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sVLAN Levels

You can stack sVLANs in a hierarchy to achieve greater VLAN scalability. An sVLAN level defines the hierarchy for the operating switch. When configuring the switch, you must specify only one level at a time.

You must configure UNI ports on both ends of the tunnel at the same level. Since sVLAN switching is MAC-addressed based, the normal issues of VLAN switching apply.

• If you build sVLAN networks with multiple levels, the network MAC addresses you specify must all be unique.
• Independent VLAN learning is only applicable within the outer level of sVLAN and does not take inner tags into account.



Note: Spanning Tree Protocol (STP) is not supported in multi-level sVLAN networks. It is supported for single level sVLAN networks only.

• sVLAN rules
• sVLAN UNI and NNI ports
• Configuring sVLAN
• About stacked VLANs
• About VLANs