H3C Technologies H3C S3600 Series Switches - Manual (Page 1047)

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To prevent the devices in the service provider network from processing the tunnel packets as other
protocol packets, the MAC address of a tunnel packet must be a multicast address uniquely assigned to
the BPDU tunnel in the service provider network.
BPDU Tunnel Configuration
You can establish BPDU tunnels between S3600 series Ethernet switches for the packets of the
following protocols:
z LACP (link aggregation control protocol)
z STP (spanning tree protocol)
z HGMP-related protocols, including: NDP (neighbor discovery protocol), NTDP (neighbor topology
discovery protocol), cluster MRC (cluster member remote control), and HABP (Huawei
authentication bypass protocol)
z Proprietary protocols of other vendors, including CDP (CISCO discovery protocol), PAGP (port
aggregation protocol), PVST (per-VLAN spanning tree), VTP (VLAN trunk protocol), and UDLD
(uni-directional link discovery)
Configuration Prerequisites
The edge devices can communicate with the user devices properly.
Configuring a BPDU Tunnel
Follow these steps to configure a BPDU tunnel:
To do... Use the command... Remarks
Enter system view system-view —
Configure a private multicast
MAC address for packets
transmitted along the tunnel
bpdu-tunnel tunnel-dmac
mac-address
Optional
By default, the destination MAC
address for packets transmitted
along a BPDU tunnel is
010f-e200-0003.
Enter Ethernet port view
interface interface-type
interface-number
—
Enable BPDU tunnel for
packets of a specific protocol
bpdu-tunnel protocol-type
Required
By default, BPDU tunnel is
disabled for packets of any
protocol.