Add zypper proxy: Add http and https proxy in file /etc/sysconfig/proxy;
YaST:
Find a fast repo: http://mirrors.opensuse.org/ http://mirrors.hust.edu.cn/opensuse/ -> http://mirrors.hust.edu.cn/opensuse/update/13.1/
add repo: zypper ar -c http://mirrors.ustc.edu.cn/opensuse/update/13.1/ ustc
list repo with priority: zypper lr -p
modify repo priority: zypper mr -p 100 ustc zypper mr --help
Refresh repo: zypper ref ustc
Update or install from a specific repo: zypper up -r ustc Average 200KB/s.