clear

Note
This command and its syntax is common to both the User
Executable and Privilege
Executable configuration modes.
Supported in the following platforms:
- Access Points —
AP505i, AP510i, AP510e, AP560i, AP6522, AP6562, AP7161, AP7502,
AP7522, AP7532, AP7562, AP7602, AP7612, AP7622, AP763, AP7662,
AP8163, AP8543, AP8533.
- Service Platforms
— NX5500, NX7500, NX9500, NX9600, VX9000
Syntax
clear [arp-cache|bonjour|cdp|counters|crypto|event-history|firewall|gre|ip|ipv6|l2tpv3-stats|lacp|license|lldp|mac-address-table|mint|role|rtls|spanning-tree|traffic-shape|vrrp]
clear arp-cache {on <DEVICE-NAME>}
clear bonjour cache {on <DEVICE-NAME>}
clear [cdp|lldp] neighbors {on <DEVICE-NAME>}
clear counters [all|ap|bridge|interface|radio|router|thread|wireless-client]
clear counters all {(on <DEVICE-OR-DOMAIN-NAME>)}
clear counters [bridge|router|thread]
clear counters interface <INF-TYPE> {(on <DEVICE-OR-DOMAIN-NAME>)}
clear counters [ap {<MAC>}|radio {<MAC/DEVICE-NAME>} {<1-3>}|wireless-client {<MAC>}] {(on <DEVICE-OR-DOMAIN-NAME>)}
clear crypto [ike|ipsec] sa
clear crypto ike sa [<IP>|all] {on <DEVICE-NAME>}
clear crypto ipsec sa {on <DEVICE-NAME>}
clear event-history
clear firewall [dhcp|dos|flows|neighbors]
clear firewall [dhcp|neighbors] snoop-table {on <DEVICE-NAME>}
clear firewall [dos stats|flows [ipv4|ipv6]] {on <DEVICE-NAME>}
clear gre stats {on <DEVICE-NAME>}
clear ip [bgp|dhcp|ospf]
clear ip bgp [<IP>|all|external|process]
clear ip bgp [<IP>|all|external] {in|on|out|soft}
clear ip bgp [<IP>|all|external] {in prefix-filter} {on <DEVICE-NAME>}
clear ip bgp [<IP>|all|external] {out} {(on <DEVICE-NAME>)}
clear ip bgp [<IP>|all|external] {soft {in|out}} {on <DEVICE-NAME>}
clear ip bgp process {on <DEVICE-NAME>}
clear ip dhcp bindings [<IP>|all] {on <DEVICE-NAME>}
clear ip ospf process {on <DEVICE-NAME>}
clear mac-address-table {address|interface|vlan} {on <DEVICE-NAME>}
clear ipv6 neighbor-cache {on <DEVICE-NAME>}
clear lacp [<1-4> counters|counters]
clear license [borrowed|lent to <BORROWER-CONTROLLER-NAME>] {on <DEVICE-NAME>}
clear l2tpv3-stats tunnel <TUNNEL-NAME> {session <SESSION-NAME>} {on <DEVICE-NAME>}
clear mac-address-table {address <MAC>|vlan <1-4094>} {on <DEVICE-NAME>}
clear mac-address-table {address|interface|mac-auth-state|vlan} {on <DEVICE-NAME>}
clear mac-address-table {address <MAC>|vlan <1-4094>} {on <DEVICE-NAME>}
clear mac-address-table {interface [<IN-NAME>|ge <1-2>|port-channel <1-2>| vmif <1-8>]} {on <DEVICE-NAME>}
clear mac-address-table mac-auth-state address <MAC> vlan <1-4094> {on <DEVICE-NAME>}
clear mint mlcp history {on <DEVICE-NAME>}
clear role ldap-stats {on <DEVICE-NAME>}
clear rtls [aeroscout|ekahau]
clear rtls [aeroscout|ekahau] {<MAC/DEVICE-NAME> {on <DEVICE-OR-DOMAIN-NAME>}|on <DEVICE-OR-DOMAIN-NAME>}
clear spanning-tree detected-protocols{interface|on}
clear spanning-tree detected-protocols {on <DEVICE-NAME>}
clear spanning-tree detected-protocols {interface [<INTERFACE-NAME>|ge <1-X>|me1|port-channel <1-X>|pppoe1|up1|vlan <1-4094>|wwan1]} {on <DEVICE-NAME>}
clear traffic-shape statistics class <1-4> {(on <DEVICE-NAME>)}
clear vrrp [error-stats|stats] {on <DEVICE-NAME>}
Parameters
clear arp-cache {on <DEVICE-NAME>}
arp-cache
|
Clears ARP (Address Resolution
Protocol) cache entries on a AP,
wireless controller, or service platform.
This protocol matches the layer 3 IP
addresses to the layer 2 MAC addresses.
|
on <DEVICE-NAME>
|
Optional. Clears ARP cache entries on a
specified device
|
|
clear bonjour cache {on <DEVICE-NAME>}
bonjour cache
|
Clears all Bonjour cached statistics. Once
cleared the system has to re-discover
available Bonjour services.
|
on <DEVICE-NAME>
|
Optional. Clears all Bonjour cached
statistics on a specified device
|
|
clear [cdp|lldp] neighbors {on <DEVICE-NAME>}
cdp
|
Clears CDP (Cisco Discovery
Protocol) (CDP) table entries
|
lldp
|
Clears LLDP (Link Layer Discovery
Protocol ) table entries
|
neighbors
|
Clears CDP or LLDP neighbor table entries
based on the option selected in the
preceding step
|
on <DEVICE-NAME>
|
Optional. Clears CDP or LLDP neighbor table
entries on a specified device
|
|
clear counters all {(on <DEVICE-OR-DOMAIN-NAME>)}
counters
|
Clears all counters on the logged device or
on all devices within a specified RF Domain.
These counters are: AP, bridge, interface,
radio, router, thread and wireless
clients.
|
on <DEVICE-OR-DOMAIN-NAME>
|
Optional. Specify the device name or the RF
Domain name.
Note:
If you do not specify a device name or an
RF Domain name, the system clears all
counters on the logged device.
|
|
clear counters [bridge|router|thread]
counters
|
Clears counters based on the parameters
passed. The options are: AP, bridge,
interface, radio, router, thread and
wireless clients.
|
[bridge|router|thread]
|
Select one of the following options:
-
bridge – Clears bridge counters. When
executed, this command resets the bridge
forwarding cache.
-
router – Clears router counters. When
executed, this command resets the router
counters.
-
thread – Clears thread counters. When
executed, this command resets the
pre-thread counters.
|
|
clear counters [ap {<MAC>}|radio {<MAC/DEVICE-NAME>} {<1-X>}|wireless-client {<MAC>}] {(on <DEVICE-OR-DOMAIN-NAME>)}
counters
|
Clears counters based on the parameters
passed. The options are: AP, bridge,
interface, radio, router, thread and
wireless clients.
|
ap <MAC>
|
Clears counters for all APs or a specified
AP
Note:
If no MAC address is specified, all AP
counters are cleared.
|
radio <MAC/DEVICE-NAME> <1-X>
|
Clears radio interface counters on a
specified device or on all devices
Note:
If no device name or MAC address is
specified, all radio interface counters
are cleared.
|
wireless-client <MAC>
|
Clears counters for all wireless clients or a
specified wireless client
Note:
If no MAC address is specified, all
wireless client counters are
cleared.
|
on <DEVICE-OR-DOMAIN-NAME>
|
The following option is common to all of the
above keywords:
|
|
clear counters interface <INF-TYPE> <INF-NUMBER>{(on <DEVICE-OR-DOMAIN-NAME>)}
counters
|
Clears counters based on the parameters
passed. The options are: AP, bridge,
interface, radio, router, thread and
wireless clients.
|
interface <INF-TYPE>
<INF-NUMBER>
|
Clears interface counters
-
<INF-TYPE> - Specify the
interface type as Ethernet, VLAN,
port-channel, usb, all, etc.
|
on <DEVICE-OR-DOMAIN-NAME>
|
Optional. Clears the specified interface
counters on a specified device or RF
Domain.
