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The following is the three node setup output of ovs-vctl show from network node.

# ovs-vsctl show
7931cb94-39a2-4c69-b69a-c91ccb0dff22
    Bridge br-ex
        Port br-ex
            Interface br-ex
                type: internal
        Port "ens32"
            Interface "ens32"
        Port "qg-8d4b9d02-e5"
            Interface "qg-8d4b9d02-e5"
                type: internal
    Bridge br-tun
        fail_mode: secure
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port "vxlan-c0a8ae15"
            Interface "vxlan-c0a8ae15"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="192.168.174.27", out_key=flow, remote_ip="192.168.174.21"}
        Port "vxlan-c0a8ae14"
            Interface "vxlan-c0a8ae14"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="192.168.174.27", out_key=flow, remote_ip="192.168.174.20"}
        Port br-tun
            Interface br-tun
                type: internal
    Bridge br-int
        fail_mode: secure
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "qr-acae577c-85"
            Interface "qr-acae577c-85"
                type: internal
        Port "tap7d97dae0-ac"
            Interface "tap7d97dae0-ac"
                type: internal
        Port br-int
            Interface br-int
                type: internal
    ovs_version: "2.4.0"

# ip netns
qrouter-832cf14e-515c-4daf-a656-4814c093b759
qdhcp-c24305c7-bc69-4078-bc7f-bf2c40f1baad

The following is the three node setup output of ovs-vctl show from network node.

# ovs-vsctl show
7931cb94-39a2-4c69-b69a-c91ccb0dff22
    Bridge br-ex
        Port br-ex
            Interface br-ex
                type: internal
        Port "ens32"
            Interface "ens32"
        Port "qg-8d4b9d02-e5"
            Interface "qg-8d4b9d02-e5"
                type: internal
    Bridge br-tun
        fail_mode: secure
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port "vxlan-c0a8ae15"
            Interface "vxlan-c0a8ae15"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="192.168.174.27", out_key=flow, remote_ip="192.168.174.21"}
        Port "vxlan-c0a8ae14"
            Interface "vxlan-c0a8ae14"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="192.168.174.27", out_key=flow, remote_ip="192.168.174.20"}
        Port br-tun
            Interface br-tun
                type: internal
    Bridge br-int
        fail_mode: secure
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "qr-acae577c-85"
            Interface "qr-acae577c-85"
                type: internal
        Port "tap7d97dae0-ac"
            Interface "tap7d97dae0-ac"
                type: internal
        Port br-int
            Interface br-int
                type: internal
    ovs_version: "2.4.0"

# ip netns
qrouter-832cf14e-515c-4daf-a656-4814c093b759
qdhcp-c24305c7-bc69-4078-bc7f-bf2c40f1baad

Added freshly installed single node

# ovs-vsctl show
5e6491bb-1fbd-4609-a1d5-8127e3b7cef8
    Bridge br-ex
        Port br-ex
            Interface br-ex
                type: internal
        Port "ens32"
            Interface "ens32"
    Bridge br-tun
        fail_mode: secure
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port br-tun
            Interface br-tun
                type: internal
    Bridge br-int
        fail_mode: secure
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port br-int
            Interface br-int
                type: internal
    ovs_version: "2.3.1"

The following is the three node setup output of ovs-vctl show from network node.Hi Boris,

# ovs-vsctl show
7931cb94-39a2-4c69-b69a-c91ccb0dff22
    Bridge br-ex
        Port br-ex
            Interface br-ex
                type: internal
        Port "ens32"
            Interface "ens32"
        Port "qg-8d4b9d02-e5"
            Interface "qg-8d4b9d02-e5"
                type: internal
    Bridge br-tun
        fail_mode: secure
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port "vxlan-c0a8ae15"
            Interface "vxlan-c0a8ae15"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="192.168.174.27", out_key=flow, remote_ip="192.168.174.21"}
        Port "vxlan-c0a8ae14"
            Interface "vxlan-c0a8ae14"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="192.168.174.27", out_key=flow, remote_ip="192.168.174.20"}
        Port br-tun
            Interface br-tun
                type: internal
    Bridge br-int
        fail_mode: secure
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "qr-acae577c-85"
            Interface "qr-acae577c-85"
                type: internal
        Port "tap7d97dae0-ac"
            Interface "tap7d97dae0-ac"
                type: internal
        Port br-int
            Interface br-int
                type: internal
    ovs_version: "2.4.0"

Thank you for all your help. # ip netns qrouter-832cf14e-515c-4daf-a656-4814c093b759 qdhcp-c24305c7-bc69-4078-bc7f-bf2c40f1baad

I able to figure out the issue. In the vSwitch of the ESXi I had made no to promiscuous which now changed to yes and able to access the hosted instances.

Added freshly installed single node Thank you once again for all your support and help. God Bless you.

# ovs-vsctl show
5e6491bb-1fbd-4609-a1d5-8127e3b7cef8
    Bridge br-ex
        Port br-ex
            Interface br-ex
                type: internal
        Port "ens32"
            Interface "ens32"
    Bridge br-tun
        fail_mode: secure
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port br-tun
            Interface br-tun
                type: internal
    Bridge br-int
        fail_mode: secure
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port br-int
            Interface br-int
                type: internal
    ovs_version: "2.3.1"

Regards, Amar