Operation Manual – IRF Fabric 
Quidway S5600 Series Ethernet Switches-Release 1510  Chapter 1  
IRF Fabric Configuration
 
Huawei Technologies Proprietary 
1-6 
Table 1-4 Set an unit ID to a new value 
Operation  Command  Description 
Enter system view
 
system-view 
— 
Set a unit ID to a new 
value
 
change unit-id unit-id1 to {  unit-id2 | 
auto-numbering } 
Optional
 
 
  Note: 
z  Unit IDs in an IRF fabric are not always arranged in order of 1 to 8.  
z  Unit IDs of an IRF fabric can be inconsecutive.  
 
After you change the unit ID of switches, the following operations are performed. 
z  If the modified unit ID does not exist in the IRF fabric, the system sets its priority 
to 5 and saves it in the unit Flash memory.  
z  If the modified unit ID is an existing one, the system prompt you to confirm if you 
really want to change the unit ID. If you choose to change, the existing unit ID is 
replaced and the priority is set to 5. Then you can use the fabric save-unit-id 
command to save the modified unit ID into the unit Flash memory and clear the 
information about the existing one.  
z  If auto-numbering is selected, the system sets the unit ID priority to 10. You can 
use the fabric save-unit-id command to save the modified unit ID into the unit 
Flash memory and clear the information about the existing one.  
 
  Note:  
Priority is the reference for FTM module to perform automatic numbering. The value 
of priority can be 5 or 10. A smaller value represents a higher priority. Priority 5 means 
the switch adopts manual numbering, and priority 10 means the switch adopts 
automatic numbering.   
 
After the configuration of numbering, you can use the following command in the table 
to save the local unit ID in the unit Flash memory. When you restart the switch, it can 
load the unit ID configuration automatically.  
Table 1-5 Save the unit ID of each unit in the IRF fabric 
Operation  Command  Description 
Save the unit ID of each unit in the 
IRF fabric. 
 
fabric save-unit-id 
Optional