Red Hat build of MicroShift

Getting a snapshot of OVS interfaces from a running node

To capture the current state of OVS interface and data from a running MicroShift node, you can run sudo ovs-vsctl show on the node.

Procedure

To see a snapshot of OVS interfaces from a running MicroShift node, enter the following command:

$ sudo ovs-vsctl show

Example OVS interfaces in a running node

9d9f5ea2-9d9d-4e34-bbd2-dbac154fdc93
    Bridge br-ex
        Port br-ex
            Interface br-ex
                type: internal
        Port patch-br-ex_localhost.localdomain-to-br-int
            Interface patch-br-ex_localhost.localdomain-to-br-int
                type: patch
                options: {peer=patch-br-int-to-br-ex_localhost.localdomain}
    Bridge br-int
        fail_mode: secure
        datapath_type: system
        Port patch-br-int-to-br-ex_localhost.localdomain
            Interface patch-br-int-to-br-ex_localhost.localdomain
                type: patch
                options: {peer=patch-br-ex_localhost.localdomain-to-br-int}
        Port eebee1ce5568761
            Interface eebee1ce5568761
        Port b47b1995ada84f4
            Interface b47b1995ada84f4
        Port "3031f43d67c167f"
            Interface "3031f43d67c167f"
        Port br-int
            Interface br-int
                type: internal
        Port ovn-k8s-mp0
            Interface ovn-k8s-mp0
                type: internal
    ovs_version: "2.17.3"

where:

patch-br-ex_localhost.localdomain-to-br-int: Specifies OVS patch ports that connects br-int.
patch-br-int-to-br-ex_localhost.localdomain: Specifies OVS patch ports that connects br-ex.
eebee1ce5568761: Specifies the pod interface named with the first 15 bits of the pod sandbox ID and is plugged into the br-int bridge.
b47b1995ada84f4: Specifies the pod interface named with the first 15 bits of the pod sandbox ID and is plugged into the br-int bridge.
3031f43d67c167f: Specifies the pod interface named with the first 15 bits of the pod sandbox ID and is plugged into the br-int bridge.
ovn-k8s-mp0: Specifies OVS internal port for hairpin traffic,ovn-k8s-mp0 is created by the ovnkube-master container.