Lobos Tech LB-FEA800M - Manual (Page 58)

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Qos Policy: High Priority Levels: 0~7 priority level can map to high or
low queue. When the VLAN Tag number of a frame is mapping the
priority level of the port, and this frame can have high priority.(This QoS
Policy is for global Switch, not for any single port)
Protocol Enable Setting :
Enable Spanning Tree Protocol : Default recommend to enable STP
Enable Internet Group Multicast Protocol: enable IGMP protocol
IGMP Query Mode: Recognize different Query from client or server to
decide which Queryer will be the first priority, they are three mode as
follow:
1. Auto Mode: Choose the indicated Switch, which has the smallest IP
address will be set for the IGMP Queryer.
2. Enable Mode: Enable one of Switch to be the IGMP Queryer.
3. Disable Mode: Disable the other Switches to be the IGMP Queryer.
VLAN Operation Mode: