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Run the command set l3-interface vlan-interface ipv6-nd prefix valid-lifetime to configure the time in seconds during which the prefix is considered valid for on-link determination.

Run the command delete l3-interface vlan-interface ipv6-nd prefix valid-lifetime to delete this configuration and revert to the default value of 2592000 seconds.

Command Syntax

set l3-interface vlan-interface <vlan-interface> ipv6-nd prefix <IPv6 Prefix> valid-lifetime <seconds | infinite>

delete l3-interface vlan-interface <vlan-interface> ipv6-nd prefix <IPv6 Prefix> valid-lifetime


vlan-interface <vlan-interface>Specifies the VLAN interface name. The value is a string.
prefix <IPv6 Prefix>Specifies the IPv6 prefix, e.g. fa00::0/64
valid-lifetime <seconds | infinite>Specifies the time period for which the prefix is valid. The value could be in seconds, Range: (0-4294967295) Default: 2592000. Or it could be infinite indicating infinite time.


  • This example configures the valid time of IPv6 prefix to infinity.
admin@XorPlus# set l3-interface vlan-interface vlan4001 ipv6-nd prefix fa00::0/64 valid-lifetime infinite
admin@XorPlus# commit
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