Introducing 6850E to 6400 stack

[eaglecreek]

Hi,

Im tryingto introduce a 6850E switch to 6400 stack.
OS6400-P24 6.4.5.402.R02 GA,
OS6850E-48 6.4.5.402.R02 GA

However i'm getting the following error
I JAN 03 20:07:23 2014 STACK-MANAGER info == SM == Stacking link A Tx disabled
FRI JAN 03 20:07:23 2014 STACK-MANAGER info == SM == Stacking link A Rx disabled
FRI JAN 03 20:09:43 2014 TELNET info Session 1, Session Ending
FRI JAN 03 20:10:18 2014 STACK-MANAGER info == SM == Stacking link B status changed: DOWN
FRI JAN 03 20:10:22 2014 STACK-MANAGER info == SM == Stacking link A status changed: DOWN
FRI JAN 03 20:13:01 2014 TELNET info Session 2, Session Ending
FRI JAN 03 20:38:26 2014 STACK-MANAGER info == SM == Stacking link A status changed: UP
FRI JAN 03 20:38:26 2014 STACK-MANAGER info == SM == Stacking link A Tx enabled
FRI JAN 03 20:38:26 2014 STACK-MANAGER info == SM == Stacking link A Rx enabled
FRI JAN 03 20:38:28 2014 STACK-MANAGER info == SM == Stacking link B status changed: UP
FRI JAN 03 20:38:28 2014 STACK-MANAGER info == SM == Stacking link B Tx enabled
FRI JAN 03 20:38:28 2014 STACK-MANAGER info == SM == Stacking link B Rx enabled
FRI JAN 03 20:38:28 2014 STACK-MANAGER warning Detected incompatible neighbor of type Kite2 FRI JAN 03 20:38:28 2014 STACK-MANAGER warning ====Dumping stack type and neighbor info=== FRI JAN 03 20:38:28 2014 STACK-MANAGER warning My Stack type is 20. Creation val : 4 FRI JAN 03 20:38:28 2014 STACK-MANAGER warning My Neighbor element type 25. Event val : 1

[devnull]

You can't.

A stack must consist of same models. e.g. different 6400 OR different 6850, OR 6450.
Mixing different plattforms (as 6850 and 6400) is not possible.

6850E and 6850 do mix, but are limited to 6850 features (e.g. no AOS >=6.4.5)