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Using as comment field
You should have just one tunnel between Network && Compute

[root@hacontroller1 ~(keystone_admin)]# ovs-vsctl show
7edb36a3-a9d5-4305-963e-24d1bee714cb
    Bridge "br-eth0"
        Port "phy-br-eth0"
            Interface "phy-br-eth0"
                type: patch
                options: {peer="int-br-eth0"}
        Port "eth0"
            Interface "eth0"
        Port "br-eth0"
            Interface "br-eth0"
                type: internal
    Bridge br-tun
        fail_mode: secure
        Port "vxlan-c0a98ede"
            Interface "vxlan-c0a98ede"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="192.169.142.221", out_key=flow, remote_ip="192.169.142.222"}
        Port "vxlan-c0a98edf"
            Interface "vxlan-c0a98edf"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="192.169.142.221", out_key=flow, remote_ip="192.169.142.223"}
        Port br-tun
            Interface br-tun
                type: internal
        Port "vxlan-c0a98ee0"
            Interface "vxlan-c0a98ee0"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="192.169.142.221", out_key=flow, remote_ip="192.169.142.224"}
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
    Bridge br-int
        fail_mode: secure
        Port br-int
            Interface br-int
                type: internal
        Port "tapc8488877-45"
            tag: 4
            Interface "tapc8488877-45"
                type: internal
        Port "tap14aa6eeb-70"
            tag: 3
            Interface "tap14aa6eeb-70"
                type: internal
        Port "ha-4b54e64e-61"
            tag: 1
            Interface "ha-4b54e64e-61"
                type: internal
        Port "qg-34893aa0-17"
            tag: 2
            Interface "qg-34893aa0-17"
                type: internal
        Port "int-br-eth0"
            Interface "int-br-eth0"
                type: patch
                options: {peer="phy-br-eth0"}
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "qr-8f5b3f4a-45"
            tag: 3
            Interface "qr-8f5b3f4a-45"
                type: internal
    ovs_version: "2.4.0"

Using as comment field
You should have just one tunnel between Network && Compute

[root@hacontroller1 ~(keystone_admin)]# ovs-vsctl show
7edb36a3-a9d5-4305-963e-24d1bee714cb
    Bridge "br-eth0"
        Port "phy-br-eth0"
            Interface "phy-br-eth0"
                type: patch
                options: {peer="int-br-eth0"}
        Port "eth0"
            Interface "eth0"
        Port "br-eth0"
            Interface "br-eth0"
                type: internal
    Bridge br-tun
        fail_mode: secure
        Port "vxlan-c0a98ede"
            Interface "vxlan-c0a98ede"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="192.169.142.221", out_key=flow, remote_ip="192.169.142.222"}
        Port "vxlan-c0a98edf"
            Interface "vxlan-c0a98edf"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="192.169.142.221", out_key=flow, remote_ip="192.169.142.223"}
        Port br-tun
            Interface br-tun
                type: internal
        Port "vxlan-c0a98ee0"
            Interface "vxlan-c0a98ee0"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="192.169.142.221", out_key=flow, remote_ip="192.169.142.224"}
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
    Bridge br-int
        fail_mode: secure
        Port br-int
            Interface br-int
                type: internal
        Port "tapc8488877-45"
            tag: 4
            Interface "tapc8488877-45"
                type: internal
        Port "tap14aa6eeb-70"
            tag: 3
            Interface "tap14aa6eeb-70"
                type: internal
        Port "ha-4b54e64e-61"
            tag: 1
            Interface "ha-4b54e64e-61"
                type: internal
        Port "qg-34893aa0-17"
            tag: 2
            Interface "qg-34893aa0-17"
                type: internal
        Port "int-br-eth0"
            Interface "int-br-eth0"
                type: patch
                options: {peer="phy-br-eth0"}
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "qr-8f5b3f4a-45"
            tag: 3
            Interface "qr-8f5b3f4a-45"
                type: internal
    ovs_version: "2.4.0"

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