Public bug reported:
I use qemu-kvm in openstak. On highload hypervisor tap interface of
net-highload gues drops many TX packages.
Network options of qemu-system-x86_64 "... -netdev
tap,fd=30,id=hostnet0,vhost=on,vhostfd=31 -device
virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:86:67:7b,bus=pci.0,addr=0x3..."
Network domin config:
<interface type='bridge'>
<mac address='fa:16:3e:86:67:7b'/>
<source bridge='qbre4009073-0b'/>
<target dev='tape4009073-0b'/>
<model type='virtio'/>
<alias name='net0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
</interface>
tape4009073-0b Link encap:Ethernet HWaddr fe:16:3e:86:67:7b
inet6 addr: fe80::fc16:3eff:fe86:677b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1587622634 errors:0 dropped:0 overruns:0 frame:0
TX packets:1484106438 errors:0 dropped:460259 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:877878711500 (877.8 GB) TX bytes:3071846828531 (3.0 TB)
** Affects: qemu-kvm (Ubuntu)
Importance: Undecided
Status: New
** Summary changed:
- tap interface drors may packages on highload sysstems
+ tap interface drops many packages on highload systems
** Summary changed:
- tap interface drops many packages on highload systems
+ tap interface drops many packets on highload systems
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https://bugs.launchpad.net/bugs/1423631
Title:
tap interface drops many packets on highload systems
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