H3C Low-End and Mid-Range Ethernet Switches Configuration Examples(V1.01)

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07-BPDU Tunnel Configuration Guide
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Configuring BPDU Tunnel

Network diagram

Figure 1-1 Network diagram for BPDU tunnel configuration

 

Networking and Configuration Requirements

Customer A and Customer B are customer network access devices. Provider A and Provider B are service provider network access devices, which are interconnected through configured trunk ports.

The configuration is required to satisfy the following requirements:

l          Geographically dispersed customer network access devices Customer A and Customer B can implement consistent spanning tree calculation across the service provider network.

l          The destination multicast MAC address configured for BPDU tunnel frames is 0x0100-0CCD-CDD0.

Applicable Product Matrix

Product series

Software version

Hardware version

S3610 Series Ethernet Switches

Release 5301, Release 5303

All versions

S5510 Series Ethernet Switches

Release 5301, Release 5303

All versions

S5500-SI Series Ethernet Switches

Release 1207

All versions except S5500-20TP-SI

Release 1301

S5500-20TP-SI

S5500-EI Series Ethernet Switches

Release 2102

All versions

S7500E Series Ethernet Switches

Release 6100, Release 6300

All versions

 

Configuration Procedure

 

l          Because BPDU tunneling and NTDP are mutually exclusive, to enable BPDU tunneling on a port, use the undo ntdp enable command to disable NTDP on the port first. For details about NTDP, refer to Cluster Management Configuration in the related product manual.

l          The S7500E series Ethernet switches do not support NTDP. Therefore, to enable BPDU tunneling on the port of an S7500E series Ethernet switch, you need not execute the undo ntdp enable command on the port.

l          The S7500E series Ethernet switches whose software version is Release 6300 do not support the bpdu-tunnel dot1q enable command. Therefore, when configuring such switches, you need not execute the bpdu-tunnel dot1q enable command.

 

1)        Configuration on Provider A

# Configure the destination multicast MAC address for BPDU tunnel frames as 0x0100-0CCD-CDD0.

<ProviderA> system-view

[ProviderA] bpdu-tunnel tunnel-dmac 0100-0ccd-cdd0

# Configure GigabitEthernet 1/0/1 as an access port and assign it to VLAN 2.

[ProviderA] interface GigabitEthernet 1/0/1

[ProviderA-GigabitEthernet1/0/1] port access vlan 2

# Configure GigabitEthernet 1/0/1 to transmit BPDUs transparently.

[ProviderA-GigabitEthernet1/0/1] stp disable

[ProviderA-GigabitEthernet1/0/1] undo ntdp enable

[ProviderA-GigabitEthernet1/0/1] bpdu-tunnel dot1q enable

[ProviderA-GigabitEthernet1/0/1] bpdu-tunnel dot1q stp

2)        Configuration on Provider B

# Configure the destination multicast MAC address for BPDU tunnel frames as 0x0100-0CCD-CDD0.

<ProviderB> system-view

[ProviderB] bpdu-tunnel tunnel-dmac 0100-0ccd-cdd0

# Configure GigabitEthernet 1/0/2 as an access port and assign it to VLAN 2.

[ProviderB] interface GigabitEthernet1/0/2

[ProviderB-GigabitEthernet1/0/2] port access vlan 2

# Configure GigabitEthernet 1/0/2 to transmit BPDUs transparently.

[ProviderB-GigabitEthernet1/0/2] stp disable

[ProviderB-GigabitEthernet1/0/2] undo ntdp enable

[ProviderB-GigabitEthernet1/0/2] bpdu-tunnel dot1q enable

[ProviderB-GigabitEthernet1/0/2] bpdu-tunnel dot1q stp

Complete Configuration

l          Configuration on ProviderA

#

 bpdu-tunnel tunnel-dmac 0100-0ccd-cdd0        

#

interface GigabitEthernet1/0/1

 port access vlan 2

 stp disable

 undo ntdp enable

 bpdu-tunnel dot1q enable

 bpdu-tunnel dot1q stp

l          Configuration on Provider B

#

 bpdu-tunnel tunnel-dmac 0100-0ccd-cdd0        

#

interface GigabitEthernet1/0/2

 port access vlan 2

 stp disable

 undo ntdp enable

 bpdu-tunnel dot1q enable

 bpdu-tunnel dot1q stp

Configuration Guidelines

l          By default, BPDU tunneling is enabeld globally and disabled on ports. To have BPDU tunneling take effect on a port, make sure that BPDU tunneling is enabeld globally. To enable BPDU tunneling globally, use the bpdu-tunnel dot1q enable command.

l          BPDU tunneling is mutually exclusive with GVRP, so these two features cannot be enabled at the same time. For introduction to GVRP, refer to GVRP Configuration Guide.

l          For BPDU tunnel frames to be recognized, the destination multicast MAC addresses configured for BPDU tunneling must be the same on the ingress and egress devices on the service provider network.

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