{"id":1399,"date":"2022-02-15T02:52:00","date_gmt":"2022-02-15T10:52:00","guid":{"rendered":"https:\/\/jmcristobal.com\/?p=1399"},"modified":"2022-02-14T18:44:06","modified_gmt":"2022-02-15T02:44:06","slug":"cisco-ios-commands","status":"publish","type":"post","link":"http:\/\/ec2-52-7-70-250.compute-1.amazonaws.com\/es\/2022\/02\/15\/cisco-ios-commands\/","title":{"rendered":"Cisco IOS commands"},"content":{"rendered":"

Commands Used to Monitor and Manipulate the CAM Table Task<\/span><\/strong>

Display all MAC addresses learned on a specific interface
Switch# show mac address-table dynamic interface type number<\/p>\n\n\n\n

Display the current CAM table size
Switch# show mac address-table count<\/p>\n\n\n\n

Enter a static CAM table entry
Switch(config)# mac address-table static mac-address vlan vlan-id { drop | interface type number}<\/p>\n\n\n\n

Clear a CAM entry
Switch# clear mac address-table dynamic [ address mac-address | interface type number | vlan vlan-id ]\n\n\n\n

Display TCAM utilization
Switch# show platform tcam utilization<\/p>\n\n\n\n

Display the current memory template
Switch# show sdm prefer<\/p>\n\n\n\n

Configure a preferred memory template
Switch()# sdm prefer template<\/p>\n\n\n\n

<\/p>\n\n\n\n

Switch Port Configuration Commands<\/span><\/strong><\/p>\n\n\n\n

Select a port.
Switch(config)# interface type member\/module\/number<\/p>\n\n\n\n

Select multiple ports.
Switch(config)# interface range type member\/module\/number[, type member\/module\/number \u2026]
or
Switch(config)# interface range type member\/module\/first-number \u2013 last-number<\/p>\n\n\n\n

Define an interface macro.
Switch(config)# define interface-range macro-name type member\/module\/number[, type member\/module\/number\u2026] [ type member\/module\/first-number \u2013 lastnumber] [\u2026]\n\n\n\n

Switch(config)# interface range macro macro-na me<\/p>\n\n\n\n

Identify port.
Switch(config-if)# description description-string<\/p>\n\n\n\n

Set port speed.
Switch(config-if)# speed {10 | 100 | 1000 | auto}<\/p>\n\n\n\n

Set port mode.
Switch(config-if)# duplex {auto | full | half}<\/p>\n\n\n\n

Detect port error conditions.
Switch(config-if)# errdisable detect cause [all| causename]\n\n\n\n

Automatically recover from errdisable.
Switch(config-if)# errdisable recovery cause [ all| causename]
Switch(config-if)# errdisable recovery interval seconds<\/p>\n\n\n\n

Manually recover from errdisable.
Switch(config-if)# shutdown
Switch(config-if)# no shutdown<\/p>\n\n\n\n

Display ports in errdisable state
Switch(config)# show interface status err-diablead<\/p>\n\n\n\n

<\/p>\n\n\n\n

Neighbor Discovery Commands<\/span><\/strong><\/p>\n\n\n\n

Display CDP neighbor information.
Switch# show cdp neighbors [ type member\/module\/number] [detail]\n\n\n\n

Control CDP operation globally.
Switch(config)# [no] cdp run<\/p>\n\n\n\n

Control CDP operation on an interface.
Switch(config-if)# [ no] cdp enable<\/p>\n\n\n\n

Display LLDP neighbor information.
Switch(config)# show lldp neighbors [ type member\/module\/number] [ detail]\n\n\n\n

Control LLDP operation globally.
Switch(config)# [ no] lldp run<\/p>\n\n\n\n

Control LLDP operation on an interface.
Switch(config-if)# [ no] lldp { receive | Transmit}<\/p>\n\n\n\n

<\/p>\n\n\n\n

Power over Ethernet Commands<\/span><\/strong><\/p>\n\n\n\n

Set PoE behavior.
Switch(config-if)# power inline { auto | static} [max milliwatts]\n\n\n\n

Disable PoE on a switch port
Switch(config-if)# power inline never<\/p>\n\n\n\n

Display PoE status.
Switch# show power inline [ type member\/mod\/num] [detail]\n\n\n\n

<\/p>\n\n\n\n

VLAN and Trunking Configuration Commands<\/span><\/strong>

Create VLAN.
Switch(config)# vlan vlan-num
Switch(config-vlan)# name vlan-nameAssign port to VLAN.
Switch(config)# interface type member\/module\/number
Switch(config-if)# switchport mode access
Switch(config-if)# switchport access vlan vlan-num<\/p>\n\n\n\n


