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New Member

Simple IOS question (always choose IP Plus and latest)???

Looking to download a new IOS for a 3640 router. The router is going to be used in a point-to-point T1 doing load balancing. The available flash is only 16MB so is it safe to download the latest and greatest IOS (that is less than 16MB) and choose IP Plus for the feature set???? When would you NOT choose IP Plus?

New Member

Re: Simple IOS question (always choose IP Plus and latest)???


If you are not doing dynamic routing and static is enough. If you do not need features like dhcp, nat, .. Then no need of IP plus.

but if you do load balancing using bgp/cef the go gor ip plus.

Also, you don't really always need the latest and the "greatest". Youshould more focus o n your needs and also take a stable ios.



New Member

Re: Simple IOS question (always choose IP Plus and latest)???

how i know what IOS is "stable" for my application?

Re: Simple IOS question (always choose IP Plus and latest)???


As per cisco all the GD (General Deployment) versions are stable codes can search out for a GD version for your box which can help you to have hassel free time..

Deferral (DF)

The purpose of the Deferral Advisory is to announce the removal of affected IOS image(s) from Cisco's offerings (i.e.CCO) and to introduce its replacement IOS image(s). At the time that the Deferral of an IOS image is advised, customers are strongly urged to migrate from the affected image(s) to the replacement image(s).

Early Deployment (ED)

Software releases that provide new features and new platform support in addition to bug fixes. Cisco IOS CTED, STED, SMED, and XED are variations of ED software releases.

General Deployment (GD)

Date at which this software release reached the "General Deployment" milestone in its lifecycle. A Major Release of Cisco IOS software reaches the "General Deployment" milestone when Cisco feels it is suitable for deployment anywhere in customer networks where the features and functionality of the release are required. Criteria for reaching the "General Deployment" milestone are based on, but not limited to, customer feedback surveys from production and test networks using the releases, CE bug reports, and reported field experience. Only Major Releases are candidates to reach the General Deployment milestone.

Limited Deployment (LD)

A Major Release of Cisco IOS software is said to be in the "Limited Deployment" phase of its lifecycle during the period between initial FCS and the General Deployment (GD) milestones.


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