Chapter 24: LFAP Configuration Guide

Cabletron’s Traffic Accounting Services

Cabletron’s Accounting Services consists of the following components:

LFAP agent on the SSR that collects application flow accounting information and sends it to the Cabletron FAS. You can configure the SSR to collect information on an entire interface or on a specific host-to-host application flow. Configuring the LFAP agent on the SSR is described in this chapter. See the SmartSwitch Router Command Line Interface Reference Manual for details on the lfap commands.

One or more Cabletron FAS systems. The main responsibility of Cabletron’s FAS is to listen for LFAP messages from the SSRs on the network and collect the information. A single FAS can collect data from multiple SSRs. See the Cabletron Accounting Installation and Upgrade Guide for information about configuring the FAS.

Cabletron Traffic Accountant is a database and reporting application that allows you to create customized reports. See the Cabletron Accounting Installation and Upgrade Guide for information about installing the Traffic Accountant; see the FAS and CTA User Reference for information about using the Traffic Accountant.

Figure 26 shows the interactions between LFAP on the SSR, the FAS, and the Traffic Accountant.

Traffic

Accountant

Report Requests and Queries

FAS

FAS

LFAP messages

Router

Router

Router

Figure 26. Cabletron’s Network Traffic Accounting Services

Configuring the LFAP Agent on the SSR

Because the FAS-to-SSR connection is via TCP, LFAP messages can be transmitted across a LAN or a WAN. However, if you are deploying traffic accounting to save backbone or WAN bandwidth, it makes sense to have the FAS as close as possible to the SSRs that it manages.

Up to three FAS systems can be configured on an SSR, although the SSR can only send LFAP messages to a single FAS at a time. The first configured FAS is the primary, so the SSR

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Cabletron Systems 9032578-05 manual Cabletron’s Traffic Accounting Services, Configuring the Lfap Agent on the SSR