-
<DEVICE-OR-DOMAIN-NAME> –
Specify the name of the AP, wireless
controller, service platform, or RF
Domain.
|
|
clear crypto ike sa [<IP>|all] {on <DEVICE-NAME>}
crypto
|
Clears encryption module‘s cached
statistics
|
ike sa [<IP>|all]
|
Clears IKE (Internet Key
Exchange) SAs (security
associations)
|
on <DEVICE-NAME>
|
Optional. Clears IKE SA entries, for a
specified peer or all peers, on a specified
device
|
|
clear crypto ipsec sa {on <DEVICE-NAME>}
crypto
|
Clears encryption module‘s cached
statistics
|
ipsec sa {on <DEVICE-NAME>}
|
Clears IPsec(Internet Protocol
Security) database SAs
|
|
clear gre stats {on <DEVICE-NAME>}
gre stats
|
Clears GRE tunnel statistics
|
on <DEVICE-NAME>
|
Optional. Clears GRE tunnel statistics on a
specified device
|
|
clear event-history
event-history
|
Clears event history cache entries
|
|
clear firewall [dhcp|neighbors] snoop-table {on <DEVICE-NAME>}
firewall
|
Clears configured wireless firewall filter
statistics based on the parameters
passed
|
[dhcp|neighbors] snoop-table
|
Clears the following snoop-table database
|
on <DEVICE-NAME>
|
The following option is common to both the
'dhcp' and 'neighbor' parameters:
|
|
clear firewall [dos stats|flows [ipv4|ipv6]] {on <DEVICE-NAME>}
firewall
|
Clears configured wireless firewall filter
statistics based on the parameters
passed
|
dos stats
|
Clears DoS (Denial of Service)
statistics
|
flows [ipv4|ipv6]
|
Clears all established IPv4 or IPv6 firewall
session statistics
|
on <DEVICE-NAME>
|
The following option is common to both the
'dos' and 'flows' parameters:
|
|
clear ip bgp [<IP>|all|external] {in prefix-filter} {on <DEVICE-NAME>}
ip bgp [<IP>|all|external]
|
Clears on-going BGP sessions based on the
option selected
-
<IP> – Clears BGP session with
the peer identified by the <IP>
keyword. Specify the BGP peer‘s IP
address.
-
all – Clears all BGP peer
sessions
-
external – Clears eBGP
(external BGP) peer
sessions
This command is applicable only to the
NX9500, NX9600, and VX9000 platforms.
Modifications made to BGP settings (BGP
access lists, weight, distance, route-maps,
versions, routing policy, etc.) take effect
only after on-going BGP sessions are
cleared. The clear > ip > bgp command
clears BGP sessions. To reduce lose of route
updates during the process, use the ‘soft‘
option. Soft reconfiguration stores
inbound/outbound route updates to be
processed later and updated to the routing
table. This requires high memory usage.
|
in prefix-filter
|
Optional. Clears inbound route updates
|
on <DEVICE-NAME>
|
Optional. Clears route updates on a specified
device
|
|
clear ip bgp [<IP>|all|external] {out} {(on <DEVICE-NAME>)}
ip bgp [<IP>|all|external]
|
Clears on-going BGP sessions based on the
option selected
-
<IP> – Clears BGP session with
the peer identified by the <IP>
keyword. Specify the BGP peer‘s IP
address.
-
all – Clears all BGP peer
sessions
-
external – Clears eBGP peer
sessions
This command is applicable only to the
NX9500, NX9600, and VX9000 platforms.
|
out
|
Optional. Clears outbound route updates.
Optionally specify the device on which to
execute this command.
|
on <DEVICE-NAME>
|
The following keyword is recursive and
optional.
|
|
clear ip bgp [<IP>|all|external] {soft {in|out}} {on <DEVICE-NAME>}
ip bgp [<IP>|all|external]
|
Clears on-going BGP sessions based on the
option selected
-
<IP> – Clears BGP session with
the peer identified by the <IP>
keyword. Specify the BGP peer‘s IP
address.
-
all – Clears all BGP peer
sessions
-
external – Clears eBGP peer
sessions
This command is applicable only to the
NX9500, NX9600, and VX9000 platforms.
|
soft {in|out}
|
Optional. Initiates soft-reconfiguration of
route updates for the specified IP address
Modifications made to BGP settings (BGP
access lists, weight, distance, route-maps,
versions, routing policy, etc.) take effect
only after on-going BGP sessions are
cleared. The clear > ip > bgp command
clears BGP sessions. To reduce loss of route
updates during the process, use the ‘soft‘
option. Soft reconfiguration stores
inbound/outbound route updates to be
processed later and updated to the routing
table. This requires high memory usage.
