the issue we were having was due to faulty vlan configuration , not kvm or pve .
Hello
we have a network issue that may be a kvm issue.
on 3 pve systems, ping within a kvm looses packets.
on openvz, pve hosts and regular hardware the same ping tests does not loose any packets.
has anyone else seen this?
We recently started using vlan on a layer 3 switch. routing between clans is done on that switch. we could be doing something wrong on with vlan tagging..
The pve hosts and openvz's do not use a vmbr . The kvm's do.
here is an example test result:
Hello
we have a network issue that may be a kvm issue.
on 3 pve systems, ping within a kvm looses packets.
on openvz, pve hosts and regular hardware the same ping tests does not loose any packets.
has anyone else seen this?
Code:
fbc241 ~ # pveversion -v
pve-manager: 2.3-13 (pve-manager/2.3/7946f1f1)
running kernel: 2.6.32-19-pve
proxmox-ve-2.6.32: 2.3-93
pve-kernel-2.6.32-17-pve: 2.6.32-83
pve-kernel-2.6.32-19-pve: 2.6.32-93
pve-kernel-2.6.32-18-pve: 2.6.32-88
lvm2: 2.02.95-1pve2
clvm: 2.02.95-1pve2
corosync-pve: 1.4.4-4
openais-pve: 1.1.4-2
libqb: 0.10.1-2
redhat-cluster-pve: 3.1.93-2
resource-agents-pve: 3.9.2-3
fence-agents-pve: 3.1.9-1
pve-cluster: 1.0-36
qemu-server: 2.3-18
pve-firmware: 1.0-21
libpve-common-perl: 1.0-49
libpve-access-control: 1.0-26
libpve-storage-perl: 2.3-6
vncterm: 1.0-3
vzctl: 4.0-1pve2
vzprocps: 2.0.11-2
vzquota: 3.1-1
pve-qemu-kvm: 1.4-8
ksm-control-daemon: 1.1-1We recently started using vlan on a layer 3 switch. routing between clans is done on that switch. we could be doing something wrong on with vlan tagging..
The pve hosts and openvz's do not use a vmbr . The kvm's do.
here is an example test result:
Code:
~ # ping -c 10 10.1.10.1
PING 10.1.10.1 (10.1.10.1) 56(84) bytes of data.
64 bytes from 10.1.10.1: icmp_req=1 ttl=64 time=171 ms
64 bytes from 10.1.10.1: icmp_req=2 ttl=64 time=108 ms
64 bytes from 10.1.10.1: icmp_req=3 ttl=64 time=183 ms
64 bytes from 10.1.10.1: icmp_req=4 ttl=64 time=112 ms
64 bytes from 10.1.10.1: icmp_req=5 ttl=64 time=187 ms
64 bytes from 10.1.10.1: icmp_req=6 ttl=64 time=92.5 ms
64 bytes from 10.1.10.1: icmp_req=7 ttl=64 time=191 ms
64 bytes from 10.1.10.1: icmp_req=8 ttl=64 time=148 ms
--- 10.1.10.1 ping statistics ---
10 packets transmitted, 8 received, 20% packet loss, time 9019ms
rtt min/avg/max/mdev = 92.543/149.645/191.666/37.447 ms
www ~ # ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 52:46:4b:4a:be:2a brd ff:ff:ff:ff:ff:ff
inet 10.1.10.50/24 brd 10.1.10.255 scope global eth0
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