> On Aug 8, 2016, at 4:45 AM, Jerome Eichler <jer...@eichler.org> wrote: > > Dear all, > > although there are few blogs on the web regarding this matter my problem > cannot be resolved following them. > > My setup: > XenServer 7.0 with 2 NICs onboard. NIC1 (eth1) is connected to my Juniper > switch (EX-4200-48T). At this Juniper-Port all traffic in my network is being > mirrored to. > > What I want to do: > Forward all that traffic from eth1 to my VM's interface. I assigned the > interface eth1 to the vm as secondary interface. > > In XenServer itself I also put all the network interfaces (physical ones as > well as the virtual ones) to promisc mode. > Following this blog article: > http://blog.manula.org/2014/02/port-mirroring-with-openvswitch.html I > configured OVS to mirror all that traffic from eth1 to vif1.1 (which is the > virtual interface of the physical interface eth1 inside the VM) > > +++ > ovs-vsctl -- set Bridge xenbr1 mirrors=@m -- --id=@eth1 get Port eth1 -- > --id=@vif1.1 get Port vif1.1 -- --id=@m create Mirror name=mirror1 > select-dst-port=@eth1 select-src-port=@eth1 output-port=@vif1.1 > +++ > > Then I am able to see some traffic on eth1 in my VM. But it seems to be not > all traffic. > I am using pmacct to collect data, this data is being stored to a mysql > database and from there being handled further by own scripts. > > I did a download of a 10GB file. So I should see 10GB downloaded, but I only > see around 400MB. > > When starting pmacct on the xenserver host itself, I see the whole 10GB > thing. So I assume that not all traffic is forwarded from eth1 to vif1.1? > What am I doing wrong? Anybody here that can help?
I'm not familiar with pmacct, but a quick look at the documentation makes it look like by default it captures 4KB per packet. It could also be dropping packets. There are a lot of variables here. You may want to check the interface statistics in both the guest and dom0 to make sure those are right. --Justin _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
