Layer 2 Protocol Tunneling (L2Pt) Settings - D-Link xStack User Manual

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Layer 2 Protocol Tunneling (L2PT) Settings

The Layer 2 Protocol Tunneling (L2PT) supports traffic of multiple customers across service provider networks. L2PT enables the
BPDU's of the same customer's network to be multicast over specific VLANs in the service provider's network, which in turn
will ensure the same geographically dispersed customer network can implement consistent spanning tree calculations across the
service provider network.
To view this window, click Administration > BPDU Tunneling Settings, as shown below:
The following fields can be configured:
Parameter
BPDU Tunneling State
Unit
From/To
Type
STP/GVRP
Click Apply to implement changes made.
®
DGS-3400 Series Layer 2 Gigabit Ethernet Managed Switch
Figure 2 - 69 BPDU Tunneling Settings window
Description
Use the drop-down menu to choose Enabled or Disabled.
Select the unit to configure.
Specify the ports on which the BPDU Tunneling will be enabled or disabled.
Use the drop-down menu to select the configuration type.
Tunnel – Specifies that the BPDU is received from a tunnel port, this packets DA will be
replaced by a reserved multicast address and then sent out to a providers network
through the uplink port.
Uplink – Specifies that the port is a normal switch port which connects to the network
provider. The encapsulated PDU received on the uplink port shall be terminated and the
DA is replaced with the STP/GVRP MAC address, the packet is then sent to the tunnel
port in the same VLAN.
None – When selected an encapsulated PDU is received on a port and the forwarding
behavior follows the forwarding of general multicast addresses. None is the default.
Select the type of tunnel multicast address to be applied to the ports either STP or
GVRP. An STP enabled port can not be configured as an STP tunnel port. A GVRP
enabled port can not be configured as a GVRP tunnel port.
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