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Catalyst Supervisor Engine 32 PISA Cisco IOS System Message Guide, Release 12.2ZY
OL-11469-02
Chapter 1 System Message Overview
System Message Structure
• SEVERITY level
The severity level 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 code
The MNEMONIC code uniquely identifies the error message.
• Message-text
Message-text is a text string that describes the condition. The text string 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 variable fields change from
message to message, they are 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.
TRANGE Time-range
TRANSCEIVER Transceiver
UNICAST_FLOOD Unicast Flooding
URLF URL Filtering
VPN_HW VPN Hardware Accelerator for IPSec
VPNSM Virtual Private Network Services Module
VPNSMIOS VPNSM Crypto Connection
VSEC VACL Logging
WCCP Web Cache Communication Protocol
WiSM Wireless Service Module
Table 1-1 Facility Codes (continued)
Code Facility
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
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