Chapter 2 System Message Overview

How to Read System Messages

Table 2-1

Facility Codes

 

 

 

 

 

 

 

 

 

Facility Code

 

Description

Location

 

 

 

 

 

 

ACLMGR

 

ACL manager

“ACLMGR Messages” section on page 3-3

 

 

 

 

 

 

AUTOQOS

 

Automatic quality of service

“AUTOQOS Messages” section on page 3-8

 

 

 

 

 

(auto-QoS) (only Catalyst 3550

 

 

 

 

 

 

 

switches)

 

 

 

 

 

 

 

BACKUP_INTERFACE

Flex Links

“BACKUP_INTERFACE Messages” section on

 

 

 

 

 

 

page 3-8

 

 

 

 

 

BADTRANSCEIVER

Defective transceiver messages (only

“BADTRANSCEIVER Messages” section on

 

 

 

 

 

3750 and 2975 switches)

page 3-9

 

 

 

 

 

 

BSPATCH

 

Boot loader patch

“BSPATCH Messages” section on page 3-9

 

 

 

 

 

 

CFGMGR

 

Configuration manager (only Catalyst

“CFGMGR Messages” section on page 3-10

 

 

 

 

 

3750 and 2975 switches)

 

 

 

 

 

 

 

 

CMP

 

Cluster Membership Protocol

“CMP Messages” section on page 3-13

 

 

 

 

 

DHCP_SNOOPING

DHCP snooping

“DHCP_SNOOPING Messages” section on

 

 

 

 

 

 

page 3-14

 

 

 

 

 

DHCP_SNOOPING_CAT3550

DHCP snooping (only Catalyst 3550

“DHCP_SNOOPING_CAT3550 Messages”

 

 

 

 

 

switches)

section on page 3-17

 

 

 

 

 

DOT1Q_TUNNELLING

IEEE 802.1Q tunneling (only

“DOT1Q_TUNNELLING Messages” section on

 

 

 

 

 

Catalyst 3550 switches)

page 3-18

 

 

 

 

 

 

DOT1X

 

IEEE 802.1x

“DOT1X Messages” section on page 3-18

 

 

 

 

 

DOT1X_SWITCH

IEEE 802.1x for switches

“DOT1X_SWITCH Messages” section on

 

 

 

 

 

 

page 3-19

 

 

 

 

 

 

DTP

 

Dynamic Trunking Protocol

“DTP Messages” section on page 3-23

 

 

 

 

 

 

DWL

 

Down-when-looped

“DWL Messages” section on page 3-24

 

 

 

 

 

 

EC

 

EtherChannel

“EC Messages” section on page 3-25

 

 

 

 

 

ENVIRONMENT

Environment (only Catalyst 3550

“ENVIRONMENT Messages” section on

 

 

 

 

 

switches)

page 3-29

 

 

 

 

 

 

ETHCNTR

 

Ethernet Controller

“ETHCNTR Messages” section on page 3-30

 

 

 

 

 

EXPRESS_SETUP

Express Setup

“EXPRESS_SETUP Messages” section on

 

 

 

 

 

 

page 3-34

 

 

 

 

 

 

FM

 

Feature manager (only Catalyst 3550

“FM Messages” section on page 3-35

 

 

 

 

 

switches)

 

 

 

 

 

 

 

FRNTEND_CTRLR

Front-end controller (only

“FRNTEND_CTRLR Messages” section on

 

 

 

 

 

Catalyst 3750 and 2975 switches)

page 3-44

 

 

 

 

 

 

GBIC

 

Gigabit Interface Converter (GBIC)

“GBIC Messages” section on page 3-45

 

 

 

 

 

module identification and validation

 

 

 

 

 

 

 

(only Catalyst 3550 switches)

 

 

 

 

 

 

 

GBIC_SECURITY

GBIC module and small form-factor

“GBIC_SECURITY Messages” section on

 

 

 

 

 

pluggable (SFP) module security

page 3-48

 

 

 

 

 

GBIC_SECURITY_CRYPT

GBIC and SFP module security

“GBIC_SECURITY_CRYPT Messages” section

 

 

 

 

 

 

on page 3-51

 

 

 

 

 

 

 

 

 

 

 

 

Catalyst 3750, 3560, 3550, 2975, 2970, and 2960 Switch System Message Guide

 

 

 

 

 

 

 

 

 

2-2

 

 

 

 

OL-8551-04

 

 

 

 

 

 

 

Page 12
Image 12
Cisco Systems 3750 ACL manager, Automatic quality of service, Auto-QoS only Catalyst Switches, Flex Links, switches, Ieee

3750 specifications

The Cisco Systems 3750 series is a family of enterprise-class stackable switches that were designed to provide high-performance networking solutions for organizations requiring robust management features, security, and scalability. Known for their reliability and advanced capabilities, the 3750 series is particularly aimed at accommodating the demands of LAN environments in organizations ranging from small businesses to large enterprises.

One of the defining features of the Cisco 3750 series is its StackWise technology. This innovative feature enables the stacking of up to nine switches together, allowing them to function as a single logical unit. This results in simplified management, higher redundancy, and increased scalability. The StackWise technology allows for seamless failover and enhanced bandwidth between the stacked switches.

In terms of performance, the 3750 series supports Layer 2 and Layer 3 switching, offering routing capabilities to handle both traditional and modern network demands. It is equipped with advanced Quality of Service (QoS) features, ensuring that critical applications such as voice and video are prioritized for optimal performance.

The Cisco 3750 also features extensive security capabilities. It incorporates features such as IEEE 802.1X authentication, DHCP snooping, and dynamic ARP inspection to protect against unauthorized access and various network attacks. These enhancements help maintain data integrity and secure communications across the network.

Another noteworthy characteristic of the 3750 series is its support for Power over Ethernet (PoE). PoE allows for the delivery of power over Ethernet cables to connected devices, such as IP phones and wireless access points, facilitating simpler installations and reducing the need for additional power outlets.

The Cisco 3750 series also provides a comprehensive set of management tools. With features like Cisco's Embedded Event Manager (EEM) and extensive SNMP support, network administrators can efficiently monitor and manage network performance, troubleshoot issues, and maintain high availability.

Additionally, the series is compatible with Cisco's IOS software, which provides a rich set of features, including advanced routing protocols, multicast support, and extensive security options, further enhancing the functionality and versatility of the switches.

Overall, the Cisco Systems 3750 series stands out for its stackable design, high-performance features, security capabilities, and management tools, making it a popular choice for organizations looking for dependable and scalable networking solutions.