3com S7906E Manuel De Montage

 

1-5 

Enter system view 

system-view 

— 

Enter Layer 2 aggregate interface 
view 

interface 
bridge-aggregation 
interface-number 

— 

Enable BPDU tunneling for a 
protocol on the Layer 2 aggregate 
interface 

bpdu-tunnel dot1q { cdp | 
gvrp | hgmp | pvst | stp | 
vtp } 

Required 

By default, BPDU tunneling for 
a protocol is disabled.  

 

By default, the destination multicast MAC address for BPDUs is 0x010F-E200-0003. You can change 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 BPDUs: 

Enter system view 

system-view 

— 

Configure the destination multicast 
MAC address for BPDUs 

bpdu-tunnel tunnel-dmac 
mac-address  

Optional 

0x010F-E200-0003 by default.

 

For BPDUs to be recognized, the destination multicast MAC addresses configured for BPDU tunneling 

must be the same on the edge devices on the service provider network.  

 

As shown in 

z 

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.  

z 

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. 

z 

MSTP is enabled on User A’s network.  

It is required that, 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 be 0x0100-0CCD-CDD0.