A P P E N D I X A

Intel® NetStructure™ 7190 Multi-Site Traffic Director User Guide

NCA (Network Configuration Application)

This process is in charge of connecting to and talking to the agents resident on the 7140/7170 or 7180 devices. It also connects to and talks to the dns server and the backed process. It is the NCA that updates configuration information of the dns server every time user types a commit command.

Some of the messages that are logged by the NCA are:

Aug 2 12:13:27 madagascar NCA: NCA has started.

This message is displayed when NCA tries to establish connection to an agent on the specified port.

Aug 2 12:13:27 madagascar NCA: Connection established to address 192.168.16.3 on port 1999.

When connection to an agent fails the following message is displayed.

Aug 3 01:27:23 fox NCA: >>> Error: Connection to address 192.168.16.27 on port 2037 has failed.

Other major errors include the following:

This message is displayed when a socket connection failed to establish. The “code” is an internal error code.

Aug 3 01:27:23 fox NCA: >>> Error: Failed to

establish 192.168.16.3 on port 2000, code: 61.

This message is displayed when NCA process could not allocate memory for its internal use.

Aug 3 01:27:23 fox NCA: >>> Error: could not

allocate memory. Bytes requested: 1024.

Log messages are also generated when switching between primary and secondary mode, and when getting new configuration from the primary 7190.

BACKEND Process

This process is the bridge between the front end CLI command handler and the DNS server. All information goes through backend.

Backend writes to the log only on two occasions.

When the process is started / restarted

Aug 2 12:13:32 madagascar WDOG: 7190 Backend started

154

Page 162
Image 162
Intel 7190 manual NCA Network Configuration Application, Backend Process