cl2natInstConfigInstanceTable
This table contains multiple Layer 2 NAT instances. Each Layer 2 NAT instance has a unique name and consists of configurations other than the list of IP NAT translations for which there is a separate table. An instance only becomes effective on traffic after being applied to an interface/vlan combination, which is done through the cl2natInterfaceConfigTable.
This OID is also declared by other modules:
CISCO-L2NAT-MIB