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This section describe Protocol -based VLAN, The Switch support Protocol include
Ethernet LLC SNAP Protocol, and 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, Decnet 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.
Function name:
VLAN – Protocol-based VLAN – Protocol Group
Function description:
The function is used to add new protocols to Group Name (unique for each Group)
mapping entries as well as used to allow you to see and delete the already mapped entries.
Parameters description:
Delete
Frame Type
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Check this box to delete the entry.
Frame Type can have one of the following values:
Note: On changing the Frame type field, valid value of the
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Ethernet
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SNAP
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VigorSwitch P2261 User's Guide
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