Guest

Cisco IGX 8400 Series Switches

Field Notice: Database Corruption Associated with the cnfdmn Command Used in a Network Running Switch Software Release 8.5


November 18, 1998



Products Affected

IGX, IPX, BPX

Problem Description

Changing the domain number in an 8.5 network by issuing the cnfdmn command will cause database corruption, resulting in loss of connection and topology information. There will be undefined corruption of the database that may result in nodal removal and subsequent deleted connections. It may also result only in corruption to the SV+ link which can be recovered.

Background

The cnfdmn command is used to change the domain number of a structured network. For customers running a structured network at switch software release 7.2.x or 7.4.x, the cnfdmn command can be used to change the domain number without experiencing the database corruption problem. For customers running in a structured network environment, the cnfdmn command should not be used after upgrading to any 8.5 release other than 8.5.09.

Problem Symptoms

For customers not running a structured network, the cnfdmn command should not be used!

For customers running in a structured network environment, prior to upgrading, the domains must be separated and numbered to the default value of one by issuing the command cnfdmn 1. This problem will be fixed in 8.5.09; however, it is still recommended that customers change the domain number while at 7.2 or 7.4 before upgrading to 8.5.x. Release 8.5.09 will be available in December 1998.

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: