Alaxala AX1250S Software Manual page 251

Notes
1. If the same VLAN mapping is assigned to VLAN groups in different rings, the same
port cannot be set as the ring port in those rings. Note, however, that it is possible to
set the same ring port if the port is a shared link (ring port for which
Related commands
axrp vlan-mapping
vlan-group
shared is set).
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