Commands D through H

In this section:

1. dampening
   Sets dampening parameters for the route in BGP address-family mode.
2. database-overflow-interval (OSPFv2)
   Configures frequency for monitoring database overflow.
3. database-overflow-interval (OSPFv3)
   Configures frequency for monitoring database overflow.
4. dead-interval
   Configures the interval for which a Virtual Router Redundancy Protocol (VRRP) backup router waits for a hello message from the VRRP master router before determining that the master is offline. When backup routers determine that the master is offline, the backup router with the highest priority becomes the new VRRP master router.
5. dead-interval (VSRP)
   Configures the number of seconds a backup waits for a Hello message from the master before determining that the master is dead.
6. decnet-proto
   Configures the DECnet protocol VLAN.
7. default-acl
   Configures the default ACL for failed, timed-out, or guest user sessions.
8. default-gateway
   Configures the default gateway for a VLAN.
9. default-information-originate (BGP)
   Configures the device to originate and advertise a default BGP4 or BGP4+ route.
10. default-information-originate (OSPFv2)
    Controls distribution of default information to an OSPFv2 device.
11. default-information-originate (OSPFv3)
    Controls distribution of default information to an OSPFv3 device.
12. default-ip-address enable
    Configures default IP addresses on the management and default VE interfaces through the CLI.
13. default-ipv6-gateway
    Configures the IPv6 address of the default gateway on a VLAN.

    [<<< confirm syntax]
14. default-local-preference
    Enables setting of a local preference value to indicate a degree of preference for a route relative to that of other routes.
15. default-metric (BGP)
    Changes the default metric used for redistribution.
16. default-metric (OSPF)
    Sets the default metric value for the OSPFv2 or OSPFv3 routing protocol.
17. default-metric (RIP)
    Changes the RIP metric the router assigns by default to redistributed routes.
18. default-passive-interface
    Marks all OSPFv2 and OSPFv3 interfaces passive by default.
19. default-vlan-id
    Changes the default VLAN ID.
20. delay-notifications
    Configures the delay time for notifying the Layer 3 protocols of the VE down event.
21. delay-server
    Delays the Network Time Protocol (NTP) server response so that the synchronization time is not sent to NTP clients until the device has synchronized with an external NTP server.
22. delete-all
    Deletes all user records from a local user database.
23. deny (Extended IPv4 ACLs and IPv6 ACLs)
    Inserts filtering rules to deny packets in IPv4 extended named or numbered access-lists (ACLs) or IPv6 ACLs.
24. deny (Standard IPv4 ACLs)
    Inserts filtering rules in IPv4 standard named or numbered ACLs that will deny packets.
25. deploy
    Deploys the LAG.
26. description (IKEv2)
    Describes an Internet Key Exchange version 2 (IKEv2) profile.
27. description (IPsec)
    Describes an IP security (IPsec) profile.
28. destination-ip
    Sets the destination IP address of an Encapsulated Remote Switched Port Analyzer (ERSPAN) mirror.
29. dhcp-default-router
    Specifies the IP addresses of the default routers for a client.
30. dhcp-gateway-list
    Configures a gateway list when DHCP Assist is enabled on a Layer 2 switch.
31. dhcp snooping client-learning disable
    Disables DHCP client learning on an individual port or range of ports.
32. dhcp snooping relay information
    Enables DHCP snooping relay information (DHCP Option 82) on an interface.
33. dhcp snooping relay information circuit-id
    Configures a unique circuit ID per port.
34. dhcp snooping relay information remote-id
    Configures a unique remote ID per port.
35. dhcp snooping relay information subscriber-id
    Configures a unique subscriber ID per port or on a range of ports.
36. dhcp snooping trust
    Enables trust on a port connected to a DHCP server.
37. dhcp6 snooping trust
    Enables trust on a port connected to a DHCPv6 server.
38. dhgroup
    Configures a Diffie-Hellman (DH) group for an Internet Key Exchange version 2 (IKEv2) proposal.
