Change Network settings for Public Interface in 11g R2 RAC

To change the network adaptor name from eth1 to bond1 for public interface, this is what needs to happen:

1. Stop Oracle Clusterware on all the Nodes

# ./crsctl stop crs

2. Start the bond1 Network interface on all the nodes.
# ifup bond1

3. If the eth1 interface is no longer available, the below command will not be starting the VIPs and SCAN Listeners
# crsctl start crs

4. Now lets change the network adaptor name in the gpnp profile so that the CRS will know which network adaptor to use to initiate the private interconnect traffic

# ./gpnptool edit -p=/u01/app/11.2.0.3/grid/gpnp/testserver/profiles/peer/profile.xml.new -o=/u01/app/11.2.0.3/grid/gpnp/testserver/profiles/peer/profile.xml.new -ovr -prf_sq=3 -net1:net_use=public -net1:net_ip=172.20.11.0 -net1:net_ada=bond1

# ./gpnptool sign -p=/u01/app/11.2.0.3/grid/gpnp/testserver/profiles/peer/profile.xml.new -o=/u01/app/11.2.0.3/grid/gpnp/testserver/profiles/peer/profile.xml.new -ovr -w=cw-fs:peer

# ./gpnptool put -p=/u01/app/11.2.0.3/grid/gpnp/uatwlgdb001/profiles/peer/profile.xml.16082012.new

5. Put the changes in the OCR as well
# ./oifcfg setif -global bond1/172.20.11.0:public

6. Stop VIP on the node and make the changes
# ./srvctl stop vip -n testserver
# ./srvctl modify nodeapps -n testserver -A 172.20.11.182/255.255.255.0/bond1

8. Stop the start the clusterware
# ./crsctl stop crs
# ./crsctl start crs

9. Start the clusterware on all the other nodes as well
# ./crsctl start crs