H3C S5120-EI Series User Manual

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Configuring BPDU Tunneling
Configuration Prerequisites
z Before configuring BPDU tunneling for a protocol, enable the protocol in the customer network
first.
z Assign the port on which you want to enable BPDU tunneling on the PE device and the connected
port on the CE device to the same VLAN.
z Configure all the ports in the service provider network as trunk ports allowing packets of any VLAN
to pass through.
Enabling BPDU Tunneling
You can enable BPDU tunneling for different protocols in different views.
z Settings made in Ethernet interface view or Layer 2 aggregate interface view take effect only on
the current port; settings made in port group view take effect on all ports in the port group.
z Before enabling BPDU tunneling for DLDP, EOAM, GVRP, HGMP, LLDP, or STP on a port,
disable the protocol on the port first. Because PVST is a special STP protocol, before enabling
BPDU tunneling for PVST on a port, you need to disable STP and then enable BPDU tunneling for
STP on the port first.
z Before enabling BPDU tunneling for LACP on a dynamic aggregation group member port, remove
the port from the dynamic aggregation group first.
Enabling BPDU tunneling for a protocol in Ethernet interface view or port group view
Follow these steps to enable BPDU tunneling for a protocol in Ethernet interface view or port group
view:
To do... Use the command... Remarks
Enter system view
system-view
—
Enter Ethernet
interface view
interface interface-type
interface-number
Enter
Ethernet
interface
view or port
group view
Enter port group
view
port-group manual
port-group-name
Required
Use either command
Enable BPDU tunneling for a
protocol
bpdu-tunnel dot1q { cdp |
dldp | eoam | gvrp | hgmp |
lacp | lldp | pagp | pvst | stp |
udld | vtp }
Required
By default, BPDU tunneling for a
protocol is disabled.

H3C S5120-EI Series Specifications

General

Brand	H3C
Model	S5120-EI Series
Category	Switch
Language	English