* @em Uses:
* - <code>(l2_output_classify_runtime_t *)
* rt->classify_table_index_by_sw_if_index</code>
- * Head of the per-interface, perprotocol classifier table chain
+ * Head of the per-interface, per-protocol classifier table chain
* for a specific interface. ~0 => send pkts to the next
* feature in the L2 feature chain.
* - <code>vnet_buffer(b)->sw_if_index[VLIB_TX]</code>