The OVS bridge mappings may be viewed in the NodeNetworkState for a node
$ oc get nns hub-4k77l-cnv-jxdwv -o json | jq '.status.currentState.ovn."bridge-mappings"'
[
{
"bridge": "br-ex",
"localnet": "physnet"
},
{
"bridge": "br-vmdata",
"localnet": "physnet-vmdata"
}
]The same can be learned by logging into the OVN controller
# connect to OVN Northbound DB https://gist.github.com/dlbewley/b4d4c85931e7a9c03caf56db1a1a0d2e
$ ovncli.sh
# find local chassis id
sh-5.1# CHASSIS=`ovn-sbctl --bare --columns=name find chassis other_config:is-remote="false"`
sh-5.1# echo $CHASSIS
f57f0c4e-5d93-4639-a016-7cea61281c04
# view bridge mappings for local chassis
sh-5.1# ovn-sbctl get chassis $CHASSIS other_config:ovn-bridge-mappings
"physnet-vmdata:br-vmdata,physnet:br-ex"Alternativly ssh to the node and view 'external_ids' (thanks chrisj)
$ ssh hub-tq2sk-cnv-k9wjv
$ sudo -i
[root@hub-tq2sk-cnv-k9wjv ~]# ovs-vsctl list open .
_uuid : 9ba7b144-6826-4070-8173-a5d721290de0
bridges : [0193bdfe-034a-4ee8-8992-8ed31ef363e3, 1c598241-0af1-4ddb-92fd-82f0bcae5ca8, a6b576b3-c71d-42eb-870d-d36dc7135694]
cur_cfg : 366
datapath_types : [netdev, system]
datapaths : {system=ad4062aa-40e9-4751-af8e-bd6b77c69af1}
db_version : "8.3.1"
dpdk_initialized : false
dpdk_version : "DPDK 22.11.4"
external_ids : {hostname=hub-tq2sk-cnv-k9wjv, ovn-bridge-mappings="physnet:br-ex,vlan-1924:br-vmdata,vlan-1926:br-vmdata", ovn-enable-lflow-cache="true", ovn-encap-ip="192.168.4.62", ovn-encap-type=geneve, ovn-is-interconn="true", ovn-memlimit-lflow-cache-kb="1048576", ovn-monitor-all="true", ovn-ofctrl-wait-before-clear="0", ovn-openflow-probe-interval="180", ovn-remote="unix:/var/run/ovn/ovnsb_db.sock", ovn-remote-probe-interval="180000", rundir="/var/run/openvswitch", system-id="df818bf3-c8a5-4007-ac5e-1fa0efaac0ed"}
iface_types : [bareudp, erspan, geneve, gre, gtpu, internal, ip6erspan, ip6gre, lisp, patch, stt, system, tap, vxlan]
manager_options : []
next_cfg : 366
other_config : {bundle-idle-timeout="180", ovn-chassis-idx-df818bf3-c8a5-4007-ac5e-1fa0efaac0ed="", vlan-limit="0"}
ovs_version : "3.1.5"
ssl : []
statistics : {}
system_type : rhcos
system_version : "4.15"
ovncli.sh is here https://gist.github.com/dlbewley/b4d4c85931e7a9c03caf56db1a1a0d2e