Lantronix
SM12XPA Web User Guide
33848 Rev. A
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Protocol-based VLAN
The switch supports Ethernet, LLC, and SNAP protocols.
LLC
: The Logical Link Control (LLC) data communication protocol layer is the upper sub-layer of the Data Link
Layer (which is itself layer 2, just above the Physical Layer) in the seven-layer OSI reference model. It provides
multiplexing mechanisms that make it possible for several network protocols (IP, IPX, Decent and Appletalk) to
coexist within a multipoint network and to be transported over the same network media and can also provide
flow control and automatic repeat request (ARQ) error management mechanisms.
SNAP
: The Subnetwork Access Protocol (SNAP) is a mechanism for multiplexing, on networks using IEEE 802.2
LLC, more protocols than can be distinguished by the 8-bit 802.2 Service Access Point (SAP) fields. SNAP supports
identifying protocols by Ethernet type field values; it also supports vendor-private protocol identifier spaces. It is
used with IEEE 802.3, IEEE 802.4, IEEE 802.5, IEEE 802.11 and other IEEE 802 physical network layers, as well as
with non-IEEE 802 physical network layers such as FDDI that use 802.2 LLC.
Protocol to Group
This page lets you add new protocols to a Group Name (unique for each Group) mapping entries and lets you
view and delete already mapped entries for the switch.
Web Interface
To configure Protocol -based VLAN parameters in the web UI:
1.
Click VLAN Management, Protocol-based VLAN, and Protocol to Group.
2.
Click “Add New Entry”.
3.
Specify the Frame Type, Value, and Group Name.
4.
Click Apply.
Figure 5-5.1: Protocol to Group Mapping Table
