Installation guide
NOTE
You should set the clock only if there are no NTP servers configured. Time synchronization from NTP
servers overrides the local clock.
1. Log in to the device using an account that has the admin role.
2. Enter the clock set year-month-dayT hours:minutes:seconds command while in privileged EXEC
mode.
The following example sets the clock to March 17, 2012, 15 minutes past noon.
device# clock set 2012-03-17T12:15:00
If you want to show the clock and time zone settings, use the show clock command.
device# show clock
rbridge-id 1: 2012-03-17 12:15:00 America/Los_Angeles
Configuring operating modes on 27x40 GbE line cards
You can configure Performance or Density mode for the port groups on the 27x40 GbE line card . When
configured in Performance mode, the third port in the group is persistently disabled, allowing the
remaining two ports to operate at up to 40 Gbps. When Density mode (default) is configured, all three
ports in the group are enabled, but will operate at below the 40 Gbps maximum rate.
Use the following steps to set Density and Performance modes on port groups on 27x40 GbE line
cards.
1. Log in to the device using an account that has the admin role.
2. Power off the line card.
device# power-off linecard 3
3. Issue the configure terminal command to enter global configuration mode.
device# configure terminal
Entering configuration mode terminal
4. Enter the hardware command to enter hardware configuration mode.
device(config)# hardware
5. Enter the port-group command to enter configuration mode for a specific port group.
There are nine port groups on the line card. To identify the port group, use the command with the
appropriate values for the rbridge-id/slot-id/port group-id parameters. For example, 1/3/9 denotes
RBridge ID 1, slot 3, and port group 9.
device(config-hardware)# port-group 1/3/9
6. Perform one of the following steps:
• Enter the mode performance command to configure Performance mode for the port group.
device(config-port-group-1/3/9)# mode performance
%Warning: port-group mode performance is a disruptive command.
Please save the running-config to startup-config and a power-cycle for the
changes to take place.
Configuring operating modes on 27x40 GbE line cards
Brocade VDX 8770-8 Hardware Installation Guide 45
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