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TIBCO iProcess® Engine 11.9.1

# port_range_nodes

The `port_range_nodes` table lists which port range configurations (as defined in the port_range_conf table) are being used by which machines in the iProcess Engine node (as defined in the node_cluster table).

Note | It is not mandatory for each machine in an iProcess Engine node to have to sit behind the same firewall. Different machines may use different firewalls, or no firewall.

## Structure

The `port_range_nodes` table has the following structure:

    TABLE port_range_nodes (
    	port_range_id		integer		NOT NULL,
    	logical_machine_id	integer		NOT NULL)

Column | Description
`port_range_id` | ID of a particular port range configuration, as defined in the port_range_conf table.
`logical_machine_id` | ID of the server using this port range configuration, as defined in the node_cluster table.

## Primary Key

The following primary key is defined for this table.

Key Name | Column(s) | Index Tablespace
`pk_port_range_nodes` | `port_range_id`, `logical_machine_id` | TINYINDEXSPACE

## Foreign Keys

The following foreign key is defined for this table.

Key Name | Column(s) | Referenced in Table...
`fk_port_range_nodes` | `port_range_id` | port_range_conf

## Indexes

None.

## Storage

The following STORAGE values are defined for this table.

Value | Definition
Initial | TINYTABLESIZE
Percentage Increase | TINYTABLEPCTINCREASE
Tablespace | TINYTABLESPACE

## Table Activity

The `port_range_nodes` table contains one row per server that sits behind a firewall (port range configuration) defined in the port_range table.

Rows are added, updated and deleted in the following situations.

A row is... | When...
added | a user adds a machine to the list of servers that sit behind a particular port range configuration, using the `SWDIR``\util\swadm` utility.
updated | a user moves a machine from sitting behind one particular port range configuration to another, using the `SWDIR``\util\swadm` utility.
deleted | a user removes a machine from the list of servers that sit behind a particular port range configuration, using the `SWDIR``\util\swadm` utility.

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TIBCO iProcess® Engine