2010/11/9 Yue ZHANG <[email protected]>: > Hi, dear, > > > Thanks for your quickly reply. > > I've insmod the OvS to replace original kernal bridge in the KVM host, and > configured br0 and vif1(qemu param:-net tap,vlan=0,ifname=vif1) which is the > interface of the KVM guest. > > #ovs-vsctl add-br br0 > #ovs-vsctl add-port br0 vif1 > > Then it seems like that: > #ovs-dpctl show br0 > sys...@dp0: > flows: xxxx > ... > port 0: br0 (internal) > port 1: vif1 <--- The KVM guest interface > > > Then I ifconfig br0 with 192.168.2.1 in the KVM host, and ifconfig eth0 with > 192.168.2.2 in the KVM guest. > > I think the KVM guest(192.168.2.2) and br0(192.168.2.1) should be connected > automatically, is it? But the tcpdump result is strange that the vif1 could > send packet to br0, but could not receive any incoming packet. > > If ping from kvm guest(2.2) to br0(2.1), br0 will receive arp request and > return mac addr correctly, but the guest(2.2) will not receive the returned > mac addr. > If ping from br0 to kvm guest, br0 sent arp request, but kvm guest(2.2) > still received no packet. > > There maybe something wrong, either the configuration of OvS or the KVM, it > will be great help if you have some ideas, or give me some suggestions on > how to debug, thanks!
Hmm, normally traffic should be able to flow in both directions, assuming a default configuration. Are you using an OpenFlow controller? Assuming not, there are a few things that I would look at: ovs-ofctl dump-flows br0 (this will give the high level OpenFlow flows) ovs-dpctl dump-flows br0 (this will show how the OpenFlow flows are applied to the current traffic) tcpdump on the various interfaces: br0, vif1, eth0 in the guest to see where traffic is getting dropped or if it is making it through but the OS is not responding _______________________________________________ discuss mailing list [email protected] http://openvswitch.org/mailman/listinfo/discuss_openvswitch.org
