Preface 
The H3C S5120-EI documentation set includes 10 command references, which describe the 
commands and command syntax options for the S5120-EI Series Ethernet Switches, 
Release2208. 
The IRF Command Reference describes IRF configuration commands for creating an IRF 
virtual device. It covers the commands for binding physical ports to an IRF port, configuring 
the member switch ID and priority, and detecting and maintaining the IRF link. 
This preface includes:  
• 
Audience 
• 
Added and modified commands 
• 
Conventions 
• 
About the H3C S5120-EI documentation set 
• 
Obtaining documentation 
• 
Technical support 
• 
Documentation feedback 
Audience 
This documentation is intended for: 
•  Network planners 
•  Field technical support and servicing engineers 
•  Network administrators working with the S5120-EI series 
Added and modified commands 
Compared to Release2202, Release2208 adds, modifies, and deletes the following 
commands: 
Command reference  Added and modified commands 
IRF 
Added command(s): 
•  display irf-port load-sharing mode 
•  display mad 
•  irf domain 
•  irf member description 
•  irf-port 
•  irf-port load-sharing mode 
•  irf-port-configuration active 
•  mad arp enable 
•  mad enable 
•  mad exclude interface 
•  mad restore 
•  port group interface 
Deleted command(s):