Q-in-Q and VLAN Translation Rules
For ingress untagged packets at UNI ports:
1. The Switch does not reference the VLAN translation table.
2. Check the switch VLAN tables. The sequence is MAC-based VLAN -> subnet-based VLAN -> protocol-based
VLAN -> port-based VLAN. If matched, the matched VLAN will become this packet’s ‘SPVLAN’.
For ingress tagged packets at UNI ports:
1. The Switch looks up the VLAN translation table. If matched, the VLAN tag will be translated (replace CEVLAN
with SPVLAN, or add SPVLAN).
2. Or, check the switch VLAN tables. The sequence is the same as above. The matched VLAN becomes this
packet’s ‘SPVLAN’.
802.1v Protocol VLAN
802.1v Protocol Group Settings
The table allows the user to create Protocol VLAN groups and add protocols to that group. The 802.1v Protocol VLAN
Group Settings supports multiple VLANs for each protocol and allows the user to configure the untagged ports of
different protocols on the same physical port. For example it allows the user to configure an 802.1Q and 802.1v
untagged port on the same physical port. The lower half of the table displays any previously created groups.
To view this window click L2 Features > 802.1v Protocol VLAN > 802.1v Protocol Group Settings
Figure 3 - 20 802.1v Protocol Group Settings window
The following fields can be set:
Parameter Description
Group ID Select an ID number for the group, between 1 and 16.
Group Name
This is used to identify the new Protocol VLAN group. Type an alphanumeric string of up to 32
characters.
Protocol
This function maps packets to protocol-defined VLANs by examining the type octet within the
packet header to discover the type of protocol associated with it. Use the drop-down menu to
toggle between Ethernet_II, IEEE802.3_LLC and IEEE802.3_SNAP.
Protocol Value
(0-FFFF)
Enter a value for the Group.
Click Add to make a new entry and Delete All to remove an entry.
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