Command Line Interface Guide
Page 7
... 119 login-banner 120 motd-banner 121 show banner 121 8 Clock 123 clock set 123 clock source 123 clock timezone 124 clock summer-time 125 sntp authentication-key 126 sntp authenticate 127 sntp trusted-key 128 sntp client poll timer 129 sntp broadcast client enable 129 Contents 7
... 119 login-banner 120 motd-banner 121 show banner 121 8 Clock 123 clock set 123 clock source 123 clock timezone 124 clock summer-time 125 sntp authentication-key 126 sntp authenticate 127 sntp trusted-key 128 sntp client poll timer 129 sntp broadcast client enable 129 Contents 7
Command Line Interface Guide
Page 37
... client enable Enables Anycast clients. Interface Configuration Command Groups 37 Configuration sntp authentication-key Defines an authentication key for the SNTP client. Configuration sntp client poll timer Sets the polling time for Simple Network Global Time Protocol (SNTP). Configuration sntp trusted-key Authenticates the identity of addresses present in the bridgeforwarding database. show bridge address...
... client enable Enables Anycast clients. Interface Configuration Command Groups 37 Configuration sntp authentication-key Defines an authentication key for the SNTP client. Configuration sntp client poll timer Sets the polling time for Simple Network Global Time Protocol (SNTP). Configuration sntp trusted-key Authenticates the identity of addresses present in the bridgeforwarding database. show bridge address...
Command Line Interface Guide
Page 38
.... Displays the active system image file that the device loads at startup. Configuration Specifies SNTP UDP port of the SNTP. User EXEC Shows the configuration of the SNTP. Deletes the startup-config file. Privileged User EXEC Configuration and Image Files Commands Command ... of the currently running -config show startup-config show sntp status Enables the device to use the SNTP to a destination. Deletes a file from servers. sntp unicast client enable sntp unicast client poll sntp server show clock show sntp configuration show bootvar Description Displays list of files on ...
.... Displays the active system image file that the device loads at startup. Configuration Specifies SNTP UDP port of the SNTP. User EXEC Shows the configuration of the SNTP. Deletes the startup-config file. Privileged User EXEC Configuration and Image Files Commands Command ... of the currently running -config show startup-config show sntp status Enables the device to use the SNTP to a destination. Deletes a file from servers. sntp unicast client enable sntp unicast client poll sntp server show clock show sntp configuration show bootvar Description Displays list of files on ...
Command Line Interface Guide
Page 66
... Sets up the community access string to permit access to send Simple Network Management Protocol traps when authentication failed. sntp authentication-key Defines an authentication key for received Network Time Protocol (NTP) traffic from servers. spanning-tree hello-time...tree priority. rmon event Configures a RMON event. snmp-server location Sets up a system contact. sntp authenticate Grants authentication for Simple Network Time Protocol (SNTP). snmp-server enable traps Enables the switch to reply. spanning-tree pathcost method Sets the default ...
... Sets up the community access string to permit access to send Simple Network Management Protocol traps when authentication failed. sntp authentication-key Defines an authentication key for received Network Time Protocol (NTP) traffic from servers. spanning-tree hello-time...tree priority. rmon event Configures a RMON event. snmp-server location Sets up a system contact. sntp authenticate Grants authentication for Simple Network Time Protocol (SNTP). snmp-server enable traps Enables the switch to reply. spanning-tree pathcost method Sets the default ...
Command Line Interface Guide
Page 69
... interface. system flowcontrol Enables flow control on a specific port. wrr-queue bandwidth Assigns Weighted Round Robin (WRR) weights to a VLAN. sntp client enable (interface) Enables the Simple Network Time Protocol (SNTP) client on an egress queue. tunnel isatap router Configures a global string that represents a specific automatic tunnel router domain name. tunnel mode...
... interface. system flowcontrol Enables flow control on a specific port. wrr-queue bandwidth Assigns Weighted Round Robin (WRR) weights to a VLAN. sntp client enable (interface) Enables the Simple Network Time Protocol (SNTP) client on an egress queue. tunnel isatap router Configures a global string that represents a specific automatic tunnel router domain name. tunnel mode...
Command Line Interface Guide
Page 124
...8226; hours-offset - User Guidelines • There are no clock source • sntp - Minutes difference from UTC. (Range: -12 - +13) • minutes minutes-offset - Syntax • clock source {sntp} • no user guidelines for this command. Examples The following example configures an ... • The system internally keeps time in UTC, so this command to Coordinated Universal Time (UTC). Command Mode Global Configuration mode. SNTP servers Default Configuration No external clock source. Hours difference from UTC. (Range: 0 - 59) • zone acronym - Command Mode Global...
