Every bridge that I create and set a controller to it, NOX GUI shows me 1 node. So, if I create 10 bridges in a single switch and set a controller for each of them, NOX is going to show me 10 nodes. But I think that the "normal" is to have only one node for each switch instead of a node for each bridge in the switch. Am I wrong? Maybe the "problem" is with NOX, not with OpenvSwitch..
2011/9/10 Ben Pfaff <[email protected]> > I really don't understand now. If you create a single bridge and put > both VMs on it, why is there more than one bridge? And, if you do have > more than one bridge, why is it a burden to set the controller for each > one? > > On Sat, Sep 10, 2011 at 02:11:15PM -0300, Lucas Henrique Mauricio wrote: > > The hard part is that I don't want to set the controller for every > bridge. > > Is there a way to tell the controller about the whole switch? That way > the > > controller would know every flow that passes through a switch without > > telling him about every bridge. > > > > 2011/9/10 Ben Pfaff <[email protected]> > > > > > Create a single bridge and put both VMs on it. What's the hard part? > > > > > > On Sat, Sep 10, 2011 at 02:01:08PM -0300, Lucas Henrique Mauricio > wrote: > > > > But I'm using the NOX Zaku GUI and when I create a br0 to connect the > VM1 > > > > with the host PC with NOX and a br1 to connect the VM1 with VM2, the > GUI > > > > shows 2 "switches". That way, for each VM I would have to dots in the > NOX > > > > GUI. Besides this, it doesn't show a link connecting the two VMs... > Do I > > > > need these two bridges? > > > > > > > > Can I set a bridge to connect the two VMs (like br1) and use it > without > > > > setting a controller for it? I think it doesn't work.. > > > > > > > > Best regards > > > > > > > > 2011/9/10 Ben Pfaff <[email protected]> > > > > > > > > > There is no need to use ovs-dpctl with ovs-vswitchd. ovs-vswitchd > > > > > manages the datapath itself. You can manage a bridge, and create > and > > > > > destroy bridges, with ovs-vsctl alone. > > > > > > > > > > On Sat, Sep 10, 2011 at 01:43:56PM -0300, Lucas Henrique Mauricio > > > wrote: > > > > > > Ok, I see. But if I have 2 VMs and I want them to connect to each > > > other > > > > > > directly? I need to create a bridge with ovs-vsctl and use the > > > > > > set-controller? Or I can use a datapath with ovs-dpctl? > > > > > > > > > > > > Using a bridge and setting the controller on each VM I could > ping, > > > but > > > > > using > > > > > > a datapath I couldn't. > > > > > > > > > > > > In previous versions of openvswitch I used to create a datapath > an > > > the > > > > > its > > > > > > controller with ovs-openflowd. Now I don't know how to do this. > If a > > > use > > > > > > ovs-vsctl set-controller with a datapath (DP), the command > returns > > > "no > > > > > > bridged named dp0" > > > > > > > > > > > > Thanks in advance. > > > > > > > > > > > > 2011/9/8 Ben Pfaff <[email protected]> > > > > > > > > > > > > > With ovs-vswitchd, starting the switch daemon and configuring > the > > > > > > > switch are two different steps. Once you've started the > switch, > > > the > > > > > > > "ovs-vsctl set-controller" command configures the controller. > > > > > > > > > > > > > > If you have multiple bridges (datapaths) and you want all of > them > > > to > > > > > > > connect to a controller, then yes you do need to configure each > of > > > > > > > them separately to connect to that controller using a similar > > > command. > > > > > > > > > > > > > > On Thu, Sep 08, 2011 at 04:56:13PM -0300, Lucas Henrique > Mauricio > > > > > wrote: > > > > > > > > So the command that substitutes ovs-openflowd <dp> > > > tcp:<ip>:<port> is > > > > > > > > ovs-vsctl set-controller br0 tcp:<ip of controller>:<port>? > > > > > > > > > > > > > > > > Another question, I used to tell every dp to the controller.. > Is > > > it > > > > > > > > still necessary? Do I use the same command you told me? > > > > > > > > > > > > > > > > Best regards, > > > > > > > > > > > > > > > > 2011/9/8 Ben Pfaff <[email protected]>: > > > > > > > > > On Thu, Sep 08, 2011 at 04:26:27PM -0300, Lucas Henrique > > > Mauricio > > > > > > > wrote: > > > > > > > > >> I have the NOX (Zaku) controller installed in my host and > an > > > > > > > > >> openvswitch (v1.2.1) running as openflow switch in a > virtual > > > > > machine > > > > > > > > >> created with VirtualBox. The virtual machine has an > interface > > > > > (eth1) > > > > > > > > >> connected to the host. Before setting datapaths, the vm > can > > > reach > > > > > the > > > > > > > > >> host, but when I set a datapath, the vm can't. When I used > > > > > openvswitch > > > > > > > > >> (v1.1.0) and NOX (v0.5) in the same machine, I just had to > do > > > > > > > > >> ovs-openflowd dp# tcp:<ip of controller>:<port> to connect > the > > > > > switch > > > > > > > > >> to the controller. > > > > > > > > >> > > > > > > > > >> What can I do to solve this? I don't even know the command > > > that > > > > > > > > >> substitutes ovs-openflowd in the openvswitch v1.2.1.. =( > Is it > > > > > > > > >> ovs-ofctl? How can I use it? > > > > > > > > > > > > > > > > > > Please set up OVS according to INSTALL.Linux. ?After that, > to > > > > > > > > > configure a controller on br0: > > > > > > > > > ? ? ? ?ovs-vsctl set-controller br0 tcp:<ip of > > > controller>:<port> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > Lucas Henrique Mauricio > > > > > > > > > > > > > > > > Brasil > > > > > > > > Universidade Federal do Rio de Janeiro > > > > > > > > Escola Polit?cnica > > > > > > > > Engenharia Eletr?nica e de Computa??o > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > Lucas Henrique Mauricio > > > > > > > > > > > > Universidade Federal do Rio de Janeiro > > > > > > Escola Polit?cnica > > > > > > Engenharia Eletr?nica e de Computa??o > > > > > > > > > > > > > > > > > > > > > -- > > > > Lucas Henrique Mauricio > > > > > > > > Universidade Federal do Rio de Janeiro > > > > Escola Polit?cnica > > > > Engenharia Eletr?nica e de Computa??o > > > > > > > > > > > -- > > Lucas Henrique Mauricio > > > > Universidade Federal do Rio de Janeiro > > Escola Polit?cnica > > Engenharia Eletr?nica e de Computa??o > -- Lucas Henrique Mauricio Universidade Federal do Rio de Janeiro Escola Politécnica Engenharia Eletrônica e de Computação
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