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| -rw-r--r-- | docs/high-availability.rst | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/docs/high-availability.rst b/docs/high-availability.rst index 54f2f388..07818e92 100644 --- a/docs/high-availability.rst +++ b/docs/high-availability.rst @@ -63,6 +63,44 @@ VRRP priority can be set with ``priority`` option: The priority must be an integer number from 1 to 255. Higher priority value increases router's precedence in the master elections. +Sync groups +----------- + +A sync group allows VRRP groups to transition together. + +.. code-block:: sh + + edit high-availability + set sync-group MAIN member VLAN9 + set sync-group MAIN member VLAN20 + +In the following example, when VLAN9 transitions, VLAN20 will also transition: + +.. code-block:: sh + + vrrp { + group VLAN9 { + interface eth0.9 + virtual-address 10.9.1.1/24 + priority 200 + vrid 9 + } + group VLAN20 { + interface eth0.20 + priority 200 + virtual-address 10.20.20.1/24 + vrid 20 + } + sync-group MAIN { + member VLAN20 + member VLAN9 + } + } + + +.. warning:: All items in a sync group should be similarly configured. If one VRRP group is set to a different premption delay or priority, it would result in an endless transition loop. + + Preemption ---------- |