Catalyst 2950 Desktop Switch System Message Guide, 12.1(11)YJ4
System Message Overview
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System Message Overview

Table Of Contents

System Message Overview

How to Read System Messages

Error Message Traceback Reports


System Message Overview


This guide describes system messages for the Catalyst 2950 switch. During operation, the system software sends these messages to the console (and, optionally, to a logging server on another system). Not all system messages indicate problems with your system. Some messages are purely informational, whereas others can help diagnose problems with communications lines, internal hardware, or the system software. This guide also includes error messages that appear when the system fails.

This chapter contains these sections:

How to Read System Messages

Error Message Traceback Reports

How to Read System Messages

System messages begin with a percent sign (%) and are structured as follows:

%FACILITY-SEVERITY-MNEMONIC: Message-text

FACILITY is a code consisting of two or more uppercase letters that show the facility to which the message refers. A facility can be a hardware device, a protocol, or a module of the system software. Table 1-1 lists the system facility codes.

Table 1-1 Facility Codes 

Facility Code
Description
Location

CMP

Cluster Membership Protocol

"CMP Messages" section

DOT1X_MOD

802.1X authentication

"DOT1X_MOD Messages" section

DTP

Dynamic Trunking Protocol

"DTP Messages" section

EC

EtherChannel

"EC Messages" section

ENVIRONMENT

Environment

"ENVIRONMENT Messages" section

ETHCNTR

Ethernet controller

"ETHCNTR Messages" section

GBIC

Gigabit Interface Converter (GBIC) module identification and validation

"GBIC Messages" section

GBIC_1000BASET

1000BASE-T GBIC module

"GBIC Messages" section

GBIC_SECURITY

GBIC module security

"GBIC_SECURITY Messages" section

GIGASTACK

GigaStack GBIC module

"GIGASTACK Messages" section

HWMATM_MOD

Hardware MAC address table manager

"HWMATM_MOD Messages" section

LRE_CPE

Long-Reach Ethernet (LRE) customer premises equipment (CPE)

LRE_CPE Messages

LRE_LINK

LRE link

LRE_LINK Messages

PLATFORM_CAT2950

Application-specific integrated circuit (ASIC)

"PLATFORM_CAT2950 Messages" section

PLATFORM_CATALYST2950

Low-level platform messages

"PLATFORM_CATALYST2950 Messages" section

PM

Port manager

"PM Messages" section

SPAN

Switched Port Analyzer (SPAN)

"SPAN Messages" section

SPANTREE

Spanning tree

"SPANTREE Messages" section

SPANTREE_FAST

Spanning-tree fast convergence

"SPANTREE_FAST Messages" section

SPANTREE_VLAN_SW

Spanning-tree VLAN switch

"SPANTREE_VLAN_SWITCH Messages" section

STORM_CONTROL

Storm control

"STORM_CONTROL Messages" section

SW_VLAN

VLAN manager

"SW_VLAN Messages" section

UDLD

UniDirectional Link Detection (UDLD)

"UDLD Messages" section

UFAST_MCAST_SW

UplinkFast multicast software

"UFAST_MCAST_SW Messages" section


SEVERITY is a single-digit code from 0 to 7 that reflects the severity of the condition. The lower the number, the more serious the situation. Table 1-2 lists the message severity levels.

MNEMONIC is a code that uniquely identifies the message.

Table 1-2 Message Severity Levels 

Severity Level
Description

0 - emergency

System is unusable.

1 - alert

Immediate action required.

2 - critical

Critical condition.

3 - error

Error condition.

4 - warning

Warning condition.

5 - notification

Normal but significant condition.

6 - informational

Informational message only.

7 - debugging

Message that appears during debugging only.


Message-text is a text string describing the condition. This portion of the message sometimes contains detailed information about the event, including terminal port numbers, network addresses, or addresses that correspond to locations in the system memory address space. Because the information in these variable fields changes from message to message, it is represented here by short strings enclosed in square brackets ([ ]). A decimal number, for example, is represented as [dec]. Table 1-3 lists the variable fields in messages.

Table 1-3 Representation of Variable Fields in Messages 

Representation
Type of Information

[dec]

Decimal integer

[char]

Single character

[chars]

Character string

[enet]

Ethernet address (for example, 0000.FEED.00C0)

[hex]

Hexadecimal integer

[inet]

Internet address


This is a sample system message:

%EC-5-UNBUNDLE:Interface Gi0/9 left the port-channel Po2

The messages in "Message and Recovery Procedures," are described in alphabetical order by facility code with the most severe (lowest number) errors described first.

Error Message Traceback Reports

Some messages describe internal errors and contain traceback information. This information is very important and should be included when you report a problem to your technical support representative.

This sample message includes traceback information:

-Process= "Exec", level= 0, pid= 17
-Traceback= 1A82 1AB4 6378 A072 1054 1860