CLI Reference Guide-R04
Table Of Contents
- How to Use This Guide
- Contents
- Figures
- Tables
- Getting Started
- Command Line Interface
- Using the Command Line Interface
- General Commands
- System Management Commands
- SNMP Commands
- snmp-server
- snmp-server community
- snmp-server contact
- snmp-server location
- show snmp
- snmp-server enable traps
- snmp-server host
- snmp-server enable port-traps link- up-down
- snmp-server enable port-traps mac-notification
- show snmp-server enable port-traps
- snmp-server engine-id
- snmp-server group
- snmp-server user
- snmp-server view
- show snmp engine-id
- show snmp group
- show snmp user
- show snmp view
- nlm
- snmp-server notify-filter
- show nlm oper-status
- show snmp notify-filter
- memory
- process cpu
- process cpu guard
- Remote Monitoring Commands
- Flow Sampling Commands
- User Authentication Commands
- User Accounts and Privilege Levels
- Authentication Sequence
- RADIUS Client
- TACACS+ Client
- AAA
- Web Server
- Telnet Server
- Secure Shell
- 802.1X Port Authentication
- dot1x default
- dot1x eapol-pass- through
- dot1x system-auth- control
- dot1x intrusion-action
- dot1x max-reauth-req
- dot1x max-req
- dot1x operation- mode
- dot1x port-control
- dot1x re-authentication
- dot1x timeout quiet-period
- dot1x timeout re-authperiod
- dot1x timeout supp-timeout
- dot1x timeout tx-period
- dot1x re-authenticate
- show dot1x
- Management IP Filter
- PPPoE Intermediate Agent
- pppoe intermediate- agent
- pppoe intermediate- agent format-type
- pppoe intermediate- agent port-enable
- pppoe intermediate- agent port-format- type
- pppoe intermediate-agent port-format-type remote-id-delimiter
- pppoe intermediate- agent trust
- pppoe intermediate- agent vendor-tag strip
- clear pppoe intermediate-agent statistics
- show pppoe intermediate-agent info
- show pppoe intermediate-agent statistics
- General Security Measures
- Port Security
- Network Access (MAC Address Authentication)
- network-access aging
- network-access mac-filter
- mac-authentication reauth-time
- network-access dynamic-qos
- network-access dynamic-vlan
- network-access guest-vlan
- network-access link-detection
- network-access link- detection link-down
- network-access link- detection link-up
- network-access link- detection link-up- down
- network-access max- mac-count
- network-access mode mac-authentication
- network-access port- mac-filter
- mac-authentication intrusion-action
- mac-authentication max-mac-count
- clear network-access
- show network-access
- show network-access mac-address-table
- show network-access mac-filter
- Web Authentication
- DHCPv4 Snooping
- ip dhcp snooping
- ip dhcp snooping information option
- ip dhcp snooping information option encode no-subtype
- ip dhcp snooping information option remote-id
- ip dhcp snooping information option tr101 board-id
- information policy
- ip dhcp snooping limit rate
- ip dhcp snooping verify mac address
- ip dhcp snooping vlan
- ip dhcp snooping information option circuit-id
- ip dhcp snooping max-number
- ip dhcp snooping trust
- ip dhcp snooping vlan-flooding
- clear ip dhcp snooping binding
- clear ip dhcp snooping database flash
- ip dhcp snooping database flash
- show ip dhcp snooping
- show ip dhcp snooping binding
- DHCPv6 Snooping
- ipv6 dhcp snooping
- ipv6 dhcp snooping option remote-id
- ipv6 dhcp snooping option remote-id policy
- ipv6 dhcp snooping vlan
- ipv6 dhcp snooping max-binding
- ipv6 dhcp snooping trust
- clear ipv6 dhcp snooping binding
- clear ipv6 dhcp snooping statistics
- show ipv6 dhcp snooping
- show ipv6 dhcp snooping binding
- show ipv6 dhcp snooping statistics
- IPv4 Source Guard
- IPv6 Source Guard
- ARP Inspection
- ip arp inspection
- ip arp inspection filter
- ip arp inspection log-buffer logs
- ip arp inspection validate
- ip arp inspection vlan
- ip arp inspection limit
- ip arp inspection trust
- show ip arp inspection configuration
- show ip arp inspection interface
- show ip arp inspection log
- show ip arp inspection statistics
- show ip arp inspection vlan
