26.5.4 Native VLAN of the protocol port

When a frame with a protocol that does not match the configuration is received on a protocol port, it is handled by the native VLAN. The native VLAN is VLAN 1 (the default VLAN) unless otherwise specified in the configuration. It can also be changed to another port VLAN.

The figure below shows an example of a configuration in which the native VLAN is used for the protocol port. In this configuration, the IPX protocol is used for a single VLAN over the entire network, and other protocols such as IPv4 are split by VLAN for the port VLAN. VLAN A and VLAN B are set as the native VLAN for each port. Note that in this example configuration, both VLAN A and VLAN B can be set as IPv4 protocol VLANs.

Figure 26-6: Example of a configuration using native VLAN on a protocol port