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xStack
®
DGS-3600 Series Layer 3 Managed Gigabit Ethernet Switch
Layer 2 Protocol Tunneling Settings
The Layer 2 Protocol Tunneling function supports traffic of multiple customers across service provider networks. BPDU
Tunneling 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 > Layer 2 Protocol Tunneling Settings
, as shown below:
Figure 2- 61. Layer 2 Protocol Tunneling Settings window
The following fields can be configured:
Parameter Description
Layer 2 Protocol
Tunneling State
Use the drop-down menu to
Enable
or
Disable
the Layer 2 Protocol Tunneling state.
Unit
Select the unit to configure.
From/To
Specify the ports on which the Layer 2 Protocol Tunneling will be enabled of disabled.
Type
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.
STP/GVRP
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.
Click
Apply
to implement changes made.
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