H3C Technologies H3C WX6000 Series Access Controllers - Manual (Page 111)

13-4
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BPDU tunneling must be enabled globally before the BPDU tunnel configuration for a port can take
effect.
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The BPDU tunneling feature is incompatible with the GVRP feature, so these two features cannot
be enabled at the same time. For introduction to GVRP, refer to VLAN in H3C WX6103 Access
Controller Switch Interface Board Configuration Guide .
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The BPDU tunneling feature is incompatible with the NTDP feature, so these two features cannot
be enabled at the same time. If you want to enable BPDU tunneling on a port, use the undo ntdp
enable command to disable NTDP first. For introduction to NTDP, refer to Cluster Management in
H3C WX6103 Access Controller Switch Interface Board Configuration Guide .
Configuring Destination Multicast MAC Address for BPDU Tunnel
Frames
By default, the destination multicast MAC address for BPDU Tunnel frames is 0x010F-E200-0003. You
can modify it to 0x0100-0CCD-CDD0, 0x0100-0CCD-CDD1 or 0x0100-0CCD-CDD2 through the
following configuration.
Follow these steps to configure destination multicast MAC address for BPDU tunnel frames:
To do… Use the command… Remarks
Enter system view system-view —
Configure the destination
multicast MAC address for
BPDU Tunnel frames
bpdu-tunnel tunnel-dmac
mac-address
Optional
0x010F-E200-0003 by default.
BPDU Tunneling Configuration Example
Network requirements
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Customer A, Customer B, Customer C, and Customer D are customer network access devices.
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Provider A, Provider B, and Provider C are service provider network access devices, which are
interconnected through configured trunk ports.
The configuration is required to satisfy the following requirements:
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Geographically dispersed customer network devices Customer A, Customer C and Customer D
can implement consistent spanning tree calculation across the service provider network.
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BPDU packets from Customer B are isolated so it does not take part in the spanning tree
calculation.