Specifications

xStack DGS-3400 Series Layer 2 Gigabit Managed Switch CLI Manual
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VLAN COMMANDS
Along with normal VLAN configurations, this Switch now incorporate Double VLANs. Better known as Q-IN-Q VLANs, Double
VLANs allow network providers to expand their VLAN configurations to place VLANs within a larger inclusive VLAN, which
adds a new layer to the VLAN configuration. This basically lets large ISP's create L2 Virtual Private Networks and also create
transparent LANs for their customers, which will connect two or more customer LAN points without over complicating
configurations on the client's side. Not only will over-complication be avoided, but now the administrator has over 4000 VLANs
in which over 4000 VLANs can be placed, therefore greatly expanding the VLAN network.
Implementation of this feature adds a VLAN frame to an existing VLAN frame for the ISP VLAN recognition and classification.
To ensure devices notice this added VLAN frame, an Ethernet encapsulation, here known as a tpid, is also added to the frame. The
device recognizes this tpid and therefore checks the VLAN tagged packet to see if a provider VLAN tag has been added. If so, the
packet is then routed through this provider VLAN, which contains smaller VLANs with similar configurations to ensure speedy
and guaranteed routing destination of the packet.
The xStack DGS-3400 series now incorporates 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 fourteen (14) pre-defined protocols for configuring protocol-based VLANs. The user may also choose a protocol
that is not one of the fourteen defined protocols by properly configuring the userDefined protocol VLAN. The supported protocols
for the protocol VLAN function on this Switch include IP, IPX, DEC LAT, SNAP, NetBIOS, AppleTalk, XNS, SNA, IPv6,
RARP and VINES.
The VLAN commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following
table.
Command Parameters
create vlan <vlan_name 32> {tag <vlanid 2-4094> | {type {1q_vlan {advertisement} | [protocol-ip |
protocol-ipx802dot3 | protocol-ipx802dot2 | protocol-ipxSnap | protocol-ipxEthernet2 |
protocol-appleTalk | protocol-decLat | protocol-sna802dot2 | protocol-snaEthernet2 |
protocol-netBios | protocol-xns | protocol-vines | protocol-ipV6 | protocol-userDefined
<hex0x0-0xffff> encap [ethernet | llc | snap | all] | protocol-rarp]}}
delete vlan <vlan_name 32>
config vlan <vlan_name 32> {[add [tagged | untagged | forbidden] | delete] <portlist> |
advertisement [enable | disable]}
config gvrp [<portlist> | all] {state [enable | disable] | ingress_checking [enable | disable] |
acceptable_frame [tagged_only | admit_all] | pvid <vlanid 1-4094>}
disable gvrp
{[<vlan_name 32>} | type [1q_vlan | protocol]]}
show gvrp {<portlist>}
enable double_vlan
disable double_vlan
create double_vlan <vlan_name 32> spvid <vlanid 1-4094> {tpid <hex 0x0-0xffff>}
config double_vlan <vlan_name> {[[add [access | uplink] | delete] <portlist> | tpid <hex 0x0-0xffff>}
delete double_vlan <vlan_name>
show double_vlan
enable gvrp
show vlan
{<vlan_name>}
Each command is listed, in detail, in the following sections.
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