November 26, 2008

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	26-NOV-2008	Initial Public Release

Products Affected

Products Affected
MDS SSI - 3.2(3n)

Problem Description

An SSM module in MDS series switch may unexpectedly reload due to memory corruption in the VSD process. This problem only affects SSI software images.

This problem only affects the following SSI software file:
m9000-ek9-ssi-mz.3.2.3n.bin

Background

This memory corruption issue could be hit if the MDS receives a PLOGI from a host when it is already logged in the VT. In this case, the PRLI/LOGO frame buffer that is maintained in the MDS is overwritten with the PLOGI frame. This may overrun the buffer, leading to memory corruption.

Problem Symptoms

An SSM module in an MDS series switch may unexpectedly reload due to memory corruption.

Workaround/Solution

The problem is corrected in MDS SSI image version 3.2(3r) and later.

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
CSCsv69304 (registered customers only)	SSM module reload/ Repeated PLOGI/PRLI from host or FIT create failure

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:

• Open a service request on Cisco.com
• By email
• By telephone

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