lab topology

pc -- deltaos -- pc2

deltaos
    ge0: 10.4.1.1
    ge1: 10.4.2.1

pc1
    eth0: 10.4.1.41

pc2
    eth0: 10.4.2.42

pc1, pc2, deltaos are virtual machines, pc1, pc2 running rocky linux 8. all these vms

running on a little box aoostar gem12.

lab configuration

run deltaos using qemu

qemu-system-x86_64 -enable-kvm -M pc -m 512m \
    -drive file=deltaos.0.6.qcow2c,if=virtio,cache=none,format=qcow2 \
    -serial mon:stdio \
    -device virtio-net,netdev=nic0,mac=52:54:01:02:03:01 \
    -netdev tap,id=nic0,br=net1,vhost=on \
    -device virtio-net,netdev=nic1,mac=52:54:01:02:03:02 \
    -netdev tap,id=nic1,br=net2,vhost=on

deltaos basic config

# show running-config

# DELTAOS CONFIG VERSION: 0

interface ge 1
  ip address 10.4.1.1 255.255.255.0
  no shutdown

interface ge 2
  ip address 10.4.2.1 255.255.255.0
  no shutdown

line console

line serial

line vty
  no login
  transport input none

end
# show ip route
Codes: L - local, C - connected, S - static, B - BGP

L        10.4.1.1/32 is directly connected, ge1
C        10.4.1.0/0 is directly connected, ge1
L        10.4.2.1/32 is directly connected, ge2
C        10.4.2.0/0 is directly connected, ge2

pc1 route

$ ip route add 10.4.2.0/24 via 10.4.1.1

pc2 route

$ ip route add 10.4.1.0/24 via 10.4.2.1

iPerf result

pc1

$ iperf3 -s

pc2

$ iperf3 -c 10.4.1.41
Connecting to host 10.11.1.41, port 5201
[  5] local 10.11.2.42 port 39896 connected to 10.11.1.41 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  1.07 GBytes  9.22 Gbits/sec  1098    168 KBytes
[  5]   1.00-2.00   sec  1.05 GBytes  9.06 Gbits/sec  873    133 KBytes
[  5]   2.00-3.00   sec  1.03 GBytes  8.86 Gbits/sec  1078    178 KBytes
[  5]   3.00-4.00   sec  1.06 GBytes  9.12 Gbits/sec  778    177 KBytes
[  5]   4.00-5.00   sec  1.08 GBytes  9.26 Gbits/sec  1027    156 KBytes
[  5]   5.00-6.00   sec  1.08 GBytes  9.26 Gbits/sec  498    253 KBytes
[  5]   6.00-7.00   sec  1.07 GBytes  9.21 Gbits/sec  712    148 KBytes
[  5]   7.00-8.00   sec  1.03 GBytes  8.87 Gbits/sec  1061    133 KBytes
[  5]   8.00-9.00   sec  1.05 GBytes  9.01 Gbits/sec  971    139 KBytes
[  5]   9.00-10.00  sec  1.04 GBytes  8.92 Gbits/sec  675    151 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec  10.6 GBytes  9.08 Gbits/sec  8771             sender
[  5]   0.00-10.04  sec  10.6 GBytes  9.04 Gbits/sec                  receiver

iperf Done.