Reference Guide

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Table Of Contents

Dell Command Line Reference Guide for the S4820T System 9.4(0.0)
About this Guide
- Objectives
- Audience
- Conventions
- Information Icons
CLI Basics
- Accessing the Command Line
- Multiple Configuration Users
- Obtaining Help
- Navigating the CLI
- Using the Keyword no Command
- Filtering show Commands
- Enabling Software Features on Devices Using a Command Option
  - feature vrf
  - show feature
- Command Modes
File Management
- boot system
- cd
- copy
- delete
- dir
- format flash (S-Series)
- fsck flash
- rename
- restore factory-defaults
- show boot system
- show bootvar
- show file-systems
- show running-config
- show startup-config
- show os-version
- show version
- upgrade
Control and Monitoring
- asf-mode
- cam-acl
- cam-acl-vlan
- clear line
- configure
- disable
- do
- enable
- enable optic-info-update interval
- end
- exec-banner
- exec-timeout
- exit
- ftp-server enable
- ftp-server topdir
- ftp-server username
- hostname
- ip ftp password
- ip ftp vrf
- ip ftp source-interface
- ip ftp username
- ip telnet server enable
- ip telnet server vrf
- ip telnet source-interface
- ip tftp source-interface
- ip tftp vrf
- line
- motd-banner
- ping
- reload
- send
- service timestamps
- show alarms
- show cam-acl-vlan
- show command-history
- show command-tree
- show cpu-traffic-stats
- show debugging
- show environment
- show inventory
- show memory
- show processes cpu
- show processes ipc flow-control
- show processes memory
- show software ifm
- show system
- show tech-support
- ssh-peer-stack-unit
- telnet
- telnet-peer-stack-unit
- terminal length
- traceroute
- undebug all
- virtual-ip
- write
802.1ag
- ccm disable
- ccm transmit-interval
- clear ethernet cfm traceroute-cache
- database hold-time
- disable
- domain
- ethernet cfm
- ethernet cfm mep
- ethernet cfm mip
- mep cross-check
- mep cross-check enable
- mep cross-check start-delay
- ping ethernet
- show ethernet cfm domain
- show ethernet cfm maintenance-points local
- show ethernet cfm maintenance-points remote
- show ethernet cfm mipbd
- show ethernet cfm statistics
- show ethernet cfm port-statistics
- show ethernet cfm traceroute-cache
- service
- traceroute cache hold-time
- traceroute cache size
- traceroute ethernet
802.1X
- debug dot1x
- dot1x auth-fail-vlan
- dot1x auth-server
- dot1x auth-type mab-only
- dot1x authentication (Configuration)
- dot1x authentication (Interface)
- dot1x guest-vlan
- dot1x host-mode
- dot1x mac-auth-bypass
- dot1x max-eap-req
- dot1x max-supplicants
- dot1x port-control
- dot1x quiet-period
- dot1x reauthentication
- dot1x reauth-max
- dot1x server-timeout
- dot1x supplicant-timeout
- dot1x tx-period
- show dot1x cos-mapping interface
- show dot1x interface
Access Control Lists (ACL)
- Commands Common to all ACL Types
  - remark
  - show config
- Common IP ACL Commands
  - access-class
  - clear counters ip access-group
  - ip access-group
  - ip control-plane egress-filter
  - show ip accounting access-list
- Standard IP ACL Commands
  - deny
  - ip access-list standard
  - permit
  - resequence access-list
  - resequence prefix-list ipv4
  - seq
- Extended IP ACL Commands
  - deny
  - deny icmp
  - deny tcp
  - deny udp
  - ip access-list extended
  - permit
  - permit tcp
  - permit udp
  - resequence access-list
  - resequence prefix-list ipv4
  - seq
- Common MAC Access List Commands
  - clear counters mac access-group
  - mac access-group
  - show mac access-lists
