Select the product you need help with

DLC May Send I-frames on a Disconnected Connection

Article ID: 282798 - View products that this article applies to.

This article was previously published under Q282798

Expand all | Collapse all

SYMPTOMS

The Data Link Control (DLC) protocol may send I-frames on a connection that is in disconnected state.

Back to the top | Give Feedback

CAUSE

This issue occurs because there is a problem with the computer that uses the DLC protocol.

Back to the top | Give Feedback

A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

(http://support.microsoft.com/default.aspx?scid=fh;en-us;cntactms)

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English-language version of this fix should have the following file attributes or later:

   Date        Time    Size     File name  Platform
   ------------------------------------------------
   07/12/2000  05:08p   55,376  dlc.sys    Intel
   07/12/2000  05:06p  102,512  dlc.sys    Alpha

Back to the top | Give Feedback

STATUS

Windows NT 4.0

Microsoft has confirmed that this is a problem in Windows NT 4.0.

Windows 2000

Microsoft has confirmed that this is a problem in Windows 2000. This problem was first corrected in Windows 2000 Service Pack 2.

Back to the top | Give Feedback

MORE INFORMATION

The DLC protocol is attempting to send I-frames on a connection that is in a disconnected state. The DLC protocl specification does not allow this behavior. This problem can occur when Cisco routers use Data-Link Switching (DLSW).

Back to the top | Give Feedback