VLAN Configuration
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Instruction Manual - NXA-ENET8-POE+
Protocol VLANs
The network devices required to support multiple protocols cannot be easily grouped into a common VLAN. This may require
non-standard devices to pass traffic between different VLANs in order to encompass all the devices participating in a specific
protocol. This kind of configuration deprives users of the basic benefits of VLANs, including security and easy accessibility.
To avoid these problems, you can configure this switch with protocol-based VLANs that divide the physical network into logical
VLAN groups for each required protocol. When a frame is received at a port, its VLAN membership can then be determined based
on the protocol type being used by the inbound packets.
Command Usage
To configure protocol-based VLANs, follow these steps:
1.
First configure VLAN groups for the protocols you want to use (see the
Although not mandatory, we suggest configuring a separate VLAN for each major protocol running on your network. Do not
add port members at this time.
2.
Create a protocol group for each of the protocols you want to assign to a VLAN using the Configure Protocol (Add) page.
3.
Next, map the protocol for each interface to the appropriate VLAN using the Configure Interface (Add) page.
When MAC-based, IP subnet-based, or protocol-based VLANs are supported concurrently, priority is applied in this sequence, and
then port-based VLANs last.
Configuring Protocol VLAN Groups
Use the VLAN > Protocol (Configure Protocol - Add) page to create protocol groups.
The following table lists the options on this page:
NOTE:
Traffic which matches IP Protocol Ethernet Frames is mapped to the VLAN (VLAN 1) that has been configured with the switch's
administrative IP. IP Protocol Ethernet traffic must not be mapped to another VLAN or you will lose administrative network
connectivity to the switch. If lost in this manner, network access can be regained by removing the offending Protocol VLAN rule via the
console. Alternately, the switch can be power-cycled, however all unsaved configuration changes will be lost.
Perform these steps to configure a protocol group:
1.
Click
VLAN
>
Protocol
.
2.
Select
Configure Protocol
from the Step list.
3.
Select
Add
from the Action list.
4.
Select an entry from the Frame Type list.
5.
Select an entry from the Protocol Type list.
6.
Enter an identifier for the protocol group.
7.
Click
Apply
.
VLAN - Protocol Options
Frame Type
Choose either Ethernet, RFC 1042, or LLC Other as the frame type used by this protocol.
Protocol Type
Specifies the protocol type to match. The available options are IP, ARP, RARP and IPv6. If LLC Other
is chosen for the Frame Type, the only available Protocol Type is IPX Raw.
Protocol Group ID
Protocol Group ID assigned to the Protocol VLAN Group. (Range: 1-2147483647)
FIG. 95
Configuring Protocol VLANs