...8226; hours-offset - User Guidelines • There are no clock source • sntp - Minutes difference from UTC. (Range: -12 - +13) • minutes minutes-offset - Syntax • clock source {sntp} • no user guidelines for this command. Examples The following example configures an ... • The system internally keeps time in UTC, so this command to Coordinated Universal Time (UTC). Command Mode Global Configuration mode. SNTP servers Default Configuration No external clock source. Hours difference from UTC. (Range: 0 - 59) • zone acronym - Command Mode Global...
Command Line Interface Guide
Page 126
... in March • End: First Sunday in November • Time: 2 am local time • EU rule for Simple Network Time Protocol (SNTP). Use the no form of the command specifies when summer time begins, and the second part specifies when it ends. User Guidelines • In ... Summer time is relative to standard time. Console (config)# clock summer-time recurring first sun apr 2:00 last sun oct 2:00 sntp authentication-key The sntp authentication-key Global Configuration mode command defines an authentication key for daylight saving time: • Start: Last Sunday in March •...
... in March • End: First Sunday in November • Time: 2 am local time • EU rule for Simple Network Time Protocol (SNTP). Use the no form of the command specifies when summer time begins, and the second part specifies when it ends. User Guidelines • In ... Summer time is relative to standard time. Console (config)# clock summer-time recurring first sun apr 2:00 last sun oct 2:00 sntp authentication-key The sntp authentication-key Global Configuration mode command defines an authentication key for daylight saving time: • Start: Last Sunday in March •...
Command Line Interface Guide
Page 127
... Key value. (Range: Up to disable the feature. Syntax • sntp authenticate • no sntp authenticate This command has no sntp authentication-key number • number - Syntax • sntp authentication-key number md5 value • no arguments or keywords. Command Mode...authentication key is defined. Console(config)# sntp authentication-key 8 md5 ClkKey Console(config)# sntp trusted-key 8 Console(config)# sntp authenticate sntp authenticate The sntp authenticate Global Configuration mode command grants authentication for SNTP. Examples The following example defines the ...
... Key value. (Range: Up to disable the feature. Syntax • sntp authenticate • no sntp authenticate This command has no sntp authentication-key number • number - Syntax • sntp authentication-key number md5 value • no arguments or keywords. Command Mode...authentication key is defined. Console(config)# sntp authentication-key 8 md5 ClkKey Console(config)# sntp trusted-key 8 Console(config)# sntp authenticate sntp authenticate The sntp authenticate Global Configuration mode command grants authentication for SNTP. Examples The following example defines the ...
Command Line Interface Guide
Page 128
... the system. Command Mode Global Configuration mode. Console(config)# sntp authentication-key 8 md5 ClkKey Console(config)# sntp trusted-key 8 Console(config)# sntp authenticate sntp trusted-key The sntp trusted-key Global Configuration mode command authenticates the identity of authentication...command is at least 1 trusted key, then unauthenticated messages will synchronize. Console(config)# sntp authentication-key 8 md5 ClkKey Console(config)# sntp trusted-key 8 Console(config)# sntp authenticate 128 Clock User Guidelines • The command is relevant for both received Unicast ...
... the system. Command Mode Global Configuration mode. Console(config)# sntp authentication-key 8 md5 ClkKey Console(config)# sntp trusted-key 8 Console(config)# sntp authenticate sntp trusted-key The sntp trusted-key Global Configuration mode command authenticates the identity of authentication...command is at least 1 trusted key, then unauthenticated messages will synchronize. Console(config)# sntp authentication-key 8 md5 ClkKey Console(config)# sntp trusted-key 8 Console(config)# sntp authenticate 128 Clock User Guidelines • The command is relevant for both received Unicast ...
Command Line Interface Guide
Page 129
... time for this command to 120 seconds. Examples The following example sets the polling time for the Simple Network Time Protocol (SNTP) client to disable the SNTP Broadcast clients. Console (config)# sntp client poll timer 120 sntp broadcast client enable The sntp Broadcast client enable Global Configuration mode command enables the Simple Network Time Protocol...
... time for this command to 120 seconds. Examples The following example sets the polling time for the Simple Network Time Protocol (SNTP) client to disable the SNTP Broadcast clients. Console (config)# sntp client poll timer 120 sntp broadcast client enable The sntp Broadcast client enable Global Configuration mode command enables the Simple Network Time Protocol...
Command Line Interface Guide
Page 130
... User Guidelines • Polling time is determined by the sntp client poll timer Global Configuration mode command. • Use the sntp client enable Interface Configuration mode command to enable the SNTP client on a specific interface. Console (config)# sntp broadcast client enable sntp anycast client enable The sntp anycast client enable Global Configuration mode command enables Anycast...
