Table Of Contents

clear catalyst6000 traffic-meter

clear counters

clear fm netflow counters

clear interface gigabitethernet

clear interface vlan

clear ip access-template

clear ip arp inspection log

clear ip arp inspection statistics

clear ip cef epoch full

clear ip cef inconsistency

clear ip dhcp snooping binding

clear ip flow stats

clear ip igmp group

clear ip igmp snooping statistics

clear ip mroute

clear ip msdp peer

clear ip msdp sa-cache

clear ip msdp statistics

clear ip pim auto-rp

clear ip pim snooping statistics

clear ip pim snooping vlan

clear lacp counters

clear logging ip access-list cache

clear mac-address-table dynamic

clear mls acl counters

clear mls cef ip accounting per-prefix

clear mls ip multicast bidir-rpcache

clear mls ip multicast group

clear mls ip multicast statistics

clear mls nde flow counters

clear mls netflow

clear mls qos

clear mls statistics

clear mls stats

clear pagp

clear platform netint

clear port-security dynamic

clear spanning-tree detected-protocol

clear top counters interface report

clear vlan counters

clock

collect top counters interface

control-plane

copy /noverify

02

clear catalyst6000 traffic-meter

To clear the traffic meter counters, use the clear catalyst6000 traffic-meter command.

clear catalyst6000 traffic-meter

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Examples

This example shows how to clear the traffic meter counters:

Router# clear catalyst6000 traffic-meter

Router#

clear counters

To clear the interface counters, use the clear counters command.

clear counters [{interface interface-number} | {null interface-number} | {port-channel number} | {vlan vlan-id}]

Syntax Description

interface	(Optional) Interface type; the valid value is gigabitethernet.
interface-number	Module and port number; the valid value is 1/N where N is the port number.
null interface-number	(Optional) Specifies the null interface; the valid value is 0.
port-channel number	(Optional) Specifies the channel interface; valid values are a maximum of 64 values ranging from 1 to 256.
vlan vlan-id	(Optional) Specifies the VLAN ID; valid values are from 1 to 4094.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Usage Guidelines

This command clears all the current interface counters from the interface unless you specify the interface.

---

Note This command does not clear counters that are retrieved using SNMP but only those counters that appear when you enter the show queueing interface command.

---

Examples

This example shows how to clear all interface counters:

Router# clear counters

Clear "show interface" counters on all interfaces [confirm]y

Router# 

This example shows how to clear counters on a specific interface:

Router# clear counters vlan 200

Clear "show interface" counters on this interface [confirm]y

Router# 

Related Commands

Command	Description
show queueing interface	Displays queueing information.

clear fm netflow counters

To clear the NetFlow counters, use the clear fm netflow counters command.

clear fm netflow counters

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Examples

This example shows how to clear the NetFlow counters:

Router# clear fm netflow counters

Router#

clear interface gigabitethernet

To clear the hardware logic on a Gigabit Ethernet IEEE 802.3z interface, use the clear interface gigabitethernet command.

clear interface gigabitethernet interface-number

Syntax Description

interface-number

Gigabit Ethernet interface number; the valid value is 1.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Examples

This example shows how to clear the hardware logic on a Gigabit Ethernet IEEE 802.3z interface:

Router# clear interface gigabitethernet 1

Router# 

Related Commands

Command	Description
show interfaces status	Displays the interface status or a list of interfaces in an error-disabled state on LAN ports only.

clear interface vlan

To clear the hardware logic on a VLAN, use the clear interface vlan command.

clear interface vlan vlan-id

Syntax Description

vlan-id

VLAN ID; valid values are from 1 to 4094.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Examples

This example shows how to clear the hardware logic on a specific VLAN:

Router# clear interface vlan 5

Router#

Related Commands

Command	Description
show interfaces status	Displays the interface status or a list of interfaces in an error-disabled state on LAN ports only.

clear ip access-template

To clear statistical information on the access list, use the clear ip access-template command.

clear ip access-template access-list

Syntax Description

access-list

Access list number; valid values are from 100 to 199 for an IP extended-access list and from 2000 to 2699 for an expanded-range IP extended-access list.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Examples

This example shows how to clear statistical information on the access list:

Router# clear ip access-template 201

Router#

Related Commands

Command	Description
show mls netflow	Displays configuration information about the NetFlow hardware.

