P Rotocol -­‐ Based V Lan - Black Box LPB2910A User Manual

2-­‐17.2 P rotocol -­‐ based V LAN
This s ection d escribes P rotocol -­‐ based V LAN. P rotocols s upported b y t he s witch i nclude E thernet L LC
and S NAP.
LLC
The Logical Link Control (LLC) data communication protocol layer is the upper sub-­‐layer of the Data
Link L ayer ( which i s i tself l ayer 2 , j ust a bove t he P hysical L ayer) i n t he s even-­‐layer O SI r eference m odel.
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 m echanisms.
SNAP
The S ubnetwork A ccess P rotocol ( SNAP) i s a m echanism f or m ultiplexing o n n etworks u sing I EEE 8 02.2
LLC. More protocols 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 L LC.
2-­‐17.2.1 P rotocol t o G roup
This page allows you to add new protocols to Group Name (unique for each Group) mapping entries
as w ell a s a llow y ou t o s ee a nd d elete a lready m apped e ntries f or t he s elected s tack s witch.
Web I nterface
To c onfigure P rotocol -­‐ based V LAN c onfiguration i n t he w eb i nterface:
1. Click P rotocol-­‐based V LAN c onfiguration a nd a dd a n ew e ntry.
2. Specify t he E thernet L LC S NAP P rotocol a nd G roup N ame.
3. Click A pply.
Figure 2 -­‐17.2.1: The P rotocol t o G roup M apping T able
Parameter d escription:
Delete:

To delete a Protocol to Group Name map entry, check this box. The entry will be deleted on the
switch d uring t he n ext S ave.
Frame T ype:

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Publication date: Sept, 2015
Revision A1