xumamen/ceos repository overview

⁠create ceos container:

sudo docker create --name=$1 --network=docker_mgmt --ip=$2 --privileged -e INTFTYPE=eth -e ETBA=4 -e SKIP_ZEROTOUCH_BARRIER_IN_SYSDBINIT=1 -e CEOS=1 -e EOS_PLATFORM=ceoslab -e container=docker -i -t ceos:default /sbin/init systemd.setenv=INTFTYPE=eth systemd.setenv=ETBA=4 systemd.setenv=SKIP_ZEROTOUCH_BARRIER_IN_SYSDBINIT=1 systemd.setenv=CEOS=1 systemd.setenv=EOS_PLATFORM=ceoslab systemd.setenv=container=docker systemd.setenv=MAPETH0=1 systemd.setenv=MGMT_INTF=eth0

(create docker network docker_mgmt before doing this, driver macvlan for external access)

⁠limitations:

• ospf/isis may not work as linux interface naming "ethxxx" instead of "etxxx"
• subinterface may not work on linux(works on macos)
• use port-channel as a wrapper will be a workaround
• for veth link, after attaching the interface into the namespace, cli cmd "agent Fru terminate" to make those links being shown in EOS.

⁠ create pc container

(create docker network docker_mgmt before doing this, driver macvlan for external access)

⁠ start the containers

⁠ create topology using veth on linux

veth_namespace r101
veth_namespace r102
ip link add veth101 type veth peer veth102
ip link set dev veth101 netns r101
ip link set dev veth102 netns r102
ip netns exec r101 ip link set dev veth101 name eth1
ip netns exec r102 ip link set dev veth102 name eth1
ip netns exec r101 ip link set dev eth1 up
ip netns exec r102 ip link set dev eth1 up
veth_namespace r101
veth_namespace u1
ip link add veth103 type veth peer veth104
ip link set dev veth103 netns r101
ip link set dev veth104 netns u1
ip netns exec r101 ip link set dev veth103 name eth2
ip netns exec u1 ip link set dev veth104 name eth2
ip netns exec r101 ip link set dev eth2 up
ip netns exec u1 ip link set dev eth2 up
veth_namespace(){
for instance in $@; do
pid=docker-pid $instance 2>/dev/null
if [ $? -eq 0 ] && [ $pid -gt 0 ]; then
echo $instance $pid
ln -sfT /proc/$pid/ns/net /var/run/netns/$instance
fi
done
}