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Can't see the End node & Link in OpenFlow Topology

 
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Occasional Visitor

Can't see the End node & Link in OpenFlow Topology

I can't see the node and link in OpenFlow Topology when i add two PC to OpenFlow Switch, and ping PC A to B through a OpenFlow instance(that ping is success).

 

My Hardware & Software information :

 

OpenFlow Switch : HP 5130 EI Switch     Firmware : Version 7.1.045, Release 3106

 

Controller : VAN Controller Version 2.4.6.0627 & Ubuntu 12.04.5

 

OpenFlow Negotiated Version : 1.3

 

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In other way,it can display the node and link when i tried use Mininet to deploy the topology.

 

OpenFlow Negotiated Version : 1.0

 

MIninet vSwitch version : 1.4.6

 

I can controller the instance flow but just can't see the topology, I don't know where the configure is wrong.