SHAPING THE FUTURE OF SATELLITE COMMUNICATIONS
9.5 Extended VLAN Support
9.5.1 VLAN Tagging
Virtual LAN tagging is a network standard (IEEE 802.1 Q standard) used to share a
physical Ethernet network link by multiple independend logical networks. VLAN
tagging is performed on layer two of the OSI model.
To set this up an administrator assigns a unique VLAN to each site in the network.
The devices are configured to insert the appropriate VLAN tag (site dependend)
into the ethernet frames.
Figure 91 represents a standard Ethernet frame format and an Ethernet frame
format with a VLAN tag added.
Figure 91 – VLAN Tag
The VLAN tag exits out of the following fields:
Figure 92 - VLAN Tag Fields
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