Control Unit Image Number Not Supported on ESCON

• Microsoft SNA Server, versions 2.1, 3.0, 3.0 SP1

SYMPTOMS

There is no Control Unit Image Number support for ESCON-type channel connections.

CAUSE

SNA Server was not originally written to provide direct support for ESCON connections.

RESOLUTION

A Control Unit Image Number field has been added to connections using a channel-type link service. The field is found on the Address tab of the connection. It is an integer with a default value of 0 and a range of 0- 0xF. The Control Unit Image Number is ignored when using Bus&Tag channel- type links.

STATUS

Microsoft has confirmed this to be a problem in SNA Server versions 3.0 and 3.0 Service Pack 1 (SP1). This problem was corrected in the latest SNA Server version 3.0 U.S. Service Pack. For information on obtaining this Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K

Additional query words:

Keywords : snachannel snamanager kbfix3.00.sp2
Version : WINDOWS:2.1,3.0,3.0 SP1
Platform : WINDOWS
Issue type : kbbug