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Configuring Flow Control

By default, the router or switch imposes flow control to regulate the amount of traffic sent out on a Fast Ethernet, Tri-Rate Ethernet copper, Gigabit Ethernet, and 10-Gigabit Ethernet interface. Flow control is not supported on the 4-port Fast Ethernet PIC. This is useful if the remote side of the connection is a Fast Ethernet or Gigabit Ethernet switch.

You can disable flow control if you want the router or switch to permit unrestricted traffic. To disable flow control, include the no-flow-control statement:

To explicitly reinstate flow control, include the flow-control statement:

You can include these statements at the following hierarchy levels:

  • [edit interfaces interface-name aggregated-ether-options]
  • [edit interfaces interface-name ether-options]
  • [edit interfaces interface-name fastether-options]
  • [edit interfaces interface-name gigether-options]

Note: On the Type 5 FPC, to prioritize control packets in case of ingress oversubscription, you must ensure that the neighboring peers support MAC flow control. If the peers do not support MAC flow control, then you must disable flow control.

 

Related Documentation

 

Published: 2014-04-25

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