Ifconfig shows only 1 out 3 SCAN ips

Version: 11gR2
Platform : AIX
We have configured SCAN to resolve to 3 IPs in the DNS as per the oracle Doc. SCAN is working fine. I used nslookup several times to verify round robin . It is fine.
The SCAN IPs are
$ srvctl config scan
SCAN name: scan-manh.galaxy.net, Network: 1/10.80.23.0/255.255.255.0/en11
SCAN VIP name: scan1, IP: /scan-manh.galaxy.net/10.80.23.54
SCAN VIP name: scan2, IP: /scan-manh.galaxy.net/10.80.23.52
SCAN VIP name: scan3, IP: /scan-manh.galaxy.net/10.80.23.53Public IP of the server (Node1)
$ host lshmprd49
lshmprd49.galaxy.net is 10.80.23.49,  Aliases:  lshmprd49
$ nslookup scan-manh.galaxy.net
Server:         172.203.215.65
Address:        172.203.215.65#53
Non-authoritative answer:
Name:   scan-manh.galaxy.net
Address: 10.80.23.53
Name:   scan-manh.galaxy.net
Address: 10.80.23.54
Name:   scan-manh.galaxy.net
Address: 10.80.23.52But when i check the ifconfig output to see if the 3 IPs are plumbed to the public interface. It is showing only 1 out of 3 IPs registered for SCAN. Is this as expected? When i checked node2, it was displaying 2 of the 3 IPs of SCAN in the public interface.
Public interface (en11) details from ifconfig output
$ ifconfig -a
en11: flags=5e080863,c0<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,CHECKSUM_OFFLOAD(ACTIVE),PSEG,LARGESEND,CHAIN>
        inet 10.80.23.49 netmask 0xffffff00 broadcast 10.80.23.255  # -----------> This is the public IP
        inet 10.80.23.50 netmask 0xffffff00 broadcast 10.80.23.255  # -----------> This is VIP
        inet 10.80.23.54 netmask 0xffffff00 broadcast 10.80.23.255  # -----------> only 1 IP from SCAN ?
         tcp_sendspace 131072 tcp_recvspace 65536 rfc1323 0

For HA and load balance purposes SCAN IPs can be distributed b/w nodes. So, it is valid expected behavior. As SCAN can have maximum of three scan IPs, so for three or more nodes cluster maximum of three nodes will have SCAN IPs running.
887522.1, has details that it will run on three nodes.
Thanks,
Rohit Chandok
http://www.rohitchandok.com

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