<link id="2" bandwidth="1MBps" latency="10ms"/>
<link id="3" bandwidth="1MBps" latency="10ms"/>
<link id="4" bandwidth="1MBps" latency="10ms"/>
<link id="2" bandwidth="1MBps" latency="10ms"/>
<link id="3" bandwidth="1MBps" latency="10ms"/>
<link id="4" bandwidth="1MBps" latency="10ms"/>