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BPDU tunneling configuration examples
BPDU tunneling for STP configuration example
Network requirements
As shown in Figure 32:
• 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.
• All ports that connect service provider devices and customer devices are access ports and belong to
VLAN 2; all ports that interconnect service provider devices are trunk ports and allow packets of any
VLAN to pass through.
• MSTP is enabled on User A’s network.
After the configuration, CE 1 and CE 2 implement consistent spanning tree calculation across the service
provider network, and that the destination multicast MAC address carried in BPDUs is 0x0100-0CCD-
CDD0.
Figure 32 Network diagram for configuring BPDU tunneling for STP
Configuration procedure
1. Configuration on PE 1
# Configure the destination multicast MAC address for BPDUs as 0x0100-0CCD-CDD0.
<PE1> system-view
[PE1] bpdu-tunnel tunnel-dmac 0100-0ccd-cdd0
# Create VLAN 2 and assign GigabitEthernet 1/0/1 to VLAN 2.
[PE1] vlan 2
[PE1-vlan2] quit
[PE1] interface gigabitethernet 1/0/1
[PE1-GigabitEthernet1/0/1] port access vlan 2
# Disable STP on GigabitEthernet 1/0/1, and then enable BPDU tunneling for STP on it.
[PE1-GigabitEthernet1/0/1] undo stp enable
[PE1-GigabitEthernet1/0/1] bpdu-tunnel dot1q stp
2. Configuration on PE 2
# Configure the destination multicast MAC address for BPDUs as 0x0100-0CCD-CDD0.
<PE2> system-view
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