- Denial of Service Protection
- Port-based Traffic Segmentation
- Access Control Lists
- Interface Commands
- interface
- capabilities
- description
- discard
- flowcontrol
- history
- media-type
- negotiation
- shutdown
- speed-duplex
- switchport block
- switchport mtu
- clear counters
- show discard
- show interfaces brief
- show interfaces counters
- show interfaces history
- show interfaces status
- show interfaces switchport
- transceiver-monitor
- transceiver-threshold- auto
- transceiver-threshold current
- transceiver-threshold rx-power
- transceiver-threshold temperature
- transceiver-threshold tx-power
- transceiver-threshold voltage
- show interfaces transceiver
- show interfaces transceiver-threshold
- test cable-diagnostics
- show cable-diagnostics
- show loop internal
- power-save
- show power-save
- Link Aggregation Commands
- Port Mirroring Commands
- Congestion Control Commands
- Rate Limit Commands
- Storm Control Commands
- Automatic Traffic Control Commands
- auto-traffic-control apply-timer
- auto-traffic-control release-timer
- auto-traffic-control
- auto-traffic-control action
- auto-traffic-control alarm-clear-threshold
- auto-traffic-control alarm-fire-threshold
- auto-traffic-control auto-control-release
- auto-traffic-control control-release
- snmp-server enable port-traps atc broadcast-alarm-clear
- snmp-server enable port-traps atc broadcast-alarm-fire
- snmp-server enable port-traps atc broadcast-control- apply
- snmp-server enable port-traps atc broadcast-control- release
- snmp-server enable port-traps atc multicast-alarm-clear
- snmp-server enable port-traps atc multicast-alarm-fire
- snmp-server enable port-traps atc multicast-control- apply
- snmp-server enable port-traps atc multicast-control- release
- show auto-traffic- control
- show auto-traffic- control interface
- Loopback Detection Commands
- UniDirectional Link Detection Commands
- Address Table Commands
- Smart Pair Commands
- TWAMP Commands
- Spanning Tree Commands
- spanning-tree
- spanning-tree forward-time
- spanning-tree hello- time
- spanning-tree max-age
- spanning-tree mode
- spanning-tree pathcost method
- spanning-tree priority
- spanning-tree mst configuration
- spanning-tree system- bpdu-flooding
- spanning-tree transmission-limit
- max-hops
- mst priority
- mst vlan
- name
- revision
- spanning-tree bpdu-filter
- spanning-tree bpdu-guard
- spanning-tree cost
- spanning-tree edge-port
- spanning-tree link-type
- spanning-tree loopback-detection
- spanning-tree loopback-detection action
- spanning-tree loopback-detection release-mode
- spanning-tree loopback-detection trap
- spanning-tree mst cost
- spanning-tree mst port-priority
- spanning-tree port- bpdu-flooding
- spanning-tree port-priority
- spanning-tree root-guard
- spanning-tree spanning-disabled
- spanning-tree tc-prop-stop
- spanning-tree loopback-detection release
- spanning-tree protocol-migration
- show spanning-tree
- show spanning-tree mst configuration
- ERPS Commands
- erps
- erps node-id
- erps vlan-group
- erps ring
- erps instance
- ring-port
- exclusion-vlan
- enable (ring)
- enable (instance)
- meg-level
- control-vlan
- rpl owner
- rpl neighbor
- wtr-timer
- guard-timer
- holdoff-timer
- mep-monitor
- major-ring
- propagate-tc
- bpdu-tcn-notify
- non-revertive
- raps-def-mac
- raps-without-vc
- version
- inclusion-vlan
- physical-ring
- erps forced-switch
- erps manual-switch
- erps clear
- clear erps statistics
- show erps statistics
- show erps
- VLAN Commands
- GVRP and Bridge Extension Commands
- Editing VLAN Groups
- Configuring VLAN Interfaces
- Displaying VLAN Information
- Configuring IEEE 802.1Q Tunneling
- Configuring L2PT Tunneling
- Configuring VLAN Translation
- Configuring Protocol-based VLANs
- Configuring IP Subnet VLANs
- Configuring MAC Based VLANs
- Configuring Voice VLANs
- Class of Service Commands
- Priority Commands (Layer 2)
- Priority Commands (Layer 3 and 4)
- qos map phb-queue
- qos map cos-dscp
- qos map default-drop- precedence
- qos map dscp-cos
- qos map dscp-mutation