clear ip arp inspection log

To clear the status of the log buffer, use the clear ip arp inspection log command.

clear ip arp inspection log

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Examples

This example shows how to clear the contents of the log buffer:

Router# clear ip arp inspection log

Router# 

Related Commands

Command	Description
arp access-list	Configures an ARP ACL for ARP inspection and QoS filtering and enters the ARP ACL configuration submode.
show ip arp inspection log	Displays the status of the log buffer.

clear ip arp inspection statistics

To clear the dynamic ARP inspection statistics, use the clear ip arp inspection statistics command.

clear ip arp inspection statistics [vlan vlan-range]

Syntax Description

vlan vlan-range

(Optional) Specifies the VLAN range.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Examples

This example shows how to clear the DAI statistics from VLAN 1:

Router# clear ip arp inspection statistics vlan 1

Router#

Related Commands

Command	Description
arp access-list	Configures an ARP ACL for ARP inspection and QoS filtering and enters the ARP ACL configuration submode.
clear ip arp inspection log	Clears the status of the log buffer.
show ip arp inspection log	Displays the status of the log buffer.

clear ip cef epoch full

To begin a new epoch and increment the epoch number for all tables (including the adjacency table), use the clear ip cef epoch full command.

clear ip cef epoch full

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Usage Guidelines

Use the clear ip cef epoch full command when you want to rebuild a table. This command allows old and new table entries to be distinguished within the same data structure and allows you to retain the old CEF database table while constructing the new table.

These show commands display epoch information:

•show ip cef summary—Displays the table epoch for a specific FIB table.

•show ip cef detail—Displays the epoch value for each entry of a specific FIB table.

•show adjacency summary—Displays the adjacency table epoch.

•show adjacency detail—Displays the epoch value for each entry of the adjacency table.

Examples

This example shows the output before and after you clear the epoch table and increment the epoch number:

Router# show ip cef epoch

CEF epoch information:

Table:Default-table

  Table epoch:2 (164 entries at this epoch)

Adjacency table

  Table epoch:1 (33 entries at this epoch)

Router# clear ip cef epoch full

Router# show ip cef epoch

CEF epoch information:

Table:Default-table

  Table epoch:3 (164 entries at this epoch)

Adjacency table

  Table epoch:2 (33 entries at this epoch)

Router# 

Related Commands

Command	Description
show adjacency detail	Displays the information about the protocol detail and timer.
show adjacency summary	Displays a summary of CEF-adjacency information.
show ip cef detail	Displays detailed FIB entry information.
show ip cef epoch	Displays the epoch information for the adjacency table and all FIB tables.
show ip cef summary	Displays a summary of the FIB.

clear ip cef inconsistency

To clear the statistics and records for the CEF-consistency checker, use the clear ip cef inconsistency command.

clear ip cef inconsistency

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Usage Guidelines

This command clears the statistics and records that accumulate when you enable the ip cef table consistency-check command.

Examples

This example shows how to clear all statistics and records for the CEF-consistency checker:

Router# clear ip cef inconsistency

Router# 

Related Commands

Command	Description
ip cef table consistency-check	Enables the CEF-table consistency-checker types and parameters.

clear ip dhcp snooping binding

To clear the DHCP-snooping binding-entry table without disabling DHCP snooping, use the clear ip dhcp snooping binding command.

clear ip dhcp snooping binding

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Examples

This example shows how to clear the DHCP-snooping binding-entry table:

Router# clear ip dhcp snooping binding

Router# 

clear ip flow stats

To clear the NetFlow-switching statistics, use the clear ip flow stats command.

clear ip flow stats

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Usage Guidelines

The show ip cache flow command displays the NetFlow-switching statistics.

