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Run the command set l3-interface vlan-interface ipv6-nd ra-fast-retrans to enable or disable the IPv6 Router Advertisement fast retransmit feature. According to RFC4861, consecutive RA packets should be sent with at least 3 seconds delay. PICOS by default bypasses this restriction by fast transmission of RA to achieve better convergence.

Command Syntax

set l3-interface vlan-interface <vlan-interface> ipv6-nd ra-fast-retrans <true|false>


vlan-interface <vlan-interface>Specifies the VLAN interface name.
ra-fast-retrans <true|false>

Enables or disables the Fast Retransmit feature.

  • true: Enables RA packet fast retransmit 
  • false: Disables RA packet fast retransmit

Default is enabled.


  • This example enables RA fast retransmit.
admin@XorPlus# set l3-interface vlan-interface vlan4001 ipv6-nd ra-fast-retrans true
admin@XorPlus# commit
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