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Use the set summertime command to specify whether the system should set the clock ahead one hour during daylight saving time.
set summertime {enable | disable} [zone]
enable | Keyword to cause the system to set the clock ahead one hour during daylight saving time. |
disable | Keyword to prevent the system from setting the clock ahead one hour during daylight saving time. |
zone | (Optional) Time zone used by the set summertime command. |
The default is that this command is disabled.
Switch command.
Privileged.
This command advances the clock one hour at 2:00 a.m. on the first Sunday in April and moves back the clock one hour at 2:00 a.m. on the last Sunday in October.
This example shows how to cause the system to set the clock ahead one hour during daylight saving time:
Console> (enable) set summertime enable PDT Summertime is enabled and set to "PDT". Console> (enable)
This example shows how to prevent the system from setting the clock ahead one hour during daylight saving time:
Console> (enable) set summertime disable Summertime disabled. Console> (enable)
Use the set system baud command to set the console port baud rate.
set system baud rate
rate | Baud rate. Valid rates are 9600, 19200, and 38400. |
The default is 9600 baud.
Switch command.
Privileged.
This example shows how to set the system baud rate to 19200:
Console> (enable) set system baud 19200 System console port baud rate set to 19200. Console> (enable)
Use the set system contact command to identify a contact person for the system.
set system contact [contact_string]
contact_string | (Optional) Text string that contains the name of the person to contact for system administration. If no contact string is specified, the system contact string is cleared. |
The default is no system contact is configured.
Switch command.
Privileged.
This example shows how to set the system contact string:
Console> (enable) set system contact Xena ext.24 System contact set. Console> (enable)
Use the set system location command to identify the location of the system.
set system location [location_string]
location_string | (Optional) Text string that indicates where the system is located. If no location string is specified, the system location is cleared. |
This command has no default setting.
Switch command.
Privileged.
This example shows how to set the system location string:
Console> (enable) set system location Closet 230 4/F System location set. Console> (enable)
Use the set system modem command to enable or disable modem control lines on the console port.
set system modem {enable | disable}
enable | Keyword to activate modem control lines on the console port. |
disable | Keyword to deactivate modem control lines on the console port. |
The default is modem control lines are disabled.
Switch command.
Privileged.
This example shows how to disable modem control lines on the console port:
Console> (enable) set system modem disable Modem control lines disabled on console port. Console> (enable)
Use the set system name command to configure a name for the system.
set system name [name_string]
name_string | (Optional) Text string that identifies the system. If no name is specified, the system name is cleared. |
The default is no system name is configured.
Switch command.
Privileged.
If you use the set system name command to assign a name to the switch, the switch name is used as the prompt string. However, if you specify a different prompt string using the set prompt command, that string is used for the prompt.
If you do not specify a system name, the system name is cleared, and a DNS lookup is initiated for a system name. If a name is found, that is the name used; if no name is found, no name is designated.
The system name can be 255 characters long, and the prompt can be 20 characters long. The system name is truncated appropriately when used as a prompt; a greater-than symbol (>) is appended to the truncated system name. If the system name was found from a DNS lookup, it is truncated to remove the domain name.
If the prompt is obtained using the system name, it is updated whenever the system name changes. You can overwrite this prompt any time by setting the prompt manually. Any change in the prompt is reflected in all current open sessions.
This example shows how to set the system name to Information Systems:
Console> (enable) set system name Information Systems System name set. Console> (enable)
Use the set tacacs attempts command to configure the maximum number of login attempts allowed to the TACACS+ server.
set tacacs attempts count
count | Number of login attempts allowed (1 to 10). |
The default is three attempts.
Switch command.
Privileged.
This example shows how to configure the TACACS+ server to allow a maximum of six login attempts:
Console> (enable) set tacacs attempts 6 Tacacs number of attempts set to 6. Console> (enable)
Use the set tacacs directedrequest command to enable or disable the TACACS+ directed-request option. When enabled, you can direct a request to any of the configured TACACS+ servers and only the username is sent to the specified server.
set tacacs directedrequest {enable | disable}
enable | Keyword to send the portion of the address before the @ sign (the username) to the host specified after the @ sign. |
disable | Keyword to send the entire address string to the default TACACS+ server. |
This default is the TACACS+ directed-request option is disabled.
Switch command.
Privileged.
When tacacs directedrequest is enabled, you must specify a configured TACACS+ server after the @ sign. If the specified host name does not match the IP address of a configured TACACS+ server, the request is rejected. When tacacs directedrequest is disabled, the Catalyst 6000 or 6500 series switch queries the list of servers beginning with the first server in the list and then sends the entire string, accepting the first response from the server. This command is useful for sites that have developed their own TACACS+ server software to parse the entire address string and make decisions based on the contents of the string.
This example shows how to enable the tacacs directedrequest option:
Console> (enable) set tacacs directedrequest enable Tacacs direct request has been enabled. Console> (enable)
Use the set tacacs key command to set the key for TACACS+ authentication and encryption.
set tacacs key key
key | Printable ASCII characters used for authentication and encryption. Key length is limited to 100 characters. |
The default value of key is null.
Switch command.
Privileged.
The key must be the same as the key used on the TACACS+ server. All leading spaces are ignored. Spaces within the key and at the end of the key are included. Double quotation marks are not required, even if there are spaces between words in the key, unless the quotation marks themselves are part of the key. The key can consist of any printable ASCII characters except the tab character.