Examples

This example shows how to clear the NetFlow-switching statistics:

Router# clear ip flow stats

Router# 

Related Commands

Command	Description
show ip cache flow	Displays a summary of the NetFlow cache-flow entries.

clear ip igmp group

To delete the entries for the IGMP-group cache, use the clear ip igmp group command.

clear ip igmp [vrf vrf-name] group [{interface interface-number} | {group-name | group-address} {loopback interface-number} | {null interface-number} | {port-channel number} | {vlan vlan-id}]

Syntax Description

vrf vrf-name	(Optional) Specifies the name that is assigned to the multicast VPN routing and forwarding (VRF) instance.
interface	(Optional) Interface type; the valid value is gigabitethernet.
interface-number	Module and port number; the valid value is 1/N where N is the port number.
group-name	(Optional) Group name as defined in the DNS hosts table or with the ip host command.
group-address	(Optional) Address of the multicast group in four-part, dotted notation.
loopback interface-number	(Optional) Specifies the loopback interface; valid values are from 0 to 2147483647.
null interface-number	(Optional) Specifies the null interface; the valid value is 0.
port-channel number	(Optional) Specifies the channel interface; valid values are a maximum of 64 values ranging from 1 to 256.
vlan vlan-id	(Optional) Specifies the VLAN ID; valid values are from 1 to 4094.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Usage Guidelines

The IGMP cache contains a list of hosts on the directly connected LAN. If the router has joined a group, that group is also listed in the cache.

To delete all entries from the IGMP cache, specify the clear ip igmp group command with no arguments.

Examples

This example shows how to clear the entries for a specific group from the IGMP cache:

Router# clear ip igmp group 224.0.255.1

Router# 

This example shows how to clear the IGMP-group cache entries from a specific interface of the IGMP-group cache:

Router# clear ip igmp group gigabitethernet 1/2

Router# 

Related Commands

Command	Description
ip host	Defines a static hostname-to-address mapping in the host cache.
show ip igmp groups	Deletes the entries for the IGMP-group cache.
show ip cache flow	Displays the multicast groups with receivers that are directly connected to the router and that were learned through IGMP.

clear ip igmp snooping statistics

To clear the IGMP-snooping statistics, use the clear ip igmp snooping statistics command.

clear ip igmp snooping statistics [vlan vlan-id]

Syntax Description

vlan vlan-id

(Optional) Specifies the VLAN ID; valid values are from 1 to 4094.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Usage Guidelines

If you do not enter a VLAN, the IGMP-snooping statistics for all VLANs is cleared.

Examples

This example shows how to clear the IGMP-snooping statistics for all VLANs:

Router# clear ip igmp snooping statistics

Router# 

This example shows how to clear the IGMP-snooping statistics for a specific VLAN:

Router# clear ip igmp snooping statistics vlan 300

Router# 

Related Commands

Command	Description
show ip igmp snooping statistics	Displays information about IGMPv3 statistics.

clear ip mroute

To delete entries from the IP multicast routing table, use the clear ip mroute command.

clear ip mroute [vrf vrf-name] {* | group} [source]

Syntax Description

vrf vrf-name	(Optional) Specifies the name that is assigned to the multicast VPN routing and forwarding (VRF) instance.
*	Deletes all entries from the IP multicast routing table.
group	Name or IP address of the multicast group; see the "Usage Guidelines" section for additional information.
source	(Optional) Name or address of a multicast source that is sending to the group; see the "Usage Guidelines" section for additional information.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Usage Guidelines

The group argument specifies one of the following:

•Name of the multicast group as defined in the DNS hosts table or with the ip host command.

•IP address of the multicast group in four-part, dotted notation.

If you specify a group name or address, you can also enter the source argument to specify a name or address of a multicast source that is sending to the group. A source does not need to be a member of the group.

Examples

This example shows how to delete all entries from the IP multicast routing table:

Router# clear ip mroute *

Router# 

This example shows how to delete all sources on the 255.255.255.224 subnet that are sending to the multicast group 224.2.205.42 from the IP multicast routing table. This example shows how to delete all sources on network 228.3, not individual sources.

Router# clear ip mroute 224.2.205.42 228.3.0.0

Router# 

Related Commands

Command	Description
ip host	Defines a static host name-to-address mapping in the host cache.
show ip mroute	Displays the information about the IP-multicast routing table.

clear ip msdp peer

To clear the TCP connection to the specified MSDP peer, use the clear ip msdp peer command.

clear ip msdp [vrf vrf-name] peer {peer-address | peer-name}

Syntax Description

vrf vrf-name	(Optional) Specifies the name that is assigned to the multicast VPN routing and forwarding (VRF) instance.
peer-address | peer-name	IP address or name of the MSDP peer to which the TCP connection is cleared.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Usage Guidelines

This command closes the TCP connection to the peer, resets all the MSDP peer statistics, and clears the input and output queues to and from the MSDP peer.