  - show mac accounting access-list
- Standard MAC ACL Commands
  - deny
  - mac access-list standard
  - permit
  - seq
- Extended MAC ACL Commands
  - deny
  - mac access-list extended
  - permit
  - seq
- IP Prefix List Commands
  - clear ip prefix-list
  - deny
  - ip prefix-list
  - permit
  - seq
  - show config
  - show ip prefix-list detail
  - show ip prefix-list summary
- Route Map Commands
  - continue
  - description
  - match as-path
  - match community
  - match interface
  - match ip address
  - match ip next-hop
  - match ip route-source
  - match metric
  - match origin
  - match route-type
  - match tag
  - route-map
  - set as-path
  - set automatic-tag
  - set comm-list delete
  - set community
  - set level
  - set local-preference
  - set metric
  - set metric-type
  - set next-hop
  - set origin
  - set tag
  - set weight
  - show config
  - show route-map
- AS-Path Commands
  - ip as-path access-list
  - show ip as-path-access-lists
- IP Community List Commands
  - ip community-list
  - show ip community-lists
- deny (for Standard IP ACLs)
- deny (for Extended IP ACLs)
- seq (for Standard IPv4 ACLs)
- deny tcp (for Extended IP ACLs)
- deny udp (for Extended IP ACLs)
- deny arp (for Extended MAC ACLs)
- deny icmp (for Extended IP ACLs)
- deny ether-type (for Extended MAC ACLs)
- deny (for Standard MAC ACLs)
- deny (for Extended MAC ACLs)
- permit (for Standard IP ACLs)
- permit arp (for Extended MAC ACLs)
- permit ether-type (for Extended MAC ACLs)
- permit icmp (for Extended IP ACLs)
- permit udp (for Extended IP ACLs)
- permit (for Extended IP ACLs)
- permit (for Standard MAC ACLs)
- seq (for Standard MAC ACLs)
- permit tcp (for Extended IP ACLs)
- seq arp (for Extended MAC ACLs)
- seq ether-type (for Extended MAC ACLs)
- seq (for IP ACLs)
- seq (for IPv6 ACLs)
- permit udp (for IPv6 ACLs)
- permit tcp (for IPv6 ACLs)
- permit icmp (for IPv6 ACLs)
- permit (for IPv6 ACLs)
- deny udp (for IPv6 ACLs)
- deny tcp (for IPv6 ACLs)
- deny icmp (for Extended IPv6 ACLs)
- deny (for IPv6 ACLs)
Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM)
- member vlan
- ip access-group
- show acl-vlan-group
- show cam-acl-vlan
- cam-acl-vlan
- show cam-usage
- show running config acl-vlan-group
- acl-vlan-group
- show acl-vlan-group detail
- description (ACL VLAN Group)
Bidirectional Forwarding Detection (BFD)
- bfd all-neighbors
- bfd disable
- bfd enable (Configuration)
- bfd enable (Interface)
- bfd interval
- bfd neighbor
- bfd protocol-liveness
- ip route bfd
- ipv6 ospf bfd all-neighbors
- isis bfd all-neighbors
- neighbor bfd
- neighbor bfd disable
- show bfd neighbors
- vrrp bfd neighbor
Border Gateway Protocol
- BGP IPv4 Commands
- MBGP Commands
- BGP Extended Communities (RFC 4360)
- IPv6 BGP Commands
- IPv6 MBGP Commands
  - show ipv6 mbgproutes
Content Addressable Memory (CAM)
- CAM Profile Commands
Control Plane Policing (CoPP)
- control-plane-cpuqos
- ip unknown-unicast
- ipv6 unknown-unicast
- service-policy rate-limit-cpu-queues
- service-policy rate-limit-protocols
- show cpu-queue rate cp
- show ip protocol-queue-mapping
- show ipv6 protocol-queue-mapping
- show mac protocol-queue-mapping
Data Center Bridging (DCB)
- DCB Command
  - dcb-enable
- PFC Commands
  - clear pfc counters
  - dcb-input
  - dcb-policy input
  - dcb-policy input stack-unit stack-ports all
  - dcb stack-unit pfc-buffering pfc-port-count pfc-queues
  - description
  - pfc link-delay
  - pfc mode on
  - pfc no-drop queues
  - pfc priority
  - show dcb
  - show interface pfc
  - show interface pfc statistics