This example shows how to set the authentication and encryption key:
Console> (enable) set tacacs key Who Goes There The tacacs key has been set to Who Goes There. Console> (enable)
clear spantree uplinkfast
show tacacs
Use the set tacacs server command to define a TACACS+ server.
set tacacs server ip_addr [primary]
ip_addr | IP address of the server on which the TACACS+ server resides. |
primary | (Optional) Keyword to designate the specified server as the primary TACACS+ server. |
This command has no default setting.
Switch command.
Privileged.
You can configure a maximum of three servers. The primary server, if configured, is contacted first. If no primary server is configured, the first server configured becomes the primary server.
This example shows how to configure the server on which the TACACS+ server resides and to designate it as the primary server:
Console> (enable) set tacacs server 170.1.2.20 primary 170.1.2.20 added to TACACS server table as primary server. Console> (enable)
clear tacacs server
show tacacs
Use the set tacacs timeout command to set the response timeout interval for the TACACS+ server daemon. The TACACS+ server must respond to a TACACS+ authentication request before this interval expires or the next configured server is queried.
set tacacs timeout seconds
seconds | Timeout response interval in seconds (1 to 255). |
The default is 5 seconds.
Switch command.
Privileged.
This example shows how to set the response timeout interval for the TACACS+ server to 8 seconds:
Console> (enable) set tacacs timeout 8 Tacacs timeout set to 8 seconds. Console> (enable)
Use the set time command to change the time of day on the system clock.
set time [day_of_week] [mm/dd/yy] [hh:mm:ss]
day_of_week | (Optional) Day of the week. |
mm/dd/yy | (Optional) Month, day, and year. |
hh:mm:ss | (Optional) Current time in 24-hour format. |
This command has no default setting.
Switch command.
Privileged.
This example shows how to set the system clock to Saturday, October 31, 1998, 7:50 a.m:
Console> (enable) set time sat 10/31/98 7:50 Sat Oct 31 1998, 07:50:00 Console> (enable)
Use the set timezone command to set the time zone for the system.
set timezone [zone_name] [hours [minutes]]
zone_name | (Optional) Name of the time zone to be displayed. |
hours | (Optional) Number of hours offset from UTC. |
minutes | (Optional) Number of minutes offset from UTC. If the specified hours value is a negative number, then the minutes value is assumed to be negative as well. |
The default is the time zone is set to UTC.
Switch command.
Privileged.
The set timezone command is effective only when NTP is running. If you set the time explicitly and NTP is disengaged, the set timezone command has no effect. If you have enabled NTP and have not entered the set timezone command, the Catalyst 6000 or 6500 series switch displays UTC by default.
This example shows how to set the time zone to Pacific Standard Time with an offset of minus 8 hours from UTC:
Console> (enable) set timezone PST -8 Timezone set to "PST", offset from UTC is -8 hours. Console> (enable)
Use the set trunk command to configure trunk ports and to add VLANs to the allowed VLAN list for existing trunks.
set trunk mod_num/port_num {on | off | des | auto | noneg} [isl | dot1q | negotiate] [vlan_range]
mod_num | Number of the module. |
port_num | Number of the port on the module. |
on | Keyword to force the port to become a trunk port and persuade the neighboring port to become a trunk port. The port becomes a trunk port even if the neighbor port does not agree to become a trunk. |
off | Keyword to force the port to become a nontrunk port and persuade the neighboring port to become a nontrunk port. The port becomes a nontrunk port even if the neighbor port does not agree to become a nontrunk port. |
des | Keyword to cause the port to negotiate actively with the neighbor port to become a trunk link. |
auto | Keyword to cause the port to become a trunk port if the neighboring port tries to negotiate a trunk link. This is the default mode for EtherChannel ports. |
noneg | Keyword to force the port to become a trunk port but prevent it from sending DTP frames to its neighbor. |
isl | (Optional) Keyword to specify an ISL trunk on a Fast Ethernet or Gigabit Ethernet port. |
dot1q | (Optional) Keyword to specify an IEEE 802.1Q trunk on a Fast Ethernet or Gigabit Ethernet port. |
negotiate | (Optional) Keyword to specify that the port become an ISL (preferred) or 802.1Q trunk, depending on the configuration and capabilities of the neighboring port. |
vlan_range | (Optional) VLANs to add to the list of allowed VLANs on the trunk. The VLAN range is 1 to 1000. |
The default port mode is 802.1Q-Native.
Switch command.
Privileged.
The following usage guidelines apply when using the set trunk command:
This example shows how to set port 2 on module 1 as a trunk port:
Console> (enable) set trunk 1/2 on Port(s) 1/2 trunk mode set to on. Console> (enable)
This example shows how to add VLANs 5 through 50 to the allowed VLAN list for a trunk port (VLANs were previously removed from the allowed list with the clear trunk command):
Console> (enable) set trunk 1/1 5-50 Adding vlans 5-50 to allowed list. Port(s) 1/1 allowed vlans modified to 1,5-50,101-1005. Console> (enable)
This example shows how to set port 5 on module 4 as an 802.1Q trunk port in desirable mode:
Console> (enable) set trunk 4/5 desirable dot1q Port(s) 4/5 trunk mode set to desirable. Port(s) 4/5 trunk type set to dot1q. Console> (enable)
clear trunk
set vtp
show trunk
show vtp statistics
Posted: Mon May 17 11:34:59 PDT 1999
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