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17.5 Description of protocol VLANs
17.5.1 Overview
A protocol VLAN divides VLANs by protocol. Different VLANs can be configured for each
protocol, such as IPv4 and IPv6. Multiple protocols can be set for the same protocol VLAN.
The figure below shows an example protocol VLAN configuration. In the following example,
VLANs A and B are configured with the IPv4 protocol, and VLAN C is configured with the
IPv6 protocol.
Figure 17-6 Example protocol VLAN configuration
17.5.2 Distinguishing protocols
The following table describes the three types of values that can be used to distinguish
protocols.
Table 17-8 Values for distinguishing protocols
Distinguishing value
EtherType value
LLC value
SNAP EtherType value
Protocols are created by configuration and are associated with VLANs. Multiple protocols
can be associated with a single protocol VLAN.
Overview
Protocols are distinguished by the EtherType value of Ethernet V2-format
frames.
Protocols are distinguished by the LLC value (DSAP or SSAP) of 802.3-format
frames.
Protocols are distinguished by the EtherType value of 802.3-format frames.
This applies only to frames with an LLC value of
17 VLANs
AA AA
03.
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