  - show qos dcb-input
  - show stack-unit stack-ports pfc details
- ETS Commands
  - bandwidth-percentage
  - clear ets counters
  - dcb-enable
  - dcb-output
  - dcb-policy output
  - dcb-policy output stack-unit stack-ports all
  - description
  - ets mode on
  - priority-list
  - priority-group
  - priority-group qos-policy
  - qos-policy-output ets
  - scheduler
  - set-pgid
  - show interface ets
  - show qos dcb-output
  - show qos priority-groups
  - show stack-unit stack-ports ets details
- DCBX Commands
  - advertise dcbx-app-tlv
  - advertise dcbx-appln-tlv
  - advertise dcbx-tlv
  - dcbx port-role
  - dcbx version
  - debug dcbx
  - fcoe priority-bits
  - iscsi priority-bits
  - show interface dcbx detail
- Configuring DCB Maps and its Attributes
- Data Center Bridging: Default Configuration
- dcb-map
- priority-pgid
- pfc mode on
- priority-group bandwidth pfc
- dcb-map stack-unit all stack-ports all
- show qos dcb-map
- Applying a DCB Map in a Switch Stack
- dcb pfc-shared-buffer-size
- dcb-buffer-threshold
- priority
- qos-policy-buffer
- dcb-policy buffer-threshold (Interface Configuration)
- dcb-policy dcb-buffer-threshold (Global Configuration)
- show qos dcb-buffer-threshold
- show hardware stack-unit buffer-stats-snapshot (With Polling and History)
- dcb pfc-total-buffer-size
- show running-config dcb-buffer-threshold
- dcb pfc-queues
Debugging and Diagnostics
- Offline Diagnostic Commands
- Buffer Tuning Commands
  - buffer-profile (Configuration)
- Hardware Commands
Dynamic Host Configuration Protocol (DHCP)
- Commands to Configure the System to be a DHCP Server
- Commands to Configure Secure DHCP
- Commands to Configure DNS
Equal Cost Multi-Path (ECMP)
- ecmp-group
- hash-algorithm
- hash-algorithm ecmp
- hash-algorithm seed
- ip ecmp-group
- link-bundle-distribution trigger-threshold
- link-bundle-monitor enable
- show config
- show link-bundle distribution
FIPS Cryptography
- fips mode enable
- show fips status
- show ip ssh
- ssh
FCoE Transit
- clear fip-snooping database interface vlan
- clear fip-snooping statistics
- debug fip snooping
- debug fip snooping rx
- feature fip-snooping
- fip-snooping enable
- fip-snooping fc-map
- fip-snooping max-sessions-per-enodemac
- fip-snooping port-mode fcf
- fip-snooping port-mode fcoe-trusted
- show fip-snooping config
- show fip-snooping enode
- show fip-snooping fcf
- show fip-snooping statistics
- show fip-snooping system
- show fip-snooping vlan
- show fips status
Force10 Resilient Ring Protocol (FRRP)
- clear frrp
- debug frrp
- description
- disable
- interface
- member-vlan
- mode
- protocol frrp
- show frrp
- timer
GARP VLAN Registration (GVRP)
- clear gvrp statistics
- debug gvrp
- disable
- garp timers
- gvrp enable
- gvrp registration
- protocol gvrp
- show config
- show garp timers
- show gvrp
- show gvrp statistics
High Availability (HA)
- patch flash://RUNTIME_PATCH_DIR
- process restartable
- redundancy auto-failover-limit
- redundancy disable-auto-reboot
- redundancy force-failover
- redundancy primary
- redundancy protocol
- redundancy reset-counter
- redundancy sfm standby
- redundancy synchronize
- show patch
- show processes restartable
- show redundancy
ICMP Message Types
Internet Group Management Protocol (IGMP)
- IGMP Commands
- IGMP Snooping Commands
Interfaces
- Basic Interface Commands
- Egress Interface Selection (EIS) Commands
- Port Channel Commands
- Time Domain Reflectometer (TDR)
  - tdr-cable-test
  - show tdr
- UDP Broadcast
- Enhanced Validation of Interface Ranges
