PCP failover takes approx 30 mintues

I have setup PCP on a 2 node shared 12.1.3 application tiers which points to a 2 node 11.2.0.2 RAC cluster.  When my secondary node looses network connection it takes approx 30 mintues for the managers to rollover to the primary node?  The OAM Generic Collection Service:Node1 and Service Manager: Node2 do not rollover.  Are they supposed to?

My sqlnet.ora on my RAC nodes has the following values set:

sqlnet.expire_time = 10

SQLNET.INBOUND_CONNECT_TIMEOUT=120
tcp_retries1=2
tcp_retries2=2
tcp_syn_retries=2

my mid-tier tnsnames.ora file is setup using the scan listener.

(DESCRIPTION=(ADDRESS_LIST=(LOAD_BALANCE=ON)(FAILOVER=ON) (ADDRESS=(PROTOCOL=TCP)(HOST=xxx.xxx.xxx.xx1)(PORT=xxxx)) (ADDRESS=(PROTOCOL=TCP)(HOST=xxx.xxx.xxx.xx2)(PORT=xxxx)) (ADDRESS=(PROTOCOL=TCP)(HOST=xxx.xxx.xxx.xx3)(PORT=xxxx))) (CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=SCAN)))