User guide

Application 69

7 Application

This section will present techniques and applications describing the practical use and new remedies

for performing network analysis requirements using SS-1200-S, and SS-2200-S series solutions.

The SS-4200-S series solutions are similar.

7.1 SS-1200 Series

This section describes examples to familiarize you with the basic configuration process.

7.1.1 Utilization less than 50 percent (HyperTerminal configuration example)

PREMISE: Most interfaces typically operate at far less than half of their available bandwidth.

Ethernet link utilization is at its lowest closest to the network edge. Although hard data is difficult to

come by, anecdotal research reveals that a typical fast Ethernet link operates at less than 10-20

percent of bandwidth utilization and Gigabit Ethernet at less than 5-10 percent of bandwidth

utilization in enterprise edge applications - where users interface the network.

This network application example consists of users distributed across a workgroup switch that

allows end users server access. The server and end users utilization is less than 50 percent during

peak load periods. The security department wants to view all server bound access from the users

and view user bound traffic from the server.

GOAL: This application will use a SS-1204BT-BT-S as follows:

1. View user traffic to and from the server.

2. Provide access for redundant security tools.

The tap will allow better visibility to user-server traffic. A power fault tolerant tap does not bring

down the network link if the tap fails. The first goal requires tapping the link between the workgroup

switch and the server.

The second goal involves aggregating and replicating traffic from the access method developed

previously. The SS-1204BT-BT-S acts as an aggregating tap, combining the data for the redundant

security tools.

SOLUTION: The SS-1204BT-BT-S taps the link, accepts the input from the workgroup switch and

server, aggregates and replicates the traffic to multiple ports for analysis and utilizes the factory