XGS-5240-Series User Manual

Configuration Guide of XGS-5240-Series
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22.6.4 Voice VLAN Troubleshooting
Voice VLAN can not be applied concurrently with MAC-base VLAN. The Voice VLAN
support maximum 1024 sets of voice equipments, the exceeded number of equipments will
not be supported.
 The Voice VLAN on the port is enabled by default. If the configured data can no longer
enter the Voice VLAN during operation, please check if the Voice VLAN function has been
disabled on the port.
22.7 Super VLAN Configuration
22.7.1
Introduction to Super VLAN
Super VLAN, also called VLAN aggregation, we introduce the notion of super VLAN and
sub VLAN. One or more sub VLANs belong to a super VLAN, and sub VLAN does not occupy
an absolute subnet segment any more. However, in the same super VLAN, whether host
belongs to any sub VLAN, its IP address is within the subnet segment associated with super
VLAN.
In LanSwitch network, VLAN technique is applied widely for advantages (flexible control of
broadcast domain and deploy convenience). However, in generic layer-3 switch, it implements
communication between broadcast domains through a method that a VLAN correspond to a
layer-3 interface, it results in IP address waste.
For example, VLAN division of device is shown in the figure.
Fig 1-11 generic VLAN network