3com 5500-ei pwr Installation Instruction

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Configuring Rapid Transition 
Configuration prerequisites 
As shown in 
, a 3Com switch 5500-EI is connected to another manufacturer's switch. The 
former operates as the downstream switch, and the latter operates as the upstream switch. The 
network operates normally. 
The upstream switch is running a proprietary spanning tree protocol that is similar to RSTP in the way to 
implement rapid transition on designated ports. Port 1 is the designated port. 
The downstream switch is running MSTP. Port 2 is the root port. 
Figure 1-8 
Network diagram for rapid transition configuration 
 
 
Configuration procedure 
1)  Configure the rapid transition feature in system view 
Follow these steps to configure the rapid transition feature in system view: 
To do... 
Use the command... 
Remarks 
Enter system view 
system-view 
— 
Enable the rapid transition 
feature 
stp interface
 interface-type 
interface-number
 
no-agreement-check
 
Required 
By default, the rapid transition 
feature is disabled on a port. 
 
2)  Configure the rapid transition feature in Ethernet port view 
Follow these steps to configure the rapid transition feature in Ethernet port view: 
To do... 
Use the command... 
Remarks 
Enter system view 
system-view 
— 
Enter Ethernet port view 
interface
 interface-type 
interface-number
 
— 
Enable the rapid transition 
feature 
stp no-agreement-check 
Required 
By default, the rapid transition 
feature is disabled on a port.