Configure trunk.
Switch(config)# interface type member\/module\/number
Switch(config-if)# switchport trunk encapsulation {isl | dot1q | negotiate }
Switch(config-if)# switchport trunk native vlan vlan-id
Switch(config-if)# switchport trunk allowed vlan { vlan-list | all | {add | except | remove} vlan-list }
Switch(config-if)# switchport mode {trunk | dynamic {desirable | auto }}<\/p>\n\n\n\n


Define the trunking on a port to a Cisco IP phone.
Switch(config-if)# switchport voice vlan { vlan-id | dot1p | untagged | none }<\/p>\n\n\n\n

<\/p>\n\n\n\n

VLAN and Trunking Troubleshooting<\/span><\/strong>

Verify VLAN configuration.
Switch# show vlan id vlan-id
Switch# show vlan [ brief ]\n\n\n\n

Verify active trunk parameters.
Switch# show interface type member\/module\/number trunk<\/p>\n\n\n\n

Compare trunk configuration and active parameters.
Switch# show interface type member\/module\/number switchport<\/p>\n\n\n\n

Verify DTP operation.
Switch# show dtp [ interface type member\/module\/nombre]\n\n\n\n

<\/p>\n\n\n\n

VTP Configuration Commands<\/span><\/strong>

Define the VTP domain.
Switch(config)# vtp domain domain-nameSet the VTP mode.
Switch(config)# vtp mode { server | client | transparent | off }<\/p>\n\n\n\n

Define an optional VTP password.
Switch(config)# vtp password password [ hidden | secret ]\n\n\n\n

Configure VTP version.
Switch(config)# vtp version { 1 | 2 | 3 }<\/p>\n\n\n\n

Enable VTP pruning.
Switch(config)# vtp pruning<\/p>\n\n\n\n

Select VLANs eligible for pruning on a trunk interface.
Switch(config)# interface type member\/ module\/number
Switch(config-if)# switchport trunk pruning vlan { add | except | none | remove } vlan-list<\/p>\n\n\n\n

<\/p>\n\n\n\n

STP Configuration Commands<\/span><\/strong>

Enable STP.
Switch(config)# spanning-tree vlan-id

Set bridge priority.
Switch(config)# spanning-tree vlan vlan-id priority bridge-priority

Set root bridge (macro).
Switch(config)# spanning-tree vlan vlan-id root { primary | secondary } [ diameter diameter ]

Set port cost.
Switch(config-if)# spanning-tree [ vlan vlan-id ] cost cost

Set port priority.
Switch(config-if)# spanning-tree [ vlan vlan-id ] port-priority port-priority

Set STP timers.
Switch(config)# spanning-tree [ vlan vlan-id ] hello-time seconds
Switch(config)# spanning-tree [ vlan vlan-id ] forward-time seconds
Switch(config)# spanning-tree [ vlan vlan-id ] max-age seconds

Set PortFast on an interface.
Switch(config-if)# spanning-tree portfast

Set UplinkFast on a switch.
Switch(config)# spanning-tree uplinkfast [ max-update-rate pkts-per-second ]

Set BackboneFast on a switch.
Switch(config)# spanning-tree backbonefast<\/p>\n\n\n\n


STP Protection Configuration Commands<\/span><\/strong>

Enable Root Guard. \u2014
Switch(config-if)# spanningtree guarda root

Enable BPDU Guard.
Switch(config)# spanning-tree portfast bpduguard default
Switch(config-if )# spanningtree bpduguard enable<\/p>\n\n\n\n

Enable Loop Guard.
Switch(config)# spanning-tree loopguard default
Switch(config-if)# spanningtree guard loop<\/p>\n\n\n\n

Enable UDLD.
Switch(config)# udld {enable | aggressive | message time seconds}
Switch(config-if)# udld {enable | aggressive | disable}<\/p>\n\n\n\n

Enable BPDU filtering.
Switch(config)# spanning-tree bpdufilter default
Switch(config-if)# spanningtree bpdufilter enable<\/p>\n\n\n\n

<\/p>\n\n\n\n

STP Protection Activity Commands<\/span><\/strong><\/p>\n\n\n\n

Look for ports that have been put in an inconsistent state.
Switch# show spanning-tree inconsistentports<\/p>\n\n\n\n

Display the global BPDU Guard, BPDU filter, and Loop Guard states.
Switch# show spanning-tree summary<\/p>\n\n\n\n

