DXS-3326GSR Gigabit Layer 3 Switch
VLAN and Trunk Groups
The members of a trunk group have the same VLAN setting. Any VLAN setting on the members of a trunk group will
apply to the other member ports.
NOTE: In order to use VLAN segmentation in conjunction with port trunk
groups, you can first set the port trunk group(s), and then you may
configure VLAN settings. If you wish to change the port trunk grouping
with VLANs already in place, you will not need to reconfigure the VLAN
settings after changing the port trunk group settings. VLAN settings will
automatically change in conjunction with the change of the port trunk
group settings.
Protocol VLANs
The DXS-3326SGR incorporates the idea of protocol-based VLANs. This standard, defined by the IEEE 802.1v standard
maps packets to protocol-defined VLANs by examining the type octet within the packet header to discover the type of
protocol associated with it. After assessing the protocol, the Switch will forward the packets to all ports within the
protocol-assigned VLAN. This feature will benefit the administrator by better balancing load sharing and enhancing traffic
classification. The Switch supports fifteen pre-defined protocols for configuration. The user may also choose a protocol
that is not one of the fifteen defined protocols by properly configuring the userDefined protocol VLAN. The supported
protocols for the protocol VLAN function on this switch include IP, IPX, DEC, DEC LAT, SNAP, NetBIOS, AppleTalk,
XNS, SNA, IPv6, RARP and VINES.
The following is a list of type headers for each protocol listed for VLAN configuration.
Protocol Type Header in Hexidecimal Form
IP over Ethernet 0x0800
IPX 802.3 0xFFFF
IPX 802.2 0xE0E0
IPX SNAP 0x8137
IPX over Ethernet2 0x8137
decLAT 0x6000
decOther 0x6009
SNA 802.2 0x0404
netBios 0xF0F0
XNS 0x0600
VINES 0x0BAD
IPV6 0x86DD
AppleTalk 0x809B
RARP 0x8035
Table 6- 3. Protocol VLAN and the Corresponding Type Header
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