ZyXEL Communications ES-2108, ES-2108-G manual 12

		ES-2108/ES-2108-G User’s Guide
Chapter 20
Differentiated Services ........................................................................................		107
20.1	Overview ........................................................................................................	107
20.1.1 DSCP and Per-Hop Behavior ..............................................................		107
20.1.2 DiffServ Network Example ..................................................................		107
20.2	Activating DiffServ .......................................................................................	108
20.3	DSCP-to-IEEE802.1p Priority Mapping ....................................................	109
20.3.1 Configuring DSCP Settings ..................................................................		109
Chapter 21
Maintenance ..........................................................................................................		111
21.1	The Maintenance Screen ..............................................................................	111
21.2	Firmware Upgrade ......................................................................................	112
21.3	Restore a Configuration File ........................................................................	112
21.4	Backing Up a Configuration File ..................................................................	113
21.5	Load Factory Defaults .................................................................................	113
21.6	Reboot System ............................................................................................	114
21.7 FTP Command Line ......................................................................................		114
21.7.1 Filename Conventions ........................................................................		114
	21.7.1.1 Example FTP Commands ..........................................................	115
21.7.2 FTP Command Line Procedure ..........................................................		115
21.7.3 GUI-based FTP Clients ........................................................................		116
21.7.4 FTP Restrictions ..................................................................................		116
Chapter 22
Access Control......................................................................................................		117
22.1	Overview ......................................................................................................	117
22.2	The Access Control Main Screen ..................................................................	117
22.3 About SNMP ................................................................................................		118
22.3.1 Supported MIBs .................................................................................		119
22.3.2 SNMP Traps .......................................................................................		119
22.3.3 Configuring SNMP ..............................................................................		119
22.4	Setting Up Login Accounts .........................................................................	120
22.5	SSH Overview ...............................................................................................	121
22.6 How SSH works .............................................................................................		122
22.7	SSH Implementation on the Switch ...............................................................	123
22.7.1 Requirements for Using SSH ...............................................................		123
22.7.2 SSH Login Example .............................................................................		123
22.8	Introduction to HTTPS ...................................................................................	124
22.9 HTTPS Example ............................................................................................		125
22.9.1 Internet Explorer Warning Messages ...................................................		125
22.9.2 Netscape Navigator Warning Messages ..............................................		126
22.9.3 The Main Screen ..................................................................................		127

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