Allworx PowerFlex P810, Руководство пользователя

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PowerFlex
8/24/48 Port GbE PoE Managed Switch User’s Guide
4.11.7
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
,
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 Sub network 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.
4.11.7.1 Protocol to Group
This page enables adding new protocols to Group Name (unique for each Group) mapping entries as
well as enables seeing and deleting already mapped entries for the selected stack switch/unit switch.
To configure Protocol -based VLANs via the web interface:
1. Navigate to Configuration > VLAN > Protocol -based VLAN .
2. Click Add new entry and specify the frame type and group name.
3. Click Apply or click Reset to cancel changes and revert to previously saved values. 0.
Figure 81:
Protocol to Group Mapping Table
Toll Free 1-866- ALLWORX • 585 -421- 3850 • www.allworx.com
Revised: October 30, 2013
Page 116