... User Guidelines • Polling time is determined by the sntp client poll timer Global Configuration mode command. • Use the sntp client enable Interface Configuration mode command to enable the SNTP client on a specific interface. Console (config)# sntp broadcast client enable sntp anycast client enable The sntp anycast client enable Global Configuration mode command enables Anycast...
Command Line Interface Guide
Page 131
...SNTP client. Console (config)# sntp client enable sntp client enable (interface) The sntp client enable Interface Configuration mode command enables the Simple Network Time Protocol (SNTP) client on the interface. Syntax • sntp client enable • no sntp client enable This command has no sntp.... Command Mode Global Configuration mode. Default Configuration The SNTP clienit is disabled. sntp client enable The sntp client enable Global Configuration mode command enables the Simple Network Time Protocol (SNTP) Broadcast and Anycast client on an interface. Ethernet port...
...SNTP client. Console (config)# sntp client enable sntp client enable (interface) The sntp client enable Interface Configuration mode command enables the Simple Network Time Protocol (SNTP) client on the interface. Syntax • sntp client enable • no sntp client enable This command has no sntp.... Command Mode Global Configuration mode. Default Configuration The SNTP clienit is disabled. sntp client enable The sntp client enable Global Configuration mode command enables the Simple Network Time Protocol (SNTP) Broadcast and Anycast client on an interface. Ethernet port...
Command Line Interface Guide
Page 132
...Configuration Disabled. Default Configuration Disabled. Syntax • sntp unicast client enable • no sntp unicast client enable This command has no form of this command to define SNTP servers. 132 Clock User Guidelines • Use the sntp client enable Global Configuration mode command to enable ... Configuration mode command to request and accept Network Time Protocol (NTP) traffic from servers. User Guidelines • Use the sntp server command to disable requesting and accepting Network Time Protocol (NTP) traffic from servers. Command Mode Interface Configuration (Ethernet, ...
...Configuration Disabled. Default Configuration Disabled. Syntax • sntp unicast client enable • no sntp unicast client enable This command has no form of this command to define SNTP servers. 132 Clock User Guidelines • Use the sntp client enable Global Configuration mode command to enable ... Configuration mode command to request and accept Network Time Protocol (NTP) traffic from servers. User Guidelines • Use the sntp server command to disable requesting and accepting Network Time Protocol (NTP) traffic from servers. Command Mode Interface Configuration (Ethernet, ...
Command Line Interface Guide
Page 133
...command has no form of this command to remove a server from the list of this command to disable the polling for SNTP client. Use the no arguments or keywords. Command Mode Global Configuration mode. Examples The following example enables the device to ... example enables polling for the Simple Network Time Protocol (SNTP) predefined Unicast clients. Console (config)# sntp unicast client poll sntp server The sntp server Global Configuration mode command configures the device to use the Simple Network Time Protocol (SNTP) to request and accept Network Time Protocol (NTP) ...
...command has no form of this command to remove a server from the list of this command to disable the polling for SNTP client. Use the no arguments or keywords. Command Mode Global Configuration mode. Examples The following example enables the device to ... example enables polling for the Simple Network Time Protocol (SNTP) predefined Unicast clients. Console (config)# sntp unicast client poll sntp server The sntp server Global Configuration mode command configures the device to use the Simple Network Time Protocol (SNTP) to request and accept Network Time Protocol (NTP) ...
Command Line Interface Guide
Page 134
... • ip4-address - Refer to this peer. (Range: 1 - 4294967295) Default Configuration No servers are defined. Authentication key to use the sntp unicast client poll Global Configuration mode command for global enabling. • Polling time is a Link Local address (IPv6Z address), the outgoing interface name..., the default interface is the same as not defining an egress interface. 134 Clock When the IPv6 address is determined by the sntp client poll timer Global Configuration mode command. • The IPv6Z address format: % - User Guidelines • Up to enable predefined...
... • ip4-address - Refer to this peer. (Range: 1 - 4294967295) Default Configuration No servers are defined. Authentication key to use the sntp unicast client poll Global Configuration mode command for global enabling. • Polling time is a Link Local address (IPv6Z address), the outgoing interface name..., the default interface is the same as not defining an egress interface. 134 Clock When the IPv6 address is determined by the sntp client poll timer Global Configuration mode command. • The IPv6Z address format: % - User Guidelines • Up to enable predefined...
Command Line Interface Guide
Page 135
...; The symbol that precedes the show clock display indicates the following example configures the device to accept SNTP traffic from the system clock. Console(config)# sntp server 192.1.1.1 show clock The show clock [detail] • detail - Time is authoritative, but SNTP is authoritative. . Command Mode User EXEC mode. Shows timezone and summertime configuration.
