Cisco IE 2000 Especificaciones Pagina 59
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Valorado. / 5. Basado en revisión del cliente
4-7
System Management Software Configuration Guide for Cisco IE 2000U and Connected Grid Switches
Chapter 4 Administering the Switch
Configuring NTP
Configuring NTP
You can manage the system time and date on your switch using automatic configuration, such as the
Network Time Protocol (NTP), or manual configuration methods. For manual configuration, see the
“Configuring Time and Date Manually” section on page 4-15.
This section includes the following topics:
• Configuring NTP Authentication, page 4-7
• Configuring NTP Associations, page 4-8
• Configuring NTP Broadcast Service, page 4-10
• Configuring NTP Access Restrictions, page 4-11
• Configuring the Source IP Address for NTP Packets, page 4-14
Configuring NTP Authentication
Follow this procedure to authenticate the associations (communications between devices running NTP
that provide for accurate timekeeping) with other devices for security purposes.
BEFORE YOU BEGIN
This procedure must be coordinated with the administrator of the NTP server; the information you
configure in this procedure must be matched by the servers used by the switch to synchronize its time to
the NTP server.
DETAILED STEPS
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
ntp authenticate Enable the NTP authentication feature, which is disabled by
default.
Step 3
ntp authentication-key number md5
value
Define the authentication keys. By default, none are
defined.
• For number, specify a key number. The range is 1 to
4294967295.
• md5 specifies that message authentication support is
provided by using the message digest algorithm 5
(MD5).
• For value, enter an arbitrary string of up to eight
characters for the key.
The switch does not synchronize to a device unless both
have one of these authentication keys, and the key number
is specified by the ntp trusted-key key-number command.
- System Management Software 1
- CONTENTS 3
- 10 Configuring CDP 10-1 8
- 12 Configuring RMON 12-1 10
- 14 Configuring SNMP 14-1 11
- Contents 12
- A Supported MIBs A-1 14
- Overview 15
- Chapter 1 Overview 16
- Features 16
- Switch Boot Optimization 17
- MAC Address Table 17
- Switch Alarms 18
- SDM Templates 18
- Smartports Macros 18
- LLDP and LLDP-MED 19
- Port-Based Traffic Control 19
- SPAN and RSPAN 20
- System Message Logging 20
- Cisco IOS IP SLAs 21
- Embedded Event Manager 21
- Ethernet OAM, CFM, and E-LMI 22
- Online Diagnostics 22
- Supported MIBs 22
- Boot Process 24
- DHCP-Based Autoconfiguration 25
- DHCP Image Upgrade 26
- TFTP Server 27
- DNS Server 27
- Relay Device 28
- Obtaining Configuration Files 28
- Example Configuration 29
- Assigning Switch Information 33
- Configuring the Client 36
- Booting Manually 40
- First Reload 49
- Administering the Switch 53
- System Clock 54
- Network Time Protocol 54
- Configuring NTP 59
- Configuring NTP Associations 60
- Setting the System Clock 67
- Configuring DNS 72
- Creating a Banner 73
- Configuring a Login Banner 75
- MOTD Banner 88
- Configuring the Switch Alarms 91
- Port Status Monitoring Alarms 92
- Triggering Alarm Options 93
- Configuring External Alarms 94
- Configuring Switch Alarms 97
- Configuring Alarm Profiles 99
- BEFORE YOU BEGIN 100
- DETAILED STEPS 100
- Verifying Configuration 102
- Configuration Example 102
- Related Documents 104
- Feature History 104
- Configuring SDM Templates 105
- • Indirect IPv4 routes – 4 K 106
