Remote listener RAC

Dear support,

We are using 2 node RAC- DB version 19.17

CDB with single PDB

uatcdb is CDB

UATDB is PDB

Our remote listener parameter is set to a tns alias and we are able to see them in v$listener_network

We have 3 scan listeners running,one on node 1 and 2 on node2

Node1

[griduat@erpuatdb1 ~]$ srvctl config scan_listener

SCAN Listeners for network 1:
Registration invited nodes:
Registration invited subnets:
Endpoints: TCP:1528
SCAN Listener LISTENER_SCAN1 exists
SCAN Listener is enabled.
SCAN Listener LISTENER_SCAN2 exists
SCAN Listener is enabled.
SCAN Listener LISTENER_SCAN3 exists
SCAN Listener is enabled.
In tnsnames.ora


UATDB_REMOTE=
        (DESCRIPTION=
            (ADDRESS_LIST=
                (ADDRESS=(PROTOCOL=tcp)(HOST=*******.207)(PORT=1528))
                (ADDRESS=(PROTOCOL=tcp)(HOST=*******.208)(PORT=1528))
                (ADDRESS=(PROTOCOL=tcp)(HOST=*******.209)(PORT=1528))
            )
        )




[orauat@erpuatdb1 19chome]$ sqlplus "/as sysdba"
SQL*Plus: Release 19.0.0.0.0 - Production on Fri Mar 17 09:03:34 2023
Version 19.17.0.0.0
Copyright (c) 1982, 2022, Oracle.  All rights reserved.
Connected to:
Oracle Database 19c Enterprise Edition