<link id="l1_UP" bandwidth="125MBps" latency="100us"/>
<link id="l1_DOWN" bandwidth="125MBps" latency="100us"/>
<host_link id="host1" up="l1_UP" down="l1_DOWN"/>
<link id="l1_UP" bandwidth="125MBps" latency="100us"/>
<link id="l1_DOWN" bandwidth="125MBps" latency="100us"/>
<host_link id="host1" up="l1_UP" down="l1_DOWN"/>