xen-users
Re: [Xen-users] Gigabit Interface - XEN Full Virtualization
Artur Baruchi wrote:
Hi Guys,
I installed a full virtual machine, and its using a eth1 bridge.
Well... in my real machine, this eth1 is a gigabit interface, as u can
see:
[root@athlonam2 CONF]# ethtool peth1
Settings for peth1:
Supported ports: [ MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: MII
PHYAD: 1
Transceiver: external
Auto-negotiation: on
Supports Wake-on: g
Wake-on: d
Link detected: yes
I noted that the lspci output are different, and I would like to know,
how can I make my xen virtual machine see the same Hardware, so I can
force a 1000 Full speed.
You can't get Gigabit speed for your NIC in HVM. Whatever network cards
you have on the physical system, it's emulated as a 10/100 mbps Realtek
card to the HVM.
Use paravirtualized drivers for HVMs to enhance the network card
performance and throughput, but don't expect 1000 mbps. :-)
--Sadique
REAL:
[root@athlonam2 CONF]# lspci | grep -i ether
04:08.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8169
Gigabit Ethernet (rev 10)
VIRTUAL:
[root@linuxxen01 ~]# lspci | grep -i ether
00:04.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 20)
Thanks,
Att.
Artur Baruchi
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