docs: update mirror feature to readme

README.md

@@ -16,6 +16,7 @@ Kube-OVN integrates the OVN-based Network Virtualization with Kubernetes. It off
 - **Distributed Gateways**: Every Node can act as a Gateway to provide external network connectivity.
 - **Namespaced Gateways**: Every Namespace can have a dedicated Gateway for Egress traffic.
 - **Direct External Connectivity**：Pod IP can be exposed to external network directly.
+- **Traffic Mirror**: Duplicated container network traffic for monitoring and diagnosing.
 
 ## Planned Future Work
 - Hardware Offloading and DPDK Support
@@ -38,6 +39,7 @@ Kube-OVN is easy to install with all necessary components/dependencies included.
 - [Static IP](docs/static-ip.md)
 - [Dynamic QoS](docs/qos.md)
 - [Gateway and Direct connect](docs/gateway.md)
+- [Traffic Mirror](docs/mirror.md)
 
 ## Contact
 Mail: mengxin#alauda.io

docs/mirror.md

@@ -8,7 +8,7 @@ Kube-OVN support traffic mirroring that duplicates pod nic send/receive network
 
 Traffic mirror is disabled by default, you should add cmd args in cni-server when installing kube-ovn to enabled it.
 - `--enable-mirror=true`: enable traffic mirror
-- `--mirror-iface=mirror0`: kube-ovn will create an ovs internal port on every node to mirror pod traffic on that node. If not set will use mirror0 as the default port name
+- `--mirror-iface=mirror0`: kube-ovn will create an ovs internal port on every node to mirror pods traffic on that node. If not set will use mirror0 as the default port name
 
 Then you can use tcpdump or other tools to diagnose traffic from interface mirror0: