Cisco 3110 Message Manual page 101

Chapter 2 Message and Recovery Procedures
Error Message SPANTREE-3-BAD_PORTNUM_SIZE: Rejected an attempt to set the port
number field size to [dec] bits (valid range is [dec] to [dec] bits).
Explanation
bits than are possible. The spanning-tree port identifier is a 16-bit field, which is divided evenly
between the port priority and port number, with each subfield being 8 bits. This allows the port
number field to represent port numbers between 1 and 255. However, on systems with more than
255 ports, the size of port number portion of the port ID must be increased to support the number of
ports. This is performed by the spanning-tree subsystem at system initialization because the
maximum number of ports on a particular platform will not change. This error occurs because of an
error in the platform-specific code, which causes it to request more or less bits than are possible.
The first [dec] is the number of bits for the port number, and the second and third [dec] describe the
valid range.
Recommended Action
Research and attempt to resolve the error by using the Output Interpreter. Enter the show version
user EXEC command to gather data that might help identify the nature of the error. Use the Bug
Toolkit to look for similar reported problems. If you still require assistance, contact IBM technical
support and provide the representative with the gathered information. For more information about
the online tools and about contacting IBM, see the
page
Error Message SPANTREE-3-PORT_SELF_LOOPED: [chars] disabled.- received BPDU src mac
([enet]) same as that of interface.
Explanation
the one assigned to the listed interface. This means that a port might be looped back to itself,
possibly because of an installed diagnostic cable. The interface will be administratively shut down.
[chars] is the interface that received the BPDU, and [enet] is the source MAC address.
Recommended Action
When the problem is resolved, re-enable the interface by entering the no shutdown interface
configuration command.
Error Message SPANTREE-3-PRESTD_NEIGH: pre-standard MST interaction not configured
([chars]).
Explanation
(MST) BPDU on an interface that is not configured to send prestandard MST BPDUs. The switch
automatically adjusts its configuration on the interface and start sending prestandard BPDUs.
However, the switch does not automatically detect all prestandard neighbors, and we recommend
that you configure the interface to send prestandard MST BPDUs by using the spanning-tree mst
pre-standard interface configuration command. This warning message only appears once. [chars]
is the interface.
Recommended Action
all the interfaces to which other switches running Cisco's prestandard MST version are connected.
We recommend that you migrate all the switches in the network to the IEEE MST standard version.
OL-12191-01
An error occurred in the platform-specific code that caused it to request more or less
Copy the message exactly as it appears on the console or in the system log.
1-6.
A BPDU was received on the listed interface with a source MAC address that matches
Check the interface configuration and any cable connected to the interface.
The message means that the switch has received a prestandard multiple spanning-tree
Use the spanning-tree mst pre-standard interface configuration command on
Cisco Catalyst Switch Module 3110 and 3012 for IBM BladeCenter System Message Guide
"Error Message Traceback Reports" section on
SPANTREE Messages
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