Hi, I'm Xen to do my Final Project in the University.
My goal is to test Xen as virtual router and also test it as VLAN server.
I'm trying to test this environments with Iperf and monitoring Dom0 and DomU
CPU's with SNMP.
My problem is with de virtual interfaces. I've been tested the packet rate
using DomU as router, and physical machines as client and server with
Iperf.
If I configure the physical interfaces directly to the DomU, there are no
problem. The DomU see that as 100Mb/s interfaces and the packet rate is the
same that in a physical linux router.
The problem is when I configure the network with bridged. The virtual
interfaces apears on DomU as 10Mb/s and the packet rate is limited aprox. in
14.000 pack/s without CPU o RAM saturation.
See the snmpwalk of IfHighSpeed in DomU(Dom_id=2) and Dom0
Dom0
IF-MIB::ifName.2 = STRING: peth0
IF-MIB::ifName.3 = STRING: peth1
IF-MIB::ifName.4 = STRING: peth2
IF-MIB::ifHighSpeed.2 = Gauge32: 100
IF-MIB::ifHighSpeed.3 = Gauge32: 100
IF-MIB::ifHighSpeed.4 = Gauge32: 100
IF-MIB::ifName.5 = STRING: vif0.0
IF-MIB::ifName.7 = STRING: vif0.1
IF-MIB::ifName.9 = STRING: vif0.2
IF-MIB::ifHighSpeed.5 = Gauge32: 10
IF-MIB::ifHighSpeed.7 = Gauge32: 10
IF-MIB::ifHighSpeed.9 = Gauge32: 10
IF-MIB::ifName.13 = STRING: eth2
IF-MIB::ifName.14 = STRING: eth1
IF-MIB::ifName.15 = STRING: eth0
IF-MIB::ifHighSpeed.13 = Gauge32: 1000
IF-MIB::ifHighSpeed.14 = Gauge32: 1000
IF-MIB::ifHighSpeed.15 = Gauge32: 1000
IF-MIB::ifName.20 = STRING: vif2.0
IF-MIB::ifName.21 = STRING: vif2.1
IF-MIB::ifName.22 = STRING: vif2.2
IF-MIB::ifHighSpeed.20 = Gauge32: 1000
IF-MIB::ifHighSpeed.21 = Gauge32: 1000
IF-MIB::ifHighSpeed.22 = Gauge32: 1000
DomU
IF-MIB::ifHighSpeed.1 = Gauge32: 10
IF-MIB::ifHighSpeed.2 = Gauge32: 10
IF-MIB::ifHighSpeed.3 = Gauge32: 10
IF-MIB::ifHighSpeed.4 = Gauge32: 10
IF-MIB::ifName.1 = STRING: lo
IF-MIB::ifName.2 = STRING: eth0
IF-MIB::ifName.3 = STRING: eth1
IF-MIB::ifName.4 = STRING: eth2
I know that my network speed is no limited at 10Mb/s but the packet rate
yes.
I'm trying to change the Virtual Interface configuration but I don't know
how to do this.
Thanks
--
Wark
My goal is to test Xen as virtual router and also test it as VLAN server.
I'm trying to test this environments with Iperf and monitoring Dom0 and DomU
CPU's with SNMP.
My problem is with de virtual interfaces. I've been tested the packet rate
using DomU as router, and physical machines as client and server with
Iperf.
If I configure the physical interfaces directly to the DomU, there are no
problem. The DomU see that as 100Mb/s interfaces and the packet rate is the
same that in a physical linux router.
The problem is when I configure the network with bridged. The virtual
interfaces apears on DomU as 10Mb/s and the packet rate is limited aprox. in
14.000 pack/s without CPU o RAM saturation.
See the snmpwalk of IfHighSpeed in DomU(Dom_id=2) and Dom0
Dom0
IF-MIB::ifName.2 = STRING: peth0
IF-MIB::ifName.3 = STRING: peth1
IF-MIB::ifName.4 = STRING: peth2
IF-MIB::ifHighSpeed.2 = Gauge32: 100
IF-MIB::ifHighSpeed.3 = Gauge32: 100
IF-MIB::ifHighSpeed.4 = Gauge32: 100
IF-MIB::ifName.5 = STRING: vif0.0
IF-MIB::ifName.7 = STRING: vif0.1
IF-MIB::ifName.9 = STRING: vif0.2
IF-MIB::ifHighSpeed.5 = Gauge32: 10
IF-MIB::ifHighSpeed.7 = Gauge32: 10
IF-MIB::ifHighSpeed.9 = Gauge32: 10
IF-MIB::ifName.13 = STRING: eth2
IF-MIB::ifName.14 = STRING: eth1
IF-MIB::ifName.15 = STRING: eth0
IF-MIB::ifHighSpeed.13 = Gauge32: 1000
IF-MIB::ifHighSpeed.14 = Gauge32: 1000
IF-MIB::ifHighSpeed.15 = Gauge32: 1000
IF-MIB::ifName.20 = STRING: vif2.0
IF-MIB::ifName.21 = STRING: vif2.1
IF-MIB::ifName.22 = STRING: vif2.2
IF-MIB::ifHighSpeed.20 = Gauge32: 1000
IF-MIB::ifHighSpeed.21 = Gauge32: 1000
IF-MIB::ifHighSpeed.22 = Gauge32: 1000
DomU
IF-MIB::ifHighSpeed.1 = Gauge32: 10
IF-MIB::ifHighSpeed.2 = Gauge32: 10
IF-MIB::ifHighSpeed.3 = Gauge32: 10
IF-MIB::ifHighSpeed.4 = Gauge32: 10
IF-MIB::ifName.1 = STRING: lo
IF-MIB::ifName.2 = STRING: eth0
IF-MIB::ifName.3 = STRING: eth1
IF-MIB::ifName.4 = STRING: eth2
I know that my network speed is no limited at 10Mb/s but the packet rate
yes.
I'm trying to change the Virtual Interface configuration but I don't know
how to do this.
Thanks
--
Wark