- Prerequisites 107
- Guidelines and Limitations 108
- Default Settings 108
- Configuring Smartports Macros 113
- Creating Smartports Macros 116
- Applying Smartports Macros 117
- Configuring LLDP and LLDP-MED 121
- LLDP-MED 122
- Disabling LLDP 125
- Enabling LLDP 125
- Configuring LLDP-MED TLVs 127
- Disabling a TLV 128
- Enabling a TLV 128
- Storm Control 134
- Protected Ports 135
- Port Blocking 135
- Port Security 135
- Secure MAC Addresses 136
- Security Violations 136
- Configuring Storm Control 140
- Configuring Protected Ports 142
- Configuring Port Blocking 143
- Configuring Port Security 144
- Configuring CDP 155
- Disabling and Enabling CDP 157
- Enabling CDP 158
- Disabling CDP on an Interface 158
- Enabling CDP on an Interface 159
- Configuring SPAN and RSPAN 163
- Local SPAN 164
- Remote SPAN 164
- SPAN Sessions 165
- Monitored Traffic 166
- Source Ports 167
- Source VLANs 168
- VLAN Filtering 168
- Destination Port 168
- RSPAN VLAN 169
- OL-29255-03 174
- Specifying VLANs to Filter 178
- Configuring RSPAN 179
- Configuring RMON 191
- System Log Message Format 200
- Disabling Message Logging 202
- Synchronizing Log Messages 204
- Verifying the Configuration 214
- Configuring SNMP 217
- SNMP Versions 218
- SNMP Manager Functions 219
- SNMP Agent Functions 220
- SNMP Community Strings 220
- SNMP Notifications 221
- Table 14-3 ifIndex Values 222
- Configuring Community Strings 225
- Event Detectors 244
- CFM Domain 260
- CFM Messages 263
- SNMP Traps and Fault Alarms 263
- Configuration Error List 263
- CFM Version Interoperability 264
- IP SLAs Support for CFM 264
- Configuring Ethernet CFM 265
- Configuring the CFM Domain 266
- Configuring Static Remote MEP 271
- Configuring a Port MEP 273
- Configuring SNMP Traps 275
- Configuring Fault Alarms 275
- Y.1731 Terminology 282
- Alarm Indication Signals 283
- Ethernet Locked Signal 284
- Multicast Ethernet Loopback 284
- Default Y.1731 Configuration 285
- Configuring ETH-AIS 285
- Configuring ETH-LCK 287
- Hold-time: 100 Minutes 292
- Configuring Ethernet OAM 293
- Enabling Ethernet Loopback 305
- Information About E-LMI 309
- Configuring E-LMI 310
- Configuring the OAM Manager 311
- Enabling E-LMI 314
- Enabling Ethernet OAM 319
- Scheduling Online Diagnostics 325
- Chapter A Supported MIBs 334
- MIB List 334
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Iei-integration UPC-V315-NM70 Handbücher
Bedienungsanleitungen und Benutzerhandbücher für Computers Iei-integration UPC-V315-NM70.
Wir stellen 1 PDF-Handbücher Iei-integration UPC-V315-NM70 zum kostenlosen herunterladen nach Dokumenttypen zur Verfügung Bedienungsanleitung
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Inhaltsverzeichnis
Page ix
9
1.1 Overview
13
1.3 Features
14
Page 12
23
Page 13
24
2 Unpacking
25
Page 22
33
Page 23
34
Page 30
41
Page 33
44
Page 34
45
Page 37
48
Page 39
50
Page 40
51
Page 41
52
4 BIOS
61
4.2 Ma in
64
4.3 Advanced
65
Page 55
66
Page 57
68
4.4 Chips et
81
Page 75
86
DEFAULT
87
Page 78
89
4.5 Boot
90
4.6 Security
93
Page 84
95
Page 86
97
Page 87
98
Page 89
100
NOTE:
100
Page 94
105
Page 95
106
Page 96
107
Page 98
109
Page 99
110
Page 101
112
Page 103
114
Page 104
115
Page 105
116
CAUTION:
116
Page 106
117
Page 107
118
Page 108
119
Page 109
120
Page 111
122
Page 112
123
Page 115
126
Page 116
127
Page 117
128
B.5.4 Manual
128
Page 118
129
Page 119
130
Page 120
131
Page 121
132
Page 124
135
Page 128
139
Page 132
143
Dis clos ure
145
Page 135
146
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