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Dell Force10 MXL Blade MXL 10/40GbE Switch IO Module FTOS Command Line Referen - Page 638

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www.dell.com | support.dell.com ntp authentication-key Specify a key for authenticating the NTP server. Syntax ntp authentication-key number md5 [0 | 7] key Parameters number md5 0 7 key Specify a number for the authentication key. Range: 1 to 4294967295. This number must be the same as the number parameter configured in the ntp trusted-key command. Specify that the authentication key will be encrypted using MD5 encryption algorithm. Specify that authentication key will be entered in an unencrypted format (default). Specify that the authentication key will be entered in DES encrypted format. Enter the authentication key in the previously specified format. Defaults NTP authentication is not configured by default. If you do not specify the option [0 | 7], 0 is selected by default. Command Modes CONFIGURATION Command History Usage Information Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module After configuring the ntp authentication-key command, to complete NTP authentication, configure the ntp trusted-key command. FTOS versions 8.2.1.0 and later use an encryption algorithm to store the authentication key that is different from previous FTOS versions; beginning in version 8.2.1.0, FTOS uses DES encryption to store the key in the startup-config when you enter the command ntp authentication-key. Therefore, if your system boots with a startup-configuration from an FTOS versions prior to 8.2.1.0 in which you have configured ntp authentication-key, the system cannot correctly decrypt the key, and cannot authenticate NTP packets. In this case you must re-enter this command and save the running-config to the startup-config. Related Commands ntp authenticate ntp trusted-key Enables NTP authentication. Configures a trusted key. ntp broadcast client Set up the interface to receive NTP broadcasts from an NTP server. Syntax ntp broadcast client Defaults To disable broadcast, use the no ntp broadcast client command. Disabled Command Modes Command History INTERFACE Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module 638 | System Time and Date

Section	Page
About this Guide	9
Objectives	9
Audience	9
Conventions	9
Information Symbols	10
Related Documents	10
CLI Basics	11
Accessing the Command Line	11
Multiple Configuration Users	12
Navigating the Command Line Interface	12
Obtaining Help	13
Using the Keyword no	15
Filtering show Commands	15
Displaying All Output	16
Filtering Command Output Multiple Times	16
Command Modes	16
EXEC Mode	16
EXEC Privilege Mode	17
CONFIGURATION Mode	17
INTERFACE Mode	17
LINE Mode	18
MAC ACCESS LIST Mode	18
IP ACCESS LIST Mode	18
ROUTE-MAP Mode	18
PREFIX-LIST Mode	19
SPANNING TREE Mode	19
Per-VLAN SPANNING TREE Plus Mode	19
RAPID SPANNING TREE Mode	19
MULTIPLE SPANNING TREE Mode	20
PROTOCOL GVRP Mode	20
ROUTER OSPF Mode	20
ROUTER RIP Mode	20
File Management	21
Overview	21
Basic File Management Commands	21
Control and Monitoring	37
Commands	37
Important Points to Remember	67
u-Boot	81
Overview	81
Commands	81
Access Control Lists (ACL)	91
Overview	91
Commands Common to all ACL Types	91
Common IP ACL Commands	94
Standard IP ACL Commands	98
Extended IP ACL Commands	102
Common MAC Access List Commands	117
Standard MAC ACL Commands	120
Extended MAC ACL Commands	123
IP Prefix List Commands	127
Route Map Commands	132
Bare Metal Provisioning	143
Overview	143
Commands	143
Content Addressable Memory (CAM)	147
Overview	147
CAM Profile Commands	147
Important Points to Remember	147
Data Center Bridging	153
Overview	153
DCB Command	153
PFC Commands	153
ETS Commands	154
DCBX Commands	154
Dynamic Host Configuration Protocol (DHCP)	187
Overview	187
Commands to Configure the System to be a DHCP Server	187
Commands to Configure the System to be a DHCP Client	194
Other Commands supported by DHCP Client	195
Commands to Configure Secure DHCP	198
FIP Snooping	205
Overview	205
GARP VLAN Registration (GVRP)	217
Commands	217
Important Points to Remember	218
Internet Group Management Protocol (IGMP)	227
IGMP Snooping Commands	227
Important Points to Remember for IGMP Snooping	227
Important Points to Remember for IGMP Querier	228
Interfaces	235
Overview	235
Basic Interface Commands	235
Port Channel Commands	277
Time Domain Reflectometer (TDR)	284
Important Points to Remember	284
UDP Broadcast	286
Important Points to Remember	286
IPv4 Routing	289
Commands	289
iSCSI Optimization	323
Overview	323
Link Aggregation Control Protocol (LACP)	331
Overview	331
Commands	331
Layer 2	337
Overview	337
MAC Addressing Commands	337
Virtual LAN (VLAN) Commands	347
Link Layer Discovery Protocol (LLDP)	355
Overview	355
Commands	355
LLDP-MED Commands	363
Multiple Spanning Tree Protocol (MSTP)	371
Overview	371
Commands	371
Open Shortest Path First (OSPFv2)	385
Overview	385
OSPFv2 Commands	385
Port Monitoring	433
Overview	433
Commands	433
Important Points to Remember	433
Private VLAN (PVLAN)	439
Commands	439
Private VLAN Concepts	440
Per-VLAN Spanning Tree Plus (PVST+)	449
Overview	449
Commands	449
Quality of Service (QoS)	461
Overview	461
Global Configuration Commands	461
Per-Port QoS Commands	462
Policy-Based QoS Commands	467
Routing Information Protocol (RIP)	491
Overview	491
Commands	491
Remote Monitoring (RMON)	507
Overview	507
Commands	507
Rapid Spanning Tree Protocol (RSTP)	519
Overview	519
Commands	519
Security	531
Commands	531
AAA Accounting Commands	531
Authorization and Privilege Commands	534
Authentication and Password Commands	537
RADIUS Commands	548
TACACS+ Commands	552
SSH Server and SCP Commands	555
Secure DHCP Commands	566
sFlow	571
Overview	571
Important Points to Remember	571
Commands	572
Simple Network Management Protocol (SNMP) and Syslog	579
Overview	579
SNMP Commands	579
Important Points to Remember	580
Syslog Commands	594
Storm Control	605
Overview	605
Commands	605
Important Points to Remember	605
Stacking Commands	611
Overview	611
Commands	611
Spanning Tree Protocol (STP)	621
Overview	621
System Time and Date	631
Overview	631
Commands	631
Uplink Failure Detection (UFD)	645
Overview	645
Commands	645
VLAN Stacking	655
Overview	655
Important Points to Remember	655
Virtual Router Redundancy Protocol (VRRP)	663
IPv4 VRRP Commands	663
Debugging and Diagnostics	675
Offline Diagnostic Commands	675
Important Points to Remember	675
Buffer Tuning Commands	677
Hardware Commands	682
Internet Control Message Protocol (ICMP) Message Types	695
SNMP Traps	697
Index	701