Examples

This example shows how to clear the TCP connection to the MSDP peer at 224.15.9.8:

Router# clear ip msdp peer 224.15.9.8

Router#

Related Commands

Command	Description
ip host	Configures an MSDP peer.

clear ip msdp sa-cache

To clear MSDP source active cache entries, use the clear ip msdp sa-cache command.

clear ip msdp [vrf vrf-name] sa-cache [group-address | group-name]

Syntax Description

vrf vrf-name	(Optional) Specifies the name that is assigned to the multicast VPN routing and forwarding (VRF) instance.
group-address | group-name	(Optional) Multicast group address or name for which source active entries are cleared from the source active cache.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Usage Guidelines

In order to have any source active entries in the cache to clear, you must enable source active caching by entering the ip msdp cache-sa-state command.

If no multicast group is identified by group address or name, all source active cache entries are cleared.

Examples

This example shows how to clear the source active entries for the multicast group 224.5.6.7 from the cache:

Router# clear ip msdp sa-cache 224.5.6.7

Router# 

Related Commands

Command	Description
ip host	Configures an MSDP peer.
ip msdp cache-sa-state	Creates a source-active state on the router.
show ip msdp sa-cache	Displays (S, G) state learned from MSDP peers.

clear ip msdp statistics

To clear statistics counters for one or all of the MSDP peers without resetting the sessions, use the clear ip msdp statistics command.

clear ip msdp [vrf vrf-name] statistics [peer-address | peer-name]

Syntax Description

vrf vrf-name	(Optional) Specifies the name that is assigned to the multicast VPN routing and forwarding (VRF) instance.
peer-address | peer-name	(Optional) Address or name of the MSDP peers whose statistics counters, reset count, and input/output count are cleared.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Examples

This example shows how to clear the counters for the peer named sanjose:

Router# clear ip msdp statistics sanjose

Router# 

Related Commands

Command	Description
show ip msdp sa-cache	Displays (S, G) state learned from MSDP peers.

clear ip pim auto-rp

To delete entries from the Auto-RP cache, use the clear ip pim auto-rp command.

clear ip pim [vrf vrf-name] auto-rp rp-address

Syntax Description

vrf vrf-name	(Optional) Specifies the name that is assigned to the multicast VPN routing and forwarding (VRF) instance.
rp-address	Rendevous-point address; see the "Usage Guidelines" section for additional information.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Usage Guidelines

When you enter the rp-address argument, only the entries related to the rendezvous point at this address are cleared. If you omit this argument, the entire Auto-RP cache is cleared.

Examples

This example shows how to delete all entries from the Auto-RP cache:

Router# clear ip pim auto-rp 224.5.6.7

Router#

Related Commands

Command	Description
show ip pim rp mapping	Displays the mappings for the PIM group to the active rendezvous points.

clear ip pim snooping statistics

To delete the IP PIM-snooping global statistics, use the clear ip pim snooping statistics command.

clear ip pim snooping statistics

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Examples

This example shows how to clear the IP PIM statistics:

Router# clear ip pim snooping statistics

Router# 

Related Commands

Command	Description
ip pim snooping (global configuration mode)	Enables PIM snooping globally.
show ip pim snooping statistics	Displays statistical information about IP PIM snooping.

clear ip pim snooping vlan

To delete the IP PIM-snooping entries on a specific VLAN, use the clear ip pim snooping vlan command.

clear ip pim snooping vlan vlan-id mac-address gda-address

clear ip pim snooping vlan vlan-id mroute {* | {group-addr src-addr} {{downstream-neighbor ip-addr} | {upstream-neighbor ip-addr}}}

clear ip pim snooping vlan vlan-id neighbor {* | ip-addr}

Syntax Description

vlan-id	VLAN ID; valid values are from 1 to 4094.
mac-address gda-address	Specifies the multicast group MAC address to delete.
mroute *	Deletes all mroute entries.
mroute group-addr src-addr	Deletes the mroute entries at the specified group and source IP address.
downstream-neighbor ip-addr	Deletes the entries at the specified downstream neighbor originating the join/prune message.
upstream-neighbor ip-addr	Deletes the entries at the specified upstream neighbor receiving the join/prune message.
neighbor *	Deletes all neighbors.
neighbor ip-addr	Deletes the neighbor at the specified IP address.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Examples