- qos map ip-port-dscp
- qos map ip-prec-dscp
- qos map trust-mode
- show qos map cos-dscp
- show map default- drop-precedence
- show map dscp-cos
- show qos map dscp-mutation
- show qos map ip-port-dscp
- show qos map ip-prec-dscp
- show qos map phb-queue
- show qos map trust-mode
- Quality of Service Commands
- Multicast Filtering Commands
- IGMP Snooping
- ip igmp snooping
- ip igmp snooping mrouter-forward- mode dynamic
- ip igmp snooping priority
- ip igmp snooping proxy-reporting
- ip igmp snooping querier
- ip igmp snooping router-alert-option- check
- ip igmp snooping router-port-expire- time
- ip igmp snooping tcn-flood
- ip igmp snooping tcn-query-solicit
- ip igmp snooping unregistered-data- flood
- ip igmp snooping unsolicited-report- interval
- ip igmp snooping version
- ip igmp snooping version-exclusive
- ip igmp snooping vlan general-query- suppression
- ip igmp snooping vlan immediate-leave
- ip igmp snooping vlan last-memb-query- count
- ip igmp snooping vlan last-memb-query- intvl
- ip igmp snooping vlan mrd
- ip igmp snooping vlan proxy-address
- ip igmp snooping vlan query-interval
- ip igmp snooping vlan query-resp-intvl
- ip igmp snooping vlan static
- clear ip igmp snooping groups dynamic
- clear ip igmp snooping statistics
- show ip igmp snooping
- show ip igmp snooping group
- show ip igmp snooping mrouter
- show ip igmp snooping statistics
- Static Multicast Routing
- IGMP Filtering and Throttling
- ip igmp filter (Global Configuration)
- ip igmp igmp-with- pppoe
- ip igmp profile
- permit, deny
- range
- ip igmp authentication
- ip igmp filter (Interface Configuration)
- ip igmp max-groups
- ip igmp max-groups action
- ip igmp query-drop
- ip multicast-data-drop
- show ip igmp authentication
- show ip igmp filter
- show ip igmp igmp- with-pppoe
- show ip igmp profile
- show ip igmp query-drop
- show ip igmp throttle interface
- show ip multicast- data-drop
- MLD Snooping
- ipv6 mld snooping
- ipv6 mld snooping querier
- ipv6 mld snooping query-interval
- ipv6 mld snooping query-max-response- time
- ipv6 mld snooping proxy-reporting
- ipv6 mld snooping robustness
- ipv6 mld snooping router-port-expire- time
- ipv6 mld snooping unknown-multicast mode
- ipv6 mld snooping unsolicited-report- interval
- ipv6 mld snooping version
- ipv6 mld snooping vlan immediate-leave
- ipv6 mld snooping vlan mrouter
- ipv6 mld snooping vlan static
- clear ipv6 mld snooping groups dynamic
- clear ipv6 mld snooping statistics
- show ipv6 mld snooping
- show ipv6 mld snooping group
- show ipv6 mld snooping group source-list
- show ipv6 mld snooping mrouter
- show ipv6 mld snooping statistics
- MLD Filtering and Throttling
- MVR for IPv4
- mvr
- mvr associated-profile
- mvr domain
- mvr priority
- mvr profile
- mvr proxy-query- interval
- mvr proxy-switching
- mvr robustness-value
- mvr source-port- mode dynamic
- mvr upstream- source-ip
- mvr vlan
- mvr immediate-leave
- mvr type
- mvr vlan group
- clear mvr groups dynamic
- clear mvr statistics
- show mvr
- show mvr associated-profile
- show mvr interface
- show mvr members
- show mvr profile
- show mvr statistics
- MVR for IPv6
- mvr6 associated- profile
- mvr6 domain
- mvr6 priority
- mvr6 profile
- mvr6 proxy-query- interval
- mvr6 proxy-switching
- mvr6 robustness- value
- mvr6 source-port- mode dynamic
- mvr6 upstream- source-ip
- mvr6 vlan
- mvr6 immediate-leave
- mvr6 type
- mvr6 vlan group
- clear mvr6 groups dynamic
- clear mvr6 statistics
- show mvr6
- show mvr6 associated-profile
- show mvr6 interface
- show mvr6 members
- show mvr6 profile
- show mvr6 statistics
- IGMP Snooping
- LLDP Commands
- lldp
- lldp holdtime- multiplier
- lldp med-fast-start- count
- lldp notification- interval
- lldp refresh-interval
- lldp reinit-delay
- lldp tx-delay
- lldp admin-status
- lldp basic-tlv management-ip- address
- lldp basic-tlv management-ipv6- address
- lldp basic-tlv port-description
- lldp basic-tlv system-capabilities
- lldp basic-tlv system-description
- lldp basic-tlv system-name
- lldp dot1-tlv proto-ident
- lldp dot1-tlv proto-vid
