Description: This table contains the network element view of optical patches between two interfaces on the same network element.

It is up to the user to keep the provisioned information that is reflected in this table in sync with the actual patches present between interfaces on the network element. Provisioning of a patch in this table does not cause a patch to be inserted; it only informs the network element that a patch has been, or is soon to be, added or removed.

Each entry in the table models a unidirectional or bidirectional patch between two interfaces on the same network element. When one interface is patched to two different interfaces, one in the receive direction and the other in the transmit direction, the interface will appear in two different entries in the table.

The terms low and high are chosen to represent numerical ordering of the two interfaces associated with a patch. That is, the interface with the lower value of ifIndex is termed 'low', while the other interface associated with the patch is termed 'high'.