Juniper EX9214 Hardware Manual page 127

NOTE: Note the following when you configure rate selectability on an EX9200-12QS line card:
• When you boot the line card:
• If rate selectability is not configured, all ports of the line card operate at the default speed
as four 10-Gigabit Ethernet interfaces.
• If rate selectability is configured with invalid port speeds, all ports for which invalid speeds
were configured operate at the default speed.
• If valid port speeds are configured, the ports operate at the configured speeds.
• When you change an existing port-speed configuration, for the configuration to take effect,
you must do either of the following:
• Reset the PICs to which the configured ports belong, by using the request chassis pic pic-
pic-slot-number fpc-slot fpc-slot-number (online | offline) command. Because resetting
slot
the line card takes several minutes and because it affects all the Packet Forwarding
Engines, use this command to apply your configuration changes quickly.
• Reset the line card
An alarm is generated indicating the change in port-speed configuration.
• When you change an existing port-speed configuration to an invalid port-speed configuration
and commit the configuration, an alarm is generated indicating that the port-speed
configuration is invalid. The port continues to operate at the existing port speed.
• You cannot configure rate selectability at the PIC level and the port level simultaneously. Error
messages are displayed when you try to commit such configurations.
• If you configure rate selectability at the port level, logical interfaces are created only on the
configured ports. No logical interfaces are created on the other ports.
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