Cisco Cisco IOS Software Release 15.2(3)E

For more information on the Catalyst 4900M, Catalyst 4948E and Catalyst4948E-F Ethernet Switches, 
visit:

Although this release note and those for the Catalyst 4900M, Catalyst 4948E, Catalyst 4948E-F Series 
Switches, Catalyst 4500 Series Switches, and the Catalyst 4500-X Series Switches differ, each leverages 
the same Software Configuration Guide, Command Reference Guide, and System Message Guide.

This publication consists of these sections:

The Enterprise Services image supports Cisco Catalyst 4948E, Catalyst 4948E-F and Catalyst 4900M 
Ethernet Switch Series software features based on Cisco IOS Software 15.1(2)SG, including enhanced 
routing. BGP capability is included in the Enterprises Services package.

The IP Base image supports Open Shortest Path First (OSPF) for Routed Access, Enhanced Interior 
Gateway Routing Protocol (EIGRP) “limited” Stub Routing, Nonstop Forwarding/Stateful Switchover 
(NSF/SSO), and RIPv1/v2. The IP Base image does not support enhanced routing features such as BGP, 
Intermediate System-to-Intermediate System (IS-IS), Full OSPF, Full Enhanced Interior Gateway 
Routing Protocol (EIGRP) & Virtual Routing Forwarding (VRF-lite).

The LAN Base image complements the existing IP Base and Enterprise Services images. It is focused 
on customer access and Layer 2 requirements and therefore many of the IP Base features are not 
required. The IP upgrade image is available if at a later date you require some of those features. The 
Cisco Catalyst 4900M Switch Series only supports the IP Base and Enterprise Services images.

Starting with Cisco IOS Release 15.0(2)SG, on Catalyst 4900M, Catalyst 4948E and Catalyst 4948E-F, 
support for NEAT feature has been extended from IP Base to LAN Base and support for HSRP v2 IPV6 
has been extended from Enterprise Services to IP Base.

Starting with Cisco IOS Release 15.2(1)E, OSPF Routed Access in IP Base support rose to 1000 routes.