Internet Protocol Security (IPSec)
- crypto ipsec transform-set
- crypto ipsec policy
- management crypto-policy
- match
- session-key
- show crypto ipsec transform-set
- show crypto ipsec policy
- transform-set
IPv4 Routing
- arp
- arp backoff-time
- arp learn-enable
- arp max-entries
- arp retries
- arp timeout
- clear arp-cache
- clear host
- clear ip fib stack-unit
- clear ip route
- clear tcp statistics
- debug arp
- debug ip dhcp
- debug ip icmp
- debug ip packet
- ip address
- ip directed-broadcast
- ip domain-list
- ip domain-lookup
- ip domain-name
- ip helper-address
- ip helper-address hop-count disable
- ip host
- ip icmp source-interface
- ipv6 icmp source-interface
- ip max-frag-count
- ip max-routes
- ip mtu
- ip name-server
- ip proxy-arp
- ip route
- ip source-route
- ip tcp initial-time
- show ip tcp initial-time
- ip unreachables
- load-balance
- load-balance hg
- management route
- show arp
- show arp retries
- show hosts
- show ip cam linecard
- show ip cam stack-unit
- show ip fib linecard
- show ip fib stack-unit
- show ip flow
- show ip interface
- show ip management-route
- show ipv6 management-route
- show ip protocols
- show ip route
- show ip route list
- show ip route summary
- show ip traffic
- show tcp statistics
IPv6 Access Control Lists (IPv6 ACLs)
- show cam-acl-egress
- show cam-acl
- permit icmp
- permit
- ipv6 control-plane egress-filter
- ipv6 access-list
- cam-acl-egress
- cam-acl
IPv6 Basics
- clear ipv6 fib
- clear ipv6 route
- clear ipv6 mld_host
- ipv6 address autoconfig
- ipv6 address
- ipv6 address eui64
- ipv6 control-plane icmp error-rate-limit
- ipv6 flowlabel-zero
- ipv6 host
- ipv6 name-server
- ipv6 nd dad attempts
- ipv6 nd prefix
- ipv6 route
- ipv6 unicast-routing
- show ipv6 cam stack-unit
- show ipv6 control-plane icmp
- show ipv6 fib stack-unit
- show ipv6 flowlabel-zero
- show ipv6 interface
- show ipv6 mld_host
- show ipv6 route
- trust ipv6-diffserv
iSCSI Optimization
- advertise dcbx-app-tlv
- iscsi aging time
- iscsi cos
- iscsi enable
- iscsi priority-bits
- iscsi profile-compellant
- iscsi target port
- show iscsi
- show iscsi session
- show iscsi session detailed
- show run iscsi
Intermediate System to Intermediate System (IS-IS)
- adjacency-check
- advertise
- area-password
- clear config
- clear isis
- clns host
- debug isis
- debug isis adj-packets
- debug isis local-updates
- debug isis snp-packets
- debug isis spf-triggers
- debug isis update-packets
- default-information originate
- description
- distance
- distribute-list in
- distribute-list out
- distribute-list redistributed-override
- domain-password
- graceful-restart ietf
- graceful-restart interval
- graceful-restart restart-wait
- graceful-restart t1
- graceful-restart t2
- graceful-restart t3
- hello padding
- hostname dynamic
- ignore-lsp-errors
- ip router isis
- ipv6 router isis
- isis circuit-type
- isis csnp-interval
- isis hello-interval
- isis hello-multiplier
- isis hello padding
- isis ipv6 metric
- isis metric
- isis network point-to-point
- isis password
- isis priority
- is-type
- log-adjacency-changes
- lsp-gen-interval
- lsp-mtu
- lsp-refresh-interval
- max-area-addresses
- max-lsp-lifetime
- maximum-paths
- metric-style
- multi-topology
- net
- passive-interface
- redistribute
- redistribute bgp
- redistribute ospf
- router isis
- set-overload-bit
- show config
- show isis database
- show isis graceful-restart detail
- show isis hostname
- show isis interface
- show isis neighbors
- show isis protocol
- show isis traffic
- spf-interval
