User guide

System Requirements

Release Notes for Cisco 2500 Series for Cisco IOS Release 12.0 T

78-5563-07 Rev.H0

Determining the Software Version

To determine the version of Cisco IOS software running on your Cisco 2500 series, log in to the router

and enter the show version EXEC command:

router> show version

Cisco Internetwork Operating System Software

IOS (tm) 2500 Software (C2500-DOS-L), Version 12.0(7)T, RELEASE SOFTWARE

Upgrading to a New Software Release

For information on upgrading to a new software release, see the product bulletin Cisco IOS Software

Release 12.0 T Upgrade Paths and Packaging Simplification (#819: 1/99) on CCO at:

Technical Documents: Product Bulletins: Software

Under Cisco IOS 12.0, click Cisco IOS Software Release 12.0 T Upgrade (#819: 1/99).

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 12.0 T supports the same feature sets as Release 12.0, but Release 12.0 T can include new

features supported by the Cisco 2500 series.

WAN Interfaces

EIA/TIA-232 Cisco 2500 series

EIA/TIA-449 Cisco 2500 series

EIA-530 Cisco 2500 series

X.21 Cisco 2500 series

V.35 Cisco 2500 series

Serial, synchronous Cisco 2500 series

Serial, synchronous, and

asynchronous

Cisco 2520, 2521, 2522, and 2523

only

ISDN BRI S/T Cisco 2503, 2504, 2516, 2520, 2521,

2522, 2523, 2524, and 2525 only

ISDN BRI U Cisco 2524 and 2525 only

Table 2 Supported Interfaces for the Cisco 2500 Series (continued)

Interface, Network

Module, or Data Rate Product Description Platforms Supported

Table 3 Feature Sets Supported by the Cisco 2500 Series

Feature Set Image Names Feature Set Matrix Term Software Image Platforms In

IP Basic

c2500-i-l Cisco 2500 series

IP/FW Basic c2500-io-l Cisco 2500 series