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Cisco Intrusion Prevention System Appliance and Module Installation Guide for IPS 7.1
OL-24002-01
Chapter 5 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 5-1 demonstrates the spectrum of media-rich and transactional
environments.
Figure 5-1 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 5-4.
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MEDIA-RICHTRANSACTIONAL
Commerce
Gaming
Streaming
Video
WWW
Instant
Messaging
Voice
Collaborative
Workspaces
Data
Replication
Web 2.0