100
Step Command
Remarks
2.
Enter Ethernet interface view or
port group view.
•
Enter Layer 2 Ethernet interfac
e
view:
interface interface-type
interface-number
•
Enter port group view:
port-group manual
port-group-name
Use either command.
3.
Enable BPDU tunneling for a
protocol.
bpdu-tunnel dot1q
{
cdp
|
hgmp
|
lacp
|
lldp
|
pvst
|
stp
|
udld
|
vtp
}
Disabled by default.
Enabling BPDU tunneling for a protocol in Layer 2 aggregate interface view
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter Layer 2 aggregate interface
view.
interface bridge-aggregation
interface-number
N/A
3.
Enable BPDU tunneling for a
protocol on the Layer 2 aggregate
interface.
bpdu-tunnel dot1q
{
cdp
|
hgmp
|
pvst
|
stp
|
vtp
}
Disabled by default.
Configuring destination multicast MAC address
for BPDUs
By default, the destination multicast MAC address for BPDUs is 0x010F-E200-0003. You can
change it to 0x0100-0CCD-CDD0, 0x0100-0CCD-CDD1, or 0x0100-0CCD-CDD2.
To configure destination multicast MAC address for BPDUs:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Configure the destination
multicast MAC address for
BPDUs.
bpdu-tunnel tunnel-dmac
mac-address
Optional.
0x010F-E200-0003 by default.
NOTE:
For BPDUs to be recognized, the destination multicast MAC addresses configured for BPDU
tunneling must be the same on the edge devices on the service provider network.
BPDU tunneling configuration examples
BPDU tunneling for STP configuration example
Network requirements
As shown in
:
•
CE 1 and CE 2 are edges devices on the geographically dispersed network of User A; PE 1 and
PE 2 are edge devices on the service provider network.