|
on <DEVICE-NAME>
|
Optional. Initiates soft reconfiguration
inbound/outbound route updates on a
specified device
|
|
clear ip bgp process {on <DEVICE-NAME>}
ip bgp process
|
Clears all BGP processes running
This command is applicable only to the
NX9500, NX9600, and VX9000 platforms.
|
on <DEVICE-NAME>
|
Optional. Clears all BGP processes on a
specified device
|
|
clear ip dhcp bindings [<IP>|all] {on <DEVICE-NAME>}
ip
|
Clears a DHCP (Dynamic Host
Configuration Protocol) server's
IP address binding entries
|
dhcp bindings
|
Clears DHCP connections and server
bindings
|
<IP>
|
Clears specific address binding entries.
Specify the IP address to clear binding
entries.
|
all
|
Clears all address binding entries
|
on <DEVICE-NAME>
|
Optional. Clears a specified address binding
or all address bindings on a specified
device
|
|
clear ip ospf process {on <DEVICE-NAME>}
ip ospf process
|
Clears already enabled OSPF (Open
Shortest Path First) process and
restarts the process
|
on <DEVICE-NAME>
|
Optional. Clears OSPF process on a specified
device
OSPF is a link-state IGP (interior
gateway protocol). OSPF routes IP
packets within a single routing domain
(autonomous system), like an enterprise LAN.
OSPF gathers link state information from
neighboring routers and constructs a network
topology. The topology determines the
routing table presented to the Internet
Layer, which makes routing decisions based
solely on the destination IP address found
in IP packets.
|
|
clear ipv6 neighbor-cache {on <DEVICE-NAME>}
clear ipv6 neighbor-cache
|
Clears IPv6 neighbor cache entries
|
on <DEVICE-NAME>
|
Optional. Clears IPv6 neighbor cache entries
on a specified device
|
|
clear lacp [<1-4> counters|counters]
clear lacp [<1-4> counters|
counters]
|
Clears LACP (Link Aggregation Control
Protocol) counters/statistics for
a specified channel group or all channel
groups configured
-
<1-4> counters – Clears LACP
stats for a specified channel group.
Specify the port-channel index number
from 1 - 4. Note, LACP is supported only
on the NX5500, NX7500, NX9500, and
NX9600 model service platforms. However,
the NX9500 series service platforms
support only two (2) channel groups, and
the other model service platforms
support four (4) channel groups.
-
counters – Clears LACP stats for all
configured channel groups on the
device
|
|
clear license [borrowed|lent to <BORROWER-CONTROLLER-NAME>] {on <DEVICE-NAME>}
license
|
Releases borrowed licenses or revokes lent
licenses
|
borrowed
|
Releases all licenses borrowed by the logged
controller or by a specified controller
Note:
If you do not specify a controller name,
the command is executed on the
controller you have logged on to.
|
lent to <BORROWING-CONTROLLER-NAME>
|
Revokes licenses lent to a specified
controller
|
on <DEVICE-NAME>
|
Optional. This option is common to both of
the above parameters.
|
|
clear l2tpv3-stats tunnel <TUNNEL-NAME> {session <SESSION-NAME>} {on <DEVICE-NAME>}
l2tpv3-stats
|
Clears L2TPv3 tunnel statistics for a
specified L2TPv3 tunnel
|
tunnel <TUNNEL-NAME>
|
Specifies the tunnel name
|
session <SESSION-NAME>
|
Optional. Clears a specific session
statistics in the specified L2TPv3
tunnel.
|
on <DEVICE-NAME>
|
This option is common to all of the above
parameters.
|
|
clear mac-address-table{address <MAC>|vlan <1-4094>} {on <DEVICE-NAME>}
mac-address-table
|
Clears MAC address forwarding table data
based on the parameters passed
Use this command to clear the following: all
or specified MAC addresses from the system,
all MAC addresses on a specified interface,
all MAC addresses on a specified VLAN, or
the authentication state of a MAC
address.
|
address <MAC>
|
Optional. Clears a specified MAC address from
the MAC address table.