...; The symbol that precedes the show clock display indicates the following example configures the device to accept SNTP traffic from the system clock. Console(config)# sntp server 192.1.1.1 show clock The show clock [detail] • detail - Time is authoritative, but SNTP is authoritative. . Command Mode User EXEC mode. Shows timezone and summertime configuration.
Command Line Interface Guide
Page 136
...system clock. Begins at first Sunday of October at 2:00. Offset is PDT Recurring every year. show sntp configuration The show sntp configuration This command has no keywords or arguments. 136 Clock Syntax • show sntp configuration Privileged EXEC mode command shows the configuration of the Simple Network Time Protocol... (SNTP). Ends at last Sunday of April at 2:00. Console# show clock 15:29:03 PDT(UTC-7) Jun 17 2002 Time source is SNTP Device> show clock detail 15:29:03 PDT(UTC-7) Jun 17 2002...
...system clock. Begins at first Sunday of October at 2:00. Offset is PDT Recurring every year. show sntp configuration The show sntp configuration This command has no keywords or arguments. 136 Clock Syntax • show sntp configuration Privileged EXEC mode command shows the configuration of the Simple Network Time Protocol... (SNTP). Ends at last Sunday of April at 2:00. Console# show clock 15:29:03 PDT(UTC-7) Jun 17 2002 Time source is SNTP Device> show clock detail 15:29:03 PDT(UTC-7) Jun 17 2002...
Command Line Interface Guide
Page 137
User Guidelines • There are no default configuration. Examples Console# show sntp configuration Polling interval: 7200 seconds MD5 Authentication keys: 8, 9 Authentication is required for this command. Default Configuration This command has no user guidelines for synchronization. Command Mode Privileged EXEC mode. Server ----------176.1.1.8 176.1.8.179 Polling -------Enabled Disabled Encryption Key 9 Disabled Broadcast Clients: Enabled Broadcast Clients Poll: Enabled Broadcast Interfaces: g1, g3 Clock 137 Trusted Keys: 8,9 Unicast Clients Polling: Enabled.
User Guidelines • There are no default configuration. Examples Console# show sntp configuration Polling interval: 7200 seconds MD5 Authentication keys: 8, 9 Authentication is required for this command. Default Configuration This command has no user guidelines for synchronization. Command Mode Privileged EXEC mode. Server ----------176.1.1.8 176.1.8.179 Polling -------Enabled Disabled Encryption Key 9 Disabled Broadcast Clients: Enabled Broadcast Clients Poll: Enabled Broadcast Interfaces: g1, g3 Clock 137 Trusted Keys: 8,9 Unicast Clients Polling: Enabled.
Command Line Interface Guide
Page 138
... This command has no keywords or arguments. Examples The following example shows the status of the Simple Network Time Protocol (SNTP). Syntax • show sntp status Clock is synchronized, stratum 4, reference is 176.1.1.8 Reference time is AFE2525E.70597B34 (00:10:22.438 PDT Jul 5 1993) Unicast servers: Server Preference ... response AFE252C1.6DBDDFF2 AFE21789.643287C9 138 Clock Default Configuration This command has no user guidelines for this command. Command Mode Privileged EXEC mode. show sntp status The show sntp status Privileged EXEC mode command shows the status of the...
... This command has no keywords or arguments. Examples The following example shows the status of the Simple Network Time Protocol (SNTP). Syntax • show sntp status Clock is synchronized, stratum 4, reference is 176.1.1.8 Reference time is AFE2525E.70597B34 (00:10:22.438 PDT Jul 5 1993) Unicast servers: Server Preference ... response AFE252C1.6DBDDFF2 AFE21789.643287C9 138 Clock Default Configuration This command has no user guidelines for this command. Command Mode Privileged EXEC mode. show sntp status The show sntp status Privileged EXEC mode command shows the status of the...
Command Line Interface Guide
Page 182
...Example The following example configures the DHCP snooping binding file. Use the no ip dhcp snooping database Default Configuration The URL is synchronized with SNTP. Syntax • ip dhcp snooping database • no form of this command to delete the binding file. Command Mode Global Configuration ... example configures the switch to verify on an untrusted port that the lease time in the database is accurate, Simple Network Time Protocol (SNTP) is enabled and configured. • The switch writes binding changes to default. console (config)#ip dhcp snooping verify ip dhcp snooping...
...Example The following example configures the DHCP snooping binding file. Use the no ip dhcp snooping database Default Configuration The URL is synchronized with SNTP. Syntax • ip dhcp snooping database • no form of this command to delete the binding file. Command Mode Global Configuration ... example configures the switch to verify on an untrusted port that the lease time in the database is accurate, Simple Network Time Protocol (SNTP) is enabled and configured. • The switch writes binding changes to default. console (config)#ip dhcp snooping verify ip dhcp snooping...