tree 111f3811fbf94d44e35f6520efd4165d66c11e30
parent f7536ab2ee01f1bfb0006d90577f26148a4a24bb
author Pingping Lin <pingping@onlab.us> 1430952070 -0700
committer Gerrit Code Review <gerrit@onlab.us> 1431118454 +0000

add a new module to handle failed vBNG requests

 If the vBNG manager failed to create a vBNG for a private IP address
 for the first time, usurally because the next hop host or host configured
 with private IP address is not in the ONOS system. During the first time
 to create a vBNG, if such case happens, vBNG manager will send out the
 probe packets to try to find those hosts.

 Thus, we should try to create vBNG again after the probe packets.

Change-Id: Ib8684602d4f761d2d09ac8d93738120aa57ce225