User guide

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

78-5563-07 Rev.H0

System Requirements

Hardware Supported

Cisco IOS Release 12.0 T supports the Cisco 2500 series:

• Single LAN routers—Models 2502, 2503, 2504, 2520, 2521, 2522 and 2523

• Mission-specific, entry-level routers—Models 2501CF, 2502CF, 2503I, 2504I, 2520CF, 2520LF,

2521CF, 2521LF, 2522CF, 2522LF, 2523CF and 2523LF

• Router/hub combinations—Models 2505, 2507 and 2516

• Access servers—Models 2509 to 2512

• Dual LAN routers—Models 2513, 2514 and 2515

• Modular routers—Models 2524 and 2525 (optional integrated DSU/CSU or NT-1)

For detailed descriptions of the new hardware features, see the “New and Changed Information” section

on page 18.

2. The number in the “In” column indicates the Cisco IOS release when the image was first introduced. For example, (4) means an image

was introduced in Release 12.0(4)T. If a cell in this column is empty, the interface was included in the initial base release.

3. 6 MB in Release 12.0(4)T. 4 MB in Release 12.0(3)T and earlier releases.

4. 8 MB in Release 12.0(4)T and earlier releases.

5. 8 MB in Releases 12.0(3)T and earlier releases.

6. 4 MB in Release 12.0(4)T and earlier releases.

7. This image is only available in Release 12.0(5)T and earlier releases.

8. 6 MB in Release 12.0(4)T and earlier releases.

9. 6 MB in Release 12.0(3)T and earlier releases.

Table 2 Supported Interfaces for the Cisco 2500 Series

Interface, Network

Module, or Data Rate Product Description Platforms Supported

LAN Interfaces

Ethernet (AUI) Cisco 2501, 2503, 2509, 2511, 2513,

2514, 2520, 2522, and 2524 only

Ethernet (10BaseT) Cisco 2505, 2507, 2516, and 2524

only

4-Mbps Token Ring Cisco 2502, 2504, 2513, 2515, 2521,

2523, and 2525 only

16-Mbps Token Ring Cisco 2502, 2504, 2513, 2515, 2521,

2523, and 2525 only)

WAN Data Rates

48/56/64 kbps Cisco 2500 series

128 kbps Cisco 2500 series

1.544/2.048 Mbps Cisco 2500 series