(en) Shuang Yu, IEEE approves new IEEE 802.1aq™ Shortest path bridging. IEEE Standards Association. Gearchiveerd op 14 mei 2013. Geraadpleegd op 19 June 2012. “Using the IEEE’s next-generation VLAN, called a Service Interface Identifier (I-SID), it is capable of supporting 16 million unique services compared to the VLAN limit of four thousand.”
