What Is Node Listener?

1.	What Is Node Listener?
Answer» In 11gr2 the listeners will run from Grid INFRASTRUCTURE software home The node LISTENER is a process that helps establish network connections from ASM clients to the ASM instance. Runs by default from the Grid $ORACLE_HOME/bin directory. Listens on port 1521 by default. Is the same as a DATABASE instance listener. Is capable of listening for all database instances on the same MACHINE in addition to the ASM instance. Can run concurrently with separate database listeners or be replaced by a separate database listener. Is named tnslsnr on the Linux platform. In 11gr2 the listeners will run from Grid Infrastructure software home

Answer»

In 11gr2 the listeners will run from Grid INFRASTRUCTURE software home

The node LISTENER is a process that helps establish network connections from ASM clients to the ASM instance.
Runs by default from the Grid $ORACLE_HOME/bin directory.
Listens on port 1521 by default.
Is the same as a DATABASE instance listener.
Is capable of listening for all database instances on the same MACHINE in addition to the ASM instance.
Can run concurrently with separate database listeners or be replaced by a separate database listener.
Is named tnslsnr on the Linux platform.

In 11gr2 the listeners will run from Grid Infrastructure software home

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