Link Aggregation Control Protocol (LACP)
- clear lacp counters
- debug lacp
- lacp long-timeout
- lacp port-priority
- lacp system-priority
- port-channel-protocol lacp
- show lacp
Layer 2
- MAC Addressing Commands
- Virtual LAN (VLAN) Commands
- Far-End Failure Detection (FEFD)
Link Layer Discovery Protocol (LLDP)
- LLPD Commands
- LLDP-MED Commands
Microsoft Network Load Balancing
- arp (for Multicast MAC Address)
- mac-address-table static (for Multicast MAC Address)
- ip vlan-flooding
Multicast Source Discovery Protocol (MSDP)
- clear ip msdp peer
- clear ip msdp sa-cache
- clear ip msdp statistic
- debug ip msdp
- ip msdp cache-rejected-sa
- ip msdp default-peer
- ip msdp log-adjacency-changes
- ip msdp mesh-group
- ip msdp originator-id
- ip msdp peer
- ip msdp redistribute
- ip msdp sa-filter
- ip msdp sa-limit
- ip msdp shutdown
- ip multicast-msdp
- show ip msdp
- show ip msdp sa-cache rejected-sa
Multiple Spanning Tree Protocol (MSTP)
- debug spanning-tree mstp
- disable
- forward-delay
- hello-time
- max-age
- max-hops
- msti
- name
- protocol spanning-tree mstp
- revision
- show config
- show spanning-tree mst configuration
- show spanning-tree msti
- spanning-tree
- spanning-tree msti
- spanning-tree mstp edge-port
- tc-flush-standard
Multicast
- IPv4 Multicast Commands
Neighbor Discovery Protocol (NDP)
- clear ipv6 neighbors
- ipv6 neighbor
- show ipv6 neighbors
Open Shortest Path First (OSPFv2 and OSPFv3)
- OSPFv2 Commands
- OSPFv3 Commands
Policy-based Routing (PBR)
- description
- ip redirect-group
- ip redirect-list
- permit
- redirect
- seq
- show cam pbr
- show ip redirect-list
PIM-Sparse Mode (PIM-SM)
- IPv4 PIM-Sparse Mode Commands
Port Monitoring
- description
- monitor session
- show config
- show monitor session
- show running-config monitor session
- source (port monitoring)
Private VLAN (PVLAN)
- ip local-proxy-arp
- private-vlan mode
- private-vlan mapping secondary-vlan
- switchport mode private-vlan
Per-VLAN Spanning Tree Plus (PVST+)
- description
- disable
- extend system-id
- protocol spanning-tree pvst
- show spanning-tree pvst
- spanning-tree pvst
- spanning-tree pvst err-disable
- tc-flush-standard
- vlan bridge-priority
- vlan forward-delay
- vlan hello-time
- vlan max-age
Quality of Service (QoS)
- Global Configuration Commands
  - qos-rate-adjust
- Per-Port QoS Commands
- Policy-Based QoS Commands
Routing Information Protocol (RIP)
- auto-summary
- clear ip rip
- debug ip rip
- default-information originate
- default-metric
- description
- distance
- distribute-list in
- distribute-list out
- ip poison-reverse
- ip rip receive version
- ip rip send version
- ip split-horizon
- maximum-paths
- neighbor
- network
- offset-list
- output-delay
- passive-interface
- redistribute
- redistribute isis
- redistribute ospf
- router rip
- show config
- show ip rip database
- show running-config rip
- timers basic
- version
Remote Monitoring (RMON)
- rmon alarm
- rmon collection history
- rmon collection statistics
- rmon event
- rmon hc-alarm
- show rmon
- show rmon alarms
- show rmon events
- show rmon hc-alarm
- show rmon history
- show rmon log
- show rmon statistics
Rapid Spanning Tree Protocol (RSTP)
- bridge-priority
- debug spanning-tree rstp
- description
- disable
- forward-delay
- hello-time
- max-age
- protocol spanning-tree rstp
- show config
- show spanning-tree rstp
- spanning-tree rstp
- tc-flush-standard
Software-Defined Networking (SDN)
Security
- AAA Accounting Commands
- Authorization and Privilege Commands
- Authentication and Password Commands
