Methods systems and apparatuses for dynamically tagging VLANs

摘要

Systems, mechanisms, apparatuses, and methods are disclosed for dynamically tagging VLANs. For example, in one embodiment such means include: means for receiving a packet having identified therein a source Media Access Control (MAC) address and a Virtual Local Area Network (VLAN) Identifier, wherein the VLAN identifier corresponds to a VLAN which is non-existent on a network switch; means for modifying the packet received to include two VLAN tags, a first VLAN tag corresponding to the VLAN identifier identified within the packet received and a second VLAN tag, distinct from the first; means for determining no forwarding database entry exists for the modified packet; and means for creating the VLAN on the network switch to handle received packets tagged with the VLAN identifier.

主权项

1. A method in a network switch having a processor and a memory therein, wherein the method comprises:
receiving a packet having identified therein a source Media Access Control (MAC) address and a Virtual Local Area Network (VLAN) Identifier within a Customer VLAN Identifier (LVID) tag of the packet received, wherein the VLAN identifier corresponds to a VLAN which is non-existent on the network switch; modifying the packet received to include two VLAN tags, a first VLAN tag corresponding to the VLAN identifier within the CVID tag of the packet received and a second VLAN tag, distinct from the first, wherein modifying the packet with the first and the second VLAN tags associates the source MAC address with the CVID tag of the packet received; determining no forwarding database entry exists for the modified packet; and creating the VLAN on the network switch to handle received packets tagged with the VLAN identifier.