Specifications

Table Of Contents
9
Release Notes for Cisco 7000 Family for Cisco IOS Release 12.1 T
78-10811-05
System Requirements
Feature Set Tables
The Cisco IOS software is packaged in feature sets consisting of software images—depending on the
platform. Each feature set contains a specific set of Cisco IOS features.
Release 12.1 T supports the same feature sets as Release 12.1, but Release 12.1 T can include new
features supported by the Cisco 7000 family.
Caution Cisco IOS images with strong encryption (including, but not limited to 168-bit (3DES data
(encryption feature sets)) are subject to United States government export controls and have
limited distribution. Strong encryption images to be installed outside the United States are
likely to require an export license. Customer orders may be denied or subject to delay due
to United States government regulations. When applicable, purchaser/user must obtain
local import and use authorizations for all encryption strengths. Please contact your sales
representative or distributor for more information, or send an e-mail to export@cisco.com.
Table 4 through Table 17 list the features and feature sets supported by the Cisco 7000 family in
Cisco IOS Release 12.1 T and use the following conventions:
Yes—The feature is supported in the software image.
No—The feature is not supported in the software image.
In—The number in the “In” column indicates the Cisco IOS release in which the feature was
introduced. For example, (5) means a feature was introduced in 12.1(5)T.
Note This table might not be cumulative or list all the features in each image. You can find the
most current Cisco IOS documentation on Cisco.com. These electronic documents may
contain updates and modifications made after the hardcopy documents were printed.
Table 4 Feature List by Feature Set for the Cisco 7100 Series
Features In
Software Images by Feature Sets
IP IPSec 56 IPSec 3DES IP/FW/IDS
Bridging and IBM Networking
Bridging Between IEEE 802.1Q vLANs (3) No No No No
SDLC SNRM Timer and Window Size Enhancements (5) Yes Yes Yes Yes
Configuration Fundamentals
AutoInstall Using DHCP for LAN Interfaces (5) Yes Yes Yes Yes
Expression MIB Support of Delta, Wildcarding and
Aggregation
(3) Yes No No Yes
Interface Index Persistence (5) Yes No No Yes
NTP MIB (5) Yes Yes Yes Yes
Parser Cache (5) Yes Yes Yes Yes
IP Addressing and Services
NAT—Enhanced H.225/H.245 Forwarding Engine (5) No No No Yes