39. diagnostics (MRP)
    Enables diagnostics on a metro ring.
40. disable (LAG)
    Disables the individual ports within a LAG.
41. disable (NTP)
    Disables NTP client and server mode.
42. disable (Port)
    Disables a port.
43. disable (VSRP)
    Disables the VSRP VRID for a port-based VLAN.
44. disable authentication md5
    Disables the MD5 authentication scheme for Network Time Protocol (NTP).
45. disable-aging
    Disables aging of MAC sessions at the global level.
46. distance (BGP)
    Changes the default administrative distances for eBGP, iBGP, and local BGP.
47. distance (OSPF)
    Configures an administrative distance value for OSPFv2 and OSPFv3 routes.
48. distance (RIP)
    Increases the administrative distance that the RIP router adds to routes.
49. distribute-list prefix-list (OSPFv3)
    Applies a prefix list to OSPF for IPv6 routing updates. Only routes permitted by the prefix-list can go into the routing table.
50. distribute-list prefix-list (RIPng)
    Applies a prefix list to RIPng to control routing updates that are received or sent.
51. distribute-list route-map
    Creates a route-map distribution list.
52. dlb-internal-trunk-hash
    Changes the hashing method for inter-packet-processor (inter-pp) HiGig links that are used to connect master and slave units in ICX 7450-48 devices.
53. dlogger module
    Enables module filter logging.
54. dlogger redirect
    Changes the distributed logger module log destination.
55. dns-filter
    Defines Domain Name System (DNS) filters that will restrict DNS queries from unauthenticated hosts to be forwarded explicitly to defined servers.
56. dns-server (DHCPv6)
    Specifies the IPv6 address of a Domain Name System (DNS) server.
57. domain-name
    Configures the domain name for the DHCP client.
58. dot1x enable
    Enables 802.1X authentication globally.
59. dot1x guest-vlan
    Specifies the VLAN into which the port should be placed when the client's response to the dot1x requests for authentication times out.
60. dot1x initialize
    Initializes 802.1X authentication on a port.
61. dot1x macauth-override
    Sets an override option so that MAC authentication is attempted when 802.1X authentication fails for the client.
62. dot1x max-reauth-req
    Configure the maximum number of times (attempts) EAP-request/identity frames are sent for reauthentication after the first authentication attempt.
63. dot1x max-req
    Configures the retransmission parameter that defines the maximum number of times EAP request/challenge frames are retransmitted when EAP response/identity frame is not received from the client.
64. dot1x-mka-enable
    Enables MACsec Key Agreement (MKA) capabilities on a licensed device and enters dot1x-mka configuration mode.
65. dot1x port-control
    Controls port-state authorization and configures the port control type to activate authentication on an 802.1X-enabled interface.
66. dot1x timeout
    Configures the timeout parameters that determine the time interval for client reauthentication and EAP retransmissions.
67. dynamic
    Configures dynamic ports.
68. dynamic-bootp
    Enables the Dynamic Host Configuration Protocol (DHCP) server to assign an IP address or a range of IP addresses to the Bootstrap Protocol (BOOTP) clients within its address pool.
69. eckeypair (PKI)
    Specifies which EC keypair to use during enrollment.
70. eee
    Enables Energy Efficient Ethernet (EEE) globally, per port or on a range of ports.
71. egress-buffer-profile
    Attaches a user-configured egress buffer profile to one or more ports.
72. enable (LAG)
    Enables an individual port within a LAG.
73. enable (MAC Port Security)
    Enables MAC port security.
74. enable (MRP)
    Enables the metro ring.
75. enable (Port)
    Enables a port.
76. enable (VSRP)
    Enables the VSRP VRID for a port-based VLAN.
77. enable (Web Authentication)
    Enables Web Authentication.
78. enable aaa console
    Enables AAA support for commands entered at the console.
