An SVL (Switch VLAN Link) is the connection between two switches running distributed VLAN in the same domain.
SVLs and SVL ports forward traffic for all VLANs present on either side of the SVL. Because of this, no normal learning can take place on an SVL; this means that an unknown MAC address on an SVL port will not be processed by VLAN learning, and the packet will be discarded.
Note
If you want to have an end-station placed on the link between two switches (e.g., using a
hub) this can be done only by configuring this station as a permanent entry on one of the
two ports used to connect the switches.
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