Luxul XMS-1024P - Manual (Page 74)

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XMS-1024P
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LUX-UG-XMS-1024P Vers: 081314
6.3 Protocol VLAN
Protocol VLAN is a way to classify VLANs based on Network protocol used by the pack-
ets. Protocol VLANs can be sorted by IP, IPX, DECnet, AppleTalk, Banyan and so forth.
Using Protocol VLANs, the broadcast domain can span multiple Switches and the Host
can change its physical position in the Network. All with its VLAN membership role
always remaining in effect. By creating Protocol VLANs, you can manage the connected
devices based on their actual applications and services.
Using Protocol VLAN the Switch can analyze received Untagged packets on the Port
and match the packets with the user-defi ned Protocol Template. If a packet is matched,
the Switch will add a corresponding VLAN Tag automatically and assigning the Data of
specifi c protocol automatically to a corresponding VLAN for transmission.
Encapsulation Format of Ethernet Data
This section introduces the common types of encapsulation format for Ethernet Data.
At present there are two encapsulation formats of Ethernet Data, Ethernet II encapsula-
tion and 802.2/802.3 encapsulation:

Ethernet II encapsulation
Figure 6-7 Ethernet II encapsulation

802.2/802.3 encapsulation
Figure 6-8 802.2/802.3 encapsulation
• DA and SA refer to Destination MAC Address and Source MAC Address. The
number listed in each section indicates the length of the fi eld in bytes. For
example the length of a Source MAC Address is 12 bytes.