>it can be connected also directly by using an OSA token-ring adapter in the
>HOST and its configuration in the mainframe is similar to the CIP card on
>the router , they are both generated by an XCA node .
>there many types of OSA cards that work with both SNA and IP , they use
>Token Ring or Ehternet or even Fast Ethernet and GigaEthernet.
>their behaviour is the same as the CIP router , but the diffirent is with
>the router you can move some processor intsensive tasks in the router from
>the mainframe
>such as TN3270e and TCP offload.
>off course for both CIP router and OSA card there are some funtion that you
>can not use such as SNI function of FEP wich consists of routing between tow
>FEPs in SNA subarea environment.This needs migration from Subarea to APPN.
>"Priscilla Oppenheimer"  a icrit dans le message :
>[EMAIL PROTECTED]
>>  The mainframe would probably attach to the Token Ring network via a Front
>  > End Processor (FEP) which would have a Token Ring Interface Card (TIC).


Unless there have been recent upgrades, the CIP emulates a PU type 2 
3172 device controller, not a PU type 4 3745 (i.e., the true FEP). 
There are some software functions, usually dealing with very weird 
legacy protocols but also some multi-mainframe software (e.g., CMC) 
for which you need a true FEP.

For most applications, a CIP will serve nicely.

>  >
>>  The FEP could be replaced with a router with a CIP.
>>
>>  Priscilla
>>
>>  At 12:25 AM 11/3/01, John Tafasi wrote:
>>  >Hi Group,
>>  >
>>  >Can the IBM mainframe computer be connected directly to the token ring?
>>  >
>>  >Thanks
>>  >
>>  >John Tafasi
>>  >
>>  >
>>  >_______________________
>>  >watch your phone call records on the web at:
>>  >http://www.freedomstar.com/sh1885969
>>  ________________________
>>
>>  Priscilla Oppenheimer
>>  http://www.priscilla.com




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