Show UDLD status.
Switch# show udld [ type mod\/num ]\n\n\n\n

Reenable all ports that UDLD has errdisabled.
Switch# udld reset<\/p>\n\n\n\n

<\/p>\n\n\n\n

RSTP Configuration<\/span><\/strong>

Define an edge port.
Switch(config-if)# spanning-tree portfast

Override a port type.
Switch(config-if)# spanning-tree link-type point-to-point<\/p>\n\n\n\n

<\/p>\n\n\n\n

MST Region Configuration Commands<\/span><\/strong>

Enable MST on a switch.
Switch(config)# spanning-tree mode mst<\/p>\n\n\n\n

Enter MST configuration mode.
Switch(config)# spanning-tree mst configuration<\/p>\n\n\n\n

Name the MST region.
Switch(config-mst)# name name<\/p>\n\n\n\n

Set the configuration revision number.
Switch(config-mst)# revision version
<\/p>\n\n\n\n

EtherChannel Configuration Commands Task<\/span><\/strong>

Select a load-balancing method for the switch.
port-channel load-balance method<\/p>\n\n\n\n

Use a PAgP mode on an interface.
channel-protocol PAgP
channel-group number mode { on | {{ auto | desirable } [ non-silent ]}}<\/p>\n\n\n\n

Assign the LACP system priority.
lacp system-priority priority<\/p>\n\n\n\n

Use an LACP mode on an interface.
channel-protocol LACP
channel-group number mode { on | passive | active }
lacp port-priority priority<\/p>\n\n\n\n

Configure EtherChannel Guard
[ no ] spanning-tree etherchannel guard misconfig<\/p>\n\n\n\n

<\/p>\n\n\n\n

Inter-VLAN Routing Configuration Commands<\/span><\/strong>

Put a port into Layer 2 mode.
Switch(config-if)# switchport<\/p>\n\n\n\n

Put a port into Layer 3 mode.
Switch(config-if)# no switchport<\/p>\n\n\n\n

Define an SVI.
Switch(config)# interface vlan vlan-id<\/p>\n\n\n\n

Multilayer Switching Verification Commands<\/strong><\/span>

Show a Layer 2 port status.
Switch# show interface type member\/ module\/number switchport<\/p>\n\n\n\n

Show a Layer 3 port status.
Switch# show interface type member\/ module\/number<\/p>\n\n\n\n

Show an SVI status.
Switch# show interface vlan vlan-id<\/p>\n\n\n\n

View the FIB contents.
Switch# show ip cef<\/p>\n\n\n\n

View FIB information for an interface.
Switch# show ip cef [ type member\/ module\/number | vlan vlan-id ] [ detail ]\n\n\n\n

View FIB information for an IP prefix.
Switch# show ip cef [ prefix-ip prefixmask ] [ longer-prefixes ] [ detail ]\n\n\n\n

View FIB adjacency information.
Switch# show adjacency [ type member\/ module\/number | vlan vlan-id ] [ summary | detail ]\n\n\n\n

View counters for packets not switched by CEF.
Switch# show cef not-cef-switched<\/p>\n\n\n\n

<\/p>\n\n\n\n

DHCP Commands Related to IPv4<\/span><\/strong>

Exclude addresses from a DHCP server scope.
Switch(config-if)# ip dhcp excluded-address start-ip end-ip

Define a DHCP server scope.
Switch(config-if)# ip dhcp pool pool-name<\/p>\n\n\n\n

Identify the IP subnet for the server scope.
Switch(config-dhcp)# network ip-address subnet-mask<\/p>\n\n\n\n

Identify the default router used in the server scope.
Switch(config-dhcp)# default-router ip-address [ ip-address2 ] [ ip-address3 ] \u2026<\/p>\n\n\n\n

Define the DHCP server lease time.
Switch(config-dhcp )# lease {infinite | { days [hours [ minutes ]]}}<\/p>\n\n\n\n

Define a DHCP option.
Switch(dhcp-config)# option option-num value<\/p>\n\n\n\n

Configure a manual DHCP binding.
Switch(config)# ip dhcp pool pool-name
Switch(dhcp-config)# host ip-address mask
Switch(dhcp-config)# client-identifier identifier
Switch(dhcp-config)# exit<\/p>\n\n\n\n

Enable DHCP relay on a Layer 3 interface.
Switch(config-if)# ip helper-address ip-address<\/p>\n\n\n\n

Display current DHCP bindings.
Switch# show ip dhcp binding<\/p>\n\n\n\n

Manually clear a DHCP binding.
Switch# clear ip dhcp binding { * | ip-address }<\/p>\n\n\n\n

DHCP Commands Related to IPv6
Define an IPv6 address prefix on a Layer 3 interface.
Switch(config)# interface type member\/module\/number
Switch(config-if)# ipv6 address ipv6-prefix<\/p>\n\n\n\n

