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Cisco MDS 9000 Series Multilayer Switches

Field Notice: FN - 63275 - MDS NX-OS 4.2(1) Software Deferral due to two software bugs - Upgrade Required

Field Notice: FN - 63275 - MDS NX-OS 4.2(1) Software Deferral due to two software bugs - Upgrade Required

September 21, 2009


NOTICE:

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

Revision History

Revision Date Comment
1.0
September 21, 2009
Initial Public Release

Products Affected

Products Affected
MDS NX-OS - 4.2(1)

Problem Description

Two problems have been identified in MDS 4.2(1).

The first issue occurs when installing the SSI image onto a SSM using the install ssi command. The port manager process crashes, which causes a failover to occur. The port manager process continues to crash, which causes the switch to reload.

The second issue occurs in some cases of zone change where unwanted TCAM entries can still persist and the member does not receive change notification.

This problem effects this software:

  • m9200-ek9-kickstart-mz.4.2.1.bin
  • m9200-ek9-mz.4.2.1.bin
  • m9000-ek9-ssi-mz.4.2.1.bin
  • m9100-s2ek9-kickstart-mz.4.2.1.bin
  • m9100-s2ek9-mz.4.2.1.bin
  • m9200-s2ek9-kickstart-mz.4.2.1.bin
  • m9200-s2ek9-mz.4.2.1.bin
  • m9500-sf2ek9-kickstart-mz.4.2.1.bin
  • m9500-sf2ek9-mz.4.2.1.bin

Background

The problems were both identified in internal testing and are documented in CSCtb47714 and CSCtb65569.

Problem Symptoms

Two issues exist in the 4.2(1) software. The first occurs when installing the SSI image onto a SSM using the install ssi command. The port manager process crashes, which causes a failover to occur. The port manager process continues to crash, which causes the switch to reload.

The second issue occurs in some cases of zone change where unwanted TCAM entries can still persist and the member does not receive change notification.

Workaround/Solution

It is recommended that customers upgrade to Cisco MDS NX-OS Release 4.2(1a) or later and activate the zone set again. If the zone set activation is rejected, you see the message: specified zoneset active and unchanged. In this case, add a dummy member with a non-existing pWWN to any of the zones in the zone set and activate the zone set again.

Cisco MDS NX-OS 4.2(1a) should be available on September 25, 2009.

DDTS

To follow the bug ID link below and see detailed bug information, you must be a registered customer and you must be logged in.

DDTS Description
CSCtb47714 (registered customers only) Port process crashed and switch reloaded during install ssi
CSCtb65569 (registered customers only) Zone change unwanted TCAM persist & member may not be notified

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

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