In reply to chr_sue:
In theory, you can extend the type of the seq_item_export port (you need to create a class which inherits uvm_port_base #(uvm_sqr_if_base #(REQ, RSP))) to allow multiple connections to it, this can be done by overriding the new method. You must create a custom sequencer class which inherits the uvm_sequencer_param_base #(REQ, RSP) class. This custom sequencer class will instantiate a seq_item_export port whose type will be the newly port type. Your sequencers must inherit the custom sequencer class and after that you can connect two sequencers to a single driver.
just explain me this.if u dont mine