Define a DHCPv6 pool.
Switch(config)# ipv6 dhcp pool pool-name
Switch(config-dhcpv6)# address prefix ipv6-prefix
Switch(config-dhcpv6)# dns-server dns-address
Switch(config-dhcpv6)# domain-name name<\/p>\n\n\n\n

Bind a DHCPv6 pool to a Layer 3 interface.
Switch(config)# interface type member\/module\/number
Switch(config-if)# ipv6 address ipv6-address
Switch(config-if)# ipv6 dhcp server pool-name<\/p>\n\n\n\n

Enable DHCPv6 Lite options.
Switch(config-if)# ipv6 nd other-config-Flag<\/p>\n\n\n\n

Enable DHCPv6 relay on a Layer 3 interface.
Switch(config-if)# ipv6 dhcp relay destination ipv6- address<\/p>\n\n\n\n

Manually clear a DHCPv6 binding.
Switch# clear ipv6 dhcp binding { * | ipv6-address }<\/p>\n\n\n\n

Display a summary of DHCPv6 pool activity.
Switch# show ipv6 dhcp pool<\/p>\n\n\n\n

Display current DHCPv6 bindings.
Switch# show ipv6 dhcp binding [ ipv6-address ]\n\n\n\n

<\/p>\n\n\n\n

Switch Logging Configuration Commands<\/span><\/strong><\/p>\n\n\n\n

Log to the console port.
Switch(config)# logging console severity<\/p>\n\n\n\n

Log to a buffer.
Switch(config)# logging buffered severity
Switch(config)# logging buffered size<\/p>\n\n\n\n

Display the logging buffer.
Switch# show logging<\/p>\n\n\n\n

Log to a syslog server.
Switch(config)# logging host
Switch(config)# logging trap severity<\/p>\n\n\n\n

<\/p>\n\n\n\n

Time Clock Configuration Commands<\/span><\/strong><\/p>\n\n\n\n

Display the clock.
Switch# show clock [detail]\n\n\n\n

Set the local time zone.
Switch(config)# clock timezone name offset-hours [ offsetminutes ]
Switch(config)# clock summer-time name date start-month date year hh:mm end-month day year hh:mm [ offset-minutes ]\n\n\n\n

Synchronize with an NTP server.
Switch(config)# ntp server ip-address [ prefer ] [ version { 3 | 4 }]\n\n\n\n

Verify NTP synchronization.
Switch# show ntp status Switch# show ntp associations<\/p>\n\n\n\n

Use NTP authentication.
Switch(config)# ntp authentication-key key-number md5 keystring
Switch(config)# ntp authenticate
Switch(config)# ntp trusted-key key-number
Switch(config)# ntp server ip-address key key-number<\/p>\n\n\n\n

Limit NTP access.
Switch(config)# access-list acl-num permit ip-address mask
Switch(config)# ntp access-group {serve-only | serve | peer | query-only } acl-num<\/p>\n\n\n\n

Add time stamps to logging messages.
Switch(config)# service timestamps log datetime [ localtime ] [ show-timezone ] [ msec ] [ year ]\n\n\n\n

<\/p>\n\n\n\n

SNMP Configuration Commands<\/span><\/strong><\/p>\n\n\n\n

Define SNMPv1 or SNMPv2C access.
Switch(config)# snmp-server community community string [ ro | rw ] [ access-list-number ]\n\n\n\n

Define an SNMPv1 trap receiver.
Switch(config)# snmp-server host host-address community-string [ trap-type ]\n\n\n\n

Define an SNMPv2C trap or inform receiver.
Switch(config)# snmp-server host host-address [ informs ] version 2c community-string<\/p>\n\n\n\n

Definir una vista SNMPv3
Switch(config)# snmp-server view view-name oid-tree<\/p>\n\n\n\n

Definir un grupo de usuarios
Switch(config)# snmp-server group group-name v3 { noauth | auth | priv } [ read read-view ] [ write write-view ] [ notify notify-view ] [ access access-list ]\n\n\n\n

Definir un usuario
Switch(config)# snmp-server user user-name group-name v3 auth {md5 | sha auth-password priv { des | 3des | aes { 128 | 192 | 256 } priv-password [ access-list ]\n\n\n\n

Define an SNMPv3 trap or inform receiver.
Switch(config)# snmp-server host host-address [ informs ] version 3 { noauth | auth | priv } user-name [ trap-type ]\n\n\n\n