79. enable accounting (ACL)
    Enables accounting for MAC ACLs at Layer 2, IPv4 ACLs, or IPv6 ACLs.
80. enable egress-acl-on-cpu-traffic
    Enables applying outbound access control lists (ACLs) to traffic generated by the central processing unit (CPU).
81. enable nd hop-limit
    For an IPv6 ACL, enables dropping neighbor discovery (ND) packets for which the hop limit is less than 255.
82. enable password-display
    Enables the display of the community string.
83. enable password-min-length
    Configures the minimum length on the Line (Telnet), Enable, or Local passwords.
84. enable port-config-password
    Allows read-and-write access for specific ports but not for global (systemwide) parameters.
85. enable privilege-mode password
    Enables a password for the Privileged mode
86. enable read-only-password
    Allows access to the Privileged EXEC mode and User EXEC mode of the CLI, but only with read access.
87. enable snmp
    Enables display of virtual interface statistics via SNMP.
88. enable strict-password-enforcement
    Enables the password security feature.
89. enable super-user-password
    Allows complete read-and-write access to the system.
90. enable telnet
    Configures Telnet access control parameters.
91. enable-tcp-mss
    Enables the Transmission Control Protocol (TCP) maximum segment size (MSS) feature.
92. enable user
    Configures login and password parameters specific to a user.
93. enable accounting (ACL)
    Enables accounting for MAC ACLs at Layer 2, IPv4 ACLs, or IPv6 ACLs.
94. enable-mka
    Enables MACsec Key Agreement (MKA) to support MACSec licensing functionality on a specified interface, and changes the mode to dot1x-mka-interface mode to allow related parameters to be configured.
95. encapsulation-mode
    Specifies the encapsulation mode for an IPsec proposal.
96. encryption
    Configures an encryption algorithm for an Internet Key Exchange version 2 (IKEv2) proposal.
97. encryption-algorithm
    Configures an encryption algorithm to protect data traffic for an IPsec proposal.
98. enforce-first-as
    Enforces the use of the first autonomous system (AS) path for external BGP (eBGP) routes.
99. enrollment (PKI)
    Sets the enrollment retry count, retry period, or profile.
100. erase flash
     Erases an image stored in the system flash.
101. erase pre-8090-startup-backup
     For all stack units, removes the backup startup-config file for releases prior to 08.0.90 (created on upgrade to 08.0.90).
102. erase startup-config
     Erases the startup configuration.
103. erase system factory-default
     Erases the system settings and restores factory default settings.
104. errdisable packet-inerror-detect
     Enables the device to monitor configured ports for inError packets and defines the sampling time interval in which the number of inError packets is counted.
105. errdisable recovery
     Enables a port to recover automatically from the error-disabled state.
106. esn-enable (IPsec)
     Used with replay-protection in IPsec to enable 64-bit sequence numbering for encrypted packets for tracking and verification by the receiving IPsec endpoint.
107. ethernet (EFM-OAM)
     Enables or disables EFM-OAM on an interface or multiple interfaces.
108. ethernet loopback
     Enables the Ethernet loopback functionality on a port in the VLAN-unaware mode.
109. ethernet loopback (VLAN-aware)
     Configures the Ethernet loopback functionality on one or a set of ports in a specific VLAN (VLAN-aware mode).
110. ethernet loopback test-mac
     Configures the port as flow-aware by specifying the source and destination MAC addresses of the flow on the interface.
111. exclude ethernet
     Excludes a port from the protocol VLAN membership.
112. excluded-address
     Specifies the addresses that should be excluded from the address pool.
113. exclude-ports
     Excludes a port from the dynamic port profile configuration.
114. execute batch
     Issues the commands that are saved in the batch buffer immediately or at a scheduled time, count, and interval.
115. extend vlan add (VXLAN)
     Configures a VLAN to be extended over the VXLAN tunnel to the designated remote site.
116. extend vlan-range (VXLAN)
     Extends a range of mapped VLANs over a VXLAN overlay gateway.
