Proxmox 3.1 no stable windows guest network!

[beliy]

Hello, i have problem with windows guest in Proxmox 3.1. The problem is the unstable work for network interface in windows guest.
Virtio driver instaled and is latest version. Unstable work is in any model network (virtio, intel, realtec)

My settings:

# cat /etc/pve/qemu-server/104.conf
bootdisk: virtio0
cores: 1
ide0: local:iso/virtio-win-0.1-65.iso,media=cdrom,size=60558K
ide2: local:iso/ru_windows_server_2008_r2_standard_enterprise_datacenter_web_vl_build_x64_dvd_x15-59789.iso,media=cdrom
memory: 2048
name: w2008r2
net0: virtio=1E:6E:DF:DD:9C:46,bridge=vmbr0
ostype: win7
scsihw: virtio-scsi-pci
sockets: 1
vga: qxl
virtio0: data:vm-104-disk-1,size=20G

# pveversion -v
proxmox-ve-2.6.32: 3.1-109 (running kernel: 2.6.32-23-pve)
pve-manager: 3.1-3 (running version: 3.1-3/dc0e9b0e)
pve-kernel-2.6.32-20-pve: 2.6.32-100
pve-kernel-2.6.32-23-pve: 2.6.32-109
lvm2: 2.02.98-pve4
clvm: 2.02.98-pve4
corosync-pve: 1.4.5-1
openais-pve: 1.1.4-3
libqb0: 0.11.1-2
redhat-cluster-pve: 3.2.0-2
resource-agents-pve: 3.9.2-4
fence-agents-pve: 4.0.0-1
pve-cluster: 3.0-7
qemu-server: 3.1-1
pve-firmware: 1.0-23
libpve-common-perl: 3.0-6
libpve-access-control: 3.0-6
libpve-storage-perl: 3.0-10
pve-libspice-server1: 0.12.4-1
vncterm: 1.1-4
vzctl: 4.0-1pve3
vzprocps: 2.0.11-2
vzquota: 3.1-2
pve-qemu-kvm: 1.4-17
ksm-control-daemon: 1.1-1
glusterfs-client: 3.4.0-2

# pveperf
CPU BOGOMIPS:      40000.88
REGEX/SECOND:      954795
HD SIZE:           50.45 GB (/dev/mapper/pve-root)
BUFFERED READS:    288.85 MB/sec
AVERAGE SEEK TIME: 3.99 ms
FSYNCS/SECOND:     84.88
DNS EXT:           65.24 ms
DNS INT:           59.16 ms (prox)

Many thanks for any help.

 

[spirit]

what do you mean by unstable ?

packet loss ? low bandwith ?

 

[beliy]

what do you mean by unstable ?

packet loss ? low bandwith ?

random time not ping and anytime low bandwith

 

[spirit]

no problem to ping from proxmox host ?
what is the hardware card model ?

 

[wahmed]

Do you have any other VM working ok in that host? Is the problem isolated to that Windows VM only?

Did you try to switch the NIC with a different one to see of the problem persists?

Did you try to migrate the VM to a different Proxmox host to see if the problem persists?

Is it a Realtek NIC?

 

[beliy]

no problem to ping from proxmox host ?

seems to be yes, problem is randomed. Now ping fine, but work in rdp has many freeze. Partially help change network speed in setting

what is the hardware card model ?

Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet

Do you have any other VM working ok in that host? Is the problem isolated to that Windows VM only?

Now tested on other KVM host and have this problem on all KVM host.

Did you try to switch the NIC with a different one to see of the problem persists?

At the moment there is no possibility check.

Did you try to migrate the VM to a different Proxmox host to see if the problem persists?

At the moment there is no possibility check.

Is it a Realtek NIC?

No, Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet

 

[kotakomputer]

Now ping fine, but work in rdp has many freeze

RDP very depend on 3 factors: RAM dan CPU load inside VPS, and internet speed at least 384 Kbps for WXGA resolution.

 

[screenie]

how is your network connectivity on the node itself?
have you checked your /etc/network/interfaces file if there is something wrong?
miitool?

 

[spirit]

seems to be yes, problem is randomed. Now ping fine, but work in rdp has many freeze. Partially help change network speed in setting


Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet


Now tested on other KVM host and have this problem on all KVM host.


At the moment there is no possibility check.


At the moment there is no possibility check.


No, Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet

can you try on the host:

#ethtool --offload vmbr0 gso off tso off sg off gro off lro off
#ethtool --offload eth0 gso off tso off sg off gro off lro off

 

[beliy]

me help change bonding mode from balance-rr(mode 0) to balance-alb (mode 6) and add

bridge_stp on
bridge_maxwait 0
bridge_maxage 0
bridge_fd 0
bridge_ageing 0

in the bridge setting

Details - http://forum.proxmox.com/threads/2676-bonding-bridging-freez

Many thanks all!