Syncrep size limit exceeded

Hi,

After configuring Openldap -2.4.23 Multi-master Syncrep with TLS. Replication never completes, log shows

slapd[13578]: do_syncrep2: rid=003 (4) Size limit exceeded.

This is slapd.conf

syncrepl rid=002 provider=ldap://xxx.xxx.xxx tls_cert=/etc/pki/tls/certs/ldapcert.pem tls_key=/etc/pki/tls/private/ldapkey.pem tls_cacert=/etc/pki/tls/certs/ldapcert.pem tls_reqcert=demand searchbase="dc=establishment,dc=edu" schemachecking=on timelimit=unlimited sizelimit=unlimited type=refreshAndPersist retry="60 +"

Thanks,