Cisco IPS 7.1 Installation Guide download pdf (Page 51)

3-3

Cisco Intrusion Prevention System Appliance Hardware Installation Guide for IPS 7.1

OL-24002-01

Chapter 3 Installing the IPS 4270-20

Product Overview

Media-rich environments are characterized by content, such as that seen on popular websites with video

and file transfer. Transactional environments are characterized by connections, such as E-commerce,

instant messaging, and voice. Figure 3-1 demonstrates the spectrum of media-rich and transactional

environments.

Figure 3-1 Media-rich and Transactional Environments

The IPS 4270-20 has two built-in GigabitEthernet network ports and nine expansion slots. The network

port numbers are numbered from top to bottom beginning with 0 and the expansion slot numbers increase

from right to left. The two built-in GigabitEthernet ports are used for management and are called

Management0/0 and Management0/1. Management0/1 is reserved for future use. Slots 1 and 2 are

reserved for future use. You can populate slots 3 through 8 with supported network interface cards. Slot

9 is populated by a RAID controller card and is not available for use by network interface cards. The

sensing interfaces are called GigabitEthernet.

Because of the multiple interfaces on the IPS 4270-20, it can cover multiple subnets, each of which have

bandwidth requirements in the multi-T3 range or Gigabit range, and the multiple interfaces can be

connected directly to the additional monitoring interfaces without needing to SPAN the traffic through

a switch.

For improved reliability, the IPS 4270-20 uses a compact flash device for storage rather than a hard-disk

drive. The IPS 4270-20 supports two optional network interface cards, the 2SX interface card with

fiber-optic ports, and the 4GE bypass interface card with copper ports that contains the hardware-bypass

feature. Initially the IPS 4270-20 supports only the built-in interfaces and these two interface cards.

The IPS 4270-20 supports a maximum of 16 sensing ports. Any additional configured ports will not be

monitored and will not appear in the IPS configuration or statistics and no inline traffic will be forwarded

on or between these ports. You receive the following error if you exceed the number of supported ports:

The number of installed network interfaces exceeds the limit of 16. The excess interfaces

are ignored.

Note If you add a new interface card that exceeds the limit, one or more of the previous sensing interfaces may

become disabled.

The IPS 4270-20 ships with two power supplies, thus supporting a redundant power supply

configuration. The IPS 4270-20 operates in load-sharing mode when the redundant power supply is

installed.

For More Information

• For more information on sensor interfaces, see Sensor Interfaces, page 1-4.

• For more information on the supported interface cards, see Supported Interface Cards, page 3-4.

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MEDIA-RICHTRANSACTIONAL

Commerce

Gaming

Streaming

Video

WWW

Instant

Messaging

Voice

Collaborative

Workspaces

Data

Replication

Web 2.0

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