[ovs-discuss] ovs-ofctl questions

韩金朋 hanjp at neusoft.com
Thu Jan 31 08:28:13 UTC 2013


hi all:
    I have two  virtual machines ,they have a different vlan tag,asfollws

[root at node50 ~]# ovs-vsctl show
98dd8985-540b-4838-a321-11006fa96694
    Bridge "virbr0"
        Port "virbr0-nic"
            Interface "virbr0-nic"
        Port "virbr0"
            Interface "virbr0"
                type: internal
    Bridge "br0"
        Port "br0"
            Interface "br0"
                type: internal
        Port "vnet1"
            tag: 20
            Interface "vnet1"
        Port "eth0"
            Interface "eth0"
        Port "vnet0"
            tag: 10
            Interface "vnet0"
    ovs_version: "1.7.1" 
   
   I used the ovs-ofctl to modify the vnet0 vlan tag, as follows 

   [root at node50 ~]# ovs-ofctl add-flow br0 idle_timeout=0,in_port=2,actions=mod_vlan_vid:20,output:3("3" is vnet1 port)
   
   Then I used ovs-dpcta View package,
   in_port(2),eth(src=02:00:0a:01:00:05,dst=ff:ff:ff:ff:ff:ff),eth_type(0x0806),arp(sip=10.1.0.5,tip=10.1.0.1,op=1,sha=02:00:0a:01:00:05,tha=00:00:00:00:00:00), packets:65, bytes:2730, used:1.148s, actions:push_vlan  (vid=20,pcp=0),3
   
    the vlan id has changed to 20 ,but two virtual machines to each other or the ping fails.
    Please help ,Thanks. 






韩金朋
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