Oracle-L: Routing question.

From: Ferguson II, Roy E <roy.e.ferguson.ii_at_intel.com>
Date: Fri, 22 Mar 2002 13:18:35 -0800
Message-ID: <F001.0043153B.20020322131835@fatcity.com>

All,

Can you bind Oracle to communicate through a particular IP address by making note of it in the tnsnames.ora and listener.ora files.

or does it use the operating system for routing?

We are adding a second nic card for redundancy purposes whereby if one NIC is down, the other NIC would pick up the load.

Environment:
Sun Solaris
Oracle EE 8.1.7.2

The current game plan is documented below:

Configure the interface on the sun server

ping from local machine to the new address
ping from other machine on the same subnet to new address

Add a second ADDRESS= line to ADDRESS_LIST section in listener.ora file

manually tnsping on db server using: tnsping "(ADDRESS=(PROTOCOL=TCP)(HOST=new.ip.address)(PORT=1521))"
manually tnsping from other machine using same command

Add second address to address tnsnames.ora service name (under ADDRESS_LIST section)

tnsping the service name to ensure that some form of it works (this will not check the new interface, necessarily)
use sqlplus to connect to service

Add second address to clients' tnsnames.ora files

tnsping service name on each client
use sqlplus to connect to service on each client

Physically remove ethernet cable from old NIC on DB server (could be simulated by simply bringing down the network interface in software, but this could cause other problems)

tnsping service name from db server
tnsping service name from clients
use sqlplus to connect to service on db server
use sqlplus to connect to service on each client

Replace network cable and/or re-enable interface on db server

tnsping service name from db server
tnsping service name from clients
use sqlplus to connect to service on db server
use sqlplus to connect to service on each client

Thanks in advance.

Roy E Ferguson II

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Author: Ferguson II, Roy E
  INET: roy.e.ferguson.ii_at_intel.com

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Received on Fri Mar 22 2002 - 15:18:35 CST