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<p><font size="2" face="sans-serif">Dear,</font><br>
<br>
<font size="2" face="Verdana"><br>
When OVS plugin is used with GRE option in Neutron, I see that each compute <br>
node has br-tun and br-int bridges created. </font><font size="3" face="serif"><br>
</font><font size="2" face="Verdana"><br>
I'm trying to understand why we need the additional br-tun bridge here. <br>
Can't we create tunneling ports in br-int bridge, and have br-int relay <br>
traffic between VM ports and tunneling ports directly? Why do we have to <br>
introduce another br-tun bridge? </font><font size="3" face="serif"> </font><br>
<font size="2" face="sans-serif"><br>
<br>
Regards,<br>
Juno Zhu<br>
Staff Software Engineer, System Networking<br>
China Systems and Technology Lab (CSTL), IBM Wuxi<br>
Email: nazhu@cn.ibm.com</font></body></html>