🚀 go-pugleaf

steve@rama.demon.co.uk (Steve Entwistle) wrote:

>My company currently has two networks - an SNA (3745, 3174) network
>and a Cisco router network. We have 2000+ PCs accessing a large Amdahl
>mainframe running MVS. For 'strategic' reasons we are considering
>eliminating all the SNA kit and moving to IP as our core protocol,
>probably using NCIA or TN3270E and perhaps a Cisco CIP or another IP
>gateway solution. I have reservations about both approaches. Firstly,
>I believe the current version of NCIA utitilises RSRB and will require
>the listing of all PCs MAC addresses in the router configuration
>files. I believe there is a new version due which will use DLSw,
>however I have been told that a large number of PCs (300+ per site)
>acting as DLSw peers to a Cisco 7000 router will cause an unacceptable
>load on the router.

>My concerns about TN3270E is that it does not provide the full
>3270/SNA functionality that our users our used to. (I have no hands-on
>experience of TN3270E so I am not sure quite what it's limitations
>are).

>Has anybody successfully implemented a large rollout of NCIA or
>TN3270E ? If so, what problems did you experience along the way ?

Not familiar with NCIA's solution, but I do not believe that CISCO's CIP
supports TN3270E yet.   Apertus Technologies (http://www.apertus.com) has a
data center ready, fault tolerant solution for "E" in either turn key or
software.   There are references on the web page, I believe, or drop me a
line and I can ask for your part of the country or industry.

Bill