Note:
If executed without specifying any MAC
address(es), all MAC addresses from the
MAC address table will be removed.
|
vlan <1-4094>
|
Optional. Clears all MAC addresses for a
specified VLAN
|
on <DEVICE-NAME>
|
Optional. Clears a single MAC entry or all
MAC entries, for the specified VLAN on a
specified device
|
|
clear mac-address-table {interface [<IF-NAME>|ge <1-X>|port-channel <1-X>]} {on <DEVICE-NAME>}
mac-address-table
|
Clears MAC address forwarding table data
based on the parameters passed
Use this command to clear the following: all
or specified MAC addresses from the system,
all MAC addresses on a specified interface,
all MAC addresses on a specified VLAN, or
the authentication state of a MAC
address.
|
interface
|
Clears all MAC addresses for the selected
interface. Use the options available to
specify the interface.
|
<IF-NAME>
|
Clears MAC address forwarding table for the
specified layer 2 interface (Ethernet
port)
|
ge <1-X>
|
Clears MAC address forwarding table for the
specified GigabitEthernet interface
Note:
The number of GE interfaces supported
varies for different device types.
|
port-channel <1-X>
|
Clears MAC address forwarding table for the
specified port-channel interface
Note:
The number of port-channel interfaces
supported varies for different device
types.
|
on <DEVICE-NAME>
|
Optional. Clears the MAC address forwarding
table, for the selected interface, on a
specified device
|
|
clear mac-address-table mac-auth-state address <MAC> vlan <1-4904> {on <DEVICE-NAME>}
mac-address-table mac-auth-state address
<MAC> vlan <1-4904>
|
Clears MAC addresses learned from a
particular VLAN when WLAN MAC authentication
and captive-portal fall back is enabled
Access points/controllers provide WLAN access
to clients whose MAC address has been
learned and stored in their MAC address
tables. Use this command to clear a
specified MAC address on the MAC address
table. Once cleared the client has to
re-authenticate, and is provided access only
on successful authentication.
|
on <DEVICE-NAME>
|
Optional. Clears the specified MAC address on
a specified device
Note:
If a device is not specified, the system
clears the MAC address on all
devices.
|
|
clear mint mlcp history {on <DEVICE-NAME>}
mint
|
Clears MiNT related information
|
mlcp history
|
Clears MLCP (MiNT Link Creation
Protocol ]) client history
|
on <DEVICE-NAME>
|
Optional. Clears MLCP client history on a
specified device
|
|
clear role ldap-stats {on <DEVICE-NAME>}
role ldap-stats
|
Clears LDAP (Lightweight Directory
Access Protocol) server
statistics
|
on <DEVICE-NAME>
|
Optional. Clears LDAP server statistics on a
specified device
|
|
clear rtls [aeroscout|ekahau] {<MAC/DEVICE-NAME> {on <DEVICE-OR-DOMAIN-NAME>}| on <DEVICE-OR-DOMAIN-NAME>}
rtls
|
Clears RTLS (Real Time Location
Service) statistics
|
aeroscout
|
Clears RTLS Aeroscout statistics
|
ekahau
|
Clears RTLS Ekahau statistics
|
<MAC/DEVICE-NAME>
|
This keyword is common to the ‘aeroscout' and
‘ekahau' parameters.
|
on <DEVICE-OR-DOMAIN-NAME>
|
This keyword is common to the ‘aeroscout' and
‘ekahau' parameters.
-
on <DEVICE-OR-DOMAIN-NAME> –
Optional. Clears Aeroscout or Ekahau
RTLS statistics on a specified AP,
wireless controller, service platform,
or RF Domain
-
<DEVICE-OR-DOMAIN-NAME> –
Specify the name of the AP, wireless
controller, service platform, or RF
Domain.
|
|
clear spanning-tree detected-protocols {on <DEVICE-NAME>}
spanning-tree
|
Clears spanning tree entries on an interface
and restarts protocol migration
|
detected-protocols
|
Restarts protocol migration
|
on <DEVICE-NAME>
|
Optional. Clears spanning tree entries on a
specified device
|
|
clear spanning-tree detected-protocols {interface [<INTERFACE-NAME>|ge <1-X>|me1|port-channel <1-X>|pppoe1|up1|vlan <1-4094>|wwan1]} {on <DEVICE-NAME>}
spanning-tree
|
Clears spanning tree entries on an interface
and restarts protocol migration
|
detected-protocols
|
Restarts protocol migration
|
interface [<INTERFACE-NAME>| ge
<1-X>|me1| port-channel <1-X>|
pppoe1|up1| vlan <1-4094>| wwan1]
|
Optional. Clears spanning tree entries on
different interfaces
-
<INTERFACE-NAME> – Clears
detected spanning tree entries on a
specified interface. Specify the
interface name.
