Reference Guide

Configuring Privilege Levels................................................................................................................................... 53
Creating a Custom Privilege Level....................................................................................................................53
Removing a Command from EXEC Mode..........................................................................................................53
Moving a Command from EXEC Privilege Mode to EXEC Mode...................................................................... 53
Allowing Access to CONFIGURATION Mode Commands................................................................................54
Allowing Access to the Following Modes........................................................................................................54
Applying a Privilege Level to a Username........................................................................................................56
Applying a Privilege Level to a Terminal Line.................................................................................................. 56
Configuring Logging................................................................................................................................................56
Log Messages in the Internal Buffer...................................................................................................................... 56
Configuration Task List for System Log Management..................................................................................... 57
Disabling System Logging.......................................................................................................................................57
Sending System Messages to a Syslog Server......................................................................................................57
Configuring a UNIX System as a Syslog Server...............................................................................................57
Changing System Logging Settings........................................................................................................................ 58
Display the Logging Buffer and the Logging Configuration....................................................................................58
Configuring a UNIX Logging Facility Level..............................................................................................................59
Synchronizing Log Messages.................................................................................................................................60
Enabling Timestamp on Syslog Messages............................................................................................................. 61
File Transfer Services.............................................................................................................................................61
Configuration Task List for File Transfer Services........................................................................................... 61
Enabling the FTP Server...................................................................................................................................61
Configuring FTP Server Parameters.................................................................................................................62
Configuring FTP Client Parameters.................................................................................................................. 62
Terminal Lines.........................................................................................................................................................63
Denying and Permitting Access to a Terminal Line......................................................................................... 63
Configuring Login Authentication for Terminal Lines.......................................................................................64
Setting Time Out of EXEC Privilege Mode.............................................................................................................. 65
Using Telnet to get to Another Network Device.....................................................................................................65
Lock CONFIGURATION Mode.................................................................................................................................66
Viewing the Configuration Lock Status............................................................................................................66
Recovering from a Forgotten Password on the S4820T System.............................................................................67
Recovering from a Forgotten Enable Password on the S4820T....................................................................... 67
Recovering from a Failed Start on the S4820T System...........................................................................................68
5 802.1ag........................................................................................................................................ 69
Ethernet CFM.......................................................................................................................................................... 69
Maintenance Domains............................................................................................................................................70
Maintenance Points................................................................................................................................................70
Maintenance End Points.........................................................................................................................................71
Implementation Information................................................................................................................................... 72
Configuring the CFM............................................................................................................................................... 72