- lldp dot1-tlv pvid
- lldp dot1-tlv vlan-name
- lldp dot3-tlv link-agg
- lldp dot3-tlv mac-phy
- lldp dot3-tlv max-frame
- lldp dot3-tlv poe
- lldp med-location civic-addr
- lldp med-notification
- lldp med-tlv ext-poe
- lldp med-tlv inventory
- lldp med-tlv location
- lldp med-tlv med-cap
- lldp med-tlv network-policy
- lldp notification
- show lldp config
- show lldp info local-device
- show lldp info remote-device
- show lldp info statistics
- show lldp info statistics
- CFM Commands
- ethernet cfm ais level
- ethernet cfm ais ma
- ethernet cfm ais period
- ethernet cfm ais suppress alarm
- ethernet cfm domain
- ethernet cfm enable
- ma index name
- ma index name-format
- ethernet cfm mep
- ethernet cfm port-enable
- clear ethernet cfm ais mpid
- show ethernet cfm configuration
- show ethernet cfm md
- show ethernet cfm ma
- show ethernet cfm maintenance-points local
- show ethernet cfm maintenance-points local detail mep
- show ethernet cfm maintenance-points remote detail
- ethernet cfm cc ma interval
- ethernet cfm cc enable
- snmp-server enable traps ethernet cfm cc
- mep archive-hold- time
- clear ethernet cfm maintenance-points remote
- clear ethernet cfm errors
- show ethernet cfm errors
- ethernet cfm mep crosscheck start-delay
- snmp-server enable traps ethernet cfm crosscheck
- mep crosscheck mpid
- ethernet cfm mep crosscheck
- show ethernet cfm maintenance-points remote crosscheck
- ethernet cfm linktrace cache
- ethernet cfm linktrace cache hold-time
- ethernet cfm linktrace cache size
- ethernet cfm linktrace
- clear ethernet cfm linktrace-cache
- show ethernet cfm linktrace-cache
- ethernet cfm loopback
- mep fault-notify alarm-time
- mep fault-notify lowest-priority
- mep fault-notify reset-time
- show ethernet cfm fault-notify-generator
- ethernet cfm delay- measure two-way
- OAM Commands
- efm oam
- efm oam critical-link-event
- efm oam link-monitor frame
- efm oam link-monitor frame threshold
- efm oam link-monitor frame window
- efm oam mode
- clear efm oam counters
- clear efm oam event-log
- efm oam remote-loopback
- efm oam remote- loopback test
- show efm oam counters interface
- show efm oam event-log interface
- show efm oam remote-loopback interface
- show efm oam status interface
- show efm oam status remote interface
- Domain Name Service Commands
- DHCP Commands
- IP Interface Commands
- IPv4 Interface
- IPv6 Interface
- ipv6 default-gateway
- ipv6 address
- ipv6 address autoconfig
- ipv6 address dhcp
- ipv6 address eui-64
- ipv6 address link-local
- ipv6 enable
- ipv6 mtu
- show ipv6 interface
- show ipv6 mtu
- show ipv6 traffic
- clear ipv6 traffic
- ping6
- traceroute6
- ipv6 hop-limit
- ipv6 neighbor
- ipv6 nd dad attempts
- ipv6 nd managed- config-flag
- ipv6 nd ns-interval
- ipv6 nd other-config- flag
- ipv6 nd prefix
- ipv6 nd ra interval
- ipv6 nd ra lifetime
- ipv6 nd ra router- preference
- ipv6 nd ra suppress
- ipv6 nd raguard
- ipv6 nd reachable-time
- clear ipv6 neighbors
- show ipv6 nd raguard
- show ipv6 neighbors
- ND Snooping
- ipv6 nd snooping
- ipv6 nd snooping auto-detect
- ipv6 nd snooping auto-detect retransmit count
- ipv6 nd snooping auto-detect retransmit interval
- ipv6 nd snooping prefix timeout
- ipv6 nd snooping max-binding
- ipv6 nd snooping trust
- clear ipv6 nd snooping binding
- clear ipv6 nd snooping prefix
- show ipv6 nd snooping
- show ipv6 nd snooping binding
- show ipv6 nd snooping prefix
- IP Routing Commands
- Appendices
- Glossary
- CLI Commands
Chapter 15
| Loopback Detection Commands
– 492 –
Command Mode
Privileged Exec
Example
Console#show loopback-detection
Loopback Detection Global Information
Global Status : Enabled
Transmit Interval : 10
Recover Time : 60
Action : Shutdown
Trap : None
Loopback Detection Port Information
Port Admin State Oper State
-------- ----------- ----------
Eth 1/ 1 Enabled Normal
Eth 1/ 2 Disabled Normal
Eth 1/ 3 Disabled Normal
.
.
.
Console#show loopback-detection ethernet 1/1
Loopback Detection Information of Eth 1/1
Admin State : Enabled
Oper State : Normal
Looped VLAN : None
Console#