User guide

4 Release Notes for Cisco 2500 Series for Cisco IOS Release 12.0 T
System Requirements
Cisco AS2509-RJ and Cisco AS2511-RJ Access Servers
The Cisco AS2509-RJ and Cisco AS2511-RJ access servers connect asynchronous serial devices to
LANs and WANs. The access servers combine the functions of a terminal server, protocol translator,
and a router and perform both synchronous and asynchronous routing of supported protocols.
These access servers provide the following interfaces and ports:
• Eight (Cisco AS2509-RJ) or 16 (Cisco AS2511-RJ) asynchronous serial ports for connection to
modems, terminals, or other asynchronous devices
• One Ethernet attachment unit interface (AUI) port for connection to a LAN
• One synchronous serial port for connection to a WAN
• One EIA/TIA-232 console port for connection to a console terminal
• One EIA/TIA-232 auxiliary port for connection to a terminal or modem
Determining Your Software Release
To determine the version of Cisco IOS software currently running on your Cisco 2500 series router,
log in to the platform and enter the show version EXEC command. The following sample output
from the show version command indicates the version number on the second output line:
router>show version
Cisco Internetwork Operating System Software
IOS (tm) 2500 Software (C2500-DOS-L), Version 12.0(4)T, RELEASE SOFTWARE
Additional command output lines include more information, such as processor revision numbers,
memory amounts, hardware IDs, and partition information.
Upgrading to a New Software Release
For information on upgrading to a new software release, refer to the Cisco IOS Software
Release 12.0 T Upgrade Paths and Packaging Simplification (#819: 1/99) product bulletin located
on CCO.
On CCO, click on this path:
Service & Support: 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.
Table 3 Feature Sets Supported by the Cisco 2500 Series
Feature Set Image
Names
Feature Set Matrix
Term Software Image Platforms In
1
IP Basic c2500-i-l Cisco 2500 series
IP/FW Basic c2500-io-l Cisco 2500 series