-
ge <1-X> – Clears detected
spanning tree entries for the selected
GigabitEthernet interface. Select the
GigabitEthernet interface index from 1 -
X.
-
me1 – Clears FastEthernet interface
spanning tree entries
-
port-channel <1-X> – Clears
detected spanning tree entries for the
selected port channel interface. Select
the port channel index from 1 - X. The
number of port-channel interfaces
supported varies for different device
types.
-
pppoe1 – Clears detected spanning
tree entries for PPPoE
(Point-to-Point Protocol over
Ethernet) interface
-
up1 – Clears detected spanning tree
entries for the WAN Ethernet
interface
-
vlan <1-4094> – Clears detected
spanning tree entries for the selected
VLAN interface. Select a SVI
(Switch Virtual Interface)
VLAN ID from 1- 4094.
-
wwan1 – Clears detected spanning tree
entries for wireless WAN interface.
|
on <DEVICE-NAME>
|
Optional. Clears spanning tree entries on a
specified device
|
|
clear traffic-shape statistics class <1-4> {(on <DEVICE-NAME>)
traffic-shape statistics
|
Clears traffic shaping statistics
|
class <1-4>
|
Clears traffic shaping statistics for a
specific traffic class
|
on <DEVICE-NAME>
|
Optional. Clears traffic shaping statistics
for the specified traffic class on a
specified device
|
|
clear vrrp [error-stats|stats] {on <DEVICE-NAME>}
vrrp
|
Clears VRRP (Virtual Router Redundancy
Protocol) statistics
VRRP allows a pool of routers to be
advertized as a single virtual router. This
virtual router is configured by hosts as
their default gateway. VRRP elects a master
router, from this pool, and assigns it a
virtual IP address. The master router routes
and forwards packets to hosts on the same
subnet. When the master router fails, one of
the backup routers is elected as the master
and its IP address is mapped to the virtual
IP address.
|
error-stats
|
Clears global error statistics
|
stats
|
Clears VRRP related statistics
|
on <DEVICE-NAME>
|
This following keywords are common to the
‘error-stats' and ‘stats' parameters:
|
|
Examples
ap510-133B3B>show event-history
EVENT HISTORY REPORT
Generated on '2019-01-08 13:31:16 UTC' by 'admin'
2019-01-08 13:07:43 ap510-133B3B SYSTEM LOGIN Successfully logged in user 'admin' with privilege 'superuser' from 'conso'
2019-01-01 00:02:00 ap510-133B3B SYSTEM COLD_START System Cold start. System came up at Jan 01 00:02:00 2019
2019-01-01 00:00:27 ap510-133B3B NSM IFUP Interface ge1 is up
2019-01-01 00:00:26 ap510-133B3B NSM IFUP Interface ge1 is up
2019-01-01 00:00:23 ap510-133B3B DIAG NEW_LED_STATE LED state message RADIO_2_52G_LED_ON from module DOT11
2019-01-01 00:00:23 ap510-133B3B RADIO RADIO_STATE_CHANGE Radio 'ap510-133B3B:R2' changing state from 'Initializing' to 'On'
2019-01-01 00:00:23 ap510-133B3B DIAG NEW_LED_STATE LED state message RADIO_2_52G_LED_ON from module DOT11
2019-01-01 00:00:23 ap510-133B3B RADIO RADIO_STATE_CHANGE Radio 'ap510-133B3B:R2' changing state from 'On' to 'Initializing'
2019-01-01 00:00:23 ap510-133B3B DIAG NEW_LED_STATE LED state message RADIO_1_24G_NOT_CONFIG from module DOT11
2019-01-01 00:00:23 ap510-133B3B RADIO RADIO_STATE_CHANGE Radio 'ap510-133B3B:R1' changing state from 'Initializing' to 'Off(no wlans mapped)'
--More--
ap510-133B3B>
ap510-133B3B>clear event-history
ap510-133B3B>show event-history
EVENT HISTORY REPORT
Generated on '2019-01-08 13:32:20 UTC' by 'admin'
ap510-133B3B>