- RADIUS Commands
- TACACS+ Commands
- Port Authentication (802.1X) Commands
- SSH Server and SCP Commands
- Secure DHCP Commands
Service Provider Bridging
- debug protocol-tunnel
- protocol-tunnel
- protocol-tunnel destination-mac
- protocol-tunnel enable
- protocol-tunnel rate-limit
- show protocol-tunnel
sFlow
- sflow collector
- sflow enable (Global)
- sflow enable (Interface)
- sflow extended-switch enable
- sflow polling-interval (Global)
- sflow polling-interval (Interface)
- sflow sample-rate (Global)
- sflow sample-rate (Interface)
- show sflow
Simple Network Management Protocol (SNMP) and Syslog
- SNMP Commands
- Syslog Commands
SNMP Traps
Stacking
- redundancy disable-auto-reboot
- redundancy force-failover stack-unit
- redundancy protocol
- reset stack-unit
- show redundancy
- show system stack-ports
- stack-unit priority
- stack-unit provision
- stack-unit stack-group
- upgrade system stack-unit
Storm Control
- show storm-control broadcast
- show storm-control multicast
- show storm-control unknown-unicast
- storm-control broadcast (Configuration)
- storm-control broadcast (Interface)
- storm-control multicast (Configuration)
- storm-control multicast (Interface)
- storm-control unknown-unicast (Configuration)
- storm-control unknown-unicast (Interface)
Spanning Tree Protocol (STP)
- bridge-priority
- bpdu-destination-mac-address
- debug spanning-tree
- description
- disable
- forward-delay
- hello-time
- max-age
- protocol spanning-tree
- show config
- show spanning-tree 0
- spanning-tree
System Time and Date
- calendar set
- clock read-calendar
- clock summer-time date
- clock summer-time recurring
- clock timezone
- debug ntp
- ntp authenticate
- ntp broadcast client
- ntp disable
- ntp multicast client
- show calendar
- show clock
- show ntp associations
- show ntp status
u-Boot
- printenv
- reset
- save
- setenv
Tunneling
- tunnel-mode
- tunnel source
- tunnel keepalive
- tunnel allow-remote
- tunnel dscp
- tunnel flow-label
- tunnel hop-limit
- tunnel destination
- ip unnumbered
- ipv6 unnumbered
Uplink Failure Detection (UFD)
- clear ufd-disable
- debug uplink-state-group
- description
- downstream
- downstream auto-recover
- downstream disable links
- enable
- show running-config uplink-state-group
- show uplink-state-group
- uplink-state-group
- upstream
VLAN Stacking
- dei enable
- dei honor
- dei mark
- member
- stack-unit stack-group
- vlan-stack access
- vlan-stack compatible
- vlan-stack dot1p-mapping
- vlan-stack protocol-type
- vlan-stack trunk
Virtual Link Trunking (VLT)
- back-up destination
- clear vlt statistics
- delay-restore
- lacp ungroup member-independent
- multicast peer-routing timeout
- peer-link port-channel
- peer-routing
- peer-routing-timeout
- primary-priority
- show vlt brief
- show vlt backup-link
- show vlt counters
- show vlt detail
- show vlt inconsistency
- show vlt mismatch
- show vlt role
- show vlt statistics
- show vlt statistics igmp-snoop
- system-mac
- unit-id
- vlt domain
- vlt-peer-lag port-channel
- show vlt private-vlan
VLT Proxy Gateway
- proxy-gateway lldp
- proxy-gateway static
- remote-mac-address exclude-vlan
- peer-domain-link port-channel exclude-vlan
- proxy-gateway peer-timeout
- vlt-peer-mac transmit
- show vlt-proxy-gateway
Virtual Routing and Forwarding (VRF)
- ip vrf
- description
- ip vrf forwarding
- interface management
- maximum dynamic-routes
- show ip vrf
- show run vrf
Virtual Router Redundancy Protocol (VRRP)
- IPv4 VRRP Commands
- IPv6 VRRP Commands

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