Table Of Contents
Product Bulletin No. 2172
Cisco IOS X-Release 12.1(11)YJ4
This Product Bulletin describes the content and delivery information concerning Cisco IOS™ software release 12.1(11)YJ4. It should be used in conjunction with the Product Bulletin titled, Cisco IOS Software Release 12.1EA. 12.1(11)YJ4 is a short lived Early Deployment (ED) release parented to 12.1(11)EA1 and supporting Cisco Catalyst 2950 Long-Reach Ethernet (LRE) Series Intelligent Ethernet switches. This release contains all new features delivered in 12.1 up to 12.1(11)EA1. This IOS software release should not be used for the Cisco Catalyst 2950 Series Intelligent Ethernet switches.
The platform and features delivered with this ED release will be immediately incorporated into Cisco IOS 12.1(X)EA1 and subsequent Cisco IOS 12.1(X)EA1 releases. It is important to note that there are no planned maintenance releases for this ED release. In addition, please note the migration path to the latest EA1 release. Customers should prepare to upgrade using this migration path.
Diagram 1. Cisco IOS Release 12.1(11)YJ Release Train and Migration Guide
New Features in Cisco IOS Release 12.1(11)YJ4
The following features will be delivered in the initial release of 12.1(11)YJ4.
Please see the next section for documents that address details on these new features. Any ED release of software should be utilized first in a test network before being deployed in a production network.
For more information on the Cisco Catalyst 2950 LRE Series, please reference the product information:
For more detailed information about the platforms and features being delivered in 12.1(11)YJ4, please reference the release notes:
Table 2 Cisco IOS Release 12.1(11)YJ4 Image and Memory Recommendations
Platform Image Flash DRAM
Catalyst 2950 LRE
Crypto Image is also supported