Resolving a Layer 3 address includes maintaining an address resolution table at each slave processor of a number of slave processors. The slave processors have a master processor, and the master processor and the slave processors are associated with a unified address. An address resolution table includes one or more Layer 2-Layer 3 address mappings. An address resolution request requesting a Layer 2 address corresponding to a Layer 3 address is sent from a slave processor. The address resolution request uses the unified address. An address resolution response comprising the Layer 2 address is received at the master processor. The master processor sends the response to the slaves.