H3C Technologies H3C S12500 Series Switches - Manual (Page 183)

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Figure 59 Network diagram
Configuration procedure
IMPORTANT:
To make the bpdu-tunnel dot1q pvst command take effect on a port, you must also configure the
bpdu-tunnel dot1q stp command on the port.
1. Configure 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
# Configure GigabitEthernet 4/0/1 as a trunk port and assign it to VLANs 2 and 3.
[PE1] interface GigabitEthernet 4/0/1
[PE1-GigabitEthernet4/0/1] port link-type trunk
[PE1-GigabitEthernet4/0/1] port trunk permit vlan 2 3
# Disable STP on GigabitEthernet 4/0/1, and then enable BPDU tunneling for STP and PVST on
it.
[PE1-GigabitEthernet4/0/1] undo stp enable
[PE1-GigabitEthernet4/0/1] bpdu-tunnel dot1q stp
[PE1-GigabitEthernet4/0/1] bpdu-tunnel dot1q pvst
2. Configure PE 2:
# Configure the destination multicast MAC address for BPDUs as 0x0100-0CCD-CDD0.
<PE2> system-view
[PE2] bpdu-tunnel tunnel-dmac 0100-0ccd-cdd0
# Configure GigabitEthernet 4/0/2 as a trunk port and assign it to VLANs 2 and 3.
[PE2] interface GigabitEthernet 4/0/2
[PE2-GigabitEthernet4/0/2] port link-type trunk
[PE2-GigabitEthernet4/0/2] port trunk permit vlan 2 3
# Disable STP on GigabitEthernet 4/0/2, and then enable BPDU tunneling for STP and PVST on
it.
[PE2-GigabitEthernet4/0/2] undo stp enable
[PE2-GigabitEthernet4/0/2] bpdu-tunnel dot1q stp
[PE2-GigabitEthernet4/0/2] bpdu-tunnel dot1q pvst
ISP network
BPDU tunnel
User A network 1
PVST region
User A network 2
PVST region
CE 1 CE 2
PE 1 PE 2
GE4/0/1
Trunk GE4/0/2
Trunk