spantree portvlanpri
show spantree

clear spantree root

Use the clear spantree root command to restore the switch priority and Spanning Tree Protocol parameters to the factory-set default values.

Console> (enable) clear spantree root 1-20 
VLANs 1-20 bridge priority set to 32678.
VLANs 1-20 bridge hello time set to 2 seconds.
VLANs 1-20 bridge max aging time set to 20 seconds.
VLANs 1-20 bridge forward delay set to 15 seconds.
 

Console> (enable) clear spantree root 22,24
VLANs 22,24 bridge priority set to 32678.
VLANs 22,24 bridge hello time set to 2 seconds.
VLANs 22,24 bridge max aging time set to 20 seconds.
VLANs 22,24 bridge forward delay set to 15 seconds.
Console> (enable)

set spantree root
show spantree

clear spantree statistics

Use the clear spantree statistics command to clear the spanning tree statistics.

Console> (enable) clear spantree statistics 1
Cleared all VLAN counters for VLAN 1
Statistics cleared for vlans 1
Console> (enable)

show spantree statistics

clear spantree uplinkfast

Use the clear spantree uplinkfast command to turn off the UplinkFast feature and to return the switch priority and port costs to the factory-set default values.

Console> (enable) clear spantree uplinkfast
This command will cause all portcosts, portvlancosts, and the 
bridge priority on all vlans to be set to default.
Do you want to continue (y/n) [n]? y
VLANs 1-1005 bridge priority set to 32768.
The port cost of all bridge ports set to default value.
The portvlancost of all bridge ports set to default value.
uplinkfast disabled for bridge.
Console> (enable)

set spantree uplinkfast
show spantree uplinkfast

clear tacacs key

Use the clear tacacs key command to remove the key setting used for TACACS+ authentication and encryption.

Console> (enable) clear tacacs key
TACACS server key cleared.
Console> (enable) 

set tacacs key
show tacacs

clear tacacs server

Use the clear tacacs server command to remove a host from the list of TACACS+ servers.

Console> (enable) clear tacacs server 170.1.2.20
170.1.2.20 cleared from TACACS table
Console> (enable)

show tacacs

clear timezone

Use the clear timezone command to return the time zone to its default, UTC.

Syntax Description

This command has no arguments or keywords.

Defaults

The default time zone is UTC.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

The clear timezone command functions only when NTP is running. If you set the time manually and NTP is disengaged, the clear timezone command has no effect.

Examples

This example shows how to clear the time zone:

Console> (enable) clear timezone
Timezone name and offset cleared.
Console> (enable)

Related Commands

set timezone

clear top

Use the clear top command to stop the TopN process.

Syntax Description

all	Keyword to stop all nonpending TopN results.
report_num	TopN report number to kill; valid values are from 1 to 5.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

The clear top all command will not kill any pending TopN reports. Only the reports with a done status are killed.

You can terminate TopN processes without the background option (use the show top background command to find out if the background option is used) by pressing Ctrl-C in the same Telnet/console session, or by entering the clear top [report_num] command from a separate Telnet/console session. The prompt is not printed before the TopN report is completely displayed. Other commands will be blocked until the report has been displayed.

Examples

This example shows how to stop the TopN 1 process from a console session:

Console> (enable) clear top 1
10/29/1998,12:05:38:MGMT-5: TopN report 1 killed by Console//.
Console> (enable)
 

This example shows how to stop the TopN 4 process from a Telnet session:

Console> (enable) clear top 4 
10/29/1998,12:06:00:MGMT-5: TopN report 4 killed by telnet/172.22.34.2/.
Console> (enable)

Related Commands

show top
show top report

clear trunk

Use the clear trunk command to restore a trunk port to its default trunk type and mode or to clear specific VLANs from the allowed VLAN list for a trunk port.

Traffic for the removed VLANs are not forwarded over a trunk port. To add VLANs that you have removed, use the set trunk mod/port vlans command.

Examples

This example shows how to clear VLANs 200 through 500 from the trunk port on port 2 of module 1:

Console> (enable) clear trunk 1/2 200-500
Removing Vlan(s) 200-500 from allowed list.
Port 1/2 allowed vlans modified to 1-199,501-1000.
Console> (enable)
 

This example shows how to clear the trunk on port 2 of module 1:

Console> (enable) clear trunk 1/2
Port(s) 1/2 trunk mode set to auto.
Port(s) 1/2 trunk type set to isl.
Console> (enable)

Related Commands

set trunk
show trunk

clear vlan

Use the clear vlan command to delete an existing VLAN from a management domain.

Syntax Description

vlan_num

Number of the VLAN; vaild values are from 2 to 1000.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

---

Caution  When you clear a VLAN, depending on the VTP configuration in the network, you might delete the VLAN from the entire VTP domain, which means every switch in the domain could delete that VLAN. If the configured switch is a VTP server and all or some of the other switches in the network are VTP clients, the change propagates to all the clients. For example, those clients will remove the VLAN from their configuration. Servers and transparent switches are unaffected; they keep the VLAN even if the VLAN is deleted by another server.

---

When you clear a VLAN, all ports assigned to that VLAN become inactive. However, the VLAN port assignments are retained until you move the ports to another VLAN. If the cleared VLAN is reactivated, all ports still configured on that VLAN are also reactivated. A warning is displayed if you clear a VLAN that exists in the mapping table.

When you clear a private VLAN (primary, isolated, or community), the ports are set to inactive and are not assigned to any VLAN. The private VLAN mappings for the selected VLAN are also cleared.

Examples

This example shows how to clear existing VLAN 4 from a management domain:

Console> (enable) clear vlan 4
This command will de-activate all ports on vlan 4
in the entire management domain
Do you want to continue(y/n) [n]? y
VTP: VLAN 4 deletion successful
Console> (enable) 

Related Commands

set vlan
show vlan

clear vlan mapping

Use the clear vlan mapping command to delete existing 802.1Q VLAN to ISL VLAN-mapped pairs.

Console> (enable) clear vlan mapping dot1q 444
Vlan Mapping 444 Deleted.
Console> (enable) 
 

Console> (enable) clear vlan mapping dot1q all
All Vlan Mapping Deleted.
Console> (enable) 

set vlan
show vlan

clear voicevlan

Use the clear voicevlan command to put all ports back to the 802.1p default values.

Syntax Description

mod/port	Number of the module and the port on the module.
vlan	Number of the auxiliary VLAN; valid values are from 1 to 4094.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If you specify the mod or port, only those specific modules or ports are changed to the 802.1p default value. The internal value is 0.

Examples

This example shows how to return all ports to the 802.1p default values for a specific auxiliary VLAN:

Console> (enable) clear voicevlan 2993
Voicevlan 2993 cleared. All ports belong to it configured for 802.1p.
Console> (enable) 
 

This example shows how to return all ports to the 802.1p default values for a specific module and port:

Console> (enable) clear voicevlan 3/4
Port 3/4 cleared from voicevlan 2993 and configured for 802.1p
Console> (enable) 
 

This example shows how to return all ports to the 802.1p default values for a specific module and range of ports:

Console> (enable) clear voicevlan 3/6-9
Ports 3/6-9 cleared from voice vlan 2993 and configured for 802.1p.
Console> (enable)

clear vtp pruneeligible

Use the clear vtp pruneeligible command to specify which VLANs in the VTP domain are ineligible for pruning.

VTP pruning causes information about each pruning-eligible VLAN to be removed from VTP updates if no stations belong to that VLAN out a particular switch port. Use the set vtp command to enable VTP pruning.

By default, VLANs 2 through 1000 are pruning eligible. Use the clear vtp pruneeligible command to make VLANs pruning ineligible.

If VLANs are pruning ineligible, use the set vtp pruneeligible command to make the VLANs pruning eligible again.

Examples

This example shows how to make VLANs 200 through 500 pruning ineligible:

Console> (enable) clear vtp pruneeligible 200-500
Vlans 1,200-500,1001-1005 will not be pruned on this device.
VTP domain Company modified.
Console> (enable)

Related Commands

set vtp
set vtp pruneeligible
show vtp domain

clear vtp statistics

Use the clear vtp statistics command to delete VTP statistics.

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Examples

This example shows how to clear VTP statistics:

Console> (enable) clear vtp statistics
vtp statistics cleared.
Console> (enable)

Related Commands

set vtp
show vtp statistics

Posted: Mon Sep 18 16:13:38 PDT 2000
Copyright 1989-2000©Cisco Systems Inc.