Product Bulletin No. 1749
Cisco IOS Early Deployment Release 12.1(9)EA1
Introduction
This Product Bulletin describes the content and delivery information concerning Cisco IOS® software release 12.1(9)EA1. This release is specific for the Catalyst® 3550 and 2950 Series platform. For more information about the Cisco IOS software release process, please see Product Bulletin #537.
Migration Guide
Diagram 1 below displays Cisco IOS 12.1(9)EA1 release functionality relative to the 12.1 and 12.1E releases. This diagram identifies the recommended migration path.
Figure 1: Cisco IOS Release 12.1EA Release Train
New Features in Cisco IOS Release 12.1(9)EA1
The following features will be delivered in the initial release of 12.1(9)EA1.
Table 1: Cisco IOS Release 12.1(9)EA1 New Features
12.1(9)EA1 |
Catalyst 3550 EMI and SMI |
Catalyst 2950 Enhanced Image |
Catalyst 2950 Standard Image |
|---|---|---|---|
| 802.1Q tunneling |
Yes |
No |
No |
| 4096 VLAN IDs |
Yes |
Yes |
No |
| 802.1w |
Yes |
Yes |
No |
| 802.1s |
Yes |
Yes |
No |
| DHCP Option 82 |
Yes |
No |
No |
| Port-based ACLs (PACL) |
Yes |
Already supported |
No |
| CNS agent (IE 2100 support) |
Yes |
Yes |
No |
| 64-bit counters on gig ports |
Already supported |
Yes |
No |
| CWDM GBIC support |
Yes |
Yes |
Not Applicable |
| Voice VLAN (Auxiliary VLAN) |
Yes |
Yes |
Yes |
| Port Security MAC address aging |
Yes |
Yes |
Yes |
| IGMP filtering |
Already supported |
Yes |
Yes |
| 802.1x |
Already supported |
Already supported |
Yes |
| VTP pruning |
Already supported |
Already supported |
Yes |
| Dynamic access ports |
Already supported |
Already supported |
Yes |
Catalyst 3550 EMI and SMI platforms include: Catalyst 3550-12G, 3550-12T, 3550-24-SMI, 3550-24-EMI, 3550-24-DC-SMI, 3550-48-SMI, 3550-48-EMI.
Catalyst 2950 Enhanced Image platforms include: Catalyst 2950T-24, 2950C-24, 2950G-12-EI, 2950G-24-EI, 2950G-24-EI-DC, 2950G-48-EI.
Catalyst 2950 Standard Image platforms include: Catalyst 2950-12, 2950-24.
Detailed Information
For more information about the platforms and features being delivered in 12.1(9)EA1 please reference the following Release Notes documents:
- http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/
- http://www.cisco.com/univercd/cc/td/doc/product/lan/cat2950/
Support
Cisco IOS software release 12.1(9)EA1 follows the standard Cisco support policy as indicated in the following link
Product Numbers
For more detailed information about feature sets, images and memory recommendations Cisco IOS software release 12.1(9)EA1, please refer to the 12.1(9)EA1 release notes at:
- http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/
- http://www.cisco.com/univercd/cc/td/doc/product/lan/cat2950/
Download Information
There are two software images for all Catalyst 3550-24 and 3550-48 products—the Standard Multilayer Software Image (SMI) and the Enhanced Multilayer Software Image (EMI). Catalyst 3550 switches that were purchased with the SMI preinstalled (WS-C3550-24-SMI, WS-C3550-48-SMI and WS-C3550-24-DC-SMI) are only authorized to be upgraded to the most recent SMI. If an enhancement to the EMI is desired, a software upgrade kit must be purchased before an authorized EMI software download. The part number for the EMI software upgrade is CD-3550-EMI=. If the Catalyst 3550 was purchased with the EMI preinstalled (WS-C3550-24-EMI and WS-C3550-48-EMI), or CD-3550-EMI= has been purchased for the switch, then the downloading of the most recent EMI is authorized. All Catalyst 3550-12T and 3550-12G switches have been shipped with the EMI and are authorized to be upgraded to the most recent EMI. Downloads of the SMI and EMI files will be monitored for adherence to this authorization.
Customers can download Cisco IOS Release 12.1(9)EA1 software from Cisco Connection Online (CCO) in the Software Image Library.