This example shows how to clear the IP PIM statistics on a specific VLAN:

Router# clear ip pim snooping vlan 25 statistics 

Router# 

Related Commands

Command	Description
ip pim snooping (interface configuration mode)	Enables PIM snooping on a specific interface.
show ip pim snooping	Displays information about IP PIM snooping.

clear lacp counters

To clear the statistics for all interfaces belonging to a specific channel group, use the clear lacp counters command.

clear lacp [channel-group] counters

Syntax Description

channel-group

(Optional) Channel group number; valid values are from 1 to 256.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Usage Guidelines

If you do not specify a channel-group, all channel groups are cleared.

If you enter this command for a channel group that contains members in PAgP mode, the command is ignored.

Examples

This example shows how to clear the statistics for a specific group:

Router# clear lacp 1 counters

Router# 

Related Commands

Command	Description
show lacp	Displays LACP information.

clear logging ip access-list cache

To clear all the entries from the OAL cache and send them to the syslog, use the clear logging ip access-list cache command.

clear logging ip access-list cache

Syntax Description

This command has no keywords or arguments.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Examples

This example shows how to clear all the entries from the OAL cache and send them to the syslog:

Router# clear logging ip access-list cache

Router#

Related Commands

Command	Description
logging ip access-list cache (global configuration mode)	Configures the OAL parameters globally.
logging ip access-list cache (interface configuration mode)	Enables an OAL-logging cache on an interface that is based on direction.
show logging ip access-list	Displays information about the logging IP access list.

clear mac-address-table dynamic

To clear the dynamic address entries from the MAC-address table in Layer 2, use the clear mac-address-table dynamic command.

clear mac-address-table dynamic [{address mac-addr} | {interface interface interface-number} | {protocol {assigned | ip | other}}] [vlan vlan-id]

Syntax Description

address mac-addr	(Optional) Specifies the MAC address.
interface interface	(Optional) Specifies the interface type; the valid value is gigabitethernet.
interface-number	Module and port number; the valid value is 1/N where N is the port number.
protocol assigned	(Optional) Specifies the assigned protocol bucket accounts for such protocols as DECnet, Banyan VINES, and AppleTalk.
protocol ip	(Optional) Specifies the protocol type of the entries to clear.
protocol other	(Optional) Specifies the protocol types (other than IP) of the entries to clear.
vlan vlan-id	(Optional) Specifies the VLAN ID; valid values are from 1 to 4094.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(18)ZU	Support for this command was introduced.

Usage Guidelines

The protocol {assigned | ip | other} keywords are not supported.

Enter the clear mac-address-table dynamic command with no arguments to remove all dynamic entries from the table.

Examples

This example shows how to clear all dynamic Layer 2 entries for a specific interface (e2/1) and protocol type (IP):

Router# clear mac-address-table dynamic interface gigabitethernet1/1 protocol ip

Router# 

Related Commands

Command	Description
mac-address-table aging-time	Configures the aging time for entries in the Layer 2 table.
mac-address-table static	Adds static entries to the MAC-address table or configures a static MAC address with IGMP snooping disabled for that address.
show mac-address-table	Displays the information about the MAC-address table.

clear mls acl counters

To clear the MLS ACL counters, use the clear mls acl counters command.

clear mls acl counters {{all [module num]} | {interface interface interface-number} [{loopback interface-number} | {null interface-number} | {port-channel number} | {vlan vlan-id}]}

Syntax Description

all	Clears all the MLS ACL counters for all interfaces.
module num	(Optional) Clears all the MLS ACL counters for the specified DFC.
interface interface	(Optional) Specifies the interface type; the valid value is gigabitethernet.
interface-number	Module and port number; the valid value is 1/N where N is the port number.
loopback interface-number	(Optional) Specifies the loopback interface; valid values are from 0 to 2147483647.
null interface-number	(Optional) Specifies the null interface; the valid value is 0.
port-channel number	(Optional) Specifies the channel interface; valid values are a maximum of 64 values ranging from 1 to 256.
vlan vlan-id	(Optional) Specifies the VLAN ID; valid values are from 1 to 4094.

Defaults