Cisco 3750 System Message Guide - Page 16

Severity Level, Description, Representation, Type of Information, Table 1-2, Message Severity Levels - 48

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How to Read System Messages Chapter 1 System Message Overview Table 1-2 Message Severity Levels Severity Level 0 - emergency 1 - alert 2 - critical 3 - error 4 - warning 5 - notification 6 - informational 7 - debugging Description System is unusable. Immediate action required. Critical condition. Error condition. Warning condition. Normal but significant condition. Informational message only. Message that appears during debugging only. • MNEMONIC is a code that uniquely identifies the message. • 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 [dec] [char] [chars] [enet] [hex] [inet] Type of Information Decimal integer Single character Character string Ethernet address (for example, 0000.FEED.00C0) Hexadecimal integer Internet address All syslog messages generated by a switch other than the master switch are displayed ending with (Switch-x) where Switch-x is the number of the stack member generating the message. Syslog messages generated by the master switch are displayed with no hostname string. This example shows a partial switch system message for a stack master and a stack member switch (hostname Switch-2): 00:00:46: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up 00:00:47: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/1, changed state to up 00:00:47: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/2, changed state to up 00:00:48: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down 00:00:48: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/1, changed state to down 2 *Mar 1 18:46:11: %SYS-5-CONFIG_I: Configured from console by vty2 (10.34.195.36) 18:47:02: %SYS-5-CONFIG_I: Configured from console by vty2 (10.34.195.36) *Mar 1 18:48:50.483 UTC: %SYS-5-CONFIG_I: Configured from console by vty2 (10.34.195.36) 00:00:46: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up (Switch-2) 00:00:47: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/1, changed state to up (Switch-2) Catalyst 3750 Switch System Message Guide 1-4 78-16184-04

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1-4
Catalyst 3750 Switch System Message Guide
78-16184-04
Chapter 1
System Message Overview
How to Read System Messages
•
MNEMONIC is a code that uniquely identifies the message.
•
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.
All syslog messages generated by a switch other than the master switch are displayed ending with
(
Switch-x
) where
Switch-x
is the number of the stack member generating the message. Syslog messages
generated by the master switch are displayed with no hostname string.
This example shows a partial switch system message for a stack master and a stack member switch
(hostname
Switch-2
):
00:00:46: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up
00:00:47: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/1, changed state to up
00:00:47: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/2, changed state to up
00:00:48: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
00:00:48: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/1, changed
state to down 2
*Mar
1 18:46:11: %SYS-5-CONFIG_I: Configured from console by vty2 (10.34.195.36)
18:47:02: %SYS-5-CONFIG_I: Configured from console by vty2 (10.34.195.36)
*Mar
1 18:48:50.483 UTC: %SYS-5-CONFIG_I: Configured from console by vty2 (10.34.195.36)
00:00:46: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up (Switch-2)
00:00:47: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/1, changed state to up (Switch-2)
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.
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