MPLS в virtio-net

[ne-vlezay80]

Короче, наигрался я с MPLS в veth и решил попробывать его на KVM. Самое интересное то, что когда я запустил MPLS на одной машине как P, а на другой как PE создал два namespace. Вот тест без GSO:

root@containers:~# rmmod mpls_gso
root@containers:~# iperf3 -c 10.194.10.2 -B 10.194.10.1
Connecting to host 10.194.10.2, port 5201
[  4] local 10.194.10.1 port 46253 connected to 10.194.10.2 port 5201
[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd
[  4]   0.00-1.00   sec  1.25 MBytes  10.5 Mbits/sec  226   7.59 KBytes       
[  4]   1.00-2.00   sec  1.88 MBytes  15.7 Mbits/sec  366   7.59 KBytes       
[  4]   2.00-3.00   sec  1.87 MBytes  15.7 Mbits/sec  368   7.59 KBytes       
[  4]   3.00-4.00   sec  1.87 MBytes  15.7 Mbits/sec  372   7.59 KBytes       
[  4]   4.00-5.00   sec  1.88 MBytes  15.7 Mbits/sec  364   7.59 KBytes       
[  4]   5.00-6.00   sec  1.87 MBytes  15.7 Mbits/sec  368   7.59 KBytes       
[  4]   6.00-7.00   sec  1.87 MBytes  15.7 Mbits/sec  364   7.59 KBytes       
[  4]   7.00-8.00   sec  1.86 MBytes  15.6 Mbits/sec  364   7.59 KBytes       
[  4]   8.00-9.00   sec  1.87 MBytes  15.7 Mbits/sec  368   7.59 KBytes       
[  4]   9.00-10.00  sec  1.86 MBytes  15.6 Mbits/sec  364   7.59 KBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth       Retr
[  4]   0.00-10.00  sec  18.1 MBytes  15.2 Mbits/sec  3524             sender
[  4]   0.00-10.00  sec  18.0 MBytes  15.1 Mbits/sec                  receiver
iperf Done.

Вот тест с MPLS_GSO:

root@containers:~# iperf3 -c 10.194.10.2 -B 10.194.10.1
Connecting to host 10.194.10.2, port 5201
[  4] local 10.194.10.1 port 43973 connected to 10.194.10.2 port 5201
[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd
[  4]   0.00-1.00   sec   233 MBytes  1.95 Gbits/sec   52    942 KBytes       
[  4]   1.00-2.00   sec   224 MBytes  1.89 Gbits/sec  137    890 KBytes       
[  4]   2.00-3.00   sec   223 MBytes  1.87 Gbits/sec  243   1.23 MBytes       
[  4]   3.00-4.00   sec   225 MBytes  1.89 Gbits/sec  956   1.05 MBytes       
[  4]   4.00-5.00   sec   236 MBytes  1.98 Gbits/sec  170    809 KBytes       
[  4]   5.00-6.00   sec   241 MBytes  2.02 Gbits/sec   18    938 KBytes       
[  4]   6.00-7.00   sec   230 MBytes  1.92 Gbits/sec  299    904 KBytes       
[  4]   7.00-8.00   sec   222 MBytes  1.86 Gbits/sec  207    691 KBytes       
[  4]   8.00-9.00   sec   246 MBytes  2.06 Gbits/sec    1    921 KBytes       
[  4]   9.00-10.00  sec   251 MBytes  2.10 Gbits/sec    8   1.02 MBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth       Retr
[  4]   0.00-10.00  sec  2.28 GBytes  1.95 Gbits/sec  2091             sender
[  4]   0.00-10.00  sec  2.27 GBytes  1.95 Gbits/sec                  receiver

iperf Done.

Чистая маршрутизация без MPLS:

root@containers:~# iperf3 -c 10.194.10.4 -B 10.194.10.3
Connecting to host 10.194.10.4, port 5201
[  4] local 10.194.10.3 port 53227 connected to 10.194.10.4 port 5201
[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd
[  4]   0.00-1.00   sec   219 MBytes  1.83 Gbits/sec  1634   1.88 MBytes       
[  4]   1.00-2.00   sec   218 MBytes  1.83 Gbits/sec  2079   1.13 MBytes       
[  4]   2.00-3.00   sec   246 MBytes  2.06 Gbits/sec  326   1.45 MBytes       
[  4]   3.00-4.00   sec   242 MBytes  2.03 Gbits/sec  458   1004 KBytes       
[  4]   4.00-5.00   sec   237 MBytes  1.99 Gbits/sec   29    949 KBytes       
[  4]   5.00-6.00   sec   256 MBytes  2.15 Gbits/sec   49   1.34 MBytes       
[  4]   6.00-7.00   sec   246 MBytes  2.06 Gbits/sec  126    856 KBytes       
[  4]   7.00-8.01   sec   244 MBytes  2.03 Gbits/sec  268   1.26 MBytes       
[  4]   8.01-9.00   sec   244 MBytes  2.06 Gbits/sec  312   1.55 MBytes       
[  4]   9.00-10.00  sec   242 MBytes  2.03 Gbits/sec  565   1.77 MBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth       Retr
[  4]   0.00-10.00  sec  2.34 GBytes  2.01 Gbits/sec  5846             sender
[  4]   0.00-10.00  sec  2.34 GBytes  2.01 Gbits/sec                  receiver

iperf Done.

Самое интерестное то, что маршрутизация работает быстрее чем MPLS.

Интерестно, поддерживает ли MPLS qemu-kvm или нет.