<\/p>\n\n\n\n

IP SLA Configuration and Monitoring Commands<\/span><\/strong><\/p>\n\n\n\n

Enable IP SLA responder.
Switch(config)# ip sla responder<\/p>\n\n\n\n

Authenticate IP SLA operations.
Switch(config)# key chain chain-name
Switch(config-keychain)# key key-number
Switch(config-keychain-key)# key-string string
Switch(config-keychain-key)# exit
Switch(config-keychain)# exit
Switch(config)# ip sla key-chain chain-name<\/p>\n\n\n\n

Define a new IP SLA operation.
Switch(config)# ip sla operation-number<\/p>\n\n\n\n

Define an ICMP echo test.
Switch(config-ip-sla)# icmp-echo destination-ip-addr [ sourceip-addr]\n\n\n\n

Define a UDP jitter test.
Switch(config-ip-sla)# udp-jitter destination-ip-addr dest-udpport [ source-ip source-ip-addr] [ source-port source-udp-port] [num-packets number-of-packets] [ interval packet-interval]\n\n\n\n

Define UDP jitter codec.
Switch(config-ip-sla)# udp-jitter destination-ip-addr dest-udp-port codec { g711alaw| g711ulaw| g729a}<\/p>\n\n\n\n

Set the test frequency.
Switch(config-ip-sla)# frequency seconds<\/p>\n\n\n\n

Set the test schedule.
Switch(config)# ip sla schedule operation-number [ life { forever | seconds}] [ start-time { hh:mm[:ss] [ month day| day month] | pending| now| after hh:mm:ss}] [ ageout seconds] [ recurring]\n\n\n\n

Display the IP SLA test configuration.
Switch# show ip sla configuration [ operation-number]\n\n\n\n

Display the results of an IP SLA test operation.
Switch# show ip sla statistics [operation-number] [aggregated] [detail]\n\n\n\n

Configure a local SPAN session source.
Switch(config)# monitor session session-number source { interface type member\/mod\/num | vlan vlan-id }[ rx | tx | both ]\n\n\n\n

Configure a local SPAN session destination.
Switch(config)# monitor session session-number destination interface type member\/mod\/num [ encapsulation replicate ]\n\n\n\n

Enable ingress traffic from the destination interface.
\u2026 ingress { dot1q vlan vlan-id | isl | untagged vlan vlan-id }<\/p>\n\n\n\n

Filter VLANs from a trunk link as a SPAN source.
Switch(config)# monitor session session-number filter vlan vlan-range<\/p>\n\n\n\n

Create an RSPAN VLAN.
Switch(config)# vlan vlan-id
Switch(config-vlan)# remote-span<\/p>\n\n\n\n

Configure an RSPAN session on the source switch.
Switch(config)# monitor session session-number source { interface type member\/mod\/num | vlan vlan-id }[ rx | tx | both ]
Switch(config)# monitor session session-number destination remote vlan rspan-vlan-id<\/p>\n\n\n\n

Configure an RSPAN session on the destination switch.
Switch(config)# monitor session session-number source remote vlan rspan-vlan-id
Switch(config)# monitor session session-number destination interface type member\/mod\/num [ encapsulation replicate]\n\n\n\n

Display active SPAN sessions.
Switch# show monitor [ session { session-number | all | local | range range-list | remote }] [ detail ]\n\n\n\n

Delete SPAN sessions.
Switch(config)# no monitor session { session | range sessionrange } | local | all }<\/p>\n\n\n\n

<\/p>\n\n\n\n

Supervisor Redundancy Configuration Commands<\/span><\/strong><\/p>\n\n\n\n

Enable supervisor redundancy.
Switch(config)# redundancy<\/p>\n\n\n\n

Set the supervisor redundancy mode.
Switch(config-red)# mode { rpr| rpr-plus| sso}<\/p>\n\n\n\n

Display supervisor redundancy states.
Switch# show redundancy states<\/p>\n\n\n\n

Enable supervisor redundancy synchronization.
Switch(config-red)# main-cpu
Switch(config-r-mc)# auto-sync { startup-config | config-register| bootvar}<\/p>\n\n\n\n

<\/p>\n\n\n\n

HSRP Configuration Commands Task Command Syntax<\/span><\/strong><\/p>\n\n\n\n

Set the HSRP priority.
Switch(config-if)# standby group priority priority<\/p>\n\n\n\n

Set the HSRP timers.
Switch(config-if)# standby group timers hello holdtime<\/p>\n\n\n\n

Allow router preemption.
Switch(config-if)# standby group preempt [ delay seconds ]\n\n\n\n

Use group authentication.
Switch(config-if)# standby group authentication string<\/p>\n\n\n\n

Adjust priority by tracking an interface.
Switch(config-if)# standby group track type member\/module\/number decrementvalue<\/p>\n\n\n\n

