Extreme Networks ExtremeWare XOS 11.3, Manual

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ExtremeWare XOS 11.3 Concepts Guide
635
C CNA Agent
The entire CNA software package consists of multiple parts. The Extreme Networks devices run only
the CNA Agent. You must have the entire package; you cannot use the CNA Agent without the CNA
software from Avaya. The user interface is a combination of a Java applet hosted from the CNA Server
and a Command Line Interface (CLI). You configure and manage the CNA Agent using the CLI.
NOTE
Contact your Avaya representative to obtain the rest of the CNA software and the associated documentation.
If you are using Avaya CNA solutions, you download a separate software module to add the CNA
Agent to ExtremeWare XOS 11.2 software; this software module runs on all platforms.
NOTE
You must download and install the SSH software module prior to downloading and installing the CNA Agent software
module.
This appendix covers the following topics regarding the CNA Agent:
●
Overview on page 635
●
Downloading the CNA Agent Software Module on page 636
●
Running the Tests on page 636
●
Configuring the CNA Agent on page 637
Overview
The CNA Agent accepts requests (from the CNA Server) to run tests for measuring and verifying
network performance, and the CNA Agent reports back the results to the CNA Server. The CNA Agent
functions as a UDP service accepting authenticated requests from and returning test results to the CNA
Server.
You download the CNA Agent software as a separate software module onto your device. If you do not
have it already, you must also download the separate SSH software module, which contains SSL.
Once you enable the software, the CNA Agent registers with the CNA Server and exchanges openSSL
keys, using a 128-bit encryption key. All following communication between the CNA Agent and the
CNA Server is encrypted.
The CNA Server communicates with the CNA Agent to request specific tests and to schedule those
tests. The CNA Agent runs the requested tests and sends the results back to the CNA Server.
The CNA Agent can register with one CNA Server, talk to one CNA Server at a time, and respond to
only one test request at a time. The other test requests are queued up.