I got it. We currently have two kinds of cell phone: Motorola CDMA Droid which 3G interface is point-to-point; GSM Nexus One which 3G interface is normal ethernet. So maybe ovs can work on GSM cell phone, we are trying that.
So far there is a weird problem when i cross compiled ovs-openflowd, it is following: vconn.o: In function `.LANCHOR0': vconn.c:(.data.rel.ro.pvconn_classes+0x0): undefined reference to `ptcp_pvconn_class' vconn.c:(.data.rel.ro.pvconn_classes+0x4): undefined reference to `punix_pvconn_class' vconn.o: In function `.LANCHOR1': vconn.c:(.data.rel.ro.vconn_classes+0x0): undefined reference to `tcp_vconn_class' vconn.c:(.data.rel.ro.vconn_classes+0x4): undefined reference to `unix_vconn_class' collect2: ld returned 1 exit status but i can not find the definition of the above xxx_xconn_class in ovs source code, it is search result: grep tcp_vconn_class ./* -r ./lib/vconn.c: &tcp_vconn_class, Binary file ./lib/vconn-stream.o matches ./lib/vconn-provider.h:extern struct vconn_class tcp_vconn_class; i also searched the keywords by google, but got nothing. So anyone can give me some clues to solve the problem? Thanks a lot 2011/2/3 Jesse Gross <je...@nicira.com> > On Thu, Feb 3, 2011 at 12:33 PM, Ben Pfaff <b...@nicira.com> wrote: > > On Wed, Feb 02, 2011 at 09:53:49PM -0800, Yongqiang Liu wrote: > >> but when i added 3G interface, which appears as a ppp0 interface, there > is > >> an error: > >> # ./ovs-dpctl add-if dp0 ppp0 > >> Feb 02 21:41:03|00001|dpif|WARN|system@dp0: failed to add ppp0 as port: > >> Invalid argument > >> ovs-dpctl: adding ppp0 to dp0 failed (Invalid argument) > >> > >> the following is the interface information of ppp0: > >> # ifconfig ppp0 > >> ppp0: ip 10.231.190.28 mask 255.255.255.255 flags [up point-to-point > running > >> multicast > >> > >> Does anyone ever adds point-to-point interface to ovs on PC? > > > > Currently OVS only allows Ethernet interfaces (ARPHRD_ETHER) to be > > added. A PPP interface presumably has PPP encapsulation (ARPHRD_PPP). > > I don't think that PPP encapsulates Ethernet frames (doesn't it > > typically encapsulate IP?). Since the Open vSwitch datapath only > > supports Ethernet, I don't think that it will work. > > > > (There are lots of assumptions above; I haven't checked my facts. I > > hope that someone will correct me if I am wrong.) > > Yes, all of that is right. >
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