CLI Guide

Switch Management Commands 2025
Syntax
ipv6 dhcp server pool-name [rapid-commit] [preference pref-value]
• pool-name — The name of the DHCPv6 pool containing stateless and/or
prefix delegation parameters
• rapid-commit — An option that allows for an abbreviated exchange
between the client and server.
• pref-value — Preference value — used by clients to determine preference
between multiple DHCPv6 servers. (Range: 0-4294967295)
Default Configuration
The default preference value is 20. Rapid commit is not enabled by default.
Command Mode
Interface Configuration (VLAN, Tunnel) mode
User Guidelines
This feature requires the IPv6 DHCP service. Enable the IPv6 DHCP service
using the service dhcpv6 command. The ipv6 dhcp server command enables
DHCP for IPv6 service on a specified interface using the pool for prefix
delegation and other configuration through that interface.
The rapid-commit keyword enables the use of the two-message exchange for
prefix delegation and other configuration. If a client has included a rapid
commit option in the solicit message and the rapid-commit keyword is
enabled for the server, the server responds to the solicit message with a reply
message.
If the preference keyword is configured with a value other than 0, the server
adds a preference option to carry the preference value for the advertise
messages. This action affects the selection of a server by the client. Any
advertise message that does not include a preference option is considered to
have a preference value of 0. If the client receives an advertise message that
includes a preference option with a preference value of 255, the client
immediately sends a request message to the server from which the advertise
message was received.