Docker Network Host vs Bridge
Feature | Host Network | Bridge Network |
---|---|---|
Network Namespace | Shares network namespace with Docker host | Each container has its own network namespace |
IP Addressing | Uses host’s IP address(es) | Containers have unique IP addresses within bridge network |
Network Performance | Higher, as there’s no overhead from NAT or routing through a bridge | Slightly lower due to NAT and routing through bridge |
Port Conflicts | Possible if multiple containers bind to the same port | Avoided, each container has its own isolated network stack |
Use Cases | Applications requiring high network performance, or need direct access to host’s network interfaces | Most common choice for running multiple containers on a single host, offers network isolation and avoids port conflicts |
Default | Not the default, must be explicitly specified | Default network mode in Docker |
What Is Docker Network Host ?
With removing Docker’s network virtualization expenses, the “host” network mode of Docker enables containers to share the Docker host’s network stack directly, simplifying networking. Without the need for explicit port mapping, this choice improves performance and allows smooth access to host services. MetricFire offers accurate network traffic, latency, and connectivity monitoring solutions for Docker networks. MetricFire enables users to monitor performance indicators, troubleshoot problems, and guarantee the reliability of containerized applications. Arrange an experiment with MetricFire to gain firsthand knowledge with efficient Docker network monitoring.