Hi, One of my friend was experiancing a terrible response time after RAC upgrade(9.2.0.4) on Solaris 9. I started with checking environment setup and found the following netstat -ni output shows Name Mtu Net/Dest Address Ipkts Ierrs Opkts Oerrs Collis Queue lo0 8232 127.0.0.0 127.0.0.1 31414938 0 31414938 0 0 0 ce0 1500 192.168.1.10 192.168.1.16 4247152182 10 3201108450 0 0 0 There are only 2 interfaces defined 127 series is TCP the loop back and the other is the public. I am yet to get the output of oradebug IPC. I expect 3 IP address 1) TCP loopback 2) Private 3) public but I see only 1) and 3) ??. Am I missing something here?. Have any one of you seen this in Solaris. I have not seen this in HP/IBM. Pls help Cheers Sriram Kumar