[ovs-discuss] issue of vxlan inner packet

Guangvy 1965837689 at qq.com
Wed Mar 27 02:07:43 UTC 2013


Hi
   Given that there are OVS1 and OVS2, two VXLAN between these, 
VXLAN1000 and VXLAN2000 belong to same Bridge.
OVS1 send a packet through VXLAN1000, then VXLAN2000 of OVS2 will forward it 
once VXLAN1000 receive the packet.
So OVS1 will also receive the packet, next VXLAN1000 of OVS1 send it again.
The packet will continuously send between OVSs.
 
OVS1:
Bridge br2        
  Port "vxlan2000"              
   Interface "vxlan2000"                 
   type: vxlan                 
        options: {key="2000", remote_ip="2.2.2.1"}       
  Port "vxlan1000"             
   Interface "vxlan1000"                 
   type: vxlan                 
            options: {key="1000", remote_ip="1.1.1.1"}         
  Port br2             
   Interface br2                
   type: internal
 
OVS2:
Bridge br2        
  Port "vxlan2000"              
   Interface "vxlan2000"                 
   type: vxlan                 
        options: {key="2000", remote_ip="2.2.2.2"}       
  Port "vxlan1000"             
   Interface "vxlan1000"                 
   type: vxlan                 
            options: {key="1000", remote_ip="1.1.1.2"}         
  Port br2             
   Interface br2                
   type: internal



------------------ Original ------------------
From:  "Jesse Gross"<jesse at nicira.com>;
Date:  Tue, Mar 26, 2013 11:10 PM
To:  "Guangvy"<1965837689 at qq.com>;
Cc:  "discuss"<discuss at openvswitch.org>;
Subject:  Re: [ovs-discuss] issue of vxlan inner packet

On Mon, Mar 25, 2013 at 7:29 PM, Guangvy <1965837689 at qq.com> wrote:
> Hi
>
> Here is my configurations.
>
> vxlan1000 will decapsulate when received an vxlan packet with key=1000.
>
> My test result is that vxlan2000 will receive the inner packet, encapsulate
> and send out with key=2000.
>
> so why vxlan2000 forward the inner packet? is a normal situation?

These are just ports that will receive a given VNI.  Once the packet
is received, the ports are bridged together.
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