What is the difference between an IP base image and an IP services image


Mar 29, 2014 7:26 PM
Jun 22nd, 2009


The IP base is for the Standard Multilayer Software Image (SMI) switches, and the IP services image is for the Enhanced Standard Multilayer Software Image (EMI) switches in Cisco IOS  Software Release 12.2(25)SEB and later.

For the Catalyst 3750 and 3560 switches, Cisco IOS Software Release 12.2(25)SEA and earlier referred to the image that provides Layer 2+ (L2) features and basic Layer 3 routing as the Standard Multilayer Image (SMI). The image that provides full Layer 3 routing and advanced services was referred to as the EMI.

The inter VLAN routing feature is supported on both IP base or SMI and IP services or EMI image Layer 3 switches. For Layer 2-only switches, you require a Layer 3 routing device with any of the previous images.

The IP Base feature set includes advanced quality of service (QoS), rate limiting, access control lists (ACLs), and basic static and Routing Information Protocol (RIP) functions. Dynamic IP routing protocols (Open Shortest Path First (OSPF), BGPv4, Enhanced Interior Gateway Routing Protocol (EIGRP)) are available only on the IP services image.

The IP Services image provides a richer set of enterprise-class features, which includes advanced hardware-based IP unicast and IP Multicast routing. Support for IPv6 Layer 3 switching in hardware is also available with the addition of the Advanced IP Services license to either the IP Base or the IP Services images. Both the IP base Image and the IP services image allow for Layer 3 and Layer 4 lookups for QoS and security.

Refer to Cisco Catalyst 3750 Q&A for more information.

Overall Rating: 5 (1 ratings)
praetoleiad Sun, 10/10/2010 - 19:19

Informative, but as per Cisco Feature Navigator, IP Base supports EIGRP and OSPF. I am confused now!

payala Thu, 01/20/2011 - 11:19

You are right, EIGRP is supported in IP BASE but it only supports EIGRP STUB, which means that this SW will be the last SW connected to the EIGRP topology.

About OSPF I'm pretty sure that is the same which only supports the very basic OSPF.


Yogesh Ramdoss Fri, 06/03/2011 - 07:39

Cisco IOS Packaging Product Bulletin:

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ayussuf Fri, 09/30/2011 - 13:24

Can NAT be done with the IP Based IOS

praetoleiad Fri, 09/30/2011 - 22:58

In Catalyst Switches except Cat 6500, NATing is not supported. It is only supported in Routers, and if you mean that IP Base IOS in routers, YES it does support NAT.

adrian.yasona Tue, 12/17/2013 - 03:38

Can I upgrade the WS-C3560-24TS-S with IP Base IOS image to IP Services as well as to Advance IP Services? Sorry for the ignorance. Thanks in advance.

Roger D Thu, 01/02/2014 - 21:10

Hi Adrian, Yes you can upgrade from IP base to IP Services or Advance IP Services.

milankerslager Sat, 03/29/2014 - 19:26

You may want to find out your current version by looking to output of command show version for line starting with System image file.

Also you may look to list of files stored in your flash by command dir flash: (there could be stored more images).


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This Document

Posted June 22, 2009 at 4:12 PM
Updated February 2, 2011 at 5:11 AM
Comments:9 Overall Rating:5
Views:169637 Contributors:8

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