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Enabling and Disabling CoS OxID Hash Control for FCoE Traffic on QFabric Systems

The originator exchange identifier (OxID) field is one of several fields used in the hash function computation for FCoE traffic load balancing over multiple outgoing links in an Ethernet link aggregation group (LAG) on ports that face an FCoE forwarder (FCF). The QFabric system Node device ports can be 10-Gigabit Ethernet ports or 40-Gigabit fabric ports. (The 40-Gigabit fabric ports that connect a QFabric system Node device to QFabric system Interconnect devices function as a LAG even though they are not explicitly configured as a LAG.)

The originator of an exchange between a pair of Fibre Channel (FC) endpoints (such as an FCoE host and an FC storage device) uses the OxID field as an identifier for that exchange. The originator also uses the OxID field to track the progress of the series of sequences that comprise the exchange.

OxID hash control is enabled by default.

You can enable or disable OxID hash control on the 10-Gigabit Ethernet interfaces and on the 40-Gigabit fabric interfaces of a QFabric system Node group. OxID hash control is either enabled or disabled on all of the fabric or Ethernet interfaces of a Node group. For example, you cannot disable OxID hash control on some fabric interfaces in a Node group and leave OxID hash control enabled on other fabric interfaces of the same Node group.

  1. To enable or disable OxID hash control on all of the 10-Gigabit Ethernet interfaces of a specified Node group or on all Node groups:

    For example, to disable OxID hash control on all of the 10-Gigabit Ethernet interfaces of a Node group named RSNG1:

  2. To enable or disable OxID hash control on all of the 40-Gigabit fabric interfaces of a specified Node group or on all Node groups:

    For example, to disable OxID hash control on the fabric interfaces of all Node groups: