[Svc]linux bridge&docker0&k8s pod network model Popular Romance

Linux Namespace&bridge Popular Romance Linux interface type

BR0 eth0: an interface
Veth: A pair of interfaces, similar to a network cable, one end has an address, the other end connected to another,

Linux 2 namespace connectivity

The different namespace are isolated. Want them to pass, need to use network cable to connect up (veth type mouth, one to ns1, the other end to NS2)

Linux 3 Namespace connectivity

2 NS Even universal Veth say, 3 NS Even the general Veth looks troublesome. with Br0

Same host, communication between different BR

BR Communication between different hosts

1,开启转发2,开启iptables forward链. echo 1 > /proc/sys/net/ipv4/ip_forwardiptables -P FORWARD ACCEPT

Docker0 Default Bridge Forwarding posture

One namespace per container
Reference: http://blog.daocloud.io/docker-bridge/

Kubernetes Network Fundamentals

One namespace per pod

Inter-container communication

Pod communication between the same host

Inter-host pod communication

[Svc]linux bridge&docker0&k8s pod network model Popular Romance