====== PAUSE Frame ======

{{template>:meta:template:pageinfo#tpl
|desc=Introduce the ''PAUSE'' frame in Ethernet.}}

The PAUSE operation is used to inhibit transmission of data frames from another station on the network for a specified period of time.

===== MAC_CONTROL.request Primitive =====

  * The 48-bit multicast address ''01-80-C2-00-00-01''  or unicast MAC address of another station.
  * The PAUSE opcode '' 16'h00-01''.
  * A request_operand indicating the length of time for which it wishes to inhibit data frame transmission.

<callout type="warning" icon="fa fa-exclamation">

  * The PAUSE operation cannot be used to inhibit transmission of MAC Control frames.
  * Only supported in **full duplex** mode .
  * When MAC Control PFC operation has been enabled, MAC Control PAUSE operation shall be disabled.

</callout>

===== Frame Format =====

Refer to [[network:ethernet:macctrl:start#mac_control_frame_format|MAC control frames format]].

==== Reference ====

  * **802.3-2022 **//Annex 31B - MAC Control PAUSE operation//