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Disabling Storm Control on FCoE Interfaces on an FCoE-FC Gateway

 

Storm control is not supported on the FCoE interfaces of an FCoE-FC gateway VLAN. Enabling storm control on an FCoE-FC gateway VLAN interface may cause FCoE packet loss. Storm control is disabled by default on all interfaces. However, if you enabled storm control globally on all switch interfaces or on any interfaces that are part of the FCoE VLAN interface, you must disable storm control on the Ethernet interfaces of the FCoE VLAN.

If storm control is enabled on only a few interfaces of the FCoE VLAN, you can disable storm control on individual interfaces by including the delete ethernet-switching-options storm-control interface interface-name statement in the configuration, where interface-name is the name of the interface on which you want to disable storm control.

If storm control is enabled globally on the switch when the switch is acting as an FCoE-FC gateway, it is often easiest to disable storm control on all interfaces, then enable storm control only on Ethernet interfaces that are not part of the FCoE VLAN interface.

If storm control is enabled globally, you can disable storm control in either of two ways:

  • Disable storm control on all interfaces, then enable storm control on the interfaces you want to use storm control. (From the default configuration, you cannot disable storm control on individual interfaces because the default configuration enables storm control on all interfaces, not on individual interfaces.)

    For example, if you want interfaces xe-0/0/20, xe-0/0/21, and xe-0/0/22 to use storm control, disable storm control on all interfaces, then enable storm control on those three interfaces:

    1. Disable storm control on all interfaces:
      user@switch# delete ethernet-switching-options storm-control interface all
    2. Enable storm control on interfaces xe-0/0/20, xe-0/0/21, and xe-0/0/22:
      user@switch# set ethernet-switching-options storm-control interface xe-0/0/20
      user@switch# set ethernet-switching-options storm-control interface xe-0/0/21
      user@switch# set ethernet-switching-options storm-control interface xe-0/0/22
  • Disable storm control for all unknown unicast traffic on all interfaces by including the following statement in your configuration:

    user@switch# set ethernet-switching-options storm-control interface all no-unknown-unicast