Assign the virtual router address.
Switch(config-if)# standby group ip ip address [ secondary ]\n\n\n\n

<\/p>\n\n\n\n

VRRP Configuration Commands Task Command Syntax<\/span><\/strong><\/p>\n\n\n\n

Assign a VRRP router priority (default 100).
Switch(config-if)# vrrp group priority level<\/p>\n\n\n\n

Alter the advertisement timer (default 1 second).
Switch(config-if)# vrrp group timers advertise [ msec ] interval<\/p>\n\n\n\n

Learn the advertisement interval from the master router.
Switch(config-if)# vrrp group timers learn<\/p>\n\n\n\n

Disable preempting (default is to preempt).
Switch(config-if)# no vrrp group preempt<\/p>\n\n\n\n

Change the preempt delay (default 0 seconds).
Switch(config-if)# vrrp group preempt [ delay seconds ]\n\n\n\n

Use authentication for advertisements.
Switch(config-if)# vrrp group authentication string<\/p>\n\n\n\n

Assign a virtual IP address.
Switch(config-if)# vrrp group ip ip-address [ secondary ]\n\n\n\n

<\/p>\n\n\n\n

GLBP Configuration Commands Task Command Syntax<\/span><\/strong><\/p>\n\n\n\n

Assign a GLBP priority.
Switch(config-if)# glbp group priority level<\/p>\n\n\n\n

Allow GLBP preemption.
Switch(config-if)# glbp group preempt [ delay minimum seconds ]\n\n\n\n

Define an object to be tracked.
Switch(config)# track object-number interface type member\/module\/number { line-protocol | ip routing }<\/p>\n\n\n\n

Define the weighting thresholds.
Switch(config-if)# glbp group weighting maximum [ lower lower ] [ upper upper ]\n\n\n\n

Track an object.
Switch(config-if)# glbp group weighting track object-number [ decrement value ]\n\n\n\n

Choose the load-balancing method.
Switch(config-if)# glbp group loadbalancing [ round-robin | weighted | hostdependent ]\n\n\n\n

Assign a virtual router address.
Switch(config-if)# glbp group ip [ ip-address [ secondary ]]\n\n\n\n

<\/p>\n\n\n\n

Port Security Configuration Commands Task Command Syntax<\/span><\/strong><\/p>\n\n\n\n

Enable port security on an interface.
Switch(config-if)# switchport port-security<\/p>\n\n\n\n

Set the maximum number of learned addresses.
Switch(config-if)# switchport port-security maximum max-addr<\/p>\n\n\n\n

Define a static MAC address.
Switch(config-if)# switchport port-security macaddress mac-addr<\/p>\n\n\n\n

Define an action to take.
Switch(config-if)# switchport port-security violation {shutdown | restrict | protect}<\/p>\n\n\n\n

Display port security status.
Switch# show port-security [ interface type member\/module\/number ]\n\n\n\n

<\/p>\n\n\n\n

Port-Based Authentication Configuration Commands Task Command Syntax<\/span><\/strong><\/p>\n\n\n\n

Define a method list for 802.1X.
Switch(config)# aaa authentication dot1x default group radius<\/p>\n\n\n\n

Globally enable 802.1X.
Switch(config)# dot1x system-auth-control<\/p>\n\n\n\n

Define the 802.1X behavior on a port.
Switch(config-if)# dot1x port-control {forceauthorized | force- unauthorized | auto }<\/p>\n\n\n\n

Support more than one host on a port.
Switch(config-if)# dot1x host-mode multi-host<\/p>\n\n\n\n

Display 802.1X interface status.
Switch# show dot1x [ all ] [ interface type member\/ module\/number ]\n\n\n\n

<\/p>\n\n\n\n

Storm Control Configuration Commands Task Command Syntax<\/span><\/strong><\/p>\n\n\n\n

Enable a Storm Control threshold on an interface.
Switch(config-if)# storm-control { broadcast | multicast | unicast } level { level [ level-low ] | bps bps [ bps-low ] | pps pps [ pps-low ]}<\/p>\n\n\n\n

Define an action for Storm Control. (By default, frames are dropped if this command is not present.)
Switch(config-if)# storm-control action { shutdown | trap }<\/p>\n\n\n\n

Display Storm Control status.
Switch# show storm-control [ interface-id ] [ broadcast | multicast | unicast ]\n\n\n\n

<\/p>\n\n\n\n

VLAN ACL Configuration Commands Task Command Syntax<\/span><\/strong><\/p>\n\n\n\n

Define a VACL.
Switch(config)# vlan access-map map-name [ sequencenumber ]\n\n\n\n