117. external-lsdb-limit (OSPFv2)
     Configures the maximum size of the external link state database (LSDB).
118. external-lsdb-limit (OSPFv3)
     Configures the maximum size of the external link state database (LSDB).
119. failover
     Enables or disables LAG (Link Aggregation Group) hardware failover on the next port in the LAG or on all ports in the LAG.
120. failure-detection (VXLAN)
     Sends keep-alive messages to check whether the connection to a remote site is up.
121. fast-external-fallover
     Resets the session if a link to an eBGP peer goes down.
122. fast port-span
     Enables Fast Port Span, configuring the ports attached to the end stations to enter into the forwarding state in four seconds.
123. fast uplink-span
     Enables Fast Uplink Span, configuring a device deployed as a wiring closet switch to decrease the convergence time for the uplink ports to another device to just one second.
124. fdp advertise
     Configures the IP management address to advertise for Foundry Discovery Protocol (FDP) neighbors.
125. fdp enable
     Enables Foundry Discovery Protocol (FDP) on an interface.
126. fdp holdtime
     Configures the Foundry Discovery Protocol (FDP) update hold time.
127. fdp run
     Enables a device to send Foundry Discovery Protocol (FDP) packets globally.
128. fdp timer
     Configures the Foundry Discovery Protocol (FDP) update timer.
129. fec
     Enables Forward Error Correction (FEC) on an Ethernet port to improve link reliability.
130. filter-strict-security enable
     Enables or disables strict filter security for MAC authentication and 802.1X authentication.
131. fingerprint (PKI)
     Sets the authentication fingerprint for the Certificate Authority (CA).
132. flash
     Use the flash command to perform basic flash file maintenance.
133. flash-timeout
     Configures the flash timeout duration.
134. flexlink backup
     Configures a pair of interfaces (physical or LAG) as Flexlink interfaces which act as an active link and backup link to provide link redundancy.
135. flexlink preemption delay
     Configures the time delay before a Flexlink interface preempts the other link according to the configured preemption scheme.
136. flexlink preemption mode
     Configures the preemption scheme to specify the preferred Flexlink interface for forwarding traffic.
137. flow-control
     Enables or disables flow control and flow control negotiation, and advertises flow control.
138. force-up ethernet
     Forces the member port of a dynamic LAG (Link Aggregation Group) to be logically operational even if the dynamic LAG is not operating.
139. format disk0
     Formats the external USB.
140. forwarding-profile
     Configures a forwarding profile.
141. gig-default
     Configures the Gbps fiber negotiation mode on individual ports, overriding the global configuration mode.
142. graceful-restart (BGP)
     Enables the BGP graceful restart capability.
143. graceful-restart (OSPFv2)
     Enables the OSPF Graceful Restart (GR) capability.
144. graceful-restart helper (OSPFv3)
     Enables the OSPFv3 graceful restart (GR) helper capability.
145. graft-retransmit-timer
     Configures the time between the transmission of graft messages sent by a device to cancel a prune state.
146. group-router-interface
     Creates router interfaces for each VLAN in the VLAN group.
147. hardware-drop-disable
     Disables passive multicast route insertion (PMRI).
148. hello-interval (VRRP)
     Configures the interval at which master Virtual Router Redundancy Protocol (VRRP) routers advertise their existence to the backup VRRP routers.
149. hello-interval (VSRP)
     Configures the number of seconds between hello messages from the master to the backups for a given VRID.
150. hello-timer
     Configures the interval at which hello messages are sent out of Protocol Independent Multicast (PIM) interfaces.
151. hitless-failover enable
     Enables hitless stacking failover and switchover. The standby controller is allowed to take over the active role without reloading the stack when failover occurs.
152. hold-down-interval
     Configures the hold-down interval.
153. hostname
     Configures a system name for a device and saves the information locally in the configuration file for future reference.
154. host-max-num
     Limits the number of hosts that are authenticated at any one time.