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638

System Time and Date

www.dell.com | support.dell.com

ntp authentication-key

Specify a key for authenticating the NTP server.

Syntax

ntp authentication-key

number

md5

[

]

key

Parameters

Defaults

NTP authentication is not configured by default. If you do not specify the option [

], 0 is selected by

default.

Command Modes

CONFIGURATION

Command

History

Usage

Information

After configuring the

ntp authentication-key

command, to complete NTP authentication, configure the

ntp trusted-key

command.

FTOS versions 8.2.1.0 and later use an encryption algorithm to store the authentication key that is

different from previous FTOS versions; beginning in version 8.2.1.0, FTOS uses DES encryption to

store the key in the startup-config when you enter the command

ntp authentication-key

. Therefore, if

your system boots with a startup-configuration from an FTOS versions prior to 8.2.1.0 in which you

have configured

ntp authentication-key

, the system cannot correctly decrypt the key, and cannot

authenticate NTP packets. In this case you must re-enter this command and save the running-config to

the startup-config.

Commands

ntp broadcast client

Set up the interface to receive NTP broadcasts from an NTP server.

Syntax

ntp broadcast client

To disable broadcast, use the

no ntp broadcast client

command.

Defaults

Disabled

Command Modes

INTERFACE

Command

History

number

Specify a number for the authentication key.

Range: 1 to 4294967295.

This number must be the same as the number parameter configured in the

ntp trusted-key

command.

md5

Specify that the authentication key will be encrypted using MD5 encryption algorithm.

Specify that authentication key will be entered in an unencrypted format (default).

Specify that the authentication key will be entered in DES encrypted format.

key

Enter the authentication key in the previously specified format.

Version 8.3.16.1

Introduced on MXL 10/40GbE Switch IO Module

ntp authenticate

Enables NTP authentication.

ntp trusted-key

Configures a trusted key.

Version 8.3.16.1

Introduced on MXL 10/40GbE Switch IO Module