Define a matching condition.
Switch(config-access-map)# match {ip address { acl-number | acl-name }} | { mac address acl-name }}<\/p>\n\n\n\n

Define an action.
Switch(config-access-map)# action { drop | forward [ capture ] | redirect type mod\/num }<\/p>\n\n\n\n

Apply the VACL to VLANs.
Switch(config)# vlan filter map-name vlan-list vlan-list<\/p>\n\n\n\n

<\/p>\n\n\n\n

Private VLAN Configuration Commands Task Command Syntax<\/span><\/strong><\/p>\n\n\n\n

Define a secondary VLAN.
Switch(config)# vlan vlan-id
Switch(config-vlan)# private-vlan { isolated | community }<\/p>\n\n\n\n

Define a primary VLAN; associate it with secondary VLANs.
Switch(config)# vlan vlan-id
Switch(config-vlan)# private-vlan primary
Switch(config-vlan)# private-vlan association { secondary-vlan-list | add secondary-vlan-list | remove secondary-vlan-list }<\/p>\n\n\n\n

Associate ports with private VLANs.
Switch(config-if)# switchport mode private-vlan { host | promiscuous }<\/p>\n\n\n\n

Associate nonpromiscuous ports with private VLANs.
Switch(config-if)# switchport private-vlan hostassociation primary-vlan-id secondary-vlan-id<\/p>\n\n\n\n

Associate promiscuous ports with private VLANs.
Switch(config-if)# switchport private-vlan mapping { primary-vlan-id} {secondary-vlan-list } | { add secondary-vlan-list} | { remove secondary-vlan-list }<\/p>\n\n\n\n

Associate secondary VLANs with a primary VLAN Layer 3 SVI.
Switch(config-if)# private-vlan mapping { secondaryvlan-list | add secondary-vlan-list | remove secondary-vlan-list }<\/p>\n\n\n\n

DHCP Snooping Configuration Commands Task Command Syntax<\/span><\/strong><\/p>\n\n\n\n

Globally enable DHCP snooping.
Switch(config)# ip dhcp snooping<\/p>\n\n\n\n

Define a trusted interface.
Switch(config-if)# ip dhcp snooping trust<\/p>\n\n\n\n

Limit the interface DHCP packet rate.
Switch(config-if)# ip dhcp snooping limit rate rate<\/p>\n\n\n\n

Display DHCP snooping status.
Switch# show ip dhcp snooping [ binding ]\n\n\n\n

<\/p>\n\n\n\n

IP Source Guard Configuration Commands Task Command Syntax<\/span><\/strong><\/p>\n\n\n\n

Define a static IP source binding entry.
Switch(config)# ip source binding macaddress vlan vlan-id ip-address interface type member\/module\/number<\/p>\n\n\n\n

Enable IP source guard on an interface.
Switch(config-if)# ip verify source [ portsecurity ]\n\n\n\n

Display IP source guard status.
Switch# show ip verify source [ interface type member\/module\/number ]\n\n\n\n

Display IP source binding database.
Switch# show ip source binding [ ip-address ] [ mac-address ] [ dhcp-snooping | static ] [ interface type member\/module\/number ] [ vlan vlan-id ]\n\n\n\n

<\/p>\n\n\n\n

Dynamic ARP Inspection Configuration Commands Task Command Syntax<\/span><\/strong><\/p>\n\n\n\n

Enable DAI on a VLAN.
Switch(config)# ip arp inspection vlan vlanrange<\/p>\n\n\n\n

Define a trusted interface.
Switch(config-if)# ip arp inspection trust<\/p>\n\n\n\n

Define a static ARP inspection binding.
Switch(config)# arp access-list acl-name permit ip host sender-ip mac host sendermac [ log ]\n\n\n\n

Apply static ARP inspection bindings.
Switch(config)# ip arp inspection filter arpacl-name vlan vlan-range [ static ]\n\n\n\n

Validate addresses within ARP replies.
Switch(config)# ip arp inspection validate {[ src-mac ] [ dst-mac ] [ ip ]}<\/p>\n\n\n\n

Display DAI status.
Switch# show ip arp inspection<\/p>\n\n\n\n

<\/p>\n\n\n\n

AAA Configuration Commands Task Command Syntax<\/span><\/strong><\/p>\n\n\n\n

Enable AAA on a switch.
Switch(config)# aaa new-model<\/p>\n\n\n\n

Use local authentication.
Switch(config)# username username password password<\/p>\n\n\n\n

Define individual authentication servers.
Switch(config)# radius-server host { hostname | ip-address } [ key string ]
Switch(config)# tacacs-server host { hostname | ip-address } [ key string ]\n\n\n\n

Define a group of authentication servers.
Switch(config)# aaa group server { radius | tacacs+ } group-name
Switch(config-sg)# server ip-address<\/p>\n\n\n\n

Define a list of authentication methods to try.
Switch(config)# aaa authentication login { default | list-name } method1 [ method2 \u2026 ]\n\n\n\n

Apply an authentication method list to a line.
Switch(config-line)# login authentication { default | list-name }<\/p>\n\n\n\n

Define a list of authorization methods to try.
Switch(config)# aaa authorization { commands | config-commands | configuration | exec | network | reverseaccess } { default | list-name } method1 [ method2 \u2026 ]\n\n\n\n

Apply an authorization method list to a line.
Switch(config)# authorization { commands level | exec | reverse-access } { default | listname }<\/p>\n\n\n\n

Define a list of accounting methods to try.
Switch(config)# aaa accounting { system | exec | commands level } {default | list- name } { start-stop | stop-only | wait-start | none } method1 [ method2\u2026 ]\n\n\n\n

Apply an accounting method list to a line.
Switch(config-line)# accounting { commands level | connection | exec } { default | listname }<\/p>\n\n\n\n

<\/p>\n\n\n\n

Configuring NSF (by Routing Protocol)<\/span><\/strong><\/p>\n\n\n\n

BGP
Switch(config)# router bgp as-number
Switch(config-router)# bgp graceful-restart<\/p>\n\n\n\n

EIGRP
Switch(config)# router eigrp as-number
Switch(config-router)# nsf<\/p>\n\n\n\n

OSPF
Switch(config)# router ospf process-id
Switch(config-router)# nsf<\/p>\n\n\n\n

IS-IS
Switch(config)# router isis [tag ]
Switch(config-router)# nsf [ cisco | ietf]
Switch(config-router)# nsf interval [minutes ]
Switch(config-router)# nsf t3 { manual [ seconds] | adjacency }
Switch(config-router)# nsf interface wait seconds<\/p>","protected":false},"excerpt":{"rendered":"

Commands Used to Monitor and Manipulate the CAM Table TaskDisplay all MAC addresses learned on a specific interfaceSwitch# show mac address-table dynamic <\/p>","protected":false},"author":2,"featured_media":1392,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[233],"tags":[280,523,340,407,427],"yoast_head":"\nCisco IOS commands - JMCristobal<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jmcristobal.com\/2022\/02\/15\/cisco-ios-commands\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cisco IOS commands - JMCristobal\" \/>\n<meta property=\"og:description\" content=\"Commands Used to Monitor and Manipulate the CAM Table TaskDisplay all MAC addresses learned on a specific interfaceSwitch# show mac address-table dynamic\" \/>\n<meta property=\"og:url\" content=\"https:\/\/jmcristobal.com\/2022\/02\/15\/cisco-ios-commands\/\" \/>\n<meta property=\"og:site_name\" content=\"JMCristobal\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/web.facebook.com\/JMCristobalHomepage\" \/>\n<meta property=\"article:published_time\" content=\"2022-02-15T10:52:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-02-15T02:44:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/jmcristobal.com\/wp-content\/uploads\/2022\/01\/RS.png\" \/>\n\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t<meta property=\"og:image:height\" content=\"206\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"JMCristobal\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@jmcristobalhome\" \/>\n<meta name=\"twitter:site\" content=\"@jmcristobalhome\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"JMCristobal\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"14 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/jmcristobal.com\/2022\/02\/15\/cisco-ios-commands\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/jmcristobal.com\/2022\/02\/15\/cisco-ios-commands\/\"},\"author\":{\"name\":\"JMCristobal\",\"@id\":\"https:\/\/jmcristobal.com\/es\/#\/schema\/person\/e7cca8371cd491cf444cc824f30ae118\"},\"headline\":\"Cisco IOS commands\",\"datePublished\":\"2022-02-15T10:52:00+00:00\",\"dateModified\":\"2022-02-15T02:44:06+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/jmcristobal.com\/2022\/02\/15\/cisco-ios-commands\/\"},\"wordCount\":3037,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/jmcristobal.com\/es\/#organization\"},\"keywords\":[\"cisco\",\"commands\",\"ios\",\"router\",\"switch\"],\"articleSection\":[\"Enterprise Infrastructure\"],\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/jmcristobal.com\/2022\/02\/15\/cisco-ios-commands\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/jmcristobal.com\/2022\/02\/15\/cisco-ios-commands\/\",\"url\":\"https:\/\/jmcristobal.com\/2022\/02\/15\/cisco-ios-commands\